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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
39R861+
 
Resource Report
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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 Addgene 2026-09-26 02:21:08 0
IF189
 
Resource Report
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RRID:Addgene_134836 lysogen of a temperature-inducible bacteriophage lambda None PMID:28522818 Genotype is [λ+ Lac- galK2 IN(rrnD-rrnE)1 rph-1], a derivative of strain W3102 Phenotypic assay: Grow at 30°C, but restricted at 42°C due to the induction of phage particles and cell lysis. Vector Backbone:none; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:23:43 0
E. coli ER1821ΔlacI
 
Resource Report
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RRID:Addgene_141407 None PMID:31980824 λ- F- glnX44 e14- (McrA-) rfbD1 endA1 thi-1 Δ(yjiT-opgB)114::IS10 (EcoKI R- M- McrBC- Mrr-) + rpoS393(am) creC510 lrhA::IS3 ydeN::IS10 ΔlacI Verification of lacI deletion: PCR reaction on genomic DNA using AK362 and AK365 primers produces a 1936 bp fragment AK 362 5’-CAATACCAATCGCACGCGG AK 365 5’-CGAGACGTCACGGAAAATGCC Phenotype: Constitutive β-galactosidase synthesis This strain was derived from the precursor strain, E. coli ER1821, which is described in Jobling et al. (2016) Complete Genome Sequence of Escherichia coli ER1821R, a Laboratory K-12 Derivative Engineered To Be Deficient in All Methylcytosine and Methyladenine Restriction Systems. Genome Announc 4(4):e00763-16. https://www.ncbi.nlm.nih.gov/pubmed/27516504 Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:24:39 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 Addgene 2026-09-26 02:28:59 0
BL21∆serB
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_34929 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 BL21. 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 5
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 Addgene 2026-09-26 02:32:05 1
MG1655 ΔendA ΔrecA
 
Resource Report
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RRID:Addgene_37853 None PMID:20643967 Vector Backbone:N/A; Vector Types:E. coli bacterial strain; Bacterial Resistance:None Addgene 2026-09-26 02:32:23 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 Addgene 2026-09-26 02:32:23 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 Addgene 2026-09-26 02:34:10 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 Addgene 2026-09-26 02:34:10 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 Addgene 2026-09-26 02:34:10 0
JM101
 
Resource Report
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RRID:Addgene_50349 Relevant genotype: supE, thi, Δ(lac-proAB), [F' traD36, proAB, lacIqZΔM15] E. coli None Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:14 0
JM83
 
Resource Report
Resource Website
RRID:Addgene_50348 Relevant genotype: ara, Δ(lac-proAB), rspL(+strA), ϕ80, lacZΔM15 E. coli None Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:14 0
KI (37)-Oplac2
 
Resource Report
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RRID:Addgene_52704 KI (37)-Oplac2 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 Oplac2 with those of KIlac, producing and KI(37)-Oplac2. Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
degtag
 
Resource Report
Resource Website
RRID:Addgene_52705 degtag strain None PMID:22605776 To generate the degtag strain, we introduced the ssrA tag to the C-terminus of LacZ, thus targeting the protein for degradation by the ClpXP and ClpAP proteases. Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
KI (37)-Oplac1
 
Resource Report
Resource Website
RRID:Addgene_52703 KI (37)-Oplac1 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 OpLac1 with those of KIlac. Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
OpLac2-delta-6
 
Resource Report
Resource Website
RRID:Addgene_52700 OpLac2-Δ6 strain None PMID:22605776 Oplac2Δ6 was erroneously synthesized missing the first 6 nucleotides of Oplac2. 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
Oplac1 (37)-KI
 
Resource Report
Resource Website
RRID:Addgene_52701 Oplac1 (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 OpLac1. Vector Backbone:na; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
S56L
 
Resource Report
Resource Website
RRID:Addgene_52709 S56L strain None PMID:22605776 Impaired LacY function Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 0
delta-Z
 
Resource Report
Resource Website
1+ mentions
RRID:Addgene_52706 ΔZ strain None PMID:22605776 lacZ deletion Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None Addgene 2026-09-26 02:34:35 1

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