ExPASy logo ExPASy Home page Site Map Search ExPASy Contact us Swiss-Prot
Notice: This page will be replaced with www.uniprot.org. Please send us your feedback!
Search for

UniProtKB/Swiss-Prot entry P19099


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

Note: most headings are clickable, even if they don't appear as links. They link to the user manual or other documents.
Entry information
Entry name C11B2_HUMAN
Primary accession number P19099
Secondary accession number Q16726
Integrated into Swiss-Prot on November 1, 1990
Sequence was last modified on July 15, 1998 (Sequence version 3)
Annotations were last modified on    July 22, 2008 (Entry version 98)
Name and origin of the protein
Protein name Cytochrome P450 11B2, mitochondrial [Precursor]
Synonyms EC 1.14.15.4
EC 1.14.15.5
CYPXIB2
P-450Aldo
Aldosterone synthase
ALDOS
Aldosterone-synthesizing enzyme
Steroid 18-hydroxylase
P-450C18
Gene name
Name: CYP11B2
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
PubMed=2592361 [NCBI, ExPASy, EBI, Israel, Japan]
Mornet E., Dupont J., Vitek A., White P.C.;
"Characterization of two genes encoding human steroid 11 beta-hydroxylase (P-450(11) beta).";
J. Biol. Chem. 264:20961-20967(1989).
[2]
NUCLEOTIDE SEQUENCE [MRNA].
TISSUE=Adrenal gland;
DOI=10.1016/S0006-291X(05)81058-7; PubMed=2256920 [NCBI, ExPASy, EBI, Israel, Japan]
Kawamoto T., Mitsuuchi Y., Ohnishi T., Ichikawa Y., Yokoyama Y., Sumimoto H., Toda K., Miyahara K., Kuribayashi I., Nakao K., Hosoda K., Yamamoto Y., Imura H., Shizuta Y.;
"Cloning and expression of a cDNA for human cytochrome P-450aldo as related to primary aldosteronism.";
Biochem. Biophys. Res. Commun. 173:309-316(1990).
[3]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
TISSUE=Blood;
Kawamoto T., Miyahara K., Mitsuuchi Y., Ulick S., Shizuta Y.;
Submitted (JUN-1994) to the EMBL/GenBank/DDBJ databases.
[4]
VARIANTS CMO-2 DEFICIENCY TRP-181 AND ALA-386.
PubMed=1594605 [NCBI, ExPASy, EBI, Israel, Japan]
Pascoe L., Curnow K.M., Slutsker L., Roesler A., White P.C.;
"Mutations in the human CYP11B2 (aldosterone synthase) gene causing corticosterone methyloxidase II deficiency.";
Proc. Natl. Acad. Sci. U.S.A. 89:4996-5000(1992).
[5]
VARIANTS CMO-2 DEFICIENCY TRP-181 AND ALA-386.
DOI=10.1016/0006-291X(92)91827-D; PubMed=1346492 [NCBI, ExPASy, EBI, Israel, Japan]
Mitsuuchi Y., Kawamoto T., Naiki Y., Miyahara K., Toda K., Kuribayashi I., Orii T., Yasuda K., Miura K., Nakao K., Imura H., Ulick S., Shizuta Y.;
"Congenitally defective aldosterone biosynthesis in humans: the involvement of point mutations of the P-450C18 gene (CYP11B2) in CMO II deficient patients.";
Biochem. Biophys. Res. Commun. 182:974-979(1992).
[6]
ERRATUM.
Mitsuuchi Y., Kawamoto T., Naiki Y., Miyahara K., Toda K., Kuribayashi I., Orii T., Yasuda K., Miura K., Nakao K., Imura H., Ulick S., Shizuta Y.;
Biochem. Biophys. Res. Commun. 184:1529-1530(1992).
[7]
DISEASE.
DOI=10.1006/bbrc.1993.1128; PubMed=8439335 [NCBI, ExPASy, EBI, Israel, Japan]
Mitsuuchi Y., Kawamoto T., Miyahara K., Ulick S., Morton D.H., Naiki Y., Kuribayashi I., Toda K., Hara T., Orii T., Yasuda K., Miura K., Yamamoto Y., Imura H., Shizuta Y.;
"Congenitally defective aldosterone biosynthesis in humans: inactivation of the P-450(C18) gene (CYP11B2) due to nucleotide deletion in CMO I deficient patients.";
Biochem. Biophys. Res. Commun. 190:864-869(1993).
