Identification
HMDB Protein ID CDBP01448
Secondary Accession Numbers Not Available
Name Cytochrome P450 1A2
Description Not Available
Synonyms
  1. CYPIA2
  2. Cytochrome P(3)450
  3. Cytochrome P450 4
  4. Cytochrome P450-P3
Gene Name CYP1A2
Protein Type Metal Binding
Biological Properties
General Function Involved in monooxygenase activity
Specific Function Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.
GO Classification
Biological Process
hydrogen peroxide biosynthetic process
post-embryonic development
porphyrin-containing compound metabolic process
alkaloid metabolic process
cellular respiration
exogenous drug catabolic process
heterocycle metabolic process
monocarboxylic acid metabolic process
monoterpenoid metabolic process
oxidative deethylation
steroid catabolic process
toxin biosynthetic process
xenobiotic metabolic process
cellular response to cadmium ion
lung development
dibenzo-p-dioxin metabolic process
regulation of gene expression
oxidative demethylation
methylation
Cellular Component
endoplasmic reticulum membrane
Function
ion binding
cation binding
metal ion binding
binding
catalytic activity
transition metal ion binding
electron carrier activity
iron ion binding
monooxygenase activity
heme binding
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
oxidoreductase activity
Molecular Function
demethylase activity
caffeine oxidase activity
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
iron ion binding
heme binding
electron carrier activity
aromatase activity
Process
metabolic process
oxidation reduction
Cellular Location
  1. Peripheral membrane protein
  2. Peripheral membrane protein
  3. Endoplasmic reticulum membrane
  4. Microsome membrane
Pathways
Gene Properties
Chromosome Location 15
Locus 15q24.1
SNPs CYP1A2
Gene Sequence
>1548 bp
ATGGCATTGTCCCAGTCTGTTCCCTTCTCGGCCACAGAGCTTCTCCTGGCCTCTGCCATC
TTCTGCCTGGTATTCTGGGTGCTCAAGGGTTTGAGGCCTCGGGTCCCCAAAGGCCTGAAA
AGTCCACCAGAGCCATGGGGCTGGCCCTTGCTCGGGCATGTGCTGACCCTGGGGAAGAAC
CCGCACCTGGCACTGTCAAGGATGAGCCAGCGCTACGGGGACGTCCTGCAGATCCGCATT
GGCTCCACGCCCGTGCTGGTGCTGAGCCGCCTGGACACCATCCGGCAGGCCCTGGTGCGG
CAGGGCGACGATTTCAAGGGCCGGCCTGACCTCTACACCTCCACCCTCATCACTGATGGC
CAGAGCTTGACCTTCAGCACAGACTCTGGACCGGTGTGGGCTGCCCGCCGGCGCCTGGCC
CAGAATGCCCTCAACACCTTCTCCATCGCCTCTGACCCAGCTTCCTCATCCTCCTGCTAC
CTGGAGGAGCATGTGAGCAAGGAGGCTAAGGCCCTGATCAGCAGGTTGCAGGAGCTGATG
GCAGGGCCTGGGCACTTCGACCCTTACAATCAGGTGGTGGTGTCAGTGGCCAACGTCATT
GGTGCCATGTGCTTCGGACAGCACTTCCCTGAGAGTAGCGATGAGATGCTCAGCCTCGTG
AAGAACACTCATGAGTTCGTGGAGACTGCCTCCTCCGGGAACCCCCTGGACTTCTTCCCC
ATCCTTCGCTACCTGCCTAACCCTGCCCTGCAGAGGTTCAAGGCCTTCAACCAGAGGTTC
CTGTGGTTCCTGCAGAAAACAGTCCAGGAGCACTATCAGGACTTTGACAAGAACAGTGTC
CGGGACATCACGGGTGCCCTGTTCAAGCACAGCAAGAAGGGGCCTAGAGCCAGCGGCAAC
CTCATCCCACAGGAGAAGATTGTCAACCTTGTCAATGACATCTTTGGAGCAGGATTTGAC
ACAGTCACCACAGCCATCTCCTGGAGCCTCATGTACCTTGTGACCAAGCCTGAGATACAG
AGGAAGATCCAGAAGGAGCTGGACACTGTGATTGGCAGGGAGCGGCGGCCCCGGCTCTCT
GACAGACCCCAGCTGCCCTACTTGGAGGCCTTCATCCTGGAGACCTTCCGACACTCCTCC
TTCTTGCCCTTCACCATCCCCCACAGCACAACAAGGGACACAACGCTGAATGGCTTCTAC
ATCCCCAAGAAATGCTGTGTCTTCGTAAACCAGTGGCAGGTCAACCATGACCCAGAGCTG
TGGGAGGACCCCTCTGAGTTCCGGCCTGAGCGGTTCCTCACCGCCGATGGCACTGCCATT
AACAAGCCCTTGAGTGAGAAGATGATGCTGTTTGGCATGGGCAAGCGCCGGTGTATCGGG
GAAGTCCTGGCCAAGTGGGAGATCTTCCTCTTCCTGGCCATCCTGCTACAGCAACTGGAG
TTCAGCGTGCCGCCGGGCGTGAAAGTCGACCTGACCCCCATCTACGGGCTGACCATGAAG
CACGCCCGCTGTGAACATGTCCAGGCGCGGCGCTTCTCCATCAATTGA
Protein Properties
Number of Residues 515
Molecular Weight 58406.915
Theoretical pI 9.049
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Cytochrome P450 1A2
MALSQSVPFSATELLLASAIFCLVFWVLKGLRPRVPKGLKSPPEPWGWPLLGHVLTLGKN
PHLALSRMSQRYGDVLQIRIGSTPVLVLSRLDTIRQALVRQGDDFKGRPDLYTSTLITDG
QSLTFSTDSGPVWAARRRLAQNALNTFSIASDPASSSSCYLEEHVSKEAKALISRLQELM
AGPGHFDPYNQVVVSVANVIGAMCFGQHFPESSDEMLSLVKNTHEFVETASSGNPLDFFP
ILRYLPNPALQRFKAFNQRFLWFLQKTVQEHYQDFDKNSVRDITGALFKHSKKGPRASGN
LIPQEKIVNLVNDIFGAGFDTVTTAISWSLMYLVTKPEIQRKIQKELDTVIGRERRPRLS
DRPQLPYLEAFILETFRHSSFLPFTIPHSTTRDTTLNGFYIPKKCCVFVNQWQVNHDPEL
WEDPSEFRPERFLTADGTAINKPLSEKMMLFGMGKRRCIGEVLAKWEIFLFLAILLQQLE
FSVPPGVKVDLTPIYGLTMKHARCEHVQARRFSIN
GenBank ID Protein 30339
UniProtKB/Swiss-Prot ID P05177
UniProtKB/Swiss-Prot Entry Name CP1A2_HUMAN
PDB IDs
GenBank Gene ID Z00036
GeneCard ID CYP1A2
GenAtlas ID CYP1A2
HGNC ID HGNC:2596
References
General References Not Available