Hmdb loader
Identification
HMDB Protein ID HMDBP12308
Secondary Accession Numbers None
Name 2-oxoglutarate-dependent dioxygenase htyE
Synonyms
  1. L-homotyrosine biosynthetic cluster protein E
Gene Name HTYE
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function 2-oxoglutarate-dependent dioxygenase; part of the gene cluster that mediates the de novo generation of L-homotyrosine from acetyl-CoA and 4-hydroxyphenyl-pyruvate (PubMed:22998630). L-homotyrosine is a building block of echinocandin B, a fungal lipidated cyclic hexapeptide that acts as an antifungal agent (PubMed:22998630). L-homotyrosine 4-hydroxyphenyl-pyruvate first undergoes an aldol-type condensation by htyA with the C-2 of acetyl-CoA followed by the release of CoA to form 2-(4-hydroxybenzyl)-malate (PubMed:22998630). This is followed by isomerization of 2-(4-hydroxy-benzyl)-malate to 3-(4-hydroxybenzyl)-malate by htyD (PubMed:22998630). Thereafter, 3-(4-hydroxybenzyl)-malate undergoes decarboxylation and oxidation to form 2-oxo-4-(4-hydroxybenzyl)butanoic acid, coupled to reduction of NAD(+) to NADH by htyC (PubMed:22998630). The product then undergoes transamination catalyzed by htyB to form L-homotyrosine (PubMed:22998630).
Pathways Not Available
Reactions Not Available
GO Classification
Molecular Function
metal ion binding
dioxygenase activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues Not Available
Molecular Weight 37698.82
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID K0DZA0
UniProtKB/Swiss-Prot Entry Name HTYE_ASPRU
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Cacho RA, Jiang W, Chooi YH, Walsh CT, Tang Y: Identification and characterization of the echinocandin B biosynthetic gene cluster from Emericella rugulosa NRRL 11440. J Am Chem Soc. 2012 Oct 10;134(40):16781-90. doi: 10.1021/ja307220z. Epub 2012 Oct 1. [PubMed:22998630 ]
  2. Mattay J, Houwaart S, Huttel W: Cryptic Production of trans-3-Hydroxyproline in Echinocandin B Biosynthesis. Appl Environ Microbiol. 2018 Mar 19;84(7). pii: AEM.02370-17. doi: 10.1128/AEM.02370-17. Print 2018 Apr 1. [PubMed:29352089 ]