[8]
VARIANT CMO-1 DEFICIENCY PRO-461.
DOI=10.1006/bbrc.1997.6651; PubMed=9177280 [NCBI, ExPASy, EBI, Israel, Japan]
Nomoto S., Massa G., Mitani F., Ishimura Y., Miyahara K., Toda K., Nagano I., Yamashiro T., Ogoshi S., Fukata J., Onishi S., Hashimoto K., Doi Y., Imura H., Shizuta Y.;
"CMO I deficiency caused by a point mutation in exon 8 of the human CYP11B2 gene encoding steroid 18-hydroxylase (P450C18).";
Biochem. Biophys. Res. Commun. 234:382-385(1997).
[9]
VARIANT CMO-2 DEFICIENCY ILE-185.
DOI=10.1007/s004310050833; PubMed=9625333 [NCBI, ExPASy, EBI, Israel, Japan]
Peter M., Buenger K., Solyom J., Sippell W.G.;
"Mutation THR-185 ILE is associated with corticosterone methyl oxidase deficiency type II.";
Eur. J. Pediatr. 157:378-381(1998).
[10]
VARIANTS CMO-2 DEFICIENCY ASP-198 AND ALA-386.
DOI=10.1210/jc.83.11.4156; PubMed=9814506 [NCBI, ExPASy, EBI, Israel, Japan]
Portrat-Doyen S., Tourniaire J., Richard O., Mulatero P., Aupetit-Faisant B., Curnow K.M., Pascoe L., Morel Y.;
"Isolated aldosterone synthase deficiency caused by simultaneous E198D and V386A mutations in the CYP11B2 gene.";
J. Clin. Endocrinol. Metab. 83:4156-4161(1998).
[11]
VARIANT ARG-173.
PubMed=9931115 [NCBI, ExPASy, EBI, Israel, Japan]
Tamaki S., Iwai N., Tsujita Y., Kinoshita M.;
"Genetic polymorphism of CYP11B2 gene and hypertension in Japanese.";
Hypertension 33:266-270(1999).
[12]
VARIANTS THR-29; GLN-30; ARG-173; THR-248; SER-281; THR-339; ALA-386 AND SER-435.
DOI=10.1038/10290; PubMed=10391209 [NCBI, ExPASy, EBI, Israel, Japan]
Cargill M., Altshuler D., Ireland J., Sklar P., Ardlie K., Patil N., Shaw N., Lane C.R., Lim E.P., Kalyanaraman N., Nemesh J., Ziaugra L., Friedland L., Rolfe A., Warrington J., Lipshutz R., Daley G.Q., Lander E.S.;
"Characterization of single-nucleotide polymorphisms in coding regions of human genes.";
Nat. Genet. 22:231-238(1999).
[13]
ERRATUM.
Cargill M., Altshuler D., Ireland J., Sklar P., Ardlie K., Patil N., Shaw N., Lane C.R., Lim E.P., Kalyanaraman N., Nemesh J., Ziaugra L., Friedland L., Rolfe A., Warrington J., Lipshutz R., Daley G.Q., Lander E.S.;
Nat. Genet. 23:373-373(1999).
[14]
VARIANTS ARG-173; THR-248; SER-281; THR-339; ALA-386 AND SER-435.
DOI=10.1038/10297; PubMed=10391210 [NCBI, ExPASy, EBI, Israel, Japan]
Halushka M.K., Fan J.-B., Bentley K., Hsie L., Shen N., Weder A., Cooper R., Lipshutz R., Chakravarti A.;
"Patterns of single-nucleotide polymorphisms in candidate genes for blood-pressure homeostasis.";
Nat. Genet. 22:239-247(1999).
[15]
VARIANT CMO-1 DEFICIENCY ARG-LEU-140 INS.
DOI=10.1210/jc.86.3.1008; PubMed=11238478 [NCBI, ExPASy, EBI, Israel, Japan]
Kayes-Wandover K.M., Schindler R.E.L., Taylor H.C., White P.C.;
"Type 1 aldosterone synthase deficiency presenting in a middle-aged man.";
J. Clin. Endocrinol. Metab. 86:1008-1012(2001).
[16]
VARIANTS CMO-2 DEFICIENCY ILE-185 AND ALA-498.
DOI=10.1210/jc.2003-030353; PubMed=12788848 [NCBI, ExPASy, EBI, Israel, Japan]
Dunlop F.M., Crock P.A., Montalto J., Funder J.W., Curnow K.M.;
"A compound heterozygote case of type II aldosterone synthase deficiency.";
J. Clin. Endocrinol. Metab. 88:2518-2526(2003).
Comments
  • FUNCTION: Preferentially catalyzes the conversion of 11-deoxycorticosterone to aldosterone via corticosterone and 18-hydroxycorticosterone.
