Immunogen sequence: MDTGVIEGGL NVTLTIRLLM HGKEVGSIIG KKGESVKKMR EESGARINIS EGNCPERIIT LAGPTNAIFK AFAMIIDKLE EDISSSMTNS TAASRPPVTL RLVVPASQCG SLIGKGGCKI KEIRESTGAQ; Positive Samples: SW620, MCF7, Mouse spleen; Cellular Location: Cytoplasm, Nucleus
The protein encoded by this gene appears to be multifunctional. Along with PCBP-1 and hnRNPK, it is one of the major cellular poly(rC)-binding proteins. The encoded protein contains three K-homologous (KH) domains which may be involved in RNA binding. Together with PCBP-1, this protein also functions as a translational coactivator of poliovirus RNA via a sequence-specific interaction with stem-loop IV of the IRES, promoting poliovirus RNA replication by binding to its 5'-terminal cloverleaf structure. It has also been implicated in translational control of the 15-lipoxygenase mRNA, human papillomavirus type 16 L2 mRNA, and hepatitis A virus RNA. The encoded protein is also suggested to play a part in formation of a sequence-specific alpha-globin mRNP complex which is associated with alpha-globin mRNA stability. This multiexon structural mