Journal
MOLECULAR AND CELLULAR BIOCHEMISTRY
Volume 369, Issue 1-2, Pages 67-74Publisher
SPRINGER
DOI: 10.1007/s11010-012-1369-9
Keywords
Kinase; Mycobacterium; PknK; Rv3080c
Categories
Funding
- Council of Scientific and Industrial Research, New Delhi [HCP0001K]
- ICMR
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Serine/threonine protein kinases (STPKs) are predominantly involved in growth, development, division, differentiation, and in regulating immune responses in mycobacteria. A wide variety of functions of mycobacterial STPKs persuade mycobacterial growth and further its survival in the hosts. The polymorphic studies have shown that a full length gene of Rv3080c (pknK) is present in the slow growing mycobacteria. The wild type Mycobacterium smegmatis containing only vector (M. smegmatis) and M. smegmatis containing Rv3080c (pknK) cloned in pMV261 vector (M. smegmatis::K) were cultured in different growth media. The studies have shown that M. smegmatis did not differ in the growth and in survival while a substantial reduction in the growth (four-ten-folds) and a significant delay in the colony formation were observed in M. smegmatis::K. In order to look for the stage specific and modulated expression of PknK, the study was comprehended to quantitate pknK transcripts at different phases of cultures. The mycobacterium, containing high copy number of pknK specific RNA was unable to multiply. The study thus highlights that Rv3080c is largely accountable for changing the fate of avirulent mycobacteria and hence the protein can be utilized as an important molecule to target pathogenesis.
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