ICA1 - islet cell autoantigen 1 Gene
Also Known as ICA69; ICAp69
Species: Homo sapiens
About ICA1
This gene has 19 transcripts (splice variants), 213 orthologues and 1 paralogue. Ubiquitous expression in testis (RPKM 10.6), heart (RPKM 7.8) and 23 other tissues.
Summary
This gene encodes a protein with an arfaptin homology domain that is found both in the cytosol and as membrane-bound form on the Golgi complex and immature secretory granules. This protein is believed to be an autoantigen in insulin-dependent diabetes mellitus and primary Sjogren's syndrome. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Feb 2013]
ICA1 Products (23)
| mRNA | Protein | Name |
|---|---|---|
| NM_001136020.3 | NP_001129492.1 | islet cell autoantigen 1 isoform a |
| NM_001276478.2 | NP_001263407.1 | islet cell autoantigen 1 isoform b |
| NM_001350819.2 | NP_001337748.1 | islet cell autoantigen 1 isoform a |
| NM_001350820.2 | NP_001337749.1 | islet cell autoantigen 1 isoform a |
| NM_001350821.2 | NP_001337750.1 | islet cell autoantigen 1 isoform b |
| NM_001350823.2 | NP_001337752.1 | islet cell autoantigen 1 isoform b |
| NM_001350824.2 | NP_001337753.1 | islet cell autoantigen 1 isoform b |
| NM_001350825.2 | NP_001337754.1 | islet cell autoantigen 1 isoform b |
| NM_001350826.2 | NP_001337755.1 | islet cell autoantigen 1 isoform c |
| NM_001350827.2 | NP_001337756.1 | islet cell autoantigen 1 isoform c |
| NM_001350828.2 | NP_001337757.1 | islet cell autoantigen 1 isoform d |
| NM_001350829.2 | NP_001337758.1 | islet cell autoantigen 1 isoform d |
| NM_001350830.2 | NP_001337759.1 | islet cell autoantigen 1 isoform e |
| NM_001350831.2 | NP_001337760.1 | islet cell autoantigen 1 isoform f |
| NM_001350832.2 | NP_001337761.1 | islet cell autoantigen 1 isoform f |
| NM_001350833.2 | NP_001337762.1 | islet cell autoantigen 1 isoform f |
| NM_001350834.2 | NP_001337763.1 | islet cell autoantigen 1 isoform g |
| NM_001350835.2 | NP_001337764.1 | islet cell autoantigen 1 isoform h |
| NM_001350836.2 | NP_001337765.1 | islet cell autoantigen 1 isoform h |
| NM_001350837.2 | NP_001337766.1 | islet cell autoantigen 1 isoform h |
| NM_001350838.2 | NP_001337767.1 | islet cell autoantigen 1 isoform i |
| NM_004968.4 | NP_004959.2 | islet cell autoantigen 1 isoform a |
| NM_022307.3 | NP_071682.1 | islet cell autoantigen 1 isoform a |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables membrane curvature sensor activity |
IDA
IDA: Inferred from direct assay
|
29768204 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
25416956 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in Golgi membrane |
IDA
IDA: Inferred from direct assay
|
12682071 | GOA |
| located in secretory granule membrane |
IDA
IDA: Inferred from direct assay
|
12682071 | GOA |
ICA1 Protein Structure
Arfaptin: Arfaptin-like domain (22 - 249)
ICA69: Islet cell autoantigen ICA69, C-terminal domain (261 - 483)
- 0
- 100
- 200
- 300
- 400
- 483 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
islet cell autoantigen 1 |
|
ICA1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
ICA1 | Q05084 | CCDC28A | Homo sapiens | Q7Z6N9 | 25416956 | |
|
Intra
|
ICA1 | Q05084 | MBD3 | Homo sapiens | O95983 | 25416956 | |
|
Intra
|
ICA1 | Q05084 | RAB2B | Homo sapiens | Q8WUD1 | 25416956 | |
|
Intra
|
ICA1 | Q05084 | RAB2B | Homo sapiens | Q8WUD1 | 25416956 | |
|
Intra
|
ICA1 | Q05084 | RAB2B | Homo sapiens | Q8WUD1 | 25416956 | |
|
Intra
|
ICA1 | Q05084 | RAB2A | Homo sapiens | P61019 | 25416956 |
Recombinant ICA1 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P72274 | Islet cell autoantigen 1/ICA1, Human (P.pastoris, His) | Q05084-3 (M1-A482) | ≥ 90%, as determined by reducing SDS-PAGE. |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Insulinoma |
|
|
| Diabetes Mellitus |
|
|
| Type 1 Diabetes Mellitus |
|
|
| Cataract 3, Multiple Types |
|
|
| Type 1 Diabetes Mellitus 5 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Rattus norvegicus | ICA1 | RGD | RGD:621465 |
| Mus musculus | ICA1 | MGD | MGI:96391 |
| Canis familiaris | ICA1 | VGNC | VGNC:41854 |
| Macaca mulatta | ICA1 | VGNC | VGNC:73551 |
| Felis catus | ICA1 | VGNC | VGNC:67684 |
| Bos taurus | ICA1 | VGNC | VGNC:30023 |
| Others | ICA1 | NCBI |