Hmdb loader
Identification
HMDB Protein ID HMDBP12307
Secondary Accession Numbers None
Name Cytochrome P450 monooxygenase htyF
Synonyms
  1. L-homotyrosine biosynthetic cluster protein A
Gene Name HTYF
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Cytochrome P450 monooxygenase; 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
Cellular Component
integral to membrane
Molecular Function
monooxygenase activity
iron ion binding
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
heme binding
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 77152.18
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions
  • 8-28;588-608;
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID K0E690
UniProtKB/Swiss-Prot Entry Name HTYF_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 ]