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. 2024 Apr 10;92(9):e00482-23. doi: 10.1128/iai.00482-23

TABLE 2.

Genes contributing to K. pneumoniae GI colonizationb,c

Gene Function/pathway Strain Technique Reference
aceE Pyruvate dehydrogenase E1 component CRE-166, KPN46, Z4160 INseq (107)
ackAa Acetate kinase MH258 INseq (195)
acrA Multidrug efflux pump subunit CRE-166, KPN46, Z4160 INseq (107)
adhE Aldehyde-alcohol dehydrogenase CRE-166, KPN46, Z4160 INseq (107)
arcBa Aerobic respiration control sensor protein MH258, CRE-166, KPN46, Z4160, C3091 INseq, STM (107, 193, 195)
bamBa Outer membrane beta-barrel assembly protein MH258 INseq (195)
bamE Outer membrane beta-barrel assembly protein MH258 INseq (195)
bglY Beta-galactosidase CRE-166, KPN46, Z4160 INseq (107)
carA Carbamoyl phosphate synthase small subunit KPN46, Z4160 INseq (107)
carB Carbamoyl phosphate synthase large subunit CRE-166, Z4160 INseq (107)
csrDa Putative lipoprotein MH258 INseq (195)
cvpA Colicin V production protein CRE-166, KPN46, Z4160 INseq (107)
cyaAa Adenylate cyclase MH258 INseq (195)
cydA Cytochrome bd-I ubiquinol oxidase subunit 1 CRE-166, KPN46, Z4160 INseq (107)
cyoA Cytochrome O ubiquinol oxidase subunit II MH258 INseq (195)
cyoB Cytochrome O ubiquinol oxidase subunit I MH258 INseq (195)
fnr Fumarate and nitrate reduction regulatory protein CRE-166, KPN46, Z4160 INseq (107)
focA Formate transporter CRE-166, KPN46, Z4160 INseq (107)
gatRa Galactitol utilization operon repressor MH258 INseq (195)
glgP Alpha-glucan phosphorylase LM21 STM (192)
glnA Glutamine synthetase CRE-166, KPN46, Z4160 INseq (107)
gltB Glutamate synthase (NADPH) large chain MH258 INseq (195)
gshAa Glutamate-cysteine ligase MH258 INseq (195)
gshBa Glutathione synthetase MH258 INseq (195)
gvR Glycine metabolism regulator LM21 STM (192)
hemN Oxygen-independent coproporphyringogen III oxidase MH258 INseq (195)
hrcU Harpin type III secretion system LM21 STM (192)
hscAa Chaperone protein MH258 INseq (195)
hscBa Chaperone protein MH258 INseq (195)
hupA DNA folding C3091 STM (193)
lacY Lactose permease MH258 INseq (195)
miaA tRNA dimethylallyltransferase CRE-166, KPN46, Z4160 INseq (107)
mtlD Mannitol-1-phosphate 5-dehydrogenase CRE-166, KPN46, Z4160 INseq (107)
ntrC Nitrogen metabolism regulator LM21 STM (192)
nuoM NADH-ubiquinone oxidoreductase chain M MH258 INseq (195)
ompA Outer membrane protein C3091 STM (193)
ompCa Outer membrane porin C MH258, CRE-166, KPN46, Z4160 INseq (107, 195)
pal Peptidoglycan-associated lipoprotein CRE-166, KPN46, Z4160 INseq (107)
pflA Pyruvate formate-lyase 1-activating enzyme CRE-166, KPN46, Z4160 INseq (107)
pflB Formate acetyltransferase 1 CRE-166, KPN46, Z4160 INseq (107)
pgi Glucose-6-phosphate isomerase CRE-166, KPN46, Z4160 INseq (107)
pheC Cyclohexadienyl dehydratase LM21 STM (192)
plsX Fatty acid and phospholipid synthesis C3091 STM (193)
ppx/gppA Guanosine-5′-triphosphate, 3′-diphosphate pyrophosphatase MH258 INseq (195)
Ptaa BioD-like N-terminal domain/phosphate acetyltransferase MH258 INseq (195)
ptsIa Phosphoenolpyruvate-protein phosphotransferase MH258, CRE-166, KPN46, Z4160 INseq (107, 195)
purC Phosphoribosylaminoimidazole-succinocarboxamide synthase CRE-166, KPN46, Z4160 INseq (107)
purH Bifunctional purine biosynthesis protein CRE-166, KPN46, Z4160 INseq (107)
pyg Glycogen phosphorylase MH258 INseq (195)
pykF Pyruvate kinase I CRE-166, KPN46, Z4160 INseq (107)
rimO Ribosomal protein S12p Asp88 methylthiotransferase MH258 INseq (195)
setA Sugar efflux transporter A CRE-166, KPN46, Z4160 INseq (107)
surA Folding of outer membrane proteins C3091 STM (193)
tamA Outer membrane component of TAM transport system MH258 INseq (195)
tamB Inner membrane component of TAM transport system MH258 INseq (195)
tatA Sec-independent protein translocase protein CRE-166, KPN46, Z4160 INseq (107)
tatC Sec-independent protein translocase protein CRE-166, KPN46, Z4160 INseq (107)
tolA Tol-Pal system protein CRE-166, KPN46, Z4160 INseq (107)
tufA Protein synthesis—elongation factor C3091 STM (193)
typAa GTP-binding protein MH258 INseq (195)
uvrA Excinuclease ABC subunit A MH258 INseq (195)
waaE LPS core synthesis C3091 STM (193)
waaL LPS core synthesis C3091 STM (193)
wbbO O-antigen synthesis C3091 STM (193)
xylA Xylose isomerase MH258 INseq (195)
yeiE HTH-type transcriptional activator CRE-166, KPN46, Z4160 INseq (107)
ygjA DedA family inner membrane protein MH258 INseq (195)
ygjD O-sialoglycoprotein endo-peptidase LM21 STM (192)
a

Denotes a gene that was also found to significantly impact growth under in vitro conditions.

b

Summary of genes identified in previous Tn-seq and STM screens as contributing to K. pneumoniae GI colonization.

c

CRE-166: carbapenem-resistant lung isolate, ST258. KPN46: non-epidemic, antibiotic susceptible blood isolates, ST433. Z4160: ESBL-producing blood isolates, ST45. LM21: cutaneous wound isolates, K35. C3091: streptomycin-resistant UTI isolates, K16. MH258: MDR blood isolates, ST258.