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Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29164072
Comments: 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
Proper citation: RRID:Addgene_102262 Copy
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29164072
Comments: 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
Proper citation: RRID:Addgene_102256 Copy
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29164072
Comments: 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
Proper citation: RRID:Addgene_102257 Copy
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29164072
Comments: 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
Proper citation: RRID:Addgene_102266 Copy
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29164072
Comments: 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
Proper citation: RRID:Addgene_102267 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:33289521
Comments: 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.
Proper citation: RRID:Addgene_102799 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:33289521
Comments: 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.
Proper citation: RRID:Addgene_102803 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:33289521
Comments: 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.
Proper citation: RRID:Addgene_102802 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29765036
Comments: E. coli K12 MG1655 genotype: F- λ- ilvG- rfb-50 rph-1
Integration at lambda attB: pOSIP-KL-sulA-GFP
Integration at HK022 attB: pOSIP-KO-RBS2-dCas9
SulA-GFP acts as an SOS response reporter.
Proper citation: RRID:Addgene_115924 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29765036
Comments: 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-KO-RBS2-dCas9
mCherry quantifies dCas9 repression
Proper citation: RRID:Addgene_115926 Copy
Vector Backbone Description: Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:31980824
Comments: 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
Proper citation: RRID:Addgene_141407 Copy
Vector Backbone Description: Vector Backbone:None; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:21868676
Comments: 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.
Proper citation: RRID:Addgene_34928 Copy
Vector Backbone Description: Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:35077145
Comments: Genotype: E. coli MG1655ΔCRISPR-Cas
Method: Knockout using pKD46/pKD4
Created by: Baiyang Liu
Knockout region from MG1655 genome: 995605 to 1006007
Primer Fw: GATTATCGACTGGGATAACC
Primer Rv: CAGAAATATTCGACAAAGCG
Expected PCR size for JEC027: 1kb
Expected PCR size for MG1655: 10.4kb
Proper citation: RRID:Addgene_180310 Copy
Species: E. coli
Genetic Insert: None
Vector Backbone Description: Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:31772280
Comments: Genotype: λDE3 Δtig100 Δ(araD–araB)567 ΔlacZ4787(::rrnB-3) lacIP-4000(lacIQ) rph-1 Δ(rhaD–rhaB)568 hsdR514
KTD101(DE3) is a λDE3 derivative of the trigger factor deficient (Δtig) strain KTD101 from Puertas et al 2010 Protein Expression and Purification 74: 122–128, PMID 20600941.
Puertas et al 2010 showed that deletion of trigger factor in the parent strain KTD101 increased the level of secreted recombinantly expressed protein. This strain may also improve the level of protein expression in the periplasm and in the outer membrane. This derivative strain KTD101(DE3) now allows expression that is based on the widely-used T7 promoter.
The parent strain KTD101 was provided by François Baneyx at the University of Washington.
DE3 lysogenization is apparent from positive expression that was obtained for the BBA57 protein upon expression from the T7 promoter plasmid pBBA57-TEV-His12, as was shown in Figure S5C, lane 7, of Robertson et al, Sci Rep. 2019 Nov 26;9(1):17606. doi: 10.1038/s41598-019-53830-x.
