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UniProtKB/Swiss-Prot entry O14521


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

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Entry information
Entry name DHSD_HUMAN
Primary accession number O14521
Secondary accession numbers A6ND90 B3KQQ8 Q53XW5 Q6IRW2
Integrated into Swiss-Prot on December 15, 1998
Sequence was last modified on January 1, 1998 (Sequence version 1)
Annotations were last modified on    June 16, 2009 (Entry version 102)
Name and origin of the protein
Protein name Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial [Precursor]
Synonyms CybS
Succinate-ubiquinone reductase membrane anchor subunit
QPs3
CII-4
Succinate dehydrogenase complex subunit D
Succinate-ubiquinone oxidoreductase cytochrome b small subunit
Gene name
Name: SDHD
Synonyms: SDH4
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 [MRNA].
TISSUE=Liver;
PubMed=9533030 [NCBI, ExPASy, EBI, Israel, Japan]
Hirawake H., Taniwaki M., Tamura A., Kojima S., Kita K.;
"Cytochrome b in human complex II (succinate-ubiquinone oxidoreductase): cDNA cloning of the components in liver mitochondria and chromosome assignment of the genes for the large (SDHC) and small (SDHD) subunits to 1q21 and 11q23.";
Cytogenet. Cell Genet. 79:132-138(1997).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
DOI=10.1016/S0005-2728(99)00071-7; PubMed=10482792 [NCBI, ExPASy, EBI, Israel, Japan]
Hirawake H., Taniwaki M., Tamura A., Amino H., Tomitsuka E., Kita K.;
"Characterization of the human SDHD gene encoding the small subunit of cytochrome b (cybS) in mitochondrial succinate-ubiquinone oxidoreductase.";
Biochim. Biophys. Acta 1412:295-300(1999).
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
DOI=10.1093/dnares/12.2.117; PubMed=16303743 [NCBI, ExPASy, EBI, Israel, Japan]
Otsuki T., Ota T., Nishikawa T., Hayashi K., Suzuki Y., Yamamoto J., Wakamatsu A., Kimura K., Sakamoto K., Hatano N., Kawai Y., Ishii S., Saito K., Kojima S., Sugiyama T., Ono T., Okano K., Yoshikawa Y., Aotsuka S., Sasaki N., Hattori A., Okumura K., Nagai K., Sugano S., Isogai T.;
"Signal sequence and keyword trap in silico for selection of full-length human cDNAs encoding secretion or membrane proteins from oligo-capped cDNA libraries.";
DNA Res. 12:117-126(2005).
[4]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A.;
"Cloning of human full-length CDSs in BD Creator(TM) system donor vector.";
Submitted (MAY-2003) to the EMBL/GenBank/DDBJ databases.
[5]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Ebert L., Schick M., Neubert P., Schatten R., Henze S., Korn B.;
"Cloning of human full open reading frames in Gateway(TM) system entry vector (pDONR201).";
Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
[6]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1038/nature04632; PubMed=16554811 [NCBI, ExPASy, EBI, Israel, Japan]
Taylor T.D., Noguchi H., Totoki Y., Toyoda A., Kuroki Y., Dewar K., Lloyd C., Itoh T., Takeda T., Kim D.-W., She X., Barlow K.F., Bloom T., Bruford E., Chang J.L., Cuomo C.A., Eichler E., FitzGerald M.G., Jaffe D.B., LaButti K., Nicol R., Park H.-S., Seaman C., Sougnez C., Yang X., Zimmer A.R., Zody M.C., Birren B.W., Nusbaum C., Fujiyama A., Hattori M., Rogers J., Lander E.S., Sakaki Y.;
"Human chromosome 11 DNA sequence and analysis including novel gene identification.";
Nature 440:497-500(2006).
[7]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R., Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., Hunkapiller M.W., Myers E.W., Venter J.C.;
Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
[8]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
TISSUE=Bone marrow, Brain, Lung, and Skeletal muscle;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[9]
IDENTIFICATION [LARGE SCALE ANALYSIS], AND MASS SPECTROMETRY.
