Probable conserved transmembrane protein; Required for the insertion and/or proper folding and/or complex formation of integral membrane proteins into the membrane. Involved in integration of membrane proteins that insert both dependently and independently of the Sec translocase complex, as well as at least some lipoproteins. Aids folding of multispanning membrane proteins (By similarity).

Rv3924c, (MTV028.15), len: 47 aa. rpmH, 50s ribosomal protein l34 (see citations below), equivalent to many mycobacterial 50S ribosomal protein L34 e.g. P46386|RL34_MYCLE|RPMH|ML2713 from Mycobacterium leprae (47 aa), FASTA scores: opt: 287, E(): 8.5e-17, (91.5% identity in 47 aa overlap); and Q9L7L8|RL34_MYCPA|RPMH from Mycobacterium paratuberculosis (47 aa), FASTA scores: opt: 281, E(): 2.6e-16, (89.35% identity in 47 aa overlap). Also highly similar to other ribosomal proteins e.g. P27901|RL34_STRCO|RPMH|STH24.02 from Streptomyces coelicolor (45 aa), FASTA scores: opt: 234, E(): 1.4 [...]

Rv3920c, (MTV028.11c), len: 187 aa. Conserved protein, similar to jag protein, equivalent to Q9L7M2 hypothetical 20.1 KDA protein from Mycobacterium paratuberculosis (183 aa), FASTA scores: opt: 1004, E(): 7.3e-52, (85.05% identity in 187 aa overlap); and Q50204|ML2709 hypothetical protein similar to jag protein SPOIIIJ associated protein in bacillus subtilis from Mycobacterium leprae (193 aa), FASTA scores: opt: 871, E(): 4.4e-44, (73.05% identity in 193 aa overlap). Also similar to other bacterial proteins e.g. O54595|STH24.06|jag jag-like protein from Streptomyces coelicolor (170 aa [...]

Probable transcription termination factor Rho homolog; Facilitates transcription termination by a mechanism that involves Rho binding to the nascent RNA, activation of Rho's RNA- dependent ATPase activity, and release of the mRNA from the DNA template. Shows poor RNA-dependent ATP hydrolysis and inefficient DNA- RNA unwinding activities, but exhibits robust and fast transcription termination, which suggests that the transcription termination function of M.tuberculosis Rho is not correlated with its helicase/translocase activities and that these functions may not be important for its RN [...]

50S ribosomal protein L2 RplB; One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome. Belongs to the universal ribosomal protein uL2 family.

50S ribosomal protein L4 RplD; One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.

Probable preprotein translocase SecE1; Essential subunit of the Sec protein translocation channel SecYEG. Clamps together the 2 halves of SecY. May contact the channel plug during translocation.

SERYL-tRNA synthetase SerS (serine--tRNA ligase) (SERRS) (serine translase); Catalyzes the attachment of serine to tRNA(Ser). Is also able to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L- seryl-tRNA(Sec), which will be further converted into selenocysteinyl- tRNA(Sec).

Rv2966c, (MTCY349.21), len: 188 aa. Possible methyltransferase, equivalent (but shorter 36 aa) to O69465|MLCB1243.09 hypothetical 23.0 KDA protein from Mycobacterium leprae (220 aa), FASTA scores: opt: 872, E(): 9.1e-50, (74.2% identity in 182 aa overlap). Also similar to others e.g. Q9ZBR2|SC7A1.11 putative methylase from Streptomyces coelicolor (195 aa), FASTA scores: opt: 510,E(): 3.7e-26, (47.5% identity in 179 aa overlap); Q9F842 hypothetical methyltransferase (fragment) from Mycobacterium smegmatis (80 aa), FASTA scores: opt: 386,E(): 2.5e-18, (75.0% identity in 80 aa overlap); P [...]