Proper citation: RRID:Addgene_138651 Copy
Genetic Insert: none
Vector Backbone Description: Vector Backbone:none; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:29765036
Comments: 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
Proper citation: RRID:Addgene_115925 Copy
Species: Escherichia coli str. K-12 substr. MG1655
Genetic Insert: Genotype: MG1655 rph+, ilvG+, ΔlacZ, ΔrapZ, ΔglmZ, ΔglmY
Vector Backbone Description: Vector Backbone:n/a; Vector Types:This is a strain, not a plasmid; Bacterial Resistance:None
Defining Citation: PMID:36987877
Comments: Primer to check deletions:
ΔrapZ (5' check primer: GGATACCGAAGGTACTCCGG; 3' check primer: CGTAAGAGCACTTCAGCGTC); ΔglmZ (5' check primer: GTGTAGGATCAAGCTCAGG; 3' check primer: CGGACGCCTACGATTACGC); ΔglmY (5' check primer: GTCTCTTTTTAGCGACACAGTGGC; 3' check primer: GGTGTTACTCTCGTCAGACGCG)
Proper citation: RRID:Addgene_200838 Copy
Species: E. coli
Genetic Insert: ΔtnaA ΔtrpR
Vector Backbone Description: Vector Backbone:n/a; Vector Types:; Bacterial Resistance:None
Defining Citation: PMID:35594503
Comments: Primers for PCR verification:
veri-trpR-F: AGCAGCTTATAACGCCGGACCAGGG
veri-trpR-R: TGGTCCCGTGATGTCGCGTTATAC
veri-tnaA-F: CTTGTTTTAGTAAATGATGGTGCTTG
veri-tnaA-R: GATCAGTCATGATGCCACCTTTAGAG
Proper citation: RRID:Addgene_205015 Copy
Vector Backbone Description: Vector Backbone:N/A; Vector Types:; Bacterial Resistance:None
Comments: E. coli MEV15 is engineered to host diterpenoid biosynthetic pathways. Diterpenoid production is achieved by supplying the strain with plasmids encoding terpene cyclase(s) and cytochrome P450s under the control of Marionette promoters (See https://www.addgene.org/kits/marionette-sensor-collection/ and 10.1038/s41589-018-0168-3). Diterpenoid production can be induced by IPTG, vanillic acid, and other inducers controlling cytorhcome P450s. The strain has the upper MEV pathway from pMevT (addgene #17815) inserted into 4418413/4418414, the lower MEV pathway from pMBIS (addgene #17817) and Streptomyces avermitilis ggps inserted into 4105665/4105664, the designed redox enzyme array inserteed into 3801913/3801912, and the Marionette cluster from sAJM.1506 (addgene #108254) inserted into 3753777/3752159 of E. coli BL21(DE3)'s genome. The nucleotide numbers are based on NCBI accession # NZ_CP053602. The redox enzyme array consists of fprD/fdxD from Streptomyces avermitilis, fpr/fldA from E. coli, fenr/fer1 from spinach chloroplasts, abd pdr/pdx (camA/camB) from Pseudomonas putida. The Marionette cluster was transferred using phage transduction, resulting in the replacement of nucleotides between 3745758/3839292 by those in the corresponding regions from sAJM.1506 (parent strain: E. coli MG1655), as evident by whole-genome sequencing.
Proper citation: RRID:Addgene_197113 Copy
Species: n/a
Genetic Insert: This strain is a derivative of BL21(DE3) with no specific assignment of the UAG codo
Vector Backbone Description: Vector Backbone:n/a; Vector Types:This is a strain, not a plasmid; Bacterial Resistance:None
Defining Citation: PMID:31243963
Comments: Derivative of BL21(DE3) with no specific assignment of the UAG codon
- 95 endogenous TAG codons mutated to TAA
- RF1 (prfA) deleted and fabR spontaneously mutated
- serB deleted for phosphoserine genetic code expansion expression applications
Primers for verification:
- for RF1 (prfA) deletion: AAGCCTTCTATCGTTGCCAAAC, TTATTCCTGCTCGGACAACG
- for serB deletion: AGTTTTGTGCGAGCCATCTTCCACC, GTGATGGTGTTCCAGGCATGACAGG
This strain is used for expressing phosphoserine-containig proteins using genetic code expansion without buildup of prematurely truncated protein
- Recommended plasmids for expressing phosphorylated proteins in this strain are Addgene #173897 (pSer GCE machinery vector) and #174075/174076 (compatible p15a origin of replication plasmids expressing sfGFP proteins from a T7 promoter; sfGFP genes can be removed by restriction digest and replaced with protein-of-interest).
Original B95 strain: Mukai, T., Highly reproductive Escherichia coli cells with no specific assignment to the UAG codon. Sci. Rep. 5: 9699 (2015). PMID 25982672
Proper citation: RRID:Addgene_197655 Copy
Species: n/a
Genetic Insert: This strain is a derivative of BL21(DE3) with the serC gene knocked out
Vector Backbone Description: Vector Backbone:n/a; Vector Types:This is a strain, not a plasmid; Bacterial Resistance:None
Defining Citation: PMID:37122473
Comments: Strain is resistant to chloramphenicol.
Derivative of BL21(DE3) with the serC gene knocked out. This strain is used for expressing proteins containing site-specific non-hydrolyzable phosphoserine.
Primers for verification:
- for serC deletion: CCTCAACGGTTTTACTCATTGCGATG, CGGGCAGATTAATAGTGCCATCGAC
Additional reference: Rogerson et al. Efficient genetic encoding of phosphoserine and its nonhydrolyzable analog. Nat Chem Biol. 2015 Jul;11(7):496-503
Please visit https://www.biorxiv.org/content/10.1101/2021.10.22.465468v2 for bioRxiv preprint.
Proper citation: RRID:Addgene_197656 Copy
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