Protein Info for b1992 in Escherichia coli BW25113

Name: cobS
Annotation: cobalamin synthase (NCBI)

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 COBS_ECO81: Adenosylcobinamide-GDP ribazoletransferase (cobS) from Escherichia coli O81 (strain ED1a)

KEGG orthology group: K02233, adenosylcobinamide-GDP ribazoletransferase [EC: 2.7.8.26] (inferred from 100% identity to eco:b1992)

MetaCyc: 100% identical to cobalamin 5'-phosphate synthase (Escherichia coli K-12 substr. MG1655)
Adenosylcobinamide-GDP ribazoletransferase. [EC: 2.7.8.26]

Predicted SEED Role

No annotation

MetaCyc Pathways

superpathway of adenosylcobalamin salvage from cobinamide I (8/8 steps found)
2-methyladeninyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
5-hydroxybenzimidazolyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
5-methoxy-6-methylbenzimidazolyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
5-methoxybenzimidazolyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
5-methylbenzimidazolyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
adeninyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
adenosylcobalamin biosynthesis from adenosylcobinamide-GDP I (3/3 steps found)
benzimidazolyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (3/3 steps found)
superpathway of adenosylcobalamin salvage from cobinamide II (7/9 steps found)
4-methylphenyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (2/3 steps found)
phenyl adenosylcobamide biosynthesis from adenosylcobinamide-GDP (2/3 steps found)
adenosylcobalamin biosynthesis from adenosylcobinamide-GDP II (2/4 steps found)
adenosylcobalamin biosynthesis II (aerobic) (17/33 steps found)
adenosylcobalamin biosynthesis I (anaerobic) (16/36 steps found)

KEGG Metabolic Maps

Porphyrin and chlorophyll metabolism

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.7.8.26

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 P36561 at UniProt or InterPro

Protein Sequence (247 amino acids)

>b1992 cobalamin synthase (NCBI) (Escherichia coli BW25113)
MSKLFWAMLSFITRLPVPRRWSQGLDFEHYSRGIITFPLIGLLLGAISGLVFMVLQAWCG
APLAALFSVLVLVLMTGGFHLDGLADTCDGVFSARSRDRMLEIMRDSRLGTHGGLALIFV
VLAKILVLSELALRGESILASLAAACAVSRGTAALLMYRHRYAREEGLGNVFIGKIDGRQ
TCVTLGLAAIFAAVLLPGMHGVAAMVVTMVAIFILGQLLKRTLGGQTGDTLGAAIELGEL
VFLLALL