Colinge J., Superti-Furga G., Bennett K.L.;
Submitted (OCT-2008) to UniProtKB.
[10]
VARIANT PHEOCHROMOCYTOMA LEU-81.
PubMed=11156372 [NCBI, ExPASy, EBI, Israel, Japan]
Gimm O., Armanios M., Dziema H., Neumann H.P.H., Eng C.;
"Somatic and occult germ-line mutations in SDHD, a mitochondrial complex II gene, in nonfamilial pheochromocytoma.";
Cancer Res. 60:6822-6825(2000).
[11]
VARIANTS PGL1 LEU-81; TYR-92 AND LEU-102.
DOI=10.1126/science.287.5454.848; PubMed=10657297 [NCBI, ExPASy, EBI, Israel, Japan]
Baysal B.E., Ferrell R.E., Willett-Brozick J.E., Lawrence E.C., Myssiorek D., Bosch A., van der Mey A., Taschner P.E.M., Rubinstein W.S., Myers E.N., Richard C.W. III, Cornelisse C.J., Devilee P., Devlin B.;
"Mutations in SDHD, a mitochondrial complex II gene, in hereditary paraganglioma.";
Science 287:848-851(2000).
[12]
VARIANT PGL1 CYS-114.
DOI=10.1002/ajmg.1270; PubMed=11343322 [NCBI, ExPASy, EBI, Israel, Japan]
Milunsky J.M., Maher T.A., Michels V.V., Milunsky A.;
"Novel mutations and the emergence of a common mutation in the SDHD gene causing familial paraganglioma.";
Am. J. Med. Genet. 100:311-314(2001).
[13]
VARIANT PGL1 TYR-93 DEL.
DOI=10.1002/gcc.1142; PubMed=11391796 [NCBI, ExPASy, EBI, Israel, Japan]
Badenhop R.F., Cherian S., Lord R.S.A., Baysal B.E., Taschner P.E.M., Schofield P.R.;
"Novel mutations in the SDHD gene in pedigrees with familial carotid body paraganglioma and sensorineural hearing loss.";
Genes Chromosomes Cancer 31:255-263(2001).
[14]
VARIANTS PGL1 TYR-92 AND PRO-139.
DOI=10.1002/gcc.1144; PubMed=11391798 [NCBI, ExPASy, EBI, Israel, Japan]
Taschner P.E.M., Jansen J.C., Baysal B.E., Bosch A., Rosenberg E.H., Broecker-Vriends A.H.J.T., van Der Mey A.G.L., van Ommen G.-J.B., Cornelisse C.J., Devilee P.;
"Nearly all hereditary paragangliomas in the Netherlands are caused by two founder mutations in the SDHD gene.";
Genes Chromosomes Cancer 31:274-281(2001).
[15]
VARIANT SER-12.
DOI=10.1038/sj.onc.1204579; PubMed=11526495 [NCBI, ExPASy, EBI, Israel, Japan]
Masuoka J., Brandner S., Paulus W., Soffer D., Vital A., Chimelli L., Jouvet A., Yonekawa Y., Kleihues P., Ohgaki H.;
"Germline SDHD mutation in paraganglioma of the spinal cord.";
Oncogene 20:5084-5086(2001).
[16]
INVOLVEMENT IN INTESTINAL CARCINOID TUMOR, AND VARIANTS SER-12 AND ARG-50.
DOI=10.1002/gcc.10081; PubMed=12007193 [NCBI, ExPASy, EBI, Israel, Japan]
Kytoelae S., Nord B., Elder E.E., Carling T., Kjellman M., Cedermark B., Juhlin C., Hoeoeg A., Isola J., Larsson C.;
"Alterations of the SDHD gene locus in midgut carcinoids, Merkel cell carcinomas, pheochromocytomas, and abdominal paragangliomas.";
Genes Chromosomes Cancer 34:325-332(2002).
[17]
VARIANTS SER-12 AND ARG-50.
