Q86UK0 (ABCAC_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 86.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames 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) | ||||
| 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. |
| 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. |
| Sequence caution | The sequence AAN40735.1 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Transport |
| Cellular component | Membrane |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation Ichthyosis |
| Domain | Repeat Transmembrane Transmembrane helix |
| Ligand | ATP-binding Nucleotide-binding |
| PTM | Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological process | cellular homeostasis Non-traceable author statement Ref.1. Source: UniProtKB lipid transportNon-traceable author statement Ref.6. Source: UniProtKB |
| Cellular component | integral to membrane Non-traceable author statement Ref.1. Source: UniProtKB |
| Molecular function | ATP binding Non-traceable author statement Ref.1. 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 | Helical; Potential | ||||||
| Transmembrane | 1065 – 1085 | 21 | Helical; Potential | ||||||
| Transmembrane | 1112 – 1132 | 21 | Helical; Potential | ||||||
| Transmembrane | 1145 – 1165 | 21 | Helical; Potential | ||||||
| Transmembrane | 1174 – 1194 | 21 | Helical; Potential | ||||||
| Transmembrane | 1200 – 1220 | 21 | Helical; Potential | ||||||
| Transmembrane | 1250 – 1270 | 21 | Helical; Potential | ||||||
| Transmembrane | 1747 – 1767 | 21 | Helical; Potential | ||||||
| Transmembrane | 1979 – 1999 | 21 | Helical; Potential | ||||||
| Transmembrane | 2035 – 2055 | 21 | Helical; Potential | ||||||
| Transmembrane | 2072 – 2092 | 21 | Helical; Potential | ||||||
| Transmembrane | 2103 – 2123 | 21 | Helical; Potential | ||||||
| Transmembrane | 2187 – 2207 | 21 | Helical; Potential | ||||||
| Transmembrane | 2270 – 2290 | 21 | Helical; 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. Corresponds to variant rs16853238 [ dbSNP | Ensembl ]. | VAR_055473 | |||||
| Natural variant | 237 | 1 | N → H. Corresponds to variant rs11890512 [ dbSNP | Ensembl ]. | VAR_055474 | |||||
| Natural variant | 274 | 1 | Q → R. Corresponds to variant rs11890468 [ dbSNP | Ensembl ]. | VAR_055475 | |||||
| Natural variant | 287 | 1 | R → G. Corresponds to variant rs11891778 [ dbSNP | Ensembl ]. | VAR_055476 | |||||
| Natural variant | 459 | 1 | S → T. Corresponds to variant rs7560008 [ dbSNP | Ensembl ]. | VAR_019597 | |||||
| Natural variant | 476 | 1 | A → V in a pancreatic ductal adenocarcinoma sample; somatic mutation. Ref.8 | VAR_062663 | |||||
| Natural variant | 550 | 1 | E → G. Corresponds to variant rs16853149 [ dbSNP | Ensembl ]. | VAR_027444 | |||||
| Natural variant | 777 | 1 | S → T. Ref.1 Ref.2 Ref.4 Corresponds to variant rs7560008 [ dbSNP | Ensembl ]. | VAR_027445 | |||||
| Natural variant | 1251 | 1 | G → D. Corresponds to variant rs13414448 [ dbSNP | Ensembl ]. | VAR_027446 | |||||
| Natural variant | 1380 | 1 | N → S in LI2. Ref.6 Corresponds to variant rs28940269 [ dbSNP | Ensembl ]. | VAR_019598 | |||||
| Natural variant | 1381 | 1 | G → E in LI2. Ref.6 Corresponds to variant rs28940268 [ dbSNP | Ensembl ]. | VAR_019599 | |||||
| Natural variant | 1514 | 1 | R → H in LI2. Ref.6 Corresponds to variant rs28940270 [ dbSNP | Ensembl ]. | VAR_019600 | |||||
| Natural variant | 1539 | 1 | E → K in LI2. Ref.6 Corresponds to variant rs28940271 [ dbSNP | Ensembl ]. | VAR_019601 | |||||
| Natural variant | 1546 | 1 | R → C. Corresponds to variant rs13401480 [ dbSNP | Ensembl ]. | VAR_027447 | |||||
| Natural variant | 1651 | 1 | G → S in LI2. Ref.6 Corresponds to variant rs28940568 [ dbSNP | Ensembl ]. | VAR_019602 | |||||
| Natural variant | 2064 | 1 | E → K. Corresponds to variant rs1213011 [ dbSNP | Ensembl ]. | VAR_027448 | |||||
| Natural variant | 2365 | 1 | D → N in HI. Ref.7 Corresponds to variant rs726070 [ dbSNP | Ensembl ]. | 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
| ||||||||||||||||||||||||
References
Web resources
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | 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. IPI00939572. |
| PIR | T12512. |
| RefSeq | NP_056472.2. NM_015657.3. NP_775099.2. NM_173076.2. |
| UniGene | Hs.134585. |
3D structure databases | |
| ProteinModelPortal | Q86UK0. |
| SMR | Q86UK0. Positions 1346-1569, 2253-2484. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | Q86UK0. |
PTM databases | |
| PhosphoSite | Q86UK0. |
Polymorphism databases | |
| DMDM | 269849713. |
Proteomic databases | |
| PRIDE | Q86UK0. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000272895; ENSP00000272895; ENSG00000144452. |
| GeneID | 26154. |
| KEGG | hsa:26154. |
| UCSC | uc002vev.1. human. uc002vew.1. human. |
Organism-specific databases | |
| CTD | 26154. |
| GeneCards | GC02M215760. |
| H-InvDB | HIX0002801. |
| HGNC | HGNC:14637. ABCA12. |
| HPA | HPA043194. |
| MIM | 242500. phenotype. 601277. phenotype. 607800. gene. |
| neXtProt | NX_Q86UK0. |
| Orphanet | 79394. Congenital nonbullous ichthyosiform erythroderma. 457. Ichthyosis congenita, harlequin type. |
| PharmGKB | PA24376. |
| GenAtlas | Search... |
Phylogenomic databases | |
| GeneTree | ENSGT00600000084012. |
| HOVERGEN | HBG080807. |
| InParanoid | Q86UK0. |
| OrthoDB | EOG4XPQF1. |
| PhylomeDB | 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] |
| KO | K05646. |
| 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 | |
| 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 program | Chordata Protein Annotation Program | ||||||||
| 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