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Table 2 List of additional genes under positive selection across the six Escherichia coli genomes using the M1a-M2a test

From: PSP: rapid identification of orthologous coding genes under positive selection across multiple closely related prokaryotic genomes

Gene

P-valuea

KOb

COG

Pathway

Enrichmentc

Function

alaS

0.000

K01872

J

ko00970

0.3094

Alanyl-tRNA synthetase

cobU

0.046

K02231

H

ko00860

0.6536

Bifunctional cobinamide kinase and cobinamide phosphate guanylyltransferase

dacC

0.024

K07258

M

ko00550

0.6806

D-alanyl-D-alanine carboxypeptidase

eutA

0.000

K04019

E

ko00564

0.6025

Reactivating factor for ethanolamine ammonia lyase

fliC

0.000

K02406

N

ko02020

0.1939

Flagellar filament structural protein

hchA

0.000

K05523

R

-

-

Hsp31 molecular chaperone

nfsA

0.000

K07734

K

-

-

Nitroreductase A

pgl

0.000

K07404

G

ko00030

0.3210

6-phosphogluconolactonase

yadB

0.000

K01894

J

-

-

Glutamyl-Q tRNA synthetase

yebN

0.000

-

S

-

-

Conserved inner membrane protein

yddV

0.000

K13069

T

-

-

Predicted diguanylate cyclase

yfdF

0.041

-

-

-

-

Hypothetical protein

ygfI

0.013

-

K

-

-

Putative DNA-binding transcriptional regulator

ygeR

0.000

K12943

M

-

-

Lipoprotein

  1. a The P-value shown is the smallest one among different fragments if there is a strong signal of recombination.
  2. b “-” indicates that no functional term was assigned.
  3. c The “enrichment” represents P-value of hypergeometric distribution for each KEGG pathway.