Reviewed,
UniProtKB/Swiss-Prot Q86UK0 (ABCAC_HUMAN)
Last modified
November 24, 2009.
Version 66.
History...
Clusters with 100%,
90%,
50% identity |
Documents (5) |
Third-party data |
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Names and origin
| Protein names | Recommended name: ATP-binding cassette sub-family A member 12 Alternative name(s): ATP-binding cassette transporter 12 Short name=ATP-binding cassette 12 | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Complete proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 2595 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Probable transporter involved in lipid homeostasis. |
| Subcellular location | Membrane; Multi-pass membrane protein Potential. |
| Tissue specificity | Mainly expressed in the stomach, placenta, testis and fetal brain. Ref.1 |
| Domain | Multifunctional polypeptide with two homologous halves, each containing an hydrophobic membrane-anchoring domain and an ATP binding cassette (ABC) domain By similarity. |
| Involvement in disease | Defects in ABCA12 are the cause of ichthyosis harlequin (HI) [MIM:242500]; also known as harlequin fetus. HI is a very severe skin disorder in which the neonate is born with a thick covering of armor-like scales. The skin dries out to form hard diamond-shaped plaques separated by fissures, resembling 'armor plating'. The normal facial features are severely affected, with distortion of the lips (eclabion), eyelids (ectropion), ears, and nostrils. Affected babies are often born prematurely and rarely survive the perinatal period. Ref.6 Ref.7 Defects in ABCA12 are the cause of ichthyosis lamellar type 2 (LI2) [MIM:601277]; also known as ichthyosis congenita IIB (ICR2B). LI is a non-bullous ichthyosis, a skin disorder characterized by abnormal cornification of the epidermis. It is one the most severe forms of ichthyoses apparent at birth and persisting throughout life. LI patients are born encased in a tight, shiny, translucent covering called collodion membrane. Over the first weeks of life, the collodion membrane is gradually replaced by generalized large, dark brown, plate-like scales with minimal to no erythroderma. Tautness of facial skin commonly results in ectropion, eclabium and scarring alopecia of the scalp. Common complications are severe heat intolerance and recurrent ear infections. Ref.6 |
| Sequence similarities | Belongs to the ABC transporter superfamily. ABCA family. Contains 2 ABC transporter domains. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Transport |
| Cellular component | Membrane |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation Ichthyosis |
| Domain | Repeat Transmembrane |
| Ligand | ATP-binding Nucleotide-binding |
| PTM | Glycoprotein |
| Technical term | Complete proteome |
| Gene Ontology (GO) | |
| Biological process | cellular homeostasis Ref.1 Non-traceable author statement. Source: UniProtKB lipid transport Ref.6Non-traceable author statement. Source: UniProtKB |
| Cellular component | integral to membrane Ref.1 Non-traceable author statement. Source: UniProtKB |
| Molecular function | ATP binding Ref.1 Non-traceable author statement. Source: UniProtKB ATPase activityInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] Note: Additional isoforms seem to exist. | ||||||
| Isoform 1 (identifier: Q86UK0-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q86UK0-2) The sequence of this isoform differs from the canonical sequence as follows: 1-318: Missing. 319-328: LLYTLDSPAQ → MFTYIKIITS | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2595 | 2595 | ATP-binding cassette sub-family A member 12 | PRO_0000093300 | |||||
Regions | |||||||||
| Transmembrane | 23 – 43 | 21 | Potential | ||||||
| Transmembrane | 1065 – 1085 | 21 | Potential | ||||||
| Transmembrane | 1112 – 1132 | 21 | Potential | ||||||
| Transmembrane | 1145 – 1165 | 21 | Potential | ||||||
| Transmembrane | 1174 – 1194 | 21 | Potential | ||||||
| Transmembrane | 1200 – 1220 | 21 | Potential | ||||||
| Transmembrane | 1250 – 1270 | 21 | Potential | ||||||
| Transmembrane | 1747 – 1767 | 21 | Potential | ||||||
| Transmembrane | 1979 – 1999 | 21 | Potential | ||||||
| Transmembrane | 2035 – 2055 | 21 | Potential | ||||||
