Protein Info for SM_b20172 in Sinorhizobium meliloti 1021

Annotation: cytochrome c protein

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 50 100 136 signal peptide" amino acids 1 to 28 (28 residues), see Phobius details PF00034: Cytochrom_C" amino acids 37 to 134 (98 residues), 34.1 bits, see alignment E=2.8e-12

Best Hits

Swiss-Prot: 46% identical to CYC2_BLAVI: Cytochrome c2 (cycA) from Blastochloris viridis

KEGG orthology group: K08738, cytochrome c (inferred from 100% identity to sme:SM_b20172)

MetaCyc: 51% identical to cytochrome c2 (Agrobacterium fabrum)

Predicted SEED Role

"Cytochrome c2" in subsystem Soluble cytochromes and functionally related electron carriers

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 Q92WZ0 at UniProt or InterPro

Protein Sequence (136 amino acids)

>SM_b20172 cytochrome c protein (Sinorhizobium meliloti 1021)
MAFRLGTLLTAFVLFGGTLGAAAPALALDPSVGDPGAGEKVFRKCQACHAVGPDAKSKTG
PLLNGIIGRSAGKAEGYAYSPAMSKAAEAGLTWTPEKIAEFLTSPKGFLPGTKMTFAGLR
KDQERADIIAYLATFP