Searching the RRID Resource Information Network

Our searching services are busy right now. Please try again later

  • Register
X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

X

Leaving Community

Are you sure you want to leave this community? Leaving the community will revoke any permissions you have been granted in this community.

No
Yes

Preparing word cloud

×

SciCrunch Registry is a curated repository of scientific resources, with a focus on biomedical resources, including tools, databases, and core facilities - visit SciCrunch to register your resource.

Search

Type in a keyword to search

Filter by records added date
See new records

Options


Current Facets and Filters

  • Funding Agency:nsf (facet)

Facets


Recent searches

Snippet view Table view
Click the to add this resource to a Collection

473 Results - per page

Show More Columns | Download 473 Result(s)

Resource Name Proper Citation Abbreviations Resource Type Description Keywords Resource Relationships Related Condition Funding Defining Citation Availability Specification URL Alternate IDs Alternate URLs Old URLs Parent Organization Resource ID Synonyms Record Last Update Mentions Count
PICRUSt
 
Resource Report
Resource Website
10+ mentions
PICRUSt (RRID:SCR_016855) PICRUSt simulation software, software resource, software application Software package to predict metagenome functional content from marker gene (e.g., 16S rRNA) surveys and full genomes. Used to predict which gene families are present and then combines gene families to estimate the composite metagenome. predict, metagenome, functional, content, DNA, sample, marker, gene, sequence, data, microbiome, 16S, RNA is related to: PICRUSt2 Canadian Institutes of Health Research ;
Canada Research Chairs program ;
Howard Hughes Medical Institute ;
NIDDK P01 DK078669;
NHGRI U01 HG004866;
NHGRI R01 HG004872;
Crohn’s and Colitis Foundation of America ;
Sloan Foundation ;
NHGRI R01 HG005969;
NSF CAREER DBI1053486;
ARO W911NF1110473
PMID:23975157 Free, Available for download, Freely available SCR_016856 SCR_016855 Phylogenetic Investigation of Communities by Reconstruction of Unobserved States, PICRUSt 2026-08-02 09:07:32 36
NeuroRD
 
Resource Report
Resource Website
10+ mentions
NeuroRD (RRID:SCR_014769) simulation software, software resource, software application Stochastic reaction-diffusion simulator in Java which is used for simulating neuronal signaling pathways. simulation software, simulator, java, neuronal signaling pathway, neuron HFSP ;
NIMH K21-MH01141;
NSF IBN 0077509;
CRCNS program R01 AA16022;
CRCNS program AA18066
Available for download https://github.com/neurord/stochdiff/releases SCR_014769 2026-08-02 09:06:39 13
forqs
 
Resource Report
Resource Website
forqs (RRID:SCR_000643) forqs simulation software, software resource, software application Software for forward-in-time population genetics simulation that tracks individual haplotype chunks as they recombine each generation. It also also models quantitative traits and selection on those traits. c++, linux, osx, windows, command line, simulation, recombination, quantitative trait, selection, haplotype pattern is listed by: OMICtools
has parent organization: University of California at Los Angeles; California; USA
has parent organization: Bitbucket
NHGRI HG002536;
NHGRI R01 HG007089;
NSF EF-0928690
PMID:24336146 Free, Available for download, Freely available OMICS_02196 SCR_000643 Forward-in-time simulation of Recombination, and Selection, Quantitative traits 2026-08-02 09:02:58 0
CalC
 
Resource Report
Resource Website
10+ mentions
CalC (RRID:SCR_014259) simulation software, software resource, software application A modeling tool for simulating intracellular calcium diffusion and buffering. CalC solves continuous reaction-diffusion PDEs describing the entry of calcium into a volume through point-like channels, and its diffusion, buffering and binding to calcium receptors. Its features include: being platform-independent; being operated by simple script; combinable with MATLAB; and providing real-time views. Demos and manuals are provided on the website. simulation software, modeling tool, intracellular calcium diffusion, intracellular calcium buffering, pde NSF 0417416;
NSF 0817703;
NSF 1517085
Free, Acknowledgement requested SCR_014259 Calcium Calculator 2026-08-02 09:06:28 30
DELSA
 
