Reviewed, UniProtKB/Swiss-Prot Q9GMC7 (CP17A_BISBI)

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
    Cytochrome P450-C17
      Short name=Cytochrome P450c17

Gene names

Name:	CYP17A1
Synonyms:	CYP17

Organism

Bison bison (American bison) (Bos bison)

Taxonomic identifier

9901 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Cetartiodactyla › Ruminantia › Pecora › Bovidae › Bovinae › Bison

Protein attributes

Sequence length	509 AA.
Sequence status	Complete.
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. Involved in sexual development during fetal life and at puberty 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 – 509	509	Steroid 17-alpha-hydroxylase/17,20 lyase		PRO_0000051925
Sites
	Metal binding	442	1	Iron (heme axial ligand) By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q9GMC7-1 [UniParc]. Last modified March 1, 2001. Version 1. Checksum: 434E2070528AA279	FASTA	509	57,247
	10 20 30 40 50 60 MWLLLAVFLL TLAYLFWPKT KHSGAKYPRS LPSLPLVGSL PFLPRRGQQH KNFFKLQEKY 70 80 90 100 110 120 GPIYSFRLGS KTTVMIGHHQ LAREVLLKKG KEFSGRPKVA TLDILSDNQK GIAFADHGAH 130 140 150 160 170 180 WQLHRKLALN AFALFKDGNL KLEKIINQEA NVLCDFLATQ HGEAIDLSEP LSLAVTNIIS 190 200 210 220 230 240 FICFNFSFKN EDPALKAIQN VNDGILEVLS KEVLLDIFPV LKIFPSKAME KMKGYVQTRN 250 260 270 280 290 300 ELLNEILEKC QENFSSDSIT NLLHILIQAK VNADNNNAGP DQDSKLLSSR HMLATIGDIF 310 320 330 340 350 360 GAGVETTTSV IKWIVAYLLH HPSLKKRIQD DIDQIIGFNR TPAISDRNRL VLLEATIREV 370 380 390 400 410 420 LRIRPVAPTL IPHKAVIDSS IGDLTIDKGT DVVVNLWALH HSEKEWQHPD LFMPERFLDP 430 440 450 460 470 480 TGTQLISPSL SYLPFGAGPR SCVGEMLARQ ELFLFMSRLL QRFNLEIPDD GKLPSLEGHA 490 500 SLVLQIKPFK VKIEVRQAWK EAQAEGSTP

References

[1]

"Molecular cloning and heterologous expression in E. coli of cytochrome P45017alpha. Comparison of structural and functional properties of substrate-specific cytochromes P450 from different species." Gilep A.A., Estabrook R.W., Usanov S.A. Biokhimiia 68:86-98(2003) [PubMed: 12693981] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Adrenal gland.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AF292565 mRNA. Translation: AAG02227.1.
3D structure databases
SMR	Q9GMC7. Positions 32-496.
ModBase	Search...
Phylogenomic databases
HOVERGEN	Q9GMC7.
Enzyme and pathway databases
BRENDA	1.14.99.9. 96351.
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_BISBI

Accession

Primary (citable) accession number: Q9GMC7

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 4, 2005
Last sequence update:	March 1, 2001
Last modified:	January 19, 2010
This is version 44 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)