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From Wikipedia, the free encyclopedia

PABPC4
Identifiers
AliasesPABPC4, APP-1, APP1, PABP4, iPABP, poly(A) binding protein cytoplasmic 4
External IDsOMIM: 603407 MGI: 2385206 HomoloGene: 37855 GeneCards: PABPC4
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_003819
NM_001135653
NM_001135654

NM_130881
NM_148917
NM_001356377

RefSeq (protein)

NP_001129125
NP_001129126
NP_003810

n/a

Location (UCSC)Chr 1: 39.56 – 39.58 MbChr 4: 123.16 – 123.19 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Polyadenylate-binding protein 4 (PABPC4) is a protein that in humans is encoded by the PABPC4 gene.[5][6]

Function

Poly(A)-binding proteins (PABPs) bind to the poly(A) tail present at the 3-prime ends of most eukaryotic mRNAs. PABPC4 or IPABP (inducible PABP) was isolated as an activation-induced T-cell mRNA encoding a protein. Activation of T cells increased PABPC4 mRNA levels in T cells approximately 5-fold. PABPC4 contains 4 RNA-binding domains and proline-rich C terminus. PABPC4 is localized primarily to the cytoplasm. It is suggested that PABPC4 might be necessary for regulation of stability of labile mRNA species in activated T cells. PABPC4 was also identified as an antigen, APP1 (activated-platelet protein-1), expressed on thrombin-activated rabbit platelets. PABPC4 may also be involved in the regulation of protein translation in platelets and megakaryocytes or may participate in the binding or stabilization of polyadenylates in platelet dense granules.[6]

Interactions

PABPC4 has been shown to interact with PHLDA1.[7]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000090621 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000011257 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Féral C, Mattéi MG, Pawlak A, Guellaën G (Nov 1999). "Chromosomal localization of three human poly(A)-binding protein genes and four related pseudogenes". Hum Genet. 105 (4): 347–53. doi:10.1007/s004399900148. PMC 1865476. PMID 10543404.
  6. ^ a b "Entrez Gene: PABPC4 poly(A) binding protein, cytoplasmic 4 (inducible form)".
  7. ^ Hinz T, Flindt S, Marx A, Janssen O, Kabelitz D (May 2001). "Inhibition of protein synthesis by the T cell receptor-inducible human TDAG51 gene product". Cell. Signal. 13 (5): 345–52. doi:10.1016/S0898-6568(01)00141-3. PMID 11369516.

Further reading

This page was last edited on 8 April 2024, at 02:05
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