Protein Info for Dsui_1275 in Dechlorosoma suillum PS

Annotation: protein-export chaperone SecB

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 50 100 154 PF02556: SecB" amino acids 3 to 142 (140 residues), 189 bits, see alignment E=2e-60 TIGR00809: protein-export chaperone SecB" amino acids 5 to 141 (137 residues), 175.7 bits, see alignment E=2.5e-56

Best Hits

Swiss-Prot: 72% identical to SECB_DECAR: Protein-export protein SecB (secB) from Dechloromonas aromatica (strain RCB)

KEGG orthology group: K03071, preprotein translocase subunit SecB (inferred from 72% identity to app:CAP2UW1_1508)

Predicted SEED Role

"Protein export cytoplasm chaperone protein (SecB, maintains protein to be exported in unfolded state)"

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

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

Search 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 G8QM97 at UniProt or InterPro

Protein Sequence (154 amino acids)

>Dsui_1275 protein-export chaperone SecB (Dechlorosoma suillum PS)
MSQAESPVFAIEKLYVKDLSVEVPNAPQIFLEQTSPQVDIQLRSEGSGLGDGMFEVVLTV
TVTAKLEDGKTVFLVEAGQAGVFQIRNVPEENLEPLLAIACPNVLFPYAREVVSSAIARA
GFAPVVLQPVNFEALYMARQAEAQQAGANEVPIQ