Reviewed,
UniProtKB/Swiss-Prot O95255 (MRP6_HUMAN)
Last modified
June 16, 2009.
Version 105.
History...
Clusters with 100%,
90%,
50% identity |
Documents (5) |
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Names and origin
| Protein names | Recommended name: Multidrug resistance-associated protein 6 Alternative name(s): ATP-binding cassette sub-family C member 6 Anthracycline resistance-associated protein Multi-specific organic anion transporter E Short name=MOAT-E | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 1503 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | May participate directly in the active transport of drugs into subcellular organelles or influence drug distribution indirectly. Transports glutathione conjugates as leukotriene-c4 (LTC4) and N-ethylmaleimide S-glutathione (NEM-GS). Ref.4 |
| Subcellular location | Membrane; Multi-pass membrane protein By similarity. |
| Tissue specificity | Expressed in kidney and liver. Very low expression in other tissues. |
| Involvement in disease | Defects in ABCC6 are the cause of pseudoxanthoma elasticum (PXE) [MIM:264800]. PXE is a disorder characterized by calcification of elastic fibers in skin, arteries and retina that results in dermal lesions with associated laxity and loss of elasticity, arterial insufficiency and retinal hemorrhages leading to macular degeneration. PXE is caused in the overwhelming majority of cases by homozygous or compound heterozygous mutations in the ABCC6 gene (autosomal recessive PXE). Individuals carrying heterozygous mutations express limited manifestations of the pseudoxanthoma elasticum phenotype (autosomal dominant PXE). Ref.4 Ref.5 Ref.9 Ref.10 Ref.11 Ref.12 Ref.13 |
| Sequence similarities | Belongs to the ABC transporter family. Conjugate transporter (TC 3.A.1.208) subfamily. [View classification] Contains 2 ABC transmembrane type-1 domains. Contains 2 ABC transporter domains. |
| Sequence caution | The sequence AAC15785.1 differs from that shown. Reason: Erroneous gene model prediction. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Sensory transduction Transport Vision |
| Cellular component | Membrane |
| Coding sequence diversity | Polymorphism |
| Disease | Disease mutation |
| Domain | Repeat Transmembrane |
| Ligand | ATP-binding Nucleotide-binding |
| PTM | Glycoprotein Phosphoprotein |
| Gene Ontology (GO) | |
| Biological process | response to drug Traceable author statement. Source: ProtInc transportTraceable author statement. Source: ProtInc visual perceptionInferred from electronic annotation. Source: UniProtKB-KW |
| Cellular component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW plasma membrane Ref.10Traceable author statement. Source: ProtInc |
| Molecular function | ATP binding Traceable author statement. Source: ProtInc ATPase activity, coupled to transmembrane movement of substancesTraceable author statement. Source: ProtInc |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1503 | 1503 | Multidrug resistance-associated protein 6 | PRO_0000093366 | |||||
Regions | |||||||||
| Topological domain | 1 – 31 | 31 | Extracellular By similarity | ||||||
| Transmembrane | 32 – 52 | 21 | 1 By similarity | ||||||
| Topological domain | 53 – 72 | 20 | Cytoplasmic By similarity | ||||||
| Transmembrane | 73 – 93 | 21 | 2 By similarity | ||||||
| Topological domain | 94 – 98 | 5 | Extracellular By similarity | ||||||
| Transmembrane | 99 – 119 | 21 | 3 By similarity | ||||||
