Protein Info for CA264_19915 in Pontibacter actiniarum KMM 6156, DSM 19842

Annotation: hydroxymethylbilane synthase

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: 53% identical to HEM3_CYTH3: Porphobilinogen deaminase (hemC) from Cytophaga hutchinsonii (strain ATCC 33406 / NCIMB 9469)

KEGG orthology group: K01749, hydroxymethylbilane synthase [EC: 2.5.1.61] (inferred from 58% identity to dfe:Dfer_3276)

Predicted SEED Role

"Porphobilinogen deaminase (EC 2.5.1.61)" in subsystem Experimental tye or Heme and Siroheme Biosynthesis (EC 2.5.1.61)

MetaCyc Pathways

superpathway of heme b biosynthesis from glutamate (10/10 steps found)
tetrapyrrole biosynthesis I (from glutamate) (6/6 steps found)
superpathway of heme b biosynthesis from glycine (7/8 steps found)
dipyrromethane cofactor biosynthesis (3/4 steps found)
tetrapyrrole biosynthesis II (from glycine) (3/4 steps found)
adenosylcobalamin biosynthesis II (aerobic) (13/33 steps found)
superpathway of bacteriochlorophyll a biosynthesis (6/26 steps found)
adenosylcobalamin biosynthesis I (anaerobic) (13/36 steps found)

KEGG Metabolic Maps

Porphyrin and chlorophyll metabolism

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.5.1.61

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 A0A1X9YXB3 at UniProt or InterPro

Protein Sequence (316 amino acids)

>CA264_19915 hydroxymethylbilane synthase (Pontibacter actiniarum KMM 6156, DSM 19842)
MAENITDRTIRIGTRGSKLALWQAEAAAEKLQAAGFKTELVIISTKGDQVLDKSLDKIGS
KGVFTEELEVALREGQVEIAVHSAKDVQSTIPADLELVAFMEREQVNDVILSFDPDFKLE
RESNAVIGTSSTRRKALLKKYYPNISTAESRGNLQTRLRKLEEKQFDALMLAYAGVSRMG
YDHLIVHTFPEYEFIPAAGQGSVAIECARNLEPELKKGLKQALNHTQTHVCLLAERAFLR
TMEGGCSIPSFALATLTGEGVSITGGIVSLDGKILLQETLEGPTVAAEEMGEELANIILG
QGGDEILRSIRAERGE