Protein Info for BBR_RS13295 in Bifidobacterium breve UCC2003

Annotation: 5-(carboxyamino)imidazole ribonucleotide mutase

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

• PF00731: AIRC
  • amino acids 8 to 156 (149 residues), 220 bits, E=5e-70
• TIGR01162: phosphoribosylaminoimidazole carboxylase, catalytic subunit
  • amino acids 9 to 165 (157 residues), 220.3 bits, E=4.3e-70

Best Hits

Swiss-Prot: 68% identical to PURE_BACSU: N5-carboxyaminoimidazole ribonucleotide mutase (purE) from Bacillus subtilis (strain 168)

KEGG orthology group: K01588, 5-(carboxyamino)imidazole ribonucleotide mutase [EC: 5.4.99.18] (inferred from 98% identity to blo:BL1130)

MetaCyc: 56% identical to N5-carboxyaminoimidazole ribonucleotide mutase (Escherichia coli K-12 substr. MG1655)
5-(carboxyamino)imidazole ribonucleotide mutase. [EC: 5.4.99.18]

Predicted SEED Role

"Phosphoribosylaminoimidazole carboxylase catalytic subunit (EC 4.1.1.21)" in subsystem De Novo Purine Biosynthesis (EC 4.1.1.21)

MetaCyc Pathways

• superpathway of histidine, purine, and pyrimidine biosynthesis (39/46 steps found)
• superpathway of purine nucleotides de novo biosynthesis I (18/21 steps found)
• superpathway of purine nucleotides de novo biosynthesis II (21/26 steps found)
• inosine-5'-phosphate biosynthesis I (6/6 steps found)
• inosine-5'-phosphate biosynthesis II (5/5 steps found)
• inosine-5'-phosphate biosynthesis III (5/6 steps found)

KEGG Metabolic Maps

• Purine metabolism

Isozymes

Compare fitness of predicted isozymes for: 4.1.1.21

Use Curated BLAST to search for 4.1.1.21 or 5.4.99.18

Protein Sequence (166 amino acids)

>BBR_RS13295 5-(carboxyamino)imidazole ribonucleotide mutase (Bifidobacterium breve UCC2003)
MANESKPEVAVVMGSASDWETMKRACDILDQFGVAYHKQVISAHRTPELMAEFAHNARAN
GLKVIIAGAGGAAHLPGMIAAQTTLPVIGVPVRSHALSGWDSLLSIVQMPGGIPVATTAV
GNSGATNAGLLAVQMLSAFEPELADKLEDYRNEMKEKVAESNAQLV