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Table 1 MTases presenting a statistical significant association with isolates of distinct geographic origin (Chi-square test).

From: Geographic distribution of methyltransferases of Helicobacter pylori: evidence of human host population isolation and migration

MTase

Recognition sequence *

Chi-square

higher

smaller

Std.

  

(p value)

expression in isolates from

Residual

M. AseI

ATTAAT

0.031

--

Africa

2.13

M. FokI

GGATG

0.001

America

Asia

--

2.77

2.55

M. MspI

CCGG

0.036

--

--

 

M. Hpy188I

TCNGA

0.002

America

--

2.05

M. Hpy99I

CGWCG

0.025

America

--

2.29

M. HpyCH4III

CANGT

<0.001

Africa

America

--

-1.99

-2.21

M. DraI

TTTAAA

<0.001

Asia

--

5.36

M. BstUI

CGCG

0.006

Asia

--

2.81

M. FauI

CCCGC

0.004

Asia

--

-2.04

M. TaqI

TCGA

0.044

--

--

 
  1. * data from REBASE [23].