| Transmembrane | 2072 – 2092 | 21 | Potential | ||||||
| Transmembrane | 2103 – 2123 | 21 | Potential | ||||||
| Transmembrane | 2187 – 2207 | 21 | Potential | ||||||
| Transmembrane | 2270 – 2290 | 21 | Potential | ||||||
| Domain | 1346 – 1577 | 232 | ABC transporter 1 | ||||||
| Domain | 2254 – 2489 | 236 | ABC transporter 2 | ||||||
| Nucleotide binding | 1378 – 1385 | 8 | ATP 1 Potential | ||||||
| Nucleotide binding | 2290 – 2297 | 8 | ATP 2 Potential | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 156 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 174 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 214 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 275 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 333 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 367 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 383 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 412 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 435 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 528 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 543 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 577 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 608 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 623 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 648 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 752 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 826 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 920 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 963 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1170 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1524 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1663 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1704 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1769 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1819 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1835 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1876 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1921 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 1952 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2178 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2208 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2223 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2318 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2542 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 2547 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 318 | 318 | Missing in isoform 2. | VSP_011283 | |||||
| Alternative sequence | 319 – 328 | 10 | LLYTLDSPAQ → MFTYIKIITS in isoform 2. | VSP_011284 | |||||
| Natural variant | 199 | 1 | W → C: dbSNP rs16853238. | VAR_055473 | |||||
| Natural variant | 237 | 1 | N → H: dbSNP rs11890512. | VAR_055474 | |||||
| Natural variant | 274 | 1 | Q → R: dbSNP rs11890468. | VAR_055475 | |||||
| Natural variant | 287 | 1 | R → G: dbSNP rs11891778. | VAR_055476 | |||||
| Natural variant | 459 | 1 | S → T: dbSNP rs7560008. | VAR_019597 | |||||
| Natural variant | 550 | 1 | E → G: dbSNP rs16853149. | VAR_027444 | |||||
| Natural variant | 777 | 1 | S → T: dbSNP rs7560008. | VAR_027445 | |||||
| Natural variant | 1251 | 1 | G → D: dbSNP rs13414448. | VAR_027446 | |||||
| Natural variant | 1380 | 1 | N → S in LI2. dbSNP rs28940269. | VAR_019598 | |||||
| Natural variant | 1381 | 1 | G → E in LI2. dbSNP rs28940268. | VAR_019599 | |||||
| Natural variant | 1514 | 1 | R → H in LI2. dbSNP rs28940270. | VAR_019600 | |||||
| Natural variant | 1539 | 1 | E → K in LI2. dbSNP rs28940271. | VAR_019601 | |||||
| Natural variant | 1546 | 1 | R → C: dbSNP rs13401480. | VAR_027447 | |||||
| Natural variant | 1651 | 1 | G → S in LI2. dbSNP rs28940568. | VAR_019602 | |||||
| Natural variant | 2064 | 1 | E → K: dbSNP rs1213011. | VAR_027448 | |||||
| Natural variant | 2365 | 1 | D → N in HI. dbSNP rs726070. Ref.7 | VAR_027449 | |||||
Experimental info | |||||||||
| Sequence conflict | 651 | 1 | Y → D in AAP21093. Ref.1 | ||||||
| Sequence conflict | 811 | 1 | Y → H in AAP21093. Ref.1 | ||||||
| Sequence conflict | 826 | 1 | N → D in AAK54355. Ref.2 | ||||||