  • CATALYTIC ACTIVITY: A steroid + reduced adrenal ferredoxin + O2 = an 11-beta-hydroxysteroid + oxidized adrenal ferredoxin + H2O.
  • CATALYTIC ACTIVITY: Corticosterone + reduced adrenal ferredoxin + O2 = 18-hydroxycorticosterone + oxidized adrenal ferredoxin + H2O.
  • COFACTOR: Heme group (By similarity).
  • SUBCELLULAR LOCATION: Mitochondrion membrane.
  • DISEASE: Defects in CYP11B2 are the cause of corticosterone methyloxidase type 1 deficiency (CMO-1 deficiency) [MIM:203400]; also called aldosterone deficiency due to defect in 18-hydroxylase or aldosterone deficiency I. CMO-1 deficiency is an autosomal recessive disorder of aldosterone biosynthesis. There are two biochemically different forms of selective aldosterone deficiency be termed corticosterone methyloxidase (CMO) deficiency type 1 and type 2. In CMO-1 deficiency, aldosterone is undetectable in plasma, while its immediate precursor, 18-hydroxycorticosterone, is low or normal.
  • DISEASE: Defects in CYP11B2 are the cause of corticosterone methyloxidase type 2 deficiency (CMO-2 deficiency) [MIM:610600]. CMO-2 is an autosomal recessive disorder of aldosterone biosynthesis. In CMO-2 deficiency, aldosterone can be low or normal, but at the expense of increased secretion of 18-hydroxycorticosterone. Consequently, patients have a greatly increased ratio of 18-hydroxycorticosterone to aldosterone and a low ratio of corticosterone to 18-hydroxycorticosterone in serum.
  • DISEASE: An anti-Lepore-type fusion of the CYP11B2 and CYP11B1 genes is a cause of glucocorticoid-remediable aldosteronism (GRA) [MIM:103900].
  • SIMILARITY: Belongs to the cytochrome P450 family.
  • WEB RESOURCE: Name=GeneReviews; URL="http://www.genetests.org/query?gene=CYP11B2";.
  • WEB RESOURCE: Name=Wikipedia; Note=CYP11B2 entry; URL="http://en.wikipedia.org/wiki/CYP11B2";.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
M32881; AAA35741.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
M32864; AAA35741.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
M32880; AAA35741.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
X54741; CAA38539.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D13752; BAA02899.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR B34181; B34181.
RefSeq NP_000489.3; -.
UniGene Hs.632054
3D structure databases
HSSP P00189; 1SCC. [HSSP ENTRY / PDB]
ModBase P19099.
Enzyme and pathway databases
Reactome REACT_602; Lipid and lipoprotein metabolism.
Organism-specific databases
HGNC HGNC:2592; CYP11B2.
GenAtlas CYP11B2.
MIM 103900; phenotype. [NCBI / EBI]
124080; gene. [NCBI / EBI]
203400; phenotype. [NCBI / EBI]
610600; phenotype. [NCBI / EBI]
Orphanet 34145; Berger disease.
85142; Conn's syndrome.
403; Hyperaldosteronism, familial, type 1.
427; Hypoaldosteronism, familial.
PharmGKB PA134; -.
GeneCards P19099.
Gene expression databases
ArrayExpress P19099; -.
CleanEx HS_CYP11B2; -.
GermOnline ENSG00000179142; Homo sapiens.
Ontologies
GO
GO:0004507; Molecular function: steroid 11-beta-monooxygenase activity (traceable author statement from ProtInc).
GO:0006704; Biological process: glucocorticoid biosynthetic process (traceable author statement from ProtInc).
GO:0008217; Biological process: regulation of blood pressure (traceable author statement from ProtInc).
QuickGo view.
Family and domain databases
InterPro IPR001128; Cyt_P450.
IPR002399; Cyt_P450_mit.
Graphical view of domain structure.
