Accession | TIGR03709 |
Name | PPK2_rel_1 |
Function | polyphosphate:nucleotide phosphotransferase, PPK2 family |
Trusted Cutoff | 247.20 |
Domain Trusted Cutoff | 247.20 |
Noise Cutoff | 240.85 |
Domain Noise Cutoff | 240.85 |
Isology Type | hypoth_equivalog |
EC Number | 2.7.4.- |
HMM Length | 264 |
Mainrole Category | Central intermediary metabolism |
Subrole Category | Phosphorus compounds |
Gene Ontology Term | GO:0005575: cellular_component cellular_component |
| GO:0006797: polyphosphate metabolic process biological_process |
| GO:0016776: phosphotransferase activity, phosphate group as acceptor molecular_function |
Author | Haft DH |
Entry Date | Jan 23 2009 4:55PM |
Last Modified | Feb 14 2011 3:27PM |
Comment | Members of this protein family belong to the polyphosphate kinase 2 (PPK2) family, which is not related in sequence to PPK1. While PPK1 tends to act in the biosynthesis of polyphosphate, or poly(P), members of the PPK2 family tend to use the terminal phosphate of poly(P) to regenerate ATP or GTP from the corresponding nucleoside diphosphate, or ADP from AMP as is the case with polyphosphate:AMP phosphotransferase (PAP). Members of this protein family most likely transfer the terminal phosphate between poly(P) and some nucleotide, but it is not clear which. |
Genome Property | GenProp0840: polyphosphate kinase/exopolyphosphatase system (HMM) |