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Table 1 Polymorphisms in the genes of mce1 operon.

From: Single nucleotide polymorphism in the genes of mce1 and mce4 operons of Mycobacterium tuberculosis: analysis of clinical isolates and standard reference strains

mce1operon

Gene Name

(Accession Number)

Nucleotide Change

[GenBank Accession Number]

Amino Acid Change

Frequency Distribution of polymorphism

(%)

  

Non Synonymous

Synonymous

All isolates

n = 112

DS

n = 22

DR

n = 59

SDR

n = 15

MDR TB

n = 19

yrbE1A

[Rv0167]

C14T

[GenBank:HQ901088]

Thr5Ile

NONE

(25.96)

(29.16)

(29.09)

(41.76)

(15.78)

yrbE1B

[Rv0168]

T154G

[GenBank:HQ901089]

Tyr52Asp

NONE

(0.9)

NONE

(1.72)

NONE

(5.26)

mce1A

[Rv0169]

C1075T

C1323T

[GenBank:HQ901082]

Pr0359Ser

Tyr441Tyr

(1.87)

(4)

NONE

NONE

NONE

mce1B

[Rv0170]

T536C

[GenBank:HQ901085]

Ile179Thr

NONE

(0.9)

(3.8)

NONE

NONE

NONE

mce1C

[Rv0171]

G636C

[GenBank: HQ901086]

Glu212Asp

NONE

(0.9)

(3.8)

NONE

NONE

NONE

mce1D

[Rv0172]

NONE

NONE

NONE

NONE

NONE

NONE

NONE

NONE

lprK

[Rv0173]

NONE

NONE

NONE

NONE

NONE

NONE

NONE

NONE

mce1F

[Rv0174]

G129T

[GenBank: HQ901083]

Lys43Asn

NONE

(0.9)

(4)

NONE

NONE

NONE

  1. Frequency of single nucleotide polymorphisms detected in the genes of mce1 operon. The nucleotide changes and the corresponding changes in amino acids are shown here. The frequency of SNPs was calculated from 112 clinical isolates. The data has been subdivided according to the drug susceptibility profile.
  2. The single letter nucleotide designations used are as follows: A, adenine; C, cytosine; G, guanine and T, thymidine. The three letter amino acid designations used are as follows: Thr, threonine; Ile, isoleucine; Tyr, tyrosine; Asp, aspartic acid; Pro, proline; Ser, serine; Glu, glutamic acid; Lys, lysine and Asn, asparagine.
  3. DS: drug sensitive, DR: drug resistant, SDR: single drug resistant, MDR TB: Multi drug resistant