Protein Info for Shew_1770 in Shewanella loihica PV-4

Annotation: nitrate reductase (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

1 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 831 signal peptide" amino acids 1 to 30 (30 residues), see Phobius details TIGR01706: periplasmic nitrate reductase, large subunit" amino acids 2 to 831 (830 residues), 1611.1 bits, see alignment E=0 PF04879: Molybdop_Fe4S4" amino acids 42 to 94 (53 residues), 64 bits, see alignment 1.5e-21 PF00384: Molybdopterin" amino acids 98 to 571 (474 residues), 246.9 bits, see alignment E=4.9e-77 PF01568: Molydop_binding" amino acids 717 to 825 (109 residues), 89.9 bits, see alignment E=1.8e-29

Best Hits

Swiss-Prot: 79% identical to NAPA2_PHOPR: Periplasmic nitrate reductase 2 (napA2) from Photobacterium profundum (strain SS9)

KEGG orthology group: K02567, periplasmic nitrate reductase NapA [EC: 1.7.99.4] (inferred from 78% identity to aha:AHA_1586)

MetaCyc: 73% identical to nitrate reductase large subunit (Aliivibrio fischeri)
Nitrate reductase (cytochrome). [EC: 1.9.6.1]

Predicted SEED Role

"Periplasmic nitrate reductase precursor (EC 1.7.99.4)" in subsystem Nitrate and nitrite ammonification (EC 1.7.99.4)

MetaCyc Pathways

KEGG Metabolic Maps

Isozymes

Compare fitness of predicted isozymes for: 1.7.99.4

Use Curated BLAST to search for 1.7.99.4 or 1.9.6.1

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 A3QDT8 at UniProt or InterPro

Protein Sequence (831 amino acids)

>Shew_1770 nitrate reductase (RefSeq) (Shewanella loihica PV-4)
MKMNRREFMKANAAMAAASVAGLALPATASNLITSSEQTKLEWNKAPCRFCGTGCSVIVA
TRDGKVVATHGDAESEVNRGLNCIKGYFLSKIMYGKDRLQSPMLRMTNGKYDKHGEFTPV
SWDTAFDTMADKWKATIKKKGPTAIGMFGSGQWTVWEGYAASKLMKAGFGSNNIDPNARH
CMASAVGGFMRTFGIDEPMGCYDDMENADAFVLWGSNMAEMHPILWSRVTDRRLSAPHVK
VSVLSTFTHRSFDLADLGIVFTPQTDLAILNFIGNYIIQNDAVNWDFVNKHVNFRKGETD
IGYGLRPTHPLQQKAKNVKTAGKSTPIEFDAFKAFVADYDVASVSKLSGVPEDKLIELAK
LYADPNTKVTSFWTMGFNQHTRGVWCNNLIYNIHLLTGKISTPGNSPFSLTGQPSACGTA
REVGTFSHRLPADLVVNNPEHRKIAEKIWKIPDGIIPPKPGYHAVEQNRRLKDGDINAYW
VQVNNNMQAGPNINEEGLPGYRNPENFIVVSDAYPTVTTQAADLILPTAMWVEKEGAYGN
AERRTQFWHQMVKAPGESRSDLWQLMEFSKRFTTDEVWPKEVLAANPEYKGKTLFQVLYQ
NGNVDKFPLEQADPKYMNDEAKHFGYYVQKGLFEEYATFGRGHGHDLADFDTYHEVHGLR
WPVVNGKETKWRFREGSDPYVKPGTGFQFYGKPDGKAVIYALPYEPAAESPDEEFNLWLS
TGRVLEHWHSGSMTQRVPELYRAFPDAVCFMHPEDAKKRGLRRGDEVKVVSRRGEIKTRV
ETRGRNKPPVGLVFVPWFDASQLINKVTLDATDPLSKQTDFKKCAVKVVKA