Protein Info for B158DRAFT_0126 in Kangiella aquimarina DSM 16071

Annotation: NADH-quinone oxidoreductase, B subunit

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

• TIGR01957: NADH-quinone oxidoreductase, B subunit
  • amino acids 12 to 154 (143 residues), 254.4 bits, E=1.5e-80
• PF01058: Oxidored_q6
  • amino acids 38 to 147 (110 residues), 99.6 bits, E=5.6e-33

Best Hits

Swiss-Prot: 82% identical to NUOB_THISH: NADH-quinone oxidoreductase subunit B (nuoB) from Thioalkalivibrio sulfidiphilus (strain HL-EbGR7)

KEGG orthology group: K00331, NADH dehydrogenase I subunit B [EC: 1.6.5.3] (inferred from 96% identity to kko:Kkor_0290)

Predicted SEED Role

"NADH-ubiquinone oxidoreductase chain B (EC 1.6.5.3)" in subsystem Respiratory Complex I (EC 1.6.5.3)

MetaCyc Pathways

• aerobic respiration III (alternative oxidase pathway) (3/3 steps found)
• aerobic respiration I (cytochrome c) (3/4 steps found)
• NADH to cytochrome bd oxidase electron transfer I (1/2 steps found)
• NADH to cytochrome bo oxidase electron transfer I (1/2 steps found)
• Fe(II) oxidation (3/6 steps found)
• NAD(P)/NADPH interconversion (2/6 steps found)

KEGG Metabolic Maps

• Oxidative phosphorylation

Isozymes

Compare fitness of predicted isozymes for: 1.6.5.3

Use Curated BLAST to search for 1.6.5.3

Protein Sequence (187 amino acids)

>B158DRAFT_0126 NADH-quinone oxidoreductase, B subunit (Kangiella aquimarina DSM 16071)
MGLEKQLQGDGFVTTSIKELFDWARTGSMWPVTFGLACCAVEMMHAGAARYDMDRFGVIF
RPSPRQSDVMIVAGTLTNKMAPALRRVYDQMPDPKWVISMGSCANGGGYYHYSYSVVRGC
DRIIPVDIYVPGCPPSAEALLYGIIQLQNKIRRQKVIPRSLENSTKGEQTDVAELTQSKN
NEGVSLG