Protein Info for Sama_2838 in Shewanella amazonensis SB2B
Annotation: sulfite reductase subunit beta (RefSeq)
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
Best Hits
Swiss-Prot: 100% identical to CYSI_SHEAM: Sulfite reductase [NADPH] hemoprotein beta-component (cysI) from Shewanella amazonensis (strain ATCC BAA-1098 / SB2B)
KEGG orthology group: K00381, sulfite reductase (NADPH) hemoprotein beta-component [EC: 1.8.1.2] (inferred from 100% identity to saz:Sama_2838)MetaCyc: 68% identical to sulfite reductase, hemoprotein subunit (Escherichia coli K-12 substr. MG1655)
Sulfite reductase (NADPH). [EC: 1.8.1.2]
Predicted SEED Role
"Sulfite reductase [NADPH] hemoprotein beta-component (EC 1.8.1.2)" in subsystem Cysteine Biosynthesis (EC 1.8.1.2)
MetaCyc Pathways
- superpathway of sulfate assimilation and cysteine biosynthesis (9/9 steps found)
- superpathway of L-methionine biosynthesis (by sulfhydrylation) (11/12 steps found)
- assimilatory sulfate reduction I (4/4 steps found)
- assimilatory sulfate reduction III (3/3 steps found)
- superpathway of sulfur amino acid biosynthesis (Saccharomyces cerevisiae) (6/10 steps found)
KEGG Metabolic Maps
Isozymes
Compare fitness of predicted isozymes for: 1.8.1.2
Use Curated BLAST to search for 1.8.1.2
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 A1S9I4 at UniProt or InterPro
Protein Sequence (571 amino acids)
>Sama_2838 sulfite reductase subunit beta (RefSeq) (Shewanella amazonensis SB2B) MSQYPIKPELQVQGQLSDNERLKAESNHLRGTITTDLKDEITGGFTGDNFMLVRFHGMYQ QDDRDLRAERAEQKLEPLHNVMLRARMPGGIIKPEQWLAIDEFAREHTMYGSIRLTTRQT FQFHGVFKPDIKPMHQMLNKIGIDSIATAGDVNRNVLCTSNPVESELHQQAYEWAAKISE HLLPKTRAYAEIWLGEEKVETTETEPVLGDSYLPRKFKTTVVIPPHNDVDVHANDLNFVA IAENGQLVGFNVLVGGGLAMTHGDKSTYPRRAEDLGFIGLEHVLKVAEHVVTVQRDYGDR VNRKNAKTKYTLDRIGVDAFKSEVEQRVGVAFGPSRPYEFTHRGDRFGWVEGIDGKHHLT LFIENGRLLDYPGKPLKTGVAEIAKVHKGDLRMTANQNLIIAGVAAEDKAQIEQLAREHG LLDNVTTQRKNSMACVSLPTCPLAMAEAERYLPTLVTHVEGILSKHGIADDHIILRVVGC PNGCGRAMLAEAGLVGRGPGKYNLYLGGNTAGTRIPKLYLDNVAEAEILAALDSLIGRWS VERNPGECFGDFVIRVGVVAEVKVSKTDFHA