Conserved hypothetical protein; Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine. Is involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, together with TsaD and TsaB. TsaE seems to play an indirect role in the t(6)A biosynthesis pathway, possibly in regulating the core enzymatic function of TsaD (By similarity).

Probable UDP-N-acetylmuramoylalanyl-D-glutamyl-2, 6-diaminopimelate-D-alanyl-D-alanyl ligase MurF; Involved in cell wall formation. Catalyzes the final step in the synthesis of UDP-N-acetylmuramoyl-pentapeptide, the precursor of murein.

Secreted L-alanine dehydrogenase Ald (40 kDa antigen) (TB43); Catalyzes the reversible reductive amination of pyruvate to L-alanine. However, since the physiological environment of M.tuberculosis has a neutral pH, it can be assumed that the enzyme catalyzes exclusively the formation of L-alanine. May play a role in cell wall synthesis as L-alanine is an important constituent of the peptidoglycan layer; Belongs to the AlaDH/PNT family.

Rv3421c, (MTCY78.08), len: 211 aa. Conserved hypothetical protein, equivalent to Q49857|YY21_MYCLE|ML0378|B229_C1_170 hypothetical 38.0 KDA protein from Mycobacterium leprae (359 aa), FASTA scores: opt: 1000, E(): 1.8e-50, (75.6% identity in 205 aa overlap). Also similar to other hypothetical bacterial proteins e.g. O86791|SC6G4.28 from Streptomyces coelicolor (217 aa), FASTA scores: opt: 453, E(): 3.3e-19, (48.1% identity in 212 aa overlap); Q9AC10|CC0059 (glycoprotease family protein) from Caulobacter crescentus (211 aa), FASTA scores: opt: 248, E(): 2e-07, (34.3% identity in 210 aa [...]

N-alpha-acetyltransferase RimI; N-alpha-acetyltransferase that specifically mediates the acetylation of N-terminal residues. Able to mediate acetylation of a wide variety of N-terminal residues, with preference for hydrophobic N- termini. Acetylates GroS/GroES and GroEL1. Able to acetylate the ribosomal protein S18, but it is unclear whether it acetylates its N- terminal alanine residue; Belongs to the acetyltransferase family. RimI subfamily.

Probable O-sialoglycoprotein endopeptidase Gcp (glycoprotease); Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine. Is involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, together with TsaE and TsaB. TsaD likely plays a direct catalytic role in this reaction.

Rv0337c, (MTCY279.04c), len: 429 aa. Probable aspC,aspartate aminotransferase (transaminase A), equivalent to CAC32019.1|AL583925 probable aspartate aminotransferase from Mycobacterium leprae (437 aa). Also highly similar to many e.g. Q48143|U32823 aspartate aminotransferase (404 aa), FASTA scores: opt: 1646, E(): 0, (57.2% identity in 404 aa overlap). Also some similarity to Rv3565|MTCY06G11.12 from Mycobacterium tuberculosis FASTA score: (27.2% identity in 383 aa overlap). Belongs to class-I of pyridoxal-phosphate-dependent aminotransferases. Cofactor: pyridoxal phosphate.

Probable UDP-N-acetylmuramoylalanine-D-glutamate ligase MurD; Cell wall formation. Catalyzes the addition of glutamate to the nucleotide precursor UDP-N-acetylmuramoyl-L-alanine (UMA). Belongs to the MurCDEF family.

Probable glutamate racemase MurI; Provides the (R)-glutamate required for cell wall biosynthesis.