PABPN1 — Poly(A) binding protein nuclear 1
PABPN1 belongs to a gene co-expression module in 3 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
PABPN1's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Gamma-delta T cells | RNA Processing RNA processing & translation | ATP5F1A, ATP5F1B, ATP5F1C, ATP5IF1, BUD23, CIAO2B, E2F4, ELAVL1 +12 more | |
| Innate lymphoid cells | ILC3 identity Differentiation | BHLHE40, BRD4, CASK, CITED2, GLUL, GNAS, HECA, IGFBP7 +19 more | View in SCUBA |
| Macrophages | Golgi-Endosome Trafficking Vesicular traficking | ACSL4, ADPGK, ARRDC3, ATXN7L3B, CLN8, DDB1, DNAJC2, ETS2 +26 more | View in SCUBA |
About the gene
| Synonyms | OPMD, PAB2, PABP2 |
|---|---|
| Chromosome | 14: 23321457-23326163 |
| Predicted location | Intracellular |
| Essential gene | Yes |
| Protein class | Disease related genes, Essential proteins, Human disease related genes, Plasma proteins, Predicted intracellular proteins |
| Molecular function | RNA-binding |
| Biological process | mRNA processing |
Function
Involved in the 3'-end formation of mRNA precursors (pre- mRNA) by the addition of a poly(A) tail of 200-250 nt to the upstream cleavage product (By similarity). Stimulates poly(A) polymerase (PAPOLA) conferring processivity on the poly(A) tail elongation reaction and also controls the poly(A) tail length (By similarity). Increases the affinity of poly(A) polymerase for RNA (By similarity). Is also present at various stages of mRNA metabolism including nucleocytoplasmic trafficking and nonsense-mediated decay (NMD) of mRNA. Cooperates with SKIP to synergistically activate E-box-mediated transcription through MYOD1 and may regulate the expression of muscle- specific genes. Binds to poly(A) and to poly(G) with high affinity (By similarity). May protect the poly(A) tail from degradation (By similarity). Subunit of the trimeric poly(A) tail exosome targeting (PAXT) complex, a complex that directs a subset of long and polyadenylated poly(A) RNAs for exosomal degradation. The RNA exosome is fundamental for the degradation of RNA in eukaryotic nuclei. Substrate targeting is facilitated by its cofactor MTREX, which links to RNA-binding protein adapters.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.