Table 2 In silico comparison of physico-chemical properties of original PncA molecule with that of variant one observed only in lineage 3.

From: Analysis of mutations in pncA reveals non-overlapping patterns among various lineages of Mycobacterium tuberculosis

Protein

pncA (native)

pncA (L3 lineage)

No. of amino acids

186

305

Molecular weight

19604.64

32931.31

Theoretical pI

4.43

6.25

No. of negatively charged residues (Asp + Glu)

27

30

No. of positively charged residues (Arg + Lys)

10

26

Instability index

10.35

29.97

Aliphatic index

83.92

83.51

Grand average of hydropathicity (GRAVY)

0.002

0.055