| Topological domain | 120 – 131 | 12 | Cytoplasmic By similarity | ||||||
| Transmembrane | 132 – 149 | 18 | 4 By similarity | ||||||
| Topological domain | 150 – 167 | 18 | Extracellular By similarity | ||||||
| Transmembrane | 168 – 188 | 21 | 5 By similarity | ||||||
| Topological domain | 189 – 302 | 114 | Cytoplasmic By similarity | ||||||
| Transmembrane | 303 – 323 | 21 | 6 By similarity | ||||||
| Topological domain | 324 – 349 | 26 | Extracellular By similarity | ||||||
| Transmembrane | 350 – 370 | 21 | 7 By similarity | ||||||
| Topological domain | 371 – 426 | 56 | Cytoplasmic By similarity | ||||||
| Transmembrane | 427 – 447 | 21 | 8 By similarity | ||||||
| Topological domain | 448 – 450 | 3 | Extracellular By similarity | ||||||
| Transmembrane | 451 – 471 | 21 | 9 By similarity | ||||||
| Topological domain | 472 – 533 | 62 | Cytoplasmic By similarity | ||||||
| Transmembrane | 534 – 554 | 21 | 10 By similarity | ||||||
| Topological domain | 555 – 575 | 21 | Extracellular By similarity | ||||||
| Transmembrane | 576 – 596 | 21 | 11 By similarity | ||||||
| Topological domain | 597 – 939 | 343 | Cytoplasmic By similarity | ||||||
| Transmembrane | 940 – 960 | 21 | 12 By similarity | ||||||
| Topological domain | 961 – 997 | 37 | Extracellular By similarity | ||||||
| Transmembrane | 998 – 1018 | 21 | 13 By similarity | ||||||
| Topological domain | 1019 – 1061 | 43 | Cytoplasmic By similarity | ||||||
| Transmembrane | 1062 – 1082 | 21 | 14 By similarity | ||||||
| Topological domain | 1083 | 1 | Extracellular By similarity | ||||||
| Transmembrane | 1084 – 1104 | 21 | 15 By similarity | ||||||
| Topological domain | 1105 – 1175 | 71 | Cytoplasmic By similarity | ||||||
| Transmembrane | 1176 – 1196 | 21 | 16 By similarity | ||||||
| Topological domain | 1197 – 1198 | 2 | Extracellular By similarity | ||||||
| Transmembrane | 1199 – 1219 | 21 | 17 By similarity | ||||||
| Topological domain | 1220 – 1503 | 284 | Cytoplasmic By similarity | ||||||
| Domain | 311 – 593 | 283 | ABC transmembrane type-1 1 | ||||||
| Domain | 629 – 853 | 225 | ABC transporter 1 | ||||||
| Domain | 947 – 1228 | 282 | ABC transmembrane type-1 2 | ||||||
| Domain | 1265 – 1499 | 235 | ABC transporter 2 | ||||||
| Nucleotide binding | 663 – 670 | 8 | ATP 1 Potential | ||||||
| Nucleotide binding | 1299 – 1306 | 8 | ATP 2 Potential | ||||||
Amino acid modifications | |||||||||
| Modified residue | 244 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 902 | 1 | Phosphoserine Ref.6 | ||||||
| Glycosylation | 15 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Natural variant | 60 – 62 | 3 | Missing in PXE; autosomal recessive. | VAR_013363 | |||||
| Natural variant | 61 | 1 | G → D Ref.12 | VAR_013364 | |||||
| Natural variant | 64 | 1 | W → R Ref.8 | VAR_013365 | |||||
| Natural variant | 207 | 1 | G → R Ref.12 | VAR_013366 | |||||
| Natural variant | 265 | 1 | R → G Ref.12 Ref.13 | VAR_013367 | |||||
| Natural variant | 281 | 1 | K → E: dbSNP rs4780606. Ref.12 | VAR_013368 | |||||
| Natural variant | 319 | 1 | I → V Ref.12 | VAR_013369 | |||||
| Natural variant | 364 | 1 | T → R in PXE; autosomal recessive. Ref.13 | VAR_013370 | |||||
| Natural variant | 411 | 1 | N → K in PXE; autosomal dominant. Ref.12 | VAR_013371 | |||||
| Natural variant | 455 | 1 | A → P in PXE; autosomal dominant. Ref.5 | VAR_013372 | |||||
| Natural variant | 497 | 1 | N → K Ref.12 | VAR_013373 | |||||
| Natural variant | 518 | 1 | R → Q in PXE. Ref.12 | VAR_013374 | |||||
