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Plasmid Name Proper Citation Insert Name Organism Bacterial Resistance Defining Citation Comments Vector Backbone Description Relevant Mutation Authority Record Last Update Mentions Count
RF17
 
Resource Report
Resource Website
RRID:Addgene_102801 none None PMID:33289521 This work is supported in part by JSPS-NSF International Collaborations in Chemistry (ICC) research grant. Genotype= aspC tyrB ilvE Precursor strain = RF4 Modified from the parent Escherichia coli BL21(DE3) strain Selective amino acid labeling (and/or requirement) = Asp, Tyr, Phe, Ile, Leu Please note- RF17 strain has knockouts in aspC, tyrB, and ilvE genes and requires the presence of L-Asp, L-Tyr, L-Phe, L-Ile plus L-Leu for (slow) growth in M63 minimal medium. Please visit the following links for additional details on this strain and selective amino acid labeling- http://www2.nms.ac.jp/fesworld/EcoliStrains.html http://www2.nms.ac.jp/fesworld/EcoliStrainsSuppl.html Note that these strains are NOT competent cells and one needs to make them competent before use. Supplemental documents contain a list of PCR primers used for verification of each knocked-out gene as well as an image showing PCR results for this strain. Supporting References: Lin, M. T., Fukazawa, R., Miyajima-Nakano, Y., Matsushita, S., Choi, S. K., Iwasaki, T., and Gennis, R. B. (2015) Escherichia coliauxotroph host strains for amino acid-selective isotope labeling of recombinant proteins. Methods Enzymol. (Isotope Labeling of Biomolecules - Labeling Methods), 565, 45-66. Iwasaki, T., Fukazawa, R., Miyajima-Nakano, Y., Baldansuren, A., Matsushita, S., Lin, M. T., Gennis, R. B., Hasegawa, K., Kumasaka, T., and Dikanov, S. A. (2012) Dissection of hydrogen bond interaction network around an iron-sulfur cluster by site-specific isotope labeling of hyperthermophilic archaeal Rieske-type ferredoxin. J. Am. Chem. Soc. 134, 19731-19738. Lin, M. T., Sperling, L. J., Frericks Schmidt, H. L., Tang, M., Samoilova, R. I., Kumasaka, T., Iwasaki, T., Dikanov, S. A., Rienstra, C. M., and Gennis, R. B. (2011) A rapid and robust method for selective isotope labeling of proteins. Methods 55, 370-378. Vector Backbone:none; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:18:30 0
LC-E75
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_115925 none None PMID:29765036 E. coli K12 MG1655 genotype: F- λ- ilvG- rfb-50 rph-1 Integration at lambda attB: pOSIP-KL-mCherry Integration at primary 186 attB: pOSIP-CO-RBS-librarydCas9 (2-3)* *Number in parentheses refers to the selected colony number. mCherry quantifies dCas9 repression Vector Backbone:none; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:20:27 3
FD1
 
Resource Report
Resource Website
RRID:Addgene_125258 single chromosomal copy of yhhX target sequence upstream from mcherry reporter gene under control of a constitutive promoter None PMID:31377338 Genotype: The expression of mcherry can be visualized or measured with a spectrophotometer. The yhhX target sequence followed by a mcherry reporter gene carried by an integrative vector based on pOSIP-KL was integrated at the lambda attB site in the chromosome of E. coli MG1655 and the backbone was flipped out using the pE-FLP (AmpR, #45978, Addgene) plasmid. This strain can be used to optimize dCas9 expression levels Vector Backbone:none; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:22:11 0
BL21 ΔrecB
 
Resource Report
Resource Website
RRID:Addgene_176580 Strain None PMID:35034449 Please visit https://www.biorxiv.org/content/10.1101/2021.09.07.459228v1 for bioRxiv preprint. Primers for recB deletion verification: Foward - tattttccagtcgtgaaagc Reverse - ttgctgatttcttccatcag Vector Backbone:Strain; Vector Types:; Bacterial Resistance:None recB genomic deletion Addgene 2026-09-26 02:28:59 0
Top10∆serB
 
