Reviewed, UniProtKB/Swiss-Prot Q5RE72 (CP51A_PONAB)

Names and origin

Protein names

Recommended name:
    Cytochrome P450 51A1
    EC=1.14.13.70
Alternative name(s):
    CYPLI
    P450LI
    Sterol 14-alpha demethylase
    Lanosterol 14-alpha demethylase
      Short name=LDM
    P450-14DM
      Short name=P45014DM

Gene names

Name:

CYP51A1

Organism

Pongo abelii (Sumatran orangutan)

Taxonomic identifier

9601 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Pongo

Protein attributes

Sequence length	503 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Catalytic activity	Obtusifoliol + 3 O(2) + 3 NADPH = 4-alpha-methyl-5-alpha-ergosta-8,14,24(28)-trien-3-beta-ol + formate + 3 NADP(+) + 4 H(2)O.
Cofactor	Heme group By similarity.
Pathway	Steroid biosynthesis; zymosterol biosynthesis; zymosterol from lanosterol: step 1/6.
Subcellular location	Endoplasmic reticulum membraneBy similarity. Microsome membraneBy similarity.
Sequence similarities	Belongs to the cytochrome P450 family.

Ontologies

Keywords
Biological process	Cholesterol biosynthesis Lipid synthesis Steroid biosynthesis Sterol biosynthesis
Cellular component	Endoplasmic reticulum Membrane Microsome
Domain	Transmembrane
Ligand	Heme Iron Metal-binding NADP
Molecular function	Monooxygenase Oxidoreductase
Gene Ontology (GO)
Biological process	cholesterol biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	endoplasmic reticulum membrane Inferred from electronic annotation. Source: UniProtKB-SubCell integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW microsome Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	electron carrier activity Inferred from electronic annotation. Source: InterPro heme binding Inferred from electronic annotation. Source: InterPro iron ion binding Inferred from electronic annotation. Source: InterPro sterol 14-demethylase 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 – 503	503	Cytochrome P450 51A1		PRO_0000052000
Regions
	Transmembrane	24 – 44	21	Potential
Sites
	Metal binding	449	1	Iron (heme axial ligand) By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q5RE72-1 [UniParc]. Last modified September 13, 2005. Version 2. Checksum: 62B2C42DB67F738E	FASTA	503	56,845
	10 20 30 40 50 60 MMLLGLLQAG GSVLGQAMEK VTGGNLLSML LIACAFTLSL VYLFRLAVGH LVQLPAGAKS 70 80 90 100 110 120 PPYIFSPIPF LGHAIAFGKS PIEFLENAYE KYGPVFSFTM VGKTFTYLLG SDAAALLFNS 130 140 150 160 170 180 KNEDLNAEDV YSRLTTPVFG KGVAYDVPNP VFLEQKKMLK SGLNIAHFKQ HVSIIEKETK 190 200 210 220 230 240 EYFESWGESG EKNVFEALSE LIILTASHCL HGKEVRSQLN EKVAQLYADL DGGFSHAAWL 250 260 270 280 290 300 LPGWLPLPSF RRRDRAHREI KDIFYKAIQK RRQSQEKIDD ILQTLLDATY KDGRPLTDDE 310 320 330 340 350 360 VAGMLIGLLL AGQHTSSTTS AWMGFFLARD KTLQEKCYLE QKTVCGENLP PLTYDQLKDL 370 380 390 400 410 420 NLLDRCIKET LRLRPPIMIM MRMARTPQTV AGYTIPPGHQ VCVSPTVNQR LKDSWVERLD 430 440 450 460 470 480 FNPDRYLQDN PASGEKFAYV PFGAGRHRCI GENFAYVQIK TIWSTMLRLY EFDLIDGYFP 490 500 TVNYTTMIHT PENPVIRYKR RSK

References

[1]	The German cDNA consortium Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Heart.

Cross-references

Sequence databases
EMBLGenBankDDBJ	CR857665 mRNA. Translation: CAH89935.1. Different initiation.
RefSeq	NP_001124908.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	100171776.
Phylogenomic databases
HOVERGEN	Q5RE72.
Family and domain databases
InterPro	IPR001128. Cyt_P450. IPR002403. Cyt_P450_E_grp-IV. [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	PR00465. EP450IV. PR00385. P450.
PROSITE	PS00086. CYTOCHROME_P450. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CP51A_PONAB

Accession

Primary (citable) accession number: Q5RE72

Entry history

Integrated into UniProtKB/Swiss-Prot:	September 13, 2005
Last sequence update:	September 13, 2005
Last modified:	November 25, 2008
This is version 31 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)