TB Genome Annotation Portal

Rv0781 (ptrBa)

• Current annotations:
  • TBCAP: (community-based annotations - see table at bottom of page)
  • TBDB: oligopeptidase B
  • REFSEQ: oligopeptidase B
  • PATRIC: Protease II (EC 3.4.21.83)
  • TUBERCULIST: Probable protease II PtrBa [first part] (oligopeptidase B)
  • NCBI: Probable protease II PtrBa [first part] (oligopeptidase B)
  • updated information (H37Rv4):
    • gene name: ptrBa
    • function:
    • reference:
• Type: Not Target
• Start: 874233
• End: 874943
• Operon:


• Trans-membrane region:
  
• Role: II.B.3 - Proteins, peptides and glycopeptides
• GO terms:
  • GO:0070008 - serine-type exopeptidase activity (Uniprot)
  • GO:0040007 - growth (Uniprot)
  • GO:0008233 - peptidase activity (Uniprot)
  • GO:0006508 - proteolysis (Uniprot)
  • GO:0004252 - serine-type endopeptidase activity (Uniprot)
• Reaction(s) (based on iSM810 metabolic model):
• Gene Expression Profile (Transcriptional Responses to Drugs; Boshoff et al, 2004)
• Gene Modules extracted from cluster analysis of 249 transcriptomic datasets using ICA
• Orthologs among selected mycobacteria
• Protein structure:
• Search for Homologs in PDB
• Top 10 Homologs in PDB (as of Nov 2020): (none with >35% aa id)
• Links to additional information on ptrBa:
  • TBDB (updated)
  • Phyre2 structure prediction, model: final.casp.pdb (from Mao et al, 2013)
  • UniProt
  • AlphaFold model
  • Vulnerability = 0.954 (from Jeremy Rock's lab)
  • KEGG - nucleotide and amino acid sequences of gene
  • Mycobrowser
  • PATRIC
  • BioCyc
  • Systems Biology

Amino Acid Sequence

MMHRTALPSPPVAKRVQTRREHHGDVFVDPYEWLRDKDSPEVIAYLEAENDYTERTTAHLEPLRQKIFHEIKARTKETDLSVPTRRGNWWYYARTFEGKQ
YGVHCRCPVTDPDDWNPPEFDERTEIPGEQLLLDENVEADGHDFFALGAASVSLDDNLLAYSVDVVGDERYTLRFKDLRTGEQYPDEIAGIGAGVTWAAD
NHCLLHHRGRGLASGHSVAIPTRVRRIVGAGLPRSR

Additional Information

Analysis of Positive Selection in Clinical Isolates *new*

• Analysis of dN/dS (omega) in two collections of Mtb clinical isolates using GenomegaMap (Window model) (see description of methods)
  • Moldova: 2,057 clinical isolates
  • global set: 5,195 clinical isolates from 15 other countries
• In the omega plots, the black line shows the mean estimate of omega (dN/dS) at each codon, and the blue lines are the bounds for the 95% credible interval (95%CI, from MCMC sampling).
• A gene is under significant positive selection if the lower-bound of the 95%CI of omega (lower blue line) exceeds 1.0 at any codon.

	Moldova (2,057)	global set (5,195)
under significant positive selection?	NO	NO
omega peak height (95%CI lower bound)	0.96 (0.23)	1.39 (0.58)
codons under selection
omega plots
genetic variants*	link	link
statistics at each codon	link	link