PubMed=14500403 [NCBI, ExPASy, EBI, Israel, Japan]
Gimenez-Roqueplo A.-P., Favier J., Rustin P., Rieubland C., Crespin M., Nau V., Khau Van Kien P., Corvol P., Plouin P.-F., Jeunemaitre X.;
"Mutations in the SDHB gene are associated with extra-adrenal and/or malignant phaeochromocytomas.";
Cancer Res. 63:5615-5621(2003).
[18]
VARIANT PHEOCHROMOCYTOMA TYR-92.
DOI=10.1056/NEJMoa020152; PubMed=12000816 [NCBI, ExPASy, EBI, Israel, Japan]
The Freiburg-Warsaw-Columbus pheochromocytoma study group;
Neumann H.P.H., Bausch B., McWhinney S.R., Bender B.U., Gimm O., Franke G., Schipper J., Klisch J., Altehoefer C., Zerres K., Januszewicz A., Smith W.M., Munk R., Manz T., Glaesker S., Apel T.W., Treier M., Reineke M., Walz M.K., Hoang-Vu C., Brauckhoff M., Klein-Franke A., Klose P., Schmidt H., Maier-Woelfle M., Peczkowska M., Szmigielski C., Eng C.;
"Germ-line mutations in nonsyndromic pheochromocytoma.";
N. Engl. J. Med. 346:1459-1466(2002).
[19]
DISCUSSION OF PATHOGENIC ROLE OF VARIANTS SER-12 AND ARG-50.
DOI=10.1002/gcc.10212; PubMed=12696072 [NCBI, ExPASy, EBI, Israel, Japan]
Cascon A., Ruiz-Llorente S., Cebrian A., Leton R., Telleria D., Benitez J., Robledo M.;
"G12S and H50R variations are polymorphisms in the SDHD gene.";
Genes Chromosomes Cancer 37:220-221(2003).
[20]
VARIANTS PLG1 LEU-81; CYS-114 AND VAL-148, AND VARIANT PHEOCHROMOCYTOMA TYR-92.
DOI=10.1001/jama.292.8.943; PubMed=15328326 [NCBI, ExPASy, EBI, Israel, Japan]
Neumann H.P.H., Pawlu C., Peczkowska M., Bausch B., McWhinney S.R., Muresan M., Buchta M., Franke G., Klisch J., Bley T.A., Hoegerle S., Boedeker C.C., Opocher G., Schipper J., Januszewicz A., Eng C.;
"Distinct clinical features of paraganglioma syndromes associated with SDHB and SDHD gene mutations.";
JAMA 292:943-951(2004).
[21]
ERRATUM.
Neumann H.P.H., Pawlu C., Peczkowska M., Bausch B., McWhinney S.R., Muresan M., Buchta M., Franke G., Klisch J., Bley T.A., Hoegerle S., Boedeker C.C., Opocher G., Schipper J., Januszewicz A., Eng C.;
JAMA 292:1686-1686(2004).
[22]
VARIANT SER-12.
DOI=10.1111/j..2004.00174.x; PubMed=15032977 [NCBI, ExPASy, EBI, Israel, Japan]
Leube B., Huber R., Goecke T.O., Sandmann W., Royer-Pokora B.;
"SDHD mutation analysis in seven German patients with sporadic carotid body paraganglioma: one novel mutation, no Dutch founder mutation and further evidence that G12S is a polymorphism.";
Clin. Genet. 65:61-63(2004).
[23]
INVOLVEMENT IN PARAGANGLIOMA AND GASTRIC STROMAL SARCOMA.
DOI=10.1056/NEJMc071191; PubMed=17804857 [NCBI, ExPASy, EBI, Israel, Japan]
McWhinney S.R., Pasini B., Stratakis C.A.;
"Familial gastrointestinal stromal tumors and germ-line mutations.";
N. Engl. J. Med. 357:1054-1056(2007).
[24]
VARIANTS SER-12; ARG-50 AND ASN-145, CHARACTERIZATION OF VARIANTS SER-12; ARG-50 AND ASN-145, AND INVOLVEMENT IN COWDEN-LIKE DISEASE.