Gene3D G3DSA:1.10.630.10; Cyt_P450; 1.
PANTHER PTHR19383; Cyt_P450; 1.
Pfam PF00067; p450; 1.
Pfam graphical view of domain structure.
PRINTS PR00408; MITP450.
PR00385; P450.
PROSITE PS00086; CYTOCHROME_P450; 1.
BLOCKS P19099.
Genome annotation databases
Ensembl ENSG00000179142; Homo sapiens. [Contig view]
GeneID 1585; -.
KEGG hsa:1585; -.
Phylogenomic databases
HOGENOM P19099; -.
HOVERGEN P19099; -.
Other
DrugBank DB00796; Candesartan.
DB01011; Metyrapone.
SOURCE CYP11B2; Homo sapiens.
ProtoNet P19099.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Disease mutation; Heme; Iron; Lipid metabolism; Membrane; Metal-binding; Mitochondrion; Monooxygenase; Oxidoreductase; Polymorphism; Steroid metabolism; Steroidogenesis; Transit peptide.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
TRANSIT   1    24  24     Mitochondrion. 
CHAIN   25   503  479     Cytochrome P450 11B2, mitochondrial. PRO_0000003597
METAL   450   450        Iron (heme axial ligand) (By similarity). 
VARIANT   29    29  1     A -> T (in dbSNP:rs6438 [NCBI]). VAR_014151 
VARIANT   30    30  1     R -> Q (in dbSNP:rs6441 [NCBI]). VAR_014152 
VARIANT   140   140  1     N -> NRL (in CMO-1 deficiency; the enzyme is inactive). VAR_018470
VARIANT   173   173  1     K -> R (in dbSNP:rs4539 [NCBI]). VAR_001266 
VARIANT   181   181  1     R -> W (in CMO-2 deficiency; reduces 18-hydroxylase and abolishes 18-oxidase activities; leaves 11 beta-hydroxylase activity intact). VAR_001267 
VARIANT   185   185  1     T -> I (in CMO-2 deficiency). VAR_018471 
VARIANT   198   198  1     E -> D (in CMO-2 deficiency). VAR_001268 
VARIANT   222   222  1     N -> T (in dbSNP:rs5308 [NCBI]). VAR_014643 
VARIANT   248   248  1     I -> T (in dbSNP:rs4547 [NCBI]). VAR_014153 
VARIANT   281   281  1     N -> S (in dbSNP:rs4537 [NCBI]). VAR_014154 
VARIANT   339   339  1     I -> T (in dbSNP:rs4544 [NCBI]). VAR_014155 
VARIANT   383   383  1     E -> V (in dbSNP:rs5312 [NCBI]). VAR_014644 
VARIANT   386   386  1     V -> A (in CMO-2 deficiency; small but consistent reduction in the production of 18-hydroxycorticosterone; dbSNP:rs4541 [NCBI]). VAR_001269 
VARIANT   403   403  1     V -> E (in dbSNP:rs5315 [NCBI]). VAR_014645 
VARIANT   435   435  1     G -> S (in dbSNP:rs4545 [NCBI]). VAR_014156 
VARIANT   461   461  1     L -> P (in CMO-1 deficiency; abolishes the 18-hydroxylase activity required for conversion of 11-deoxycorticosterone to aldosterone). VAR_018472 
VARIANT   487   487  1     F -> V (in dbSNP:rs5317 [NCBI]). VAR_014646 
VARIANT   498   498  1     T -> A (in CMO-2 deficiency). VAR_018473 
CONFLICT   17    17        S -> C (in Ref. 1; AAA35741). 
CONFLICT   55    55        I -> M (in Ref. 1; AAA35741). 
CONFLICT   119   119        Y -> I (in Ref. 1; AAA35741). 
CONFLICT   249   249        S -> R (in Ref. 2; CAA38539). 
CONFLICT   342   342        Q -> K (in Ref. 1; AAA35741). 
CONFLICT   438   438        F -> L (in Ref. 1; AAA35741). 
CONFLICT   470   470        H -> R (in Ref. 1; AAA35741). 
Sequence information
Length: 503 AA [This is the length of the unprocessed precursor] Molecular weight: 57560 Da [This is the MW of the unprocessed precursor] CRC64: 42BA671704CEE35D [This is a checksum on the sequence]
        10         20         30         40         50         60 
MALRAKAEVC VAAPWLSLQR ARALGTRAAR APRTVLPFEA MPQHPGNRWL RLLQIWREQG 

