ORF information
ORF ID TF00466 (frame 1) Gene ID HP0017
Position and sequences 14248...16611(787 aa) Gene Name/synonym comB4 /virB4
Organism Helicobacter pylori 26695 Cluster 68 genes
Product Type IV secretion system protein VirB4 homolog
1stcategory P-T4SS 2ndcategory VirB4/TrbE/CagE Family
3rdcategory DNA Uptake/Release
Function Component of the Type IV transformation competence system comB, which is involved in DNA transformation competence acquiring DNA from the extracellular milieu. ComB7 is associated with natural transformation.
References PubMed:9663688  PubMed:16428391 

Functional Annotation
  KEGG database
Organism H.pylori Gene entry HP0017
Gene name virB Synonyms 4
Definition virB4 homolog
Class Genetic Information Processing; Sorting and Degradation; Type IV secretion system [PATH:hpy03080]
Classification Sorting and Degradation
DBLinks GeneID 899097 GI 15644650 TIGR HP0017 UniProt O24862
  COG Clusters of Orthologous Groups of proteins
Gene Classification Coords (size) Product
U 37 .. 787 (751) Type IV secretory pathway, VirB4 components

Blast results (KEGG)
H.pylori :  BlastP (output)
Score Expect Query coverage Subject coverage
1538 0.0 100.0000 100.0000

Evidence ID Name Loci start-end InterPro ID InterPro Name
HMMTigr TIGR00929 VirB4_CagE [ 0 - 787 ] IPR004346 CagE, TrbE, VirB component of type IV transporter system

GO (Gene Onthology)
ID Type Description
0005524 Molecular Function ATP binding

Blast Results (Swiss-Prot)
Score Expect Coverage Query Coverage Subject Accesion Number Product (Click to view blast result)
121.0000 2e-26 94.4091 99.8724 Q6FYW7 Type IV secretion system protein virB4


Protein localization analysis
Psort (output)