DOI=10.1016/j.ajhg.2008.07.011; PubMed=18678321 [NCBI, ExPASy, EBI, Israel, Japan]
Ni Y., Zbuk K.M., Sadler T., Patocs A., Lobo G., Edelman E., Platzer P., Orloff M.S., Waite K.A., Eng C.;
"Germline mutations and variants in the succinate dehydrogenase genes in Cowden and Cowden-like syndromes.";
Am. J. Hum. Genet. 83:261-268(2008).
[25]
VARIANT [LARGE SCALE ANALYSIS] SER-12.
DOI=10.1038/nature07485; PubMed=18987736 [NCBI, ExPASy, EBI, Israel, Japan]
Ley T.J., Mardis E.R., Ding L., Fulton B., McLellan M.D., Chen K., Dooling D., Dunford-Shore B.H., McGrath S., Hickenbotham M., Cook L., Abbott R., Larson D.E., Koboldt D.C., Pohl C., Smith S., Hawkins A., Abbott S., Locke D., Hillier L.W., Miner T., Fulton L., Magrini V., Wylie T., Glasscock J., Conyers J., Sander N., Shi X., Osborne J.R., Minx P., Gordon D., Chinwalla A., Zhao Y., Ries R.E., Payton J.E., Westervelt P., Tomasson M.H., Watson M., Baty J., Ivanovich J., Heath S., Shannon W.D., Nagarajan R., Walter M.J., Link D.C., Graubert T.A., DiPersio J.F., Wilson R.K.;
"DNA sequencing of a cytogenetically normal acute myeloid leukaemia genome.";
Nature 456:66-72(2008).
Comments
  • FUNCTION: Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q) (By similarity).
  • PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle.
  • SUBUNIT: Component of complex II composed of four subunits: the flavoprotein (FP) SDHA, iron-sulfur protein (IP) SDHB, and a cytochrome b560 composed of SDHC and SDHD.
  • SUBCELLULAR LOCATION: Mitochondrion inner membrane; Multi-pass membrane protein.
  • DISEASE: Defects in SDHD are a cause of hereditary paraganglioma type 1 (PGL1) [MIM:168000]; also known as familial non-chromaffin paraganglioma 1. Paraganglioma refers to rare and mostly benign tumors that arise from any component of the neuroendocrine system. PGL1 is a rare autosomal dominant disorder which is characterized by the development of mostly benign, highly vascular, slowly growing tumors in the head and neck. In the head and neck region, the carotid body is the largest of all paraganglia and is also the most common site of the tumors. Penetrance of PLG1 is incomplete when the disease is transmitted through fathers. No disease phenotype is transmitted maternally.
  • DISEASE: Defects in SDHD are a cause of pheochromocytoma [MIM:171300]. The pheochromocytomas are catecholamine-producing, chromaffin tumors that arise in the adrenal medulla in 90% of cases. In the remaining 10% of cases, they develop in extra-adrenal sympathetic ganglia and may be referred to as "paraganglioma." Pheochromocytoma usually presents with hypertension. Approximately 10% of pheochromocytoma is hereditary. Although pheochromocytoma susceptibility may be associated with germline mutations in the tumor-suppressor genes VHL and NF1 and in the proto-oncogene RET, the genetic basis for most cases of non-syndromic familial pheochromocytoma is unknown.
  • DISEASE: Defects in SDHD are involved in intestinal carcinoid tumor [MIM:114900]. A carcinoid tumor is a yellow circumscribed tumor arising from enterochromaffin cells, in the small intestine.
  • DISEASE: Defects in SDHD are a cause of paraganglioma and gastric stromal sarcoma [MIM:606864]; also called Carney-Stratakis syndrome. Gastrointestinal stromal tumors may be sporadic or inherited in an autosomal dominant manner, alone or as a component of a syndrome associated with other tumors, such as in the context of neurofibromatosis type 1 (NF1). Patients have both gastrointestinal stromal tumors and paragangliomas. Susceptibility to the tumors was inherited in an apparently autosomal dominant manner, with incomplete penetrance.