Resource Report
Resource Website
1+ mentions
DELSA (RRID:SCR_006231) DELSA organization portal, data or information resource, portal THIS RESOURCE IS NO LONGER IN SERVICE. Documented on July 1, 2022. Organization whose mission is to build and promote a sustainable ecosystem of professional societies, funding agencies, foundations, companies, and citizens together with life science researchers and innovators in computing, infrastructure and analysis with the expressed goal of translating new discoveries into tools, resources and products. life science, collective innovation, framework, data sharing, science, education, environment, energy, ecology, food, healthcare, transdiscipline, collaboration NSF PMID:22523528 THIS RESOURCE IS NO LONGER IN SERVICE. nlx_151790 SCR_006231 Data-Enabled Life Sciences Alliance, DELSAglobal, DELSA: Data-Enabled Life Sciences Alliance, DELSA Global, Data-enabled Life Science Initiative 2026-08-02 09:04:32 2
XSEDE - Extreme Science and Engineering Discovery Environment
 
Resource Report
Resource Website
10+ mentions
XSEDE - Extreme Science and Engineering Discovery Environment (RRID:SCR_006091) XSEDE data or information resource, portal XSEDE is a single virtual system that scientists can use to interactively share computing resources, data and expertise. People around the world use these resources and services things like supercomputers, collections of data and new tools to improve our planet. XSEDE resources may be broadly categorized as follows: High Performance Computing, High Throughput Computing, Visualization, Storage, and Data Services. Many resources provide overlapping functionality across categories. Scientists, engineers, social scientists, and humanists around the world - many of them at colleges and universities - use advanced digital resources and services every day. Things like supercomputers, collections of data, and new tools are critical to the success of those researchers, who use them to make our lives healthier, safer, and better. XSEDE integrates these resources and services, makes them easier to use, and helps more people use them. XSEDE supports 16 supercomputers and high-end visualization and data analysis resources across the country. Digital services, meanwhile, provide users with seamless integration to NSF''s high-performance computing and data resources. XSEDE''s integrated, comprehensive suite of advanced digital services will federate with other high-end facilities and with campus-based resources, serving as the foundation for a national cyberinfrastructure ecosystem. Common authentication and trust mechanisms, global namespace and filesystems, remote job submission and monitoring, and file transfer services are examples of XSEDE''s advanced digital services. XSEDE''s standards-based architecture allows open development for future digital services and enhancements. XSEDE also provides the expertise to ensure that researchers can make the most of the supercomputers and tools. data sharing, computing, supercomputer, data, tool, visualization, data analysis, cyberinfrastructure, digital service, high performance computing, high throughput computing, visualization, storage, data service is related to: Neuroscience Gateway
has parent organization: San Diego Supercomputer Center
NSF OCI-1053575 nlx_151554, grid.501421.3 https://ror.org/05524hb64 SCR_006091 XSEDE - Extreme Science Engineering Discovery Environment, Extreme Science and Engineering Discovery Environment 2026-08-02 09:04:29 27
Polar Geospatial Center
 
Resource Report
Resource Website
Polar Geospatial Center (RRID:SCR_000402) PGC organization portal, data or information resource, portal Portal as data resource, map repository, and GIS service provider for federally-funded scientists conducting research in the Arctic and Antarctic. The PGC holds an extensive collection of satellite imagery and aerial photography at varying resolutions. arctic, antarctic, geospatial, polar, mapping, gis, remote sensing, cartography, map, image collection, satellite imagery, aerial photography is listed by: CINERGI
has parent organization: University of Minnesota Twin Cities; Minnesota; USA
NSF Free, Freely available nlx_154743 SCR_000402 2026-08-02 09:02:52 0
Open Archives Initiative - Object Reuse and Exchange Initiative
 
