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Plasmid Name Proper Citation Insert Name Organism Bacterial Resistance Defining Citation Comments Vector Backbone Description Relevant Mutation Record Last Update Mentions Count
BLIM cells
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_35609 none None PMID:10610690 To be used with the following plasmids from the Matthews lab: pTARA (www.addgene.org/31491), pLS1 (www.addgene.org/31490), and (www.addgene.org/31492) pLS1/-11 Vector Backbone:NA; Vector Types:; Bacterial Resistance:None 2026-08-15 01:14:02 1
MG1655 ΔendA ΔrecA
 
Resource Report
Resource Website
RRID:Addgene_37853 None PMID:20643967 Vector Backbone:N/A; Vector Types:E. coli bacterial strain; Bacterial Resistance:None 2026-08-15 01:14:17 0
MG1655 ΔendA ΔrecA (DE3)
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_37854 None PMID:21110891 Vector Backbone:N/A; Vector Types:E. coli bacterial strain; Bacterial Resistance:None 2026-08-15 01:14:17 8
JM109
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_49761 Relevant genotype: recA1, endA1, gyrA96, thi, hsdR17, supE44, relA1, λ-, Δ(lac-proAB), [F' traD36, proAB, lacIqZΔM15] None PMID:2985470 Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None 2026-08-15 01:16:02 4
JM107
 
Resource Report
Resource Website
RRID:Addgene_49759 Relevant genotype: endA1, gyrA96, thi, hsdR17, supE44, relA1, λ-, Δ(lac-proAB), [F' traD36, proAB, lacIqZΔM15] E.coli None PMID:2985470 Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None 2026-08-15 01:16:03 0
JM106
 
Resource Report
Resource Website
RRID:Addgene_49757 Relevant genotype: endA1, gyrA96, thi, hsdR17, supE44, relA1, λ-, Δ(lac-proAB) E.coli None PMID:2985470 Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None 2026-08-15 01:16:02 0
BL21ΔBC
 
Resource Report
Resource Website
RRID:Addgene_102263 None PMID:29164072 Genotype = ΔlamB ΔompC Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:23 0
BL21ΔCF
 
Resource Report
Resource Website
RRID:Addgene_102265 None PMID:29164072 Genotype = ΔompC ΔompF Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:23 0
BL21ΔAF
 
Resource Report
Resource Website
RRID:Addgene_102262 None PMID:29164072 Genotype = ΔompA ΔompF Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:22 0
BL21ΔA
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_102256 None PMID:29164072 Genotype = ΔompA Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:22 1
BL21ΔB
 
Resource Report
Resource Website
RRID:Addgene_102257 None PMID:29164072 Genotype = ΔlamB Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:23 0
BL21ΔABC
 
Resource Report
Resource Website
RRID:Addgene_102266 None PMID:29164072 Genotype = ΔompA ΔlamB ΔompC Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:23 0
BL21ΔABF
 
Resource Report
Resource Website
RRID:Addgene_102267 None PMID:29164072 Genotype = ΔompA ΔlamB ΔompF Precursor strain = BL21Gold(DE3) [genotype F- ompT hsdS(rB– mB– ) dcm+ Tetr gal λ(DE3) endA Hte] Supplemental document contains a list of genotypes and PCR primers used for verification of each knocked-out gene Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:00:23 0
RF15
 
Resource Report
Resource Website
RRID:Addgene_102799 none None PMID:33289521 This work is supported in part by JSPS-NSF International Collaborations in Chemistry (ICC) research grant. Genotype= aspC tyrB trpA trpB glyA serB Precursor strain = RF14 Modified from the parent Escherichia coli BL21(DE3) strain Selective amino acid labeling (and/or requirement) = Asp, Tyr, Trp, (Phe), Gly, Ser+++++ +++++ RF15 has knockouts in aspC, tyrB, trpA, trpB, glyA and serB genes and requires the presence of L-Asp, L-Tyr, L-Trp, L-Gly plus L-Ser for growth in M63 minimal medium, but it does NOT grow in the presence of L-Asp, L-Tyr, L-Trp, L-Gly, L-Ser plus L-Cys (either in the presence or absence of L-Ala) (i.e., L-Cys inhibits the growth of RF15) 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 2026-08-15 01:00:26 0
RF21
 
