Reviewed, UniProtKB/Swiss-Prot Q8HYN0 (CP17A_PAPCY)

Names and origin

Protein names

Recommended name:
    Steroid 17-alpha-hydroxylase/17,20 lyase
    EC=1.14.99.9
Alternative name(s):
    Cytochrome P450 17A1
    CYPXVII
    P450-C17
      Short name=P450c17

Gene names

Name:	CYP17A1
Synonyms:	CYP17

Organism

Papio cynocephalus (Yellow baboon)

Taxonomic identifier

9556 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Cercopithecidae › Cercopithecinae › Papio

Protein attributes

Sequence length	508 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	Conversion of pregnenolone and progesterone to their 17-alpha-hydroxylated products and subsequently to dehydroepiandrosterone (DHEA) and androstenedione. Catalyzes both the 17-alpha-hydroxylation and the 17,20-lyase reaction By similarity.
Catalytic activity	A steroid + AH2 + O2 = a 17-alpha-hydroxysteroid + A + H2O.
Cofactor	Heme group By similarity.
Pathway	Lipid metabolism; steroid biosynthesis.
Subcellular location	Membrane Potential. Membrane; Single-pass membrane protein.
Sequence similarities	Belongs to the cytochrome P450 family.

Ontologies

Keywords
Biological process	Steroidogenesis
Cellular component	Membrane
Ligand	Heme Iron Metal-binding
Molecular function	Monooxygenase Oxidoreductase
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW steroid biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	electron carrier activity Inferred from electronic annotation. Source: InterPro heme binding Inferred from electronic annotation. Source: InterPro steroid 17-alpha-monooxygenase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 508	508	Steroid 17-alpha-hydroxylase/17,20 lyase		PRO_0000051937
Sites
	Metal binding	442	1	Iron (heme axial ligand) By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8HYN0-1 [UniParc]. Last modified March 1, 2003. Version 1. Checksum: 92DEEDDF813F7263	FASTA	508	57,638
	10 20 30 40 50 60 MWELVALLLL TLAYLFWPKR RCPGAKYPKS LLSLPLVGSL PFLPRHGHMH NNFFKLQKKY 70 80 90 100 110 120 GPIYSVRMGT KTTVIVGHHQ LAKEVLIKKG KDFSGRPQVT TLDILSNNRK GIAFADYGAH 130 140 150 160 170 180 WQLHRRLAMA TFALFKDGDQ KLEKIICQEI STLCDMLATH NGQTIDISFP VFVAITNVIS 190 200 210 220 230 240 LICFNISYKN GDPELKIVHN YNEGIIDSLG KESLVDLFPW LKVFPNKTLE KLKRHVKTRN 250 260 270 280 290 300 DLLTKIFENY KEKFRSDSIT NMLDVLMQAK MNSDNGNAGP DQDSELLSDN HILTTIGDIF 310 320 330 340 350 360 GAGVETTTSV VKWIVAFLLH NPQVKKKLYE EIDQNVGFSR TPTISDRNRL LLLEATIREV 370 380 390 400 410 420 LRIRPVAPML IPHKANVDSS IGEFAVDKGT HVIINLWALH HNEKEWHQPD QFMPERFLNP 430 440 450 460 470 480 AGTQLISPSL SYLPFGAGPR SCIGEILARQ ELFLIMAWLL QRFDLEVPDD GQLPSLEGNP 490 500 KVVFLIDSFK VKIKVRQAWR EAQAEGST

References

[1]	"Molecular evolution of adrenarche: structural and functional analysis of p450c17 from four primate species." Arlt W., Martens J.W., Song M., Wang J.T., Auchus R.J., Miller W.L. Endocrinology 143:4665-4672(2002) [PubMed: 12446594] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	AF458331 mRNA. Translation: AAN86252.1.
3D structure databases
HSSP	HSSP built from PDB template 1DT6 based on UniProtKB P00179.
ModBase	Search...
Phylogenomic databases
HOVERGEN	Q8HYN0.
Enzyme and pathway databases
BRENDA	1.14.99.9. 74251.
Family and domain databases
InterPro	IPR001128. Cyt_P450. IPR017973. Cyt_P450_C. IPR017972. Cyt_P450_CS. IPR002401. Cyt_P450_E_grp-I. [Graphical view]
Gene3D	G3DSA:1.10.630.10. Cyt_P450. 1 hit.
PANTHER	PTHR19383. Cyt_P450. 1 hit.
Pfam	PF00067. p450. 1 hit. [Graphical view]
PRINTS	PR00463. EP450I. PR00385. P450.
PROSITE	PS00086. CYTOCHROME_P450. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CP17A_PAPCY

Accession

Primary (citable) accession number: Q8HYN0

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 21, 2003
Last sequence update:	March 1, 2003
Last modified:	October 13, 2009
This is version 43 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)