Resource Report
Resource Website
1+ mentions
Open Archives Initiative - Object Reuse and Exchange Initiative (RRID:SCR_006982) OAI-ORE, OAI ORE narrative resource, data or information resource, standard specification Initiative which defines standards for the description and exchange of aggregations of Web resources. The intent of the effort is to develop standards that generalize across all web-based information including the increasing popular social networks of web 2.0. The goal of these standards is to expose the rich content in these aggregations (sometimes called compound digital objects, they may combine distributed resources with multiple media types including text, images, data, and video) to applications that support authoring, deposit, exchange, visualization, reuse, and preservation. The specific aim of the ORE effort is to promote (through creation or endorsement) effective and consistent mechanisms which: facilitate discovery of compound digital objects; reference (or link to) these objects (as well as parts thereof); obtain a variety of disseminations of these objects; aggregate and disaggregate objects; and enable processing of objects by automated agents. compound digital object, aggregation, metadata standard, ontology, interoperability, atom, rdf, xml, rdfa is listed by: FORCE11 Open Archives Initiative ;
Andrew W. Mellon Foundation ;
NSF
Creative Commons Attribution-NonCommercial-ShareAlike License, v3 Unported nif-0000-10391 http://dltj.org/article/ore-introduction/InSeries-oai-object-reuse-and-exchange SCR_006982 2026-08-03 09:33:15 2
Magnetics Information Consortium
 
Resource Report
Resource Website
10+ mentions
Magnetics Information Consortium (RRID:SCR_007098) MagIC data repository, data or information resource, database, storage service resource, service resource, software resource Databases that accept and provide access to paleomagnetic and rock magnetic data. The paleomagnetic data range from individual measurements to specimen, sample or site level results, including a wide variety of derived parameters or associated rock magnetic measurements. The rock magnetic database includes data collected during rock magnetic experiments on remanence, anisotropy, hysteresis and susceptibility. The MagIC Console Software provides an effective environment in Microsoft Excel where users can collate and prepare their paleomagentic and rock magnetic data for uploading in the Online MagIC Database. paleomagnetism, rock, magnetic, paleomagnetic, geomagnetic, rock magnetic is listed by: CINERGI
has parent organization: San Diego Supercomputer Center
NSF EAR 0202996;
NSF EAR-IF 0318672-0744107-0744108
Non-commercial, For scientific or educational purposes, Acknowledgement required, Copyrighted, The community can contribute to this resource nlx_154712, SciRes_000151, r3d100011910 https://doi.org/10.17616/R3NM0W SCR_007098 Magnetics Information Consortium (MagIC), MagIC Portal, MagIC database 2026-08-03 09:33:18 30
Comparative Sequencing of Plant Small RNAs
 
Resource Report
Resource Website
1+ mentions
Comparative Sequencing of Plant Small RNAs (RRID:SCR_007003) production service resource, data analysis service, service resource, analysis service resource, data or information resource, data set This project has developed a sequence dataset of plant small RNAs based on the hypothesis that most if not all plants utilize important small RNA signaling networks. Different plant families are likely to have both common and lineage-specific miRNAs or other small RNAs with important biological roles. Comparative genomics approaches can be applied to distinguish potential miRNAs from siRNAs and to match the miRNAs to the target sequences. This project develops an unparalleled resource of millions of plant small RNAs for comparative analyses. The project includes sequencing of small RNAs from a diverse and agronomically-relevant set of plant species, focused analyses of important members of the Solanaceae and Poaceae, and development of a small RNA database and web interface for public access and analysis of data. These data will allow the experimental characterization of the majority of biologically important small RNAs for a range of plant species, and will be tremendously useful to a broad set of plant biologists interested in development, stress responses, epigenetics, evolution, RNA biology and other traits impacted by small RNAs. We offer a variety of tools to query the small RNA data set, with options to identify sequences based on homology, expression levels, conservation, or potential function: 1. Small RNA mapping tool: searches for small RNAs perfectly matching a genomic sequence provided by the user. 2. Small RNA mismatch tool: searches the database for small RNAs or other short sequences provided by the user, allowing mismatches. 3. Library-comparison tool to identify conserved small RNAs. 4. Library-comparison tool to identify differentially regulated small RNAs. 5. Reverse Target Prediction. has parent organization: University of Delaware; Delaware; USA NSF 0638525 nlx_37749 SCR_007003 2026-08-03 09:33:19 1
Genes to Cognition: Neuroscience Research Programme
 
