PABPN1 - poly(A) binding protein nuclear 1 Gene
Also Known as OPMD; PAB2; PABII; PABP2; PABP-2
Species: Homo sapiens
About PABPN1
This gene has 8 transcripts (splice variants), 220 orthologues, 1 paralogue and is associated with 2 phenotypes. Ubiquitous expression in testis (RPKM 38.5), spleen (RPKM 30.3) and 25 other tissues.
Summary
This gene encodes an abundant nuclear protein that binds with high affinity to nascent poly(A) tails. The protein is required for progressive and efficient polymerization of poly(A) tails at the 3' ends of eukaryotic transcripts and controls the size of the poly(A) tail to about 250 nt. At steady-state, this protein is localized in the nucleus whereas a different poly(A) binding protein is localized in the cytoplasm. This gene contains a GCG trinucleotide repeat at the 5' end of the coding region, and expansion of this repeat from the normal 6 copies to 8-13 copies leads to autosomal dominant oculopharyngeal muscular dystrophy (OPMD) disease. Related pseudogenes have been identified on chromosomes 19 and X. Read-through transcription also exists between this gene and the neighboring upstream BCL2-like 2 (BCL2L2) gene. [provided by RefSeq, Dec 2010]
PABPN1 Products (3)
| mRNA | Protein | Name |
|---|---|---|
| NM_001360551.3 | NP_001347480.1 | polyadenylate-binding protein 2 isoform 2 |
| NM_001360552.2 | NP_001347481.1 | polyadenylate-binding protein 2 isoform 3 |
| NM_004643.4 | NP_004634.1 | polyadenylate-binding protein 2 isoform 1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
11371506 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in poly(A)+ mRNA export from nucleus |
IMP
IMP: Inferred from mutant phenotype
|
19364924 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in nuclear inclusion body |
IDA
IDA: Inferred from direct assay
|
27209344 | GOA |
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
19364924 | GOA |
| part of ribonucleoprotein complex |
IDA
IDA: Inferred from direct assay
|
17289661 | GOA |
PABPN1 Protein Structure
RRM_1: RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain) (174 - 243)
- 0
- 100
- 200
- 306 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
polyadenylate-binding protein 2 |
|
PABPN1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
PABPN1 | Q86U42 | SNW1 | Homo sapiens | Q13573 | 11371506 | |
|
Intra
|
PABPN1 | Q86U42 | SNW1 | Homo sapiens | Q13573 | 11371506 | |
|
Intra
|
PABPN1 | Q86U42 | SNW1 | Homo sapiens | Q13573 | 11371506 | |
|
Intra
|
PABPN1 | Q86U42 | PABPC1 | Homo sapiens | P11940 | 23665581 |
PABPN1 Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P81776 | PABPN1 Antibody (YA1521) | WB, IHC-F, IHC-P, ICC/IF, FC, IP | Human, Mouse, Rat |
| HY-P81776A | PABPN1 Antibody (YA1521)(PBS only) | WB, IHC-F, IHC-P, ICC/IF, FC, IP | Human, Mouse, Rat |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Oculopharyngeal Muscular Dystrophy |
|
|
| Muscular Dystrophy |
|
|
| Ptosis |
|
|
| Influenza |
|
|
| Myopathy |
|
|
| Partington Syndrome |
|
|
| Inclusion Body Myositis |
|
|
| Neuromuscular Disease |
|
|
| Hand-Foot-Genital Syndrome |
|
|
| Synpolydactyly |
|
|
| Frontotemporal Dementia |
|
|
| Aspiration Pneumonia |
|
|
| Congenital Central Hypoventilation Syndrome |
|
|
| Muscle Tissue Disease |
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Felis catus | PABPN1 | VGNC | VGNC:80890 |
| Bos taurus | PABPN1 | VGNC | VGNC:53575 |
| Rattus norvegicus | PABPN1 | RGD | RGD:619928 |
| Canis familiaris | PABPN1 | VGNC | VGNC:50550 |
| Mus musculus | PABPN1 | MGD | MGI:1859158 |
| Others | PABPN1 | NCBI |