        70         80         90        100        110        120 
YEHLHLEMHQ TFQELGPIFR YNLGGPRMVC VMLPEDVEKL QQVDSLHPCR MILEPWVAYR 

       130        140        150        160        170        180 
QHRGHKCGVF LLNGPEWRFN RLRLNPDVLS PKAVQRFLPM VDAVARDFSQ ALKKKVLQNA 

       190        200        210        220        230        240 
RGSLTLDVQP SIFHYTIEAS NLALFGERLG LVGHSPSSAS LNFLHALEVM FKSTVQLMFM 

       250        260        270        280        290        300 
PRSLSRWISP KVWKEHFEAW DCIFQYGDNC IQKIYQELAF NRPQHYTGIV AELLLKAELS 

       310        320        330        340        350        360 
LEAIKANSME LTAGSVDTTA FPLLMTLFEL ARNPDVQQIL RQESLAAAAS ISEHPQKATT 

       370        380        390        400        410        420 
ELPLLRAALK ETLRLYPVGL FLERVVSSDL VLQNYHIPAG TLVQVFLYSL GRNAALFPRP 

       430        440        450        460        470        480 
ERYNPQRWLD IRGSGRNFHH VPFGFGMRQC LGRRLAEAEM LLLLHHVLKH FLVETLTQED 

       490        500 
IKMVYSFILR PGTSPLLTFR AIN 

P19099 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
Report form for errors/updates in this UniProtKB/Swiss-Prot entry

BLAST logo BLAST submission on ExPASy/SIB
or at NCBI (USA)
Tools Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
PROSITE logo ScanProsite, MotifScan SWISS-MODEL Submit a homology modeling request to SWISS-MODEL
NPSA logo NPSA Sequence analysis tools

ExPASy logo ExPASy Home page Site Map Search ExPASy Contact us Swiss-Prot
 Hosted by ca flag CBR Canada Mirror sites: Australia  Brazil  China  Korea  Switzerland
Notice: This page will be replaced with www.uniprot.org. Please send us your feedback!