Resource Report
Resource Website
10+ mentions
Genes to Cognition: Neuroscience Research Programme (RRID:SCR_007121) topical portal, data or information resource, portal A neuroscience research program that studies genes, the brain and behavior in an integrated manner, established to elucidate the molecular mechanisms of learning and memory, and shed light on the pathogenesis of disorders of cognition. Central to G2C investigations is the NMDA receptor complex (NRC/MASC), that is found at the synapses in the central nervous system which constitute the functional connections between neurons. Changes in the receptor and associated components are thought to be in a large part responsible for the phenomenon of synaptic plasticity, that may underlie learning and memory. G2C is addressing the function of synapse proteins using large scale approaches combining genomics, proteomics and genetic methods with electrophysiological and behavioral studies. This is incorporated with computational models of the organization of molecular networks at the synapse. These combined approaches provide a powerful and unique opportunity to understand the mechanisms of disease genes in behavior and brain pathology as well as provide fundamental insights into the complexity of the human brain. Additionally, Genes to Cognition makes available its biological resources, including gene-targeting vectors, ES cell lines, antibodies, and transgenic mice, generated for its phenotyping pipeline. The resources are freely-available to interested researchers. cognition, gene, neuroscience is listed by: 3DVC
has parent organization: Wellcome Trust Sanger Institute; Hinxton; United Kingdom
Wellcome Trust ;
MRC ;
BBSRC ;
Gatsby Charitable Foundation ;
Human Frontiers Science Programme ;
European Union ;
Framework Programme ;
EPSRC ;
NSF
nif-0000-10235 SCR_007121 G2C Neuroscience Research Program, G2C Research Programme, Genes to Cognition: Neuroscience Research Program, Genes to Cognition, G2C, Genes to Cognition - Neuroscience Research Programme, Genes to Cognition-Neuroscience Research Programme, G2C Research Program 2026-08-03 09:33:22 19
fMRI Data Center
 
Resource Report
Resource Website
10+ mentions
fMRI Data Center (RRID:SCR_007278) fMRIDC data repository, data or information resource, database, storage service resource, service resource THIS RESOURCE IS NO LONGER IN SERVICE, documented August 25, 2013 Public curated repository of peer reviewed fMRI studies and their underlying data. This Web-accessible database has data mining capabilities and the means to deliver requested data to the user (via Web, CD, or digital tape). Datasets available: 107 NOTE: The fMRIDC is down temporarily while it moves to a new home at UCLA. Check back again in late Jan 2013! The goal of the Center is to help speed the progress and the understanding of cognitive processes and the neural substrates that underlie them by: * Providing a publicly accessible repository of peer-reviewed fMRI studies. * Providing all data necessary to interpret, analyze, and replicate these fMRI studies. * Provide training for both the academic and professional communities. The Center will accept data from those researchers who are publishing fMRI imaging articles in peer-reviewed journals. The goal is to serve the entire fMRI community. fmri, cognitive, cortex, mri, talairach, neuroimaging, cognitive neuroscience, brain, structure, function, magnetic resonance, intellect, image collection, data set is listed by: NeuroImaging Tools and Resources Collaboratory (NITRC)
is listed by: Biositemaps
is listed by: re3data.org
has parent organization: University of California at Santa Barbara; California; USA
NSF ;
W. M. Keck Foundation ;
NIMH ;
Sun Microsystems Center of Excellence
PMID:11545705 THIS RESOURCE IS NO LONGER IN SERVICE nif-0000-00025 http://www.fmridc.org/ SCR_007278 The fMRI Data Center 2026-08-03 09:33:24 16
Lyngby
 