  • DISEASE: Defects in SDHD are a cause of Cowden-like syndrome [MIM:612359]. Cowden-like syndrome is a cancer predisposition syndrome associated with elevated risk for tumors of the breast, thyroid, kidney and uterus.
  • SIMILARITY: Belongs to the CybS family.
  • WEB RESOURCE: Name=Atlas of Genetics and Cytogenetics in Oncology and Haematology; URL="http://atlasgeneticsoncology.org/Genes/SDHDID390.html";.
  • WEB RESOURCE: Name=GeneReviews; URL="http://www.genetests.org/query?gene=SDHD";.
  • WEB RESOURCE: Name=Wikipedia; Note=SDHD entry; URL="http://en.wikipedia.org/wiki/SDHD";.
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
AB006202; BAA22054.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AB026906; BAA81889.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK075360; BAG52120.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BT007238; AAP35902.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
CR456932; CAG33213.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AP002007; -; NOT_ANNOTATED_CDS; Genomic_DNA.[EMBL / GenBank / DDBJ]
CH471065; EAW67181.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC005263; AAH05263.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC009574; AAH09574.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC012603; AAH12603.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC015188; AAH15188.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC015992; AAH15992.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC022350; AAH22350.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC070307; AAH70307.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC071755; AAH71755.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC071756; AAH71756.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
IPI IPI00297325; -.
RefSeq NP_002993.1; -.
UniGene Hs.356270
3D structure databases
SMR O14521; 59-159.
ModBase O14521.
Enzyme and pathway databases
Reactome REACT_6305; Electron Transport Chain.
Organism-specific databases
GeneCards GC11P111462; -.
GC11P111463; -.
H-InvDB HIX0010122; -.
HIX0029526; -.
HIX0057022; -.
HGNC HGNC:10683; SDHD.
GenAtlas SDHD.
MIM 114900; phenotype. [NCBI / EBI]
168000; phenotype. [NCBI / EBI]
171300; phenotype. [NCBI / EBI]
602690; gene. [NCBI / EBI]
606864; phenotype. [NCBI / EBI]
612359; phenotype. [NCBI / EBI]
Orphanet 97286; Carney-Stratakis syndrome.
201; Cowden syndrome.
877; Endocrine tumor.
29072; Hereditary pheochromocytoma-paraganglioma syndrome.
717; Pheochromocytoma and secreting paraganglioma.
PharmGKB PA35608; -.
Gene expression databases
Bgee O14521; -.
CleanEx HS_SDHD; -.
GermOnline ENSG00000204370; Homo sapiens.
Ontologies
GO
GO:0016021; Cellular component: integral to membrane (inferred from electronic annotation from UniProtKB-KW).
GO:0005743; Cellular component: mitochondrial inner membrane (inferred from direct assay from UniProtKB).
GO:0009055; Molecular function: electron carrier activity (traceable author statement from UniProtKB).
GO:0020037; Molecular function: heme binding (inferred from electronic annotation from InterPro).
GO:0000104; Molecular function: succinate dehydrogenase activity (inferred from direct assay from UniProtKB).
GO:0022900; Biological process: electron transport chain (inferred from electronic annotation from UniProtKB-KW).
GO:0006810; Biological process: transport (inferred from electronic annotation from UniProtKB-KW).
GO:0006099; Biological process: tricarboxylic acid cycle (inferred from direct assay from UniProtKB).
QuickGo view.
Family and domain databases
InterPro IPR007992; Cyt_b_succ_DH_CybS.
Graphical view of domain structure.
PANTHER PTHR13337; CybS; 1.
Pfam PF05328; CybS; 1.
Pfam graphical view of domain structure.
Proteomic databases
PRIDE O14521; -.
Genome annotation databases
Ensembl ENSG00000204370; Homo sapiens. [Contig view]
GeneID 6392; -.
KEGG hsa:6392; -.