Resource Report
Resource Website
RRID:Addgene_34928 None PMID:21868676 To prevent possible enzymatic dephosphorylation of O-phospho-L-serine (Sep) in vivo, the gene encoding phosphoserine phosphatase (serB), which catalyzes the last step in serine biosynthesis, was deleted from Escherichia coli strain Top10. Markerless gene deletions were carried out using a λ-red and FLP recombinase-based gene knockout strategy. Vector Backbone:None; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:31:58 0
EcAR7
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_52055 None None PMID:22982858 We recommend growth of the EcAR7 strain at 30 °C in LB supplemented with 0.08% glucose. The EcAR7 strains normally take 1.5-­‐2 days to grow at 30°C, after transformation or streaking the strain on an agar plate (with the appropriate antibiotics). See supplemental information from referenced article for protocol on creating EcAR7 from EcNR2. Vector Backbone:None; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:29 5
Oplac2 (37)-KI
 
Resource Report
Resource Website
RRID:Addgene_52702 Oplac2 (37)-KI strain None PMID:22605776 To test whether the mRNA secondary structure of our codon redesigned sequences affected expression, we substituted the first 37 nucleotides of KIlac with those of OpLac2. Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
delta-YA
 
Resource Report
Resource Website
RRID:Addgene_52708 ΔYA strain None PMID:22605776 lacY and lacA deletion Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
delta-ZA
 
Resource Report
Resource Website
RRID:Addgene_52707 ΔZA strain None PMID:22605776 lacZ and lacA deletion Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
W999L
 
Resource Report
Resource Website
RRID:Addgene_52713 W999L strain None PMID:22605776 Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
E537Q
 
Resource Report
Resource Website
RRID:Addgene_52714 E537Q strain None PMID:22605776 Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
G794A
 
Resource Report
Resource Website
RRID:Addgene_52711 G794A strain None PMID:22605776 Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
W999F
 
Resource Report
Resource Website
RRID:Addgene_52712 W999F strain None PMID:22605776 Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
delta-ZYA
 
Resource Report
Resource Website
RRID:Addgene_52695 ΔZYA strain None PMID:22605776 MG1655 was transformed with pKD46 (carrying phage lambda Red recombinase) and a PCR fragment encoding a kanamycin resistance gene with flanking nucleotide sequences homologous to those flanking the lac operon. Upon recombination and selection for resistant strains, the kanamycin-resistant gene was eliminated following transformation with pCP20 (encoding the FLP recombinase), which is subsequently cured by growth at 30°C. The deletion in our ΔZYA strain started 20bp upstream of lacI and ran 40bp downstream of lacA. Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
OpLac1-delta-6
 
Resource Report
Resource Website
RRID:Addgene_52698 OpLac1-Δ6 strain None PMID:22605776 Oplac1Δ6 were erroneously synthesized missing the first 6 nucleotides of Oplac1. These deletions correspond to the first 2 N-terminal amino acid residues (Methionine and Threonine), and instead begin at the Methionine at position 3. Vector Backbone:na; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
HL 1285
 
Resource Report
Resource Website
RRID:Addgene_52942 none E.coli None PMID:25087841 Vector Backbone:none; Vector Types:Synthetic Biology; Bacterial Resistance:None Addgene 2026-09-26 02:34:36 0
HL3721
 
Resource Report
Resource Website
RRID:Addgene_52950 none E.coli None PMID:23878244 Vector Backbone:none; Vector Types:Synthetic Biology; Bacterial Resistance:None Addgene 2026-09-26 02:34:36 0
HL 716
 
Resource Report
Resource Website
RRID:Addgene_60368 See comments None PMID:21189298 MG1655 + lacIq integrated at intS Vector Backbone:N/A; Vector Types:Synthetic Biology; Bacterial Resistance:None Addgene 2026-09-26 02:35:45 0
HL 770
 
Resource Report
Resource Website
RRID:Addgene_60369 See comments None PMID:21189298 MG1655 + lacIq intergrated at intS + Δ hfq Vector Backbone:N/A; Vector Types:Synthetic Biology; Bacterial Resistance:None Addgene 2026-09-26 02:35:45 0
HL 1188
 
Resource Report
Resource Website
RRID:Addgene_60373 See comments None PMID:21189298 MG1655 + lacIq intergrated at intS + Δ hfq + Δ dsrA Vector Backbone:N/A; Vector Types:Synthetic Biology; Bacterial Resistance:None Addgene 2026-09-26 02:35:45 0

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