Resource Report
Resource Website
1+ mentions
Lyngby (RRID:SCR_007143) Lyngby software resource, data processing software, software application, data analysis software Matlab toolbox for the analysis of functional neuroimages (PET, fMRI). The toolbox contains a number of models: FIR-filter, Lange-Zeger, K-means clustering among others, visualizations and reading of neuroimaging files. functional, statistical, fmri, pet, matlab, neuroimaging is listed by: Biositemaps
has parent organization: THOR Center for Neuroinformatics
Human Brain Project ;
Danish Research Council ;
European Union ;
BIOMED2 ;
MAPAWAMO ;
NASA ;
NSF ;
DOE ;
NIDA R01 DA09246;
NIMH P20 MH57180
Free, Non-commercial nif-0000-00324 SCR_007143 Lyngby Toolbox, Lyngby - A Toolbox for Functional Neuroimaging 2026-08-03 09:33:23 2
NSR Physiome Project
 
Resource Report
Resource Website
1+ mentions
NSR Physiome Project (RRID:SCR_007379) NSR Physiome Project portal, professional program, software application, topical portal, simulation software, data or information resource, software resource, training resource Database of physiological, pharmacological, and pathological information on humans and other organisms and integration through computational modeling. Models include everything from diagrammatic schema, suggesting relationships among elements composing a system, to fully quantitative, computational models describing the behavior of physiological systems and an organism''s response to environmental change. Each mathematical model is an internally self-consistent summary of available information, and thereby defines a working hypothesis about how a system operates. Predictions from such models are subject to test, with new results leading to new models.BR /> A Tool developed for the NSR Physiome project is JSim, an open source, free software. JSim is a Java-based simulation system for building quantitative numeric models and analyzing them with respect to experimental reference data. JSim''s primary focus is in physiology and biomedicine, however its computational engine is quite general and applicable to a wide range of scientific domains. JSim models may intermix ODEs, PDEs, implicit equations, integrals, summations, discrete events and procedural code as appropriate. JSim''s model compiler can automatically insert conversion factors for compatible physical units as well as detect and reject unit unbalanced equations. JSim also imports the SBML and CellML model archival formats. All JSim models are open source. Goals of the Physiome Project: - To develop and database observations of physiological phenomenon and interpret these in terms of mechanism (a fundamentally reductionist goal). - To integrate experimental information into quantitative descriptions of the functioning of humans and other organisms (modern integrative biology glued together via modeling). - To disseminate experimental data and integrative models for teaching and research. - To foster collaboration amongst investigators worldwide, to speed up the discovery of how biological systems work. - To determine the most effective targets (molecules or systems) for therapy, either pharmaceutic or genomic. - To provide information for the design of tissue-engineered, biocompatible implants. physiome, computational modeling, cell, organ, organism, human, model, physiological, pharmacological, pathological, model repository, sbml, cellml, biophysics, biochemistry, database, proteome, jsim simulation analysis system, data analysis tool, parameter optimization tool, integrating biological system has parent organization: University of Washington; Seattle; USA NSF BE08407;
NHLBI T15 HL88516-01;
NSF BES-0506477;
NHLBI R01HL073598;
NIBIB R01EB001973
nif-0000-00532 SCR_007379 National Simulation Resource Physiome Project 2026-08-03 09:33:27 3
PRECISE
 
Resource Report
Resource Website
50+ mentions
PRECISE (RRID:SCR_007874) PRECISE data or information resource, database THIS RESOURCE IS NO LONGER IN SERVICE. Documented on May 12,2023. Database of interactions between amino acid residues of enzyme and its ligands. Provides summary of interactions between amino acid residues of enzyme and its various ligands including substrate and transition state analogues, cofactors, inhibitors, and products., THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 16,2025. enzyme, enzyme and enzyme nomenclature databases, function, align, amino acid, analogue, atom, chain, cofactor, complex, hydrogen bond, inhibitor, interaction, ligand, product, residue, sequence, structure, substrate, transition state has parent organization: Boston University; Massachusetts; USA NSF THIS RESOURCE IS NO LONGER IN SERVICE nif-0000-21331, SCR_008230 http://precise.bu.edu/precisedb/ SCR_007874 Predicted and Consensus Interaction Sites in Enzymes 2026-08-03 09:33:44 53
OpenWetWare
 