Phylogenomic databases
HOGENOM O14521; -.
HOVERGEN O14521; -.
OMA O14521; HWGLGQV.
Other
DrugBank DB00139; Succinic acid.
NextBio 24838; -.
SOURCE SDHD; Homo sapiens.
ProtoNet O14521.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Disease mutation; Electron transport; Heme; Iron; Membrane; Metal-binding; Mitochondrion; Mitochondrion inner membrane; Polymorphism; Transit peptide; Transmembrane; Transport; Tricarboxylic acid cycle.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
TRANSIT   1    56  56     Mitochondrion (Potential). 
CHAIN   57   159  103     Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial. PRO_0000006487
TOPO_DOM   57    63  7     Mitochondrial matrix (By similarity). 
TRANSMEM   64    85  22     By similarity. 
TOPO_DOM   86    90  5     Mitochondrial intermembrane (By similarity). 
TRANSMEM   91   111  21     By similarity. 
TOPO_DOM   112   120  9     Mitochondrial matrix (By similarity). 
TRANSMEM   121   142  22     By similarity. 
TOPO_DOM   143   159  17     Mitochondrial intermembrane (By similarity). 
METAL   102   102        Iron (heme axial ligand); shared with SDHC (By similarity). 
BINDING   114   114        Ubiquinone; shared with IP/SDHB (By similarity). 
VARIANT   12    12  1     G -> S (polymorphism that may increase susceptibility for developing pheochromocytoma, paraganglioma, intestinal carcinoid tumor and breast, renal and uterus carcinoma; associated with features of Cowden-like syndrome; associated with increased manganese superoxide dismutase expression; associated with increased reactive oxygen species; associated with 1.9-fold increase in both AKT and MAPK expression; dbSNP:rs34677591 [NCBI]). VAR_017870 
VARIANT   50    50  1     H -> R (polymorphism that may increase susceptibility for developing paraganglioma, breast and tyroid carcinoma; may be involved in somatic Merkel cell carcinoma; associated with features of Cowden-like syndrome; associated with increased manganese superoxide dismutase expression; associated with increased reactive oxygen species; associated with a 2.0-fold increase in AKT expression and a 1.7-fold increase in MAPK expression; dbSNP:rs11214077 [NCBI]). VAR_017871 
VARIANT   81    81  1     P -> L (in PGL1 and pheochromocytoma). VAR_010038 [3D]
VARIANT   92    92  1     D -> Y (in PGL1 and pheochromocytoma). VAR_010039 [3D]
VARIANT   93    93  1     Missing (in PGL1). VAR_018519
VARIANT   102   102  1     H -> L (in PGL1). VAR_010040 [3D]
VARIANT   114   114  1     Y -> C (in PGL1). VAR_017872 [3D]
VARIANT   139   139  1     L -> P (in PGL1). VAR_017873 [3D]
VARIANT   145   145  1     H -> N (found in an individual with features of Cowden-like syndrome; associated with increased manganese superoxide dismutase expression; asociated with normal reactive oxygen species; associated with no change in AKT expression but a 1.2-fold increase of MAPK expression). VAR_054384 [3D]
VARIANT   148   148  1     G -> V (in PLG1). VAR_054385 [3D]
CONFLICT   74    74        V -> F (in Ref. 8; AAH70307). 
Sequence information
Length: 159 AA [This is the length of the unprocessed precursor] Molecular weight: 17043 Da [This is the MW of the unprocessed precursor] CRC64: 6B1AA94831C8C3B6 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MAVLWRLSAV CGALGGRALL LRTPVVRPAH ISAFLQDRPI PEWCGVQHIH LSPSHHSGSK 

        70         80         90        100        110        120 
AASLHWTSER VVSVLLLGLL PAAYLNPCSA MDYSLAAALT LHGHWGLGQV VTDYVHGDAL 

       130        140        150 
QKAAKAGLLA LSALTFAGLC YFNYHDVGIC KAVAMLWKL 

O14521 in FASTA format

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