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Rabbit Anti-PABP/FITC Conjugated antibody
background:
This gene encodes a poly(A) binding protein. The protein shuttles between the nucleus and cytoplasm and binds to the 3' poly(A) tail of eukaryotic messenger RNAs via RNA-recognition motifs. The binding of this protein to poly(A) promotes ribosome recruitment and translation initiation; it is also required for poly(A) shortening which is the first step in mRNA decay. The gene is part of a small gene family including three protein-coding genes and several pseudogenes.[provided by RefSeq, Aug 2010].
Function:
Binds the poly(A) tail of mRNA. May be involved in cytoplasmic regulatory processes of mRNA metabolism such as pre-mRNA splicing. Its function in translational initiation regulation can either be enhanced by PAIP1 or repressed by PAIP2. Can probably bind to cytoplasmic RNA sequences other than poly(A) in vivo. Involved in translationally coupled mRNA turnover. Implicated with other RNA-binding proteins in the cytoplasmic deadenylation/translational and decay interplay of the FOS mRNA mediated by the major coding-region determinant of instability (mCRD) domain. Involved in regulation of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons; for the recognition of premature termination codons (PTC) and initiation of NMD a competitive interaction between UPF1 and PABPC1 with the ribosome-bound release factors is proposed.
Subunit:
Component of a multi subunit autoregulatory ribonucleoprotein complex (ARC), at least composed of IGF2BP1, PABPC1 and CSDE1. Interacts with IGF2BP1.
Subcellular Location:
Cytoplasm. Nucleus.
Tissue Specificity:
Ubiquitous.
Post-translational modifications:
Phosphorylated by MAPKAPK2.
Methylated by CARM1. Arg-493 is dimethylated, probably to asymmetric dimethylarginine.
Similarity:
Belongs to the polyadenylate-binding protein type-1 family.
Contains 1 PABC domain.
Contains 4 RRM (RNA recognition motif) domains.
Database links:
Entrez Gene: 26986 Human
Entrez Gene: 18458 Mouse
Entrez Gene: 171350 Rat
Omim: 604679 Human
SwissProt: P11940 Human
SwissProt: P29341 Mouse
SwissProt: Q9EPH8 Rat
Unigene: 387804 Human
Unigene: 371570 Mouse
Unigene: 127813 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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