M1EPZ9 · M1EPZ9_MUSPF

Function

function

Cytochromes P450 are a group of heme-thiolate monooxygenases. They oxidize a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.

Catalytic activity

  • (12S)-hydroperoxy-(5Z,8Z,10E,14Z)-eicosatetraenoate = 12-oxo-(5Z,8Z,10E,14Z)-eicosatetraenoate + H2O
    This reaction proceeds in the forward direction.
    EC:4.2.1.152 (UniProtKB | ENZYME | Rhea)
  • (13S)-hydroperoxy-(9Z,11E)-octadecadienoate = 13-oxo-(9Z,11E)-octadecadienoate + H2O
    This reaction proceeds in the forward direction.
  • (15S)-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoate = 15-oxo-(5Z,8Z,11Z,13E)-eicosatetraenoate + H2O
    This reaction proceeds in the forward direction.
  • (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate + reduced [NADPH--hemoprotein reductase] + O2 = (19R,20S)-epoxy-(4Z,7Z,10Z,13Z,16Z)-docosapentaenoate + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • (5S)-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoate = 5-oxo-(6E,8Z,11Z,14Z)-eicosatetraenoate + H2O
    This reaction proceeds in the forward direction.
  • (5Z,8Z,11Z,14Z)-eicosatetraenoate + reduced [NADPH--hemoprotein reductase] + O2 = (14R,15S)-epoxy-(5Z,8Z,11Z)-eicosatrienoate + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • (5Z,8Z,11Z,14Z)-eicosatetraenoate + reduced [NADPH--hemoprotein reductase] + O2 = 19-hydroxy-(5Z,8Z,11Z,14Z)-eicosatetraenoate + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate + reduced [NADPH--hemoprotein reductase] + O2 = (17R,18S)-epoxy-(5Z,8Z,11Z,14Z)-eicosatetraenoate + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • 17beta-estradiol + reduced [NADPH--hemoprotein reductase] + O2 = 2-hydroxy-17beta-estradiol + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • 17beta-estradiol + reduced [NADPH--hemoprotein reductase] + O2 = 4-hydroxy-17beta-estradiol + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • all-trans-retinal + reduced [NADPH--hemoprotein reductase] + O2 = all-trans-retinoate + oxidized [NADPH--hemoprotein reductase] + H2O + 2 H+
    This reaction proceeds in the forward direction.
  • all-trans-retinol + reduced [NADPH--hemoprotein reductase] + O2 = all-trans-retinal + oxidized [NADPH--hemoprotein reductase] + 2 H2O + H+
    This reaction proceeds in the forward direction.
  • estrone + reduced [NADPH--hemoprotein reductase] + O2 = 2-hydroxyestrone + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.
  • estrone + reduced [NADPH--hemoprotein reductase] + O2 = 4-hydroxyestrone + oxidized [NADPH--hemoprotein reductase] + H2O + H+
    This reaction proceeds in the forward direction.

Cofactor

heme (UniProtKB | Rhea| CHEBI:30413 )

Pathway

Cofactor metabolism; retinol metabolism.
Lipid metabolism.

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site291Fe (UniProtKB | ChEBI) of heme (UniProtKB | ChEBI); axial binding residue

GO annotations

AspectTerm
Cellular Componentendoplasmic reticulum membrane
Molecular Functionaromatase activity
Molecular Functionheme binding
Molecular Functionhydroperoxy icosatetraenoate dehydratase activity
Molecular Functioniron ion binding
Molecular Functionsteroid 17-alpha-monooxygenase activity
Biological Processhormone biosynthetic process
Biological Processprogesterone metabolic process
Biological Processretinol metabolic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Cytochrome P450 1A
  • EC number

Organism names

Accessions

  • Primary accession
    M1EPZ9

Subcellular Location

Endoplasmic reticulum membrane
; Peripheral membrane protein
Microsome membrane
; Peripheral membrane protein

Keywords

Family & Domains

Sequence similarities

Belongs to the cytochrome P450 family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    340
  • Mass (Da)
    39,067
  • Last updated
    2013-05-01 v1
  • Checksum
    56F8CC2254B77CFC
AEALLGRLQQQMAEAGCFEPYRYVVVSVANVICAMCFGKRYDHDDQELLSLVNLSNEFGEAVASGSPVDFFPILRYLPNPTLDSFKDLNKKFYNFMQKLVKEHYRTFEKGHIRDITDSLIEHCQEKRLDENANIQLSDEKIVNVVLDLFGAGFDTVTTAISWSLLYLVTNPNVQKKIQEELDTVIGRARQPRLSDRPQLPYMEAFILEIFRHASFVPFTIPHSTTRDTSLSGFYIPKGRCVFVNQWKINHDQKLWGDPSKFRPERFLNLDGTINKALSEKVILFGMGKRKCIGETIARLEVFLFLAILLQQVEFSVPQGTRVDMTPIYGLTMKHARCEHF

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue340

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JP008305
EMBL· GenBank· DDBJ
AER96902.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

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