E. Coli Strain Information

E. coli Strains and Applicable National Institutes of Health (NIH) Guidelines

Below is a list of some commonly used strains of E. coli, and the NIH Guidelines category applicable to those strains.

If you have any questions regarding this information, or if you have questions regarding a strain not listed, please contact the Institutional Biosafety Committee Program director (ibc@vt.edu).

E. coli K-12 strains (RG1, Exempt, NIH Guideline III-F, F-8, C-II)

E. coli 58
E. coli 58-161
E. coli 5K
E. coli 679
E. coli AB284
E. coli AB311
E. coli AG1
E. coli C600
E. coli Cavalli Hfr
E. coli DH1
E. coli DH5-alpha
E. coli DH10B
E. coli DP50
E. coli EMG2
E. coli EPI100-T1R
E. coli H1443
E. coli HB101
E. coli Hfr 3000 X74
E. coli HMS 174
E. coli HST08
E. coli HT115
E. coli JC9387
E. coli JM101
E. coli JM109
E. coli JM83
E. coli K-12
E. coli KP7600
E. coli LE392
E. coli M15
E. coli MB408
E. coli MC4100
E. coli MG1655
E. coli Novablue
E. coli P678
E. coli PA309
E. coli REG-12
E. coli S17-1
E. coli SCS-110
E. coli SM10
E. coli STBL2
E. coli STBL3
E. coli SURE
E. coli TB1
E. coli TG1
E. coli TOP10
E. coli W1485
E. coli W208
E. coli W3110
E. coli W945
E. coli WA704
E. coli WG1
E. coli XL1-Blue
E. coli XL10-Gold
E. coli XLOLR
E. coli Y10
E. coli YN2980

Non-K12 E. coli strains (RG1, not exempt, NIH Guideline III-E)

E. coli 1946
E. coli 25922
E. coli B
E. coli B-3
E. coli B/R
E. coli BL21
E. coli BL23
E. coli C
E. coli C41
E. coli C43
E. coli FDA strain Seattle 1946
E. coli K5808
E. coli Mach1
E. coli Nissle 1917
E. coli One Shot
E. coli REG-811
E. coli Rosetta
E. coli TOPP
E. coli W

Pathogenic E. coli strains (not exempt, III-D NIH Guidelines)

E. coli, all strains bearing K1 antigen
E. coli enteroaggregative strain (EAEC)
E. coli enterohaemorrhagic strain (EHEC)
E. coli enteroinvasive strain (EIEC)
E. coli enteropathogenic strain (EPEC)
E. coli enterotoxigenic strain (ETEC)
E. coli O157:H7