Resource Report
Resource Website
1+ mentions
OpenWetWare (RRID:SCR_008053) OWW portal, community building portal, experimental protocol, wiki, blog, narrative resource, data or information resource OpenWetWare is an effort to promote the sharing of information, know-how, and wisdom among researchers and groups who are working in biology & biological engineering. OWW provides a place for labs, individuals, and groups to organize their own information and collaborate with others easily and efficiently. In the process, the hope is that OWW will not only lead to greater collaboration between member groups, but also provide a useful information portal to our colleagues, and ultimately the rest of the world. OWW''s approaches to achieve their goals: # Lower the technical barriers to sharing and dissemination of knowledge in biological research # Build a community of researchers in biology and biological engineering that values, practices, and innovates the open sharing of information # Integrate OpenWetWare into existing and future reward structures in research biological engineering, biological research, biology, collaboration, community, information, lab, portal, sharing, structure, material resource, media, enzyme, buffer, reporter, page, fixative, detergent, electrophoresis, agarose gel electrophoresis, protease, acid, base, rna polymerases, antibiotic, chemical, rna polymerase, dna ligase, dna polymerase, phosphatase, dye, stain, fluorescent protein has parent organization: BioBricks Foundation NSF ;
Massachusetts Institute of Technology; Massachusetts; USA
nif-0000-10393 SCR_008053 2026-08-03 09:33:51 3
Reciprocal Net
 
Resource Report
Resource Website
1+ mentions
Reciprocal Net (RRID:SCR_008238) Reciprocal Net data or information resource, database Database of crystallographic information. Its membership includes crystallographic service facilities (that analyze crystals submitted by research chemists) located at major universities. These labs analyze anywhere from a few dozen to several hundred molecular structures each year and post the data online for the public to access. A distributed database engine takes care of shuttling this data across the Internet so that every structure can be located by the search engine. There may be a delay of a year or more between the time a structure is first analyzed and the time it finally becomes available for the public to see. This is due to intellectual property issues - the intervening time allows the chemists who first discovered the structure to publish it in a trade journal. 3d molecular structure, chemistry, digital, molecular, structure, molecular structure, crystallography, chemical process is listed by: re3data.org
has parent organization: Indiana University; Indiana; USA
NSF Free, Freely available, nif-0000-21353, r3d100010767 https://doi.org/10.17616/R3T90B SCR_008238 Reciprocal Net - a distributed crystallography network for researchers students and the general public 2026-08-03 09:33:43 2
AraCyc
 
Resource Report
Resource Website
50+ mentions
AraCyc (RRID:SCR_008109) data repository, data or information resource, database, storage service resource, service resource Curated species-specific database present at the Plant Metabolic Network. It has a large number of experimentally supported enzymes and metabolic pathways, but it also houses a substantial number of computationally predicted enzymes and pathways. enzyme, gene, arabidopsis thaliana, biochemical, pathway, reaction, metabolism, metabolic pathway, data set, data analysis service, web service, FASEB list is used by: Arabidopsis Reactome
is listed by: 3DVC
has parent organization: Plant Metabolic Network
NSF PMID:12805578
PMID:15888675
The community can contribute to this resource nif-0000-20811 http://www.arabidopsis.org/biocyc/index.jsp, http://www.plantcyc.org SCR_008109 Arabidopsis enzymes and biochemical pathways database 2026-08-03 09:33:54 69
Brain Operation Database
 