| Natural variant | 568 | 1 | F → S in PXE; autosomal dominant. Ref.12 | VAR_013375 | |||||
| Natural variant | 614 | 1 | V → A: dbSNP rs12931472. Ref.10 Ref.12 Ref.14 | VAR_011490 | |||||
| Natural variant | 632 | 1 | H → Q: dbSNP rs8058694. Ref.9 Ref.12 Ref.14 | VAR_013376 | |||||
| Natural variant | 665 | 1 | V → A: dbSNP rs4341770. | VAR_055477 | |||||
| Natural variant | 673 | 1 | L → P in PXE; autosomal dominant. Ref.12 | VAR_013377 | |||||
| Natural variant | 765 | 1 | R → Q in PXE; autosomal dominant. Ref.12 | VAR_013378 | |||||
| Natural variant | 953 | 1 | L → H Ref.12 | VAR_013379 | |||||
| Natural variant | 1114 | 1 | R → P in PXE; autosomal recessive. Ref.10 Ref.12 | VAR_011491 | |||||
| Natural variant | 1121 | 1 | S → W in PXE; autosomal dominant. Ref.12 | VAR_013380 | |||||
| Natural variant | 1138 | 1 | R → P in PXE; autosomal dominant. Ref.10 Ref.11 Ref.12 | VAR_013381 | |||||
| Natural variant | 1138 | 1 | R → Q in PXE; autosomal recessive. Ref.10 Ref.11 Ref.12 | VAR_011492 | |||||
| Natural variant | 1138 | 1 | R → W in PXE; autosomal recessive. Ref.10 Ref.11 Ref.12 | VAR_011493 | |||||
| Natural variant | 1203 | 1 | G → D in PXE; autosomal dominant. Ref.12 | VAR_013382 | |||||
| Natural variant | 1241 | 1 | W → C Ref.12 | VAR_013383 | |||||
| Natural variant | 1268 | 1 | R → Q Associated with lower plasma triglycerides and higher plasma HDL cholesterol. dbSNP rs2238472. Ref.11 Ref.12 Ref.14 Ref.7 Ref.15 | VAR_011494 | |||||
| Natural variant | 1298 | 1 | V → F in PXE; autosomal dominant; abolishes LTC4 and NEM-GS transport. Ref.4 Ref.12 | VAR_013384 | |||||
| Natural variant | 1301 | 1 | T → I in PXE; autosomal dominant. Ref.12 | VAR_013385 | |||||
| Natural variant | 1302 | 1 | G → R in PXE; autosomal dominant; abolishes LTC4 and NEM-GS transport. Ref.4 Ref.12 | VAR_013386 | |||||
| Natural variant | 1303 | 1 | A → P in PXE; autosomal dominant. Ref.12 | VAR_013387 | |||||
| Natural variant | 1314 | 1 | R → Q in PXE; autosomal dominant. Ref.10 Ref.12 | VAR_013388 | |||||
| Natural variant | 1314 | 1 | R → W in PXE; autosomal recessive. Ref.10 Ref.12 | VAR_011495 | |||||
| Natural variant | 1321 | 1 | G → S in PXE; autosomal dominant; abolishes LTC4 and NEM-GS transport. Ref.4 Ref.12 | VAR_013389 | |||||
| Natural variant | 1339 | 1 | R → C in PXE; autosomal recessive. Ref.9 Ref.12 | VAR_013390 | |||||
| Natural variant | 1347 | 1 | Q → H in PXE; autosomal dominant. Ref.12 | VAR_013391 | |||||
| Natural variant | 1354 | 1 | G → R in PXE; autosomal recessive. Ref.13 | VAR_013392 | |||||
| Natural variant | 1361 | 1 | D → N in PXE; autosomal dominant. Ref.12 | VAR_013393 | |||||
| Natural variant | 1424 | 1 | I → T in PXE; autosomal dominant. Ref.12 | VAR_013394 | |||||
Experimental info | |||||||||
| Sequence conflict | 74 – 115 | 42 | Missing Ref.2 | ||||||
| Sequence conflict | 377 | 1 | L → P in AAD51293. Ref.3 | ||||||
| Sequence conflict | 1274 | 1 | Y → C in AAD51293. Ref.3 | ||||||
| Sequence conflict | 1455 | 1 | L → P in AAD51293. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Expression of human MRP6, a homologue of the multidrug resistance protein gene MRP1, in tissues and cancer cells." Kool M., van der Linden M., de Haas M., Baas F., Borst P. Cancer Res. 59:175-182(1999) [PubMed: 9892204] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [2] | "Genome duplications and other features in 12 Mb of DNA sequence from human chromosome 16p and 16q." Loftus B.J., Kim U.