Resource Report
Resource Website
RRID:Addgene_102803 none None PMID:33289521 This work is supported in part by JSPS-NSF International Collaborations in Chemistry (ICC) research grant. Genotype= aspC tyrB ilvE avtA yfbQ(alaA) yfdZ(alaC) Precursor strain = RF18 Modified from the parent Escherichia coli BL21(DE3) strain Selective amino acid labeling (and/or requirement) = Asp, Tyr, Phe, Ile, Leu, Val#### #### RF21 has knockouts in the four general transaminase genes of E. coli (aspC, tyrB, ilvE, and avtA) and is found to require the presence of L-Asp, L-Tyr, L-Phe, L-Ile, L-Leu plus L-Val for slow growth in M63 minimal medium. Although RF21 strain has further knockouts in yfbQ (alaA) and yfdZ (alaC) genes, it is NOT an L-Ala auxotroph, either (requiring the presence of L-Asp, L-Tyr, L-Phe, L-Ile, L-Leu plus L-Val for slow growth in M63 minimal medium, like RF18). 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 2026-08-15 01:00:26 0
RF18
 
Resource Report
Resource Website
RRID:Addgene_102802 none None PMID:33289521 This work is supported in part by JSPS-NSF International Collaborations in Chemistry (ICC) research grant. Genotype= aspC tyrB ilvE avtA Precursor strain = RF17 Modified from the parent Escherichia coli BL21(DE3) strain Selective amino acid labeling (and/or requirement) = Asp, Tyr, Phe, Ile, Leu, Val#### ####RF18 has knockouts in the four general transaminase genes of E. coli (aspC, tyrB, ilvE, and avtA) and is found to require the presence of L-Asp, L-Tyr, L-Phe, L-Ile, L-Leu plus L-Val 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 2026-08-15 01:00:26 0
BL21 ΔrecBCD
 
Resource Report
Resource Website
RRID:Addgene_176581 This is a strain. None PMID:35034449 Please visit https://www.biorxiv.org/content/10.1101/2021.09.07.459228v1 for bioRxiv preprint. Primers for recBCD deletion verification: Foward - ttgatttactgcccgagagc Reverse - gtcaaccgaatgcagacatc Vector Backbone:Strain; Vector Types:; Bacterial Resistance:None recBCD genomic deletion 2026-08-15 01:11:00 0
FR-E01
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_118727 none None PMID:30403660 E. coli K12 MG1655 genotype: F- λ- ilvG- rfb-50 rph-1 Integration at HK022 attB: pOSIP-KH-RBS2-dCas9 Vector Backbone:none; Vector Types:; Bacterial Resistance:None 2026-08-15 01:03:06 1
39R861+
 
Resource Report
Resource Website
RRID:Addgene_119737 None PMID:30738800 Strain can be grown on LB without antibiotics. Resistant to: ampicillin, chloramphenicol, florfenicol, gentamicin, kanamycin, nalidixic acid, streptomycin, spectinomycin, sulphonamides, tobramycin, tetracycline, trimethoprim Please note that plasmids are stable in the absence of antibiotic selection. 39R861+ is resistant to nalidixic acid due to a chromosomal mutation. The remaining resistance determinants are plasmid-borne. 39R861+ contains six plasmids, outlined in the supplemental files. Vector Backbone:See supplemental files for plasmid details; Vector Types:; Bacterial Resistance:None 2026-08-15 01:03:15 0
JS200 strain
 
Resource Report
Resource Website
RRID:Addgene_11794 JS200 None PMID:12909725 For use with pEP PolI (addgene #11722) and pWT PolI (addgene #11721). This strain contains a temp sens mutation in PolI. Backbone Size:0; Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None 2026-08-15 01:02:59 0

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