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hemB [2017-09-04 17:00:55]
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hemB [2017-09-04 17:00:55]

porphobilinogen synthase
locus
BSU28130
pI
4.98
mw
36.05 kDa
protein length
324 aa Sequence Blast
gene length
972 bp Sequence Blast
function
heme biosynthesis
product
porphobilinogen synthase
essential
no
ec
4.2.1.24
synonyms
Outlinks
KEGGBsubCycSubtiListUniProtExpression Browser

Genomic Context

      

categories

  • [category|SW 2|Metabolism] → [category|SW 2.6|Additional metabolic pathways] → [category|SW 2.6.2|Biosynthesis of cofactors] → [category|SW 2.6.2.6|Biosynthesis of heme/ siroheme]
  • [category|SW 6|Groups of genes] → [category|SW 6.4|Phosphoproteins] → [category|SW 6.4.1|Phosphorylation on an Arg residue]

    • Gene

    Coordinates
    2,874,202 → 2,875,176

    The protein

    Catalyzed reaction/ biological activity

  • 2 5-aminolevulinate = porphobilinogen + 2 H2O (according to Swiss-Prot)

    • Protein family

  • ALADH family (according to Swiss-Prot)

    • Modification

  • phosphorylated on Arg-217 [Pubmed|22517742]

    • [SW|Cofactors]

  • zinc

    • Structure

  • [PDB|1W5Q] (from ''Pseudomonas aeruginosa'', 48% identity) [Pubmed|15644204]

    • [SW|Localization]

  • cytoplasm (according to Swiss-Prot)

    • Expression and Regulation

    Operons

    count
    2
    genes
    [gene|B1413EB525000744BE8E429E760220A13BC4530D|hemA]-[gene|88616BA1E853E11BE0CB18F06287CA4C68143148|hemX]-[gene|D266E22E07B849E2AEB0EF232C49A2FE1EA4E02B|hemC]-[gene|33459D4389F85D60311FCE770BBA0ED9802BA342|hemD]-[gene|70263A55987F110209367CF45AD65A584AD3077D|hemB]-[gene|A54B2C86638D474F5F892003B42C535B5B39A42E|hemL]
    description
    [Pubmed|1672867]

    sigma factors

  • [protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|1672867], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]

    • regulatory mechanism

  • [protein|00BCAAE16576DC5426A652580C69A570FC7A1C2C|PerR]: repression, [Pubmed|11532148], in [regulon|00BCAAE16576DC5426A652580C69A570FC7A1C2C|PerR regulon]

    • regulation

  • induced by hydrogen peroxide ([protein|search|PerR]) [Pubmed|11532148]
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    References

  • 10217486,11532148,1672867,4214010,804803,12926268,20823524,22517742,15644204