-J., Sneddon V.P., Kalush F., Brandon R., Fuhrmann J., Mason T., Crosby M.L., Barnstead M., Cronin L., Mays A.D., Cao Y., Xu R.X., Kang H.-L., Mitchell S., Eichler E.E., Harris P.C., Venter J.C., Adams M.D. Genomics 60:295-308(1999) [PubMed: 10493829] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [3] | "MOAT-E (ARA) is a full-length MRP/cMOAT subfamily transporter expressed in kidney and liver." Belinsky M.G., Kruh G.D. Br. J. Cancer 80:1342-1349(1999) [PubMed: 10424734] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [4] | "Loss of ATP-dependent transport activity in pseudoxanthoma elasticum-associated mutants of human ABCC6 (MRP6)." Ilias A., Urban Z., Seidl T.L., Le Saux O., Sinko E., Boyd C.D., Sarkadi B., Varadi A. J. Biol. Chem. 277:16860-16867(2002) [PubMed: 11880368] [Abstract] Cited for: FUNCTION, CHARACTERIZATION OF VARIANTS PXE PHE-1298; ARG-1302 AND SER-1321. |
| [5] | "Molecular genetics of pseudoxanthoma elasticum: a metabolic disorder at the environment-genome interface?" Uitto J., Pulkkinen L., Ringpfeil F. Trends Mol. Med. 7:13-17(2001) [PubMed: 11427982] [Abstract] Cited for: REVIEW, VARIANT PXE PRO-455. |
| [6] | "Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra." Yu L.-R., Zhu Z., Chan K.C., Issaq H.J., Dimitrov D.S., Veenstra T.D. J. Proteome Res. 6:4150-4162(2007) [PubMed: 17924679] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-902, MASS SPECTROMETRY. Tissue: Epithelium. |
| [7] | "Homozygosity for the R1268Q mutation in MRP6, the pseudoxanthoma elasticum gene, is not disease-causing." Germain D.P., Perdu J., Remones V., Jeunemaitre X. Biochem. Biophys. Res. Commun. 274:297-301(2000) [PubMed: 10913334] [Abstract] Cited for: VARIANT GLN-1268. |
| [8] | "Identification of two polymorphisms (c189G>C; c190T>C) in exon 2 of the human MRP6 gene (ABCC6) by screening of Pseudoxanthoma elasticum patients: possible sequence correction?" Germain D.P., Perdu J., Remones V., Manzoni K., Jeunemaitre X. Hum. Mutat. 16:449-449(2000) [PubMed: 11058917] [Abstract] Cited for: VARIANT ARG-64. |
| [9] | "Mutations of the gene encoding the transmembrane transporter protein ABC-C6 cause pseudoxanthoma elasticum." Struk B., Cai L., Zaech S., Ji W., Chung J., Lumsden A., Stumm M., Huber M., Schaen L., Kim C.-A., Goldsmith L.A., Viljoen D., Figuera L.E., Fuchs W., Munier F., Ramesar R., Hohl D., Richards R., Neldner K.H., Lindpaintner K. J. Mol. Med. 78:282-286(2000) [PubMed: 10954200] [Abstract] Cited for: VARIANT PXE CYS-1339, VARIANT GLN-632. |
| [10] | "Mutations in a gene encoding an ABC transporter cause pseudoxanthoma elasticum." Le Saux O., Urban Z., Tschuch C., Csiszar K., Bacchelli B., Quaglino D., Pasquali-Ronchetti I., Pope F.M., Richards A., Terry S., Bercovitch L., de Paepe A., Boyd C.D. Nat. Genet. 25:223-227(2000) [PubMed: 10835642] [Abstract] Cited for: VARIANTS PXE PRO-1114; GLN-1138 AND TRP-1314, VARIANT ALA-614. |
| [11] | "Pseudoxanthoma elasticum: mutations in the MRP6 gene encoding a transmembrane ATP-binding cassette (ABC) transporter." Ringpfeil F., Lebwohl M.G., Christiano A.M., Uitto J. Proc. Natl. Acad. Sci. U.S.A. 97:6001-6006(2000) [PubMed: 10811882] [Abstract] Cited for: VARIANT PXE TRP-1138, VARIANT GLN-1268. |
