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Protein

Delta-aminolevulinic acid dehydratase

Gene

hemB

Organism
Staphylococcus aureus (strain COL)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes an early step in the biosynthesis of tetrapyrroles. Binds two molecules of 5-aminolevulinate per subunit, each at a distinct site, and catalyzes their condensation to form porphobilinogen (By similarity).By similarity

Catalytic activityi

2 5-aminolevulinate = porphobilinogen + 2 H2O.

Cofactori

Zn2+By similarityNote: Binds 1 zinc ion per monomer.By similarity

Pathwayi: protoporphyrin-IX biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes coproporphyrinogen-III from 5-aminolevulinate.
Proteins known to be involved in the 4 steps of the subpathway in this organism are:
  1. Delta-aminolevulinic acid dehydratase (hemB)
  2. Porphobilinogen deaminase (hemC)
  3. no protein annotated in this organism
  4. Uroporphyrinogen decarboxylase (hemE)
This subpathway is part of the pathway protoporphyrin-IX biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes coproporphyrinogen-III from 5-aminolevulinate, the pathway protoporphyrin-IX biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi118Zinc; catalyticBy similarity1
Metal bindingi120Zinc; catalyticBy similarity1
Metal bindingi128Zinc; catalyticBy similarity1
Active sitei195Schiff-base intermediate with substrateBy similarity1
Binding sitei205Substrate 1By similarity1
Binding sitei217Substrate 1By similarity1
Metal bindingi233MagnesiumBy similarity1
Active sitei248Schiff-base intermediate with substrateBy similarity1
Binding sitei274Substrate 2By similarity1
Binding sitei313Substrate 2By similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLyase
Biological processHeme biosynthesis, Porphyrin biosynthesis
LigandMagnesium, Metal-binding, Zinc

Enzyme and pathway databases

UniPathwayiUPA00251; UER00318

Names & Taxonomyi

Protein namesi
Recommended name:
Delta-aminolevulinic acid dehydratase (EC:4.2.1.24)
Short name:
ALAD
Short name:
ALADH
Alternative name(s):
Porphobilinogen synthase
Gene namesi
Name:hemB
Ordered Locus Names:SACOL1715
OrganismiStaphylococcus aureus (strain COL)
Taxonomic identifieri93062 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcaceaeStaphylococcus
Proteomesi
  • UP000000530 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001405101 – 324Delta-aminolevulinic acid dehydrataseAdd BLAST324

Interactioni

Subunit structurei

Homooctamer.By similarity

Protein-protein interaction databases

STRINGi93062.SACOL1715

Structurei

3D structure databases

ProteinModelPortaliQ5HFA4
SMRiQ5HFA4
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the ALAD family.Curated

Phylogenomic databases

eggNOGiENOG4105D52 Bacteria
COG0113 LUCA
HOGENOMiHOG000020323
KOiK01698
OMAiYQMDYAN

Family and domain databases

Gene3Di3.20.20.70, 1 hit
InterProiView protein in InterPro
IPR001731 ALAD
IPR030656 ALAD_AS
IPR013785 Aldolase_TIM
PANTHERiPTHR11458 PTHR11458, 1 hit
PfamiView protein in Pfam
PF00490 ALAD, 1 hit
PIRSFiPIRSF001415 Porphbilin_synth, 1 hit
PRINTSiPR00144 DALDHYDRTASE
SMARTiView protein in SMART
SM01004 ALAD, 1 hit
PROSITEiView protein in PROSITE
PS00169 D_ALA_DEHYDRATASE, 1 hit

Sequencei

Sequence statusi: Complete.

Q5HFA4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKFDRHRRLR SSATMRDMVR ENHVRKEDLI YPIFVVEKDD VKKEIKSLPG
60 70 80 90 100
VYQISLNLLE SELKEAYDLG IRAIMFFGVP NSKDDIGTGA YIHDGVIQQA
110 120 130 140 150
TRIAKKMYDD LLIVADTCLC EYTDHGHCGV IDDHTHDVDN DKSLPLLVKT
160 170 180 190 200
AISQVEAGAD IIAPSNMMDG FVAEIRRGLD EAGYYNIPIM SYGVKYASSF
210 220 230 240 250
FGPFRDAADS APSFGDRKTY QMDPANRLEA LRELESDLKE GCDMMIVKPA
260 270 280 290 300
LSYLDIVRDV KNHTNVPVVA YNVSGEYSMT KAAAQNGWID EERVVMEQMV
310 320
SMKRAGADMI ITYFAKDICR YLDK
Length:324
Mass (Da):36,583
Last modified:February 15, 2005 - v1
Checksum:iBF24378E01E7C93E
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000046 Genomic DNA Translation: AAW36820.1
RefSeqiWP_000667126.1, NC_002951.2

Genome annotation databases

EnsemblBacteriaiAAW36820; AAW36820; SACOL1715
KEGGisac:SACOL1715

Similar proteinsi

Entry informationi

Entry nameiHEM2_STAAC
AccessioniPrimary (citable) accession number: Q5HFA4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 8, 2005
Last sequence update: February 15, 2005
Last modified: March 28, 2018
This is version 79 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

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