Resource Report
Resource Website
Brain Operation Database (RRID:SCR_003050) BODB data or information resource, database, service resource, storage service resource THIS RESOURCE IS NO LONGER IN SERVICE. Documented on January 4, 2023. BODB offers a way to document computational models of brain function by linking each model to Brain Operating Principles (BOPs), related brain regions, Summaries of Simulation Results (SSRs)and Summaries of Experimental Data (SEDs) used either to design or to test the model. Tools are provided to search for related models and to compare their coverage of SEDs. This allows automatic benchmarking of a model against a cluster of models addressing similar BOPs or SEDs or brain regions. Tools allow display of brain imaging results against a human brain applet; a new tool will link data to a macaque brain applet. model, brain operating principle, summary of experimental data, summary of simulation results, neural networks, mirror neuron, action, vision, language, usc brain project has parent organization: University of Southern California; Los Angeles; USA
is parent organization of: Model: Hebbian Mirror Neuron System (H-MNS) (Keysers - Perrett)
NSF 0924674 THIS RESOURCE IS NO LONGER IN SERVICE nif-0000-03080 http://bodb.usc.edu SCR_003050 BODB (Brain Operation DataBase) 2026-08-03 09:31:56 0
PIRSF
 
Resource Report
Resource Website
10+ mentions
PIRSF (RRID:SCR_003352) PIRSF narrative resource, data or information resource, database, standard specification A SuperFamily classification system, with rules for functional site and protein name, to facilitate the sensible propagation and standardization of protein annotation and the systematic detection of annotation errors. The PIRSF concept is being used as a guiding principle to provide comprehensive and non-overlapping clustering of UniProtKB sequences into a hierarchical order to reflect their evolutionary relationships. The PIRSF classification system is based on whole proteins rather than on the component domains; therefore, it allows annotation of generic biochemical and specific biological functions, as well as classification of proteins without well-defined domains. There are different PIRSF classification levels. The primary level is the homeomorphic family, whose members are both homologous (evolved from a common ancestor) and homeomorphic (sharing full-length sequence similarity and a common domain architecture). At a lower level are the subfamilies which are clusters representing functional specialization and/or domain architecture variation within the family. Above the homeomorphic level there may be parent superfamilies that connect distantly related families and orphan proteins based on common domains. Because proteins can belong to more than one domain superfamily, the PIRSF structure is formally a network. The FTP site provides free download for PIRSF. protein annotation, classification, protein, superfamily, functional site, protein name, bio.tools is listed by: OMICtools
is listed by: bio.tools
is listed by: Debian
is related to: UniProtKB
has parent organization: Protein Information Resource
NHGRI U01-HG02712;
NSF DBI-0138188;
NSF ITR-0205470
PMID:19455212
PMID:14681371
Free, Freely available biotools:pirsf, nif-0000-03294, OMICS_01697 https://bio.tools/pirsf http://pir.georgetown.edu/pirsf/ SCR_003352 PIR SuperFamily, Protein Information Resource SuperFamily 2026-08-03 09:32:14 28

Can't find your Tool?

We recommend that you click next to the search bar to check some helpful tips on searches and refine your search firstly. Alternatively, please register your tool with the SciCrunch Registry by adding a little information to a web form, logging in will enable users to create a provisional RRID, but it not required to submit.

Can't find the RRID you're searching for? X
X
  1. RRID Portal Resources

    Welcome to the RRID Resources search. From here you can search through a compilation of resources used by RRID and see how data is organized within our community.

  2. Navigation

    You are currently on the Community Resources tab looking through categories and sources that RRID has compiled. You can navigate through those categories from here or change to a different tab to execute your search through. Each tab gives a different perspective on data.

  3. Logging in and Registering

    If you have an account on RRID then you can log in from here to get additional features in RRID such as Collections, Saved Searches, and managing Resources.

  4. Searching

    Here is the search term that is being executed, you can type in anything you want to search for. Some tips to help searching:

    1. Use quotes around phrases you want to match exactly
    2. You can manually AND and OR terms to change how we search between words
    3. You can add "-" to terms to make sure no results return with that term in them (ex. Cerebellum -CA1)
    4. You can add "+" to terms to require they be in the data
    5. Using autocomplete specifies which branch of our semantics you with to search and can help refine your search
  5. Collections

    If you are logged into RRID you can add data records to your collections to create custom spreadsheets across multiple sources of data.

  6. Facets

    Here are the facets that you can filter the data by.

  7. Further Questions

    If you have any further questions please check out our FAQs Page to ask questions and see our tutorials. Click this button to view this tutorial again.