Protein Info for Psyr_4458 in Pseudomonas syringae pv. syringae B728a ΔmexB

Annotation: Antitermination protein NusB

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

1 50 100 165 TIGR01951: transcription antitermination factor NusB" amino acids 26 to 153 (128 residues), 143.8 bits, see alignment E=1.8e-46 PF01029: NusB" amino acids 28 to 152 (125 residues), 114.1 bits, see alignment E=3.3e-37

Best Hits

Swiss-Prot: 100% identical to NUSB_PSEU2: Transcription antitermination protein NusB (nusB) from Pseudomonas syringae pv. syringae (strain B728a)

KEGG orthology group: K03625, N utilization substance protein B (inferred from 100% identity to psb:Psyr_4458)

Predicted SEED Role

"Transcription termination protein NusB" in subsystem Transcription factors bacterial

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Compare to protein structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

See Q4ZMY4 at UniProt or InterPro

Protein Sequence (165 amino acids)

>Psyr_4458 Antitermination protein NusB (Pseudomonas syringae pv. syringae B728a ΔmexB)
MISDDTDQFNPRDAKSPEIAKGKSAKRREARQMATQALYQRHMAGHALNEIEAQFRVDND
FSNVDGTYFRELLHGVATNQTEIDTALKPCLDLTIEELDPIELAILRLSTFELLKRIDVP
YRVVINEGIELAKVYGSTDGHKFVNGVLDKLAPRLREVEVKAHKR