| [12] | "A spectrum of ABCC6 mutations is responsible for pseudoxanthoma elasticum." Le Saux O., Beck K., Sachsinger C., Silvestri C., Treiber C., Goering H.H.H., Johnson E.W., De Paepe A., Pope F.M., Pasquali-Ronchetti I., Bercovitch L., Terry S., Boyd C.D. Am. J. Hum. Genet. 69:749-764(2001) [PubMed: 11536079] [Abstract] Cited for: VARIANTS PXE LYS-411; GLN-518; SER-568; PRO-673; GLN-765; PRO-1114; TRP-1121; PRO-1138; GLN-1138; ASP-1203; PHE-1298; ILE-1301; ARG-1302; PRO-1303; GLN-1314; TRP-1314; SER-1321; CYS-1339; HIS-1347; ASN-1361 AND THR-1424, VARIANTS ASP-61; ARG-207; GLY-265; GLU-281; VAL-319; LYS-497; ALA-614; GLN-632; HIS-953; CYS-1241 AND GLN-1268. |
| [13] | "Identification of ABCC6 pseudogenes on human chromosome 16p: implications for mutation detection in pseudoxanthoma elasticum." Pulkkinen L., Nakano A., Ringpfeil F., Uitto J. Hum. Genet. 109:356-365(2001) [PubMed: 11702217] [Abstract] Cited for: VARIANTS PXE 60-ARG--TYR-62 DEL; ARG-364 AND ARG-1354, VARIANT GLY-265. |
| [14] | "ABCC6 gene polymorphism associated with variation in plasma lipoproteins." Wang J., Near S., Young K., Connelly P.W., Hegele R.A. J. Hum. Genet. 46:699-705(2001) [PubMed: 11776382] [Abstract] Cited for: VARIANTS ALA-614; GLN-632 AND GLN-1268. |
| [15] | "DNA sequencing of a cytogenetically normal acute myeloid leukaemia genome." 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. Wilson R.K.Nature 456:66-72(2008) [PubMed: 18987736] [Abstract] Cited for: VARIANT [LARGE SCALE ANALYSIS] GLN-1268. |
| + | Additional computationally mapped references. |
Web resources
| Mutations of the ABCC6 gene Retina International's Scientific Newsletter |
| GeneReviews |
Cross-references
Sequence databases | |
|---|---|
| AF076622 mRNA. Translation: AAC79696.1. U91318 Genomic DNA. Translation: AAC15785.1. Sequence problems. AF168791 mRNA. Translation: AAD51293.1. | |
| IPI | IPI00029455. |
| UniGene | Hs.442182 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1MT0 based on UniProtKB P08716. |
| ModBase | Search... |
Protein family/group databases | |
| TCDB | 3.A.1.208.10. ATP-binding cassette (ABC) superfamily. |
PTM databases | |
| PhosphoSite | O95255. |
Proteomic databases | |
| PRIDE | O95255. |
Genome annotation databases | |
| Ensembl | ENSG00000091262. Homo sapiens. [Contig view] |
Organism-specific databases | |
| GeneCards | GC16M016151. |
| H-InvDB | HIX0026937. HIX0038600. HIX0038877. |
| HGNC | HGNC:57. ABCC6. |
| MIM | 177850. phenotype. 264800. phenotype. 603234. gene. |
| Orphanet | 758. Pseudoxanthoma elasticum. |
| PharmGKB | PA58. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOGENOM | O95255. |
| HOVERGEN | O95255. |
Gene expression databases | |
| ArrayExpress | O95255. |
| Bgee | O95255. |
| CleanEx | HS_ABCC6. |
| GermOnline | ENSG00000091262. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR001140. ABC_TM_transpt. IPR003439. ABC_transporter-like. IPR017871. ABC_transporter_CS. IPR017940. ABC_transporter_type1. IPR003593. ATPase_AAA+_core. IPR005292. Multidrug-R_assoc_MRP. [Graphical view] |
| Pfam | PF00664. ABC_membrane. 2 hits. PF00005. ABC_tran. 2 hits. [Graphical view] |
| ProDom | PD000006. ABC_transporter. 2 hits. [Graphical view] [Entries sharing at least one domain] |
| SMART | SM00382. AAA. 2 hits. [Graphical view] |
| TIGRFAMs | TIGR00957. MRP_assoc_pro. 1 hit. |
| PROSITE | PS50929. ABC_TM1F. 2 hits. PS00211. ABC_TRANSPORTER_1. 2 hits. PS50893. ABC_TRANSPORTER_2. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| SOURCE | Search... |
Entry information
| Entry name | MRP6_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O95255 Secondary accession number(s): P78420, Q9UMZ7 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| Human chromosome 16 Human chromosome 16: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with