| Sequence conflict | 2079 | 1 | Y → H in AAP21093. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification and characterization of a novel ABCA subfamily member, ABCA12, located in the lamellar ichthyosis region on 2q34." Annilo T., Shulemin S., Chen Z.Q., Arnould I., Prades C., Lemoine C., Maintoux-Larois C., Devaud C., Dean M., Denefle P., Rosier M. Cytogenet. Genome Res. 98:169-176(2002) [PubMed: 12697999] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY, VARIANT THR-777. Tissue: Placenta. |
| [2] | "A retinal cDNA for the ATP-binding cassette transporter ABCA12." Bonner T.I., Moses T., Detera-Wadleigh S. Submitted (APR-2001) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), VARIANT THR-777. Tissue: Retina. |
| [3] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed: 15815621] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "Cloning of a novel ABC transporter (ABCA12) tentatively involved in lipid homeostatis." Schaap F.G., van Wijland M., Groen A.K. Submitted (SEP-2001) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 221-2595, VARIANT THR-777. |
| [5] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed: 17974005] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 2400-2595. Tissue: Testis. |
| [6] | "Mutations in the transporter ABCA12 are associated with lamellar ichthyosis type 2." Lefevre C., Audebert S., Jobard F., Bouadjar B., Lakhdar H., Boughdene-Stambouli O., Blanchet-Bardon C., Heilig R., Foglio M., Weissenbach J., Lathrop M., Prud'homme J.F., Fischer J. Hum. Mol. Genet. 12:2369-2378(2003) [PubMed: 12915478] [Abstract] Cited for: VARIANTS LI2 SER-1380; GLU-1381; HIS-1514; LYS-1539 AND SER-1651. |
| [7] | "Mutations in ABCA12 underlie the severe congenital skin disease harlequin ichthyosis." Kelsell D.P., Norgett E.E., Unsworth H., Teh M.-T., Cullup T., Mein C.A., Dopping-Hepenstal P.J., Dale B.A., Tadini G., Fleckman P., Stephens K.G., Sybert V.P., Mallory S.B., North B.V., Witt D.R., Sprecher E., Taylor A.E.M., Ilchyshyn A. O'Toole E.A.Am. J. Hum. Genet. 76:794-803(2005) [PubMed: 15756637] [Abstract] Cited for: VARIANT HI ASN-2365. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| AY219711 mRNA. Translation: AAP21093.1. AY033486 mRNA. Translation: AAK54355.1. AC072062 Genomic DNA. Translation: AAY24276.1. AC114780 Genomic DNA. Translation: AAY24230.1. AF418105 mRNA. Translation: AAN40735.1. Different initiation. AL080207 mRNA. Translation: CAB45776.1. | |
| IPI | IPI00457109. IPI00782981. |
| PIR | T12512. |
| RefSeq | NP_056472.2. NP_775099.2. |
| UniGene | Hs.134585 |
3D structure databases | |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | Q86UK0. |
PTM databases | |
| PhosphoSite | Q86UK0. |
Proteomic databases | |
| PRIDE | Q86UK0. |
Genome annotation databases | |
| Ensembl | ENST00000272895; ENSP00000272895; ENSG00000144452; Homo sapiens. [Genome view] |
| GeneID | 26154. |
| KEGG | hsa:26154. |
| UCSC | uc002vev.1. human. uc002vew.1. human. |
Organism-specific databases | |
| CTD | 26154. |
| GeneCards | GC02M215504. |
| H-InvDB | HIX0002801. |
| HGNC | HGNC:14637. ABCA12. |
| MIM | 242500. phenotype. 601277. phenotype. 607800. gene. |
| Orphanet | 457. Ichthyosis congenita, harlequin type. 313. Ichthyosis, lamellar. |
| PharmGKB | PA24376. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOVERGEN | Q86UK0. |
Enzyme and pathway databases | |
| Reactome | REACT_15518. Transmembrane transport of small molecules. |
Gene expression databases | |
| ArrayExpress | Q86UK0. |
| Bgee | Q86UK0. |
| CleanEx | HS_ABCA12. |
| Genevestigator | Q86UK0. |
| GermOnline | ENSG00000144452. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR003439. ABC_transporter-like. IPR017871. ABC_transporter_CS. IPR003593. ATPase_AAA+_core. [Graphical view] |
| Pfam | PF00005. ABC_tran. 2 hits. [Graphical view] |
| SMART | SM00382. AAA. 2 hits. [Graphical view] |
| PROSITE | PS00211. ABC_TRANSPORTER_1. 1 hit. PS50893. ABC_TRANSPORTER_2. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 48241. |
| SOURCE | Search... |
Entry information
| Entry name | ABCAC_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q86UK0 Secondary accession number(s): Q53QE2 Q9Y4M5 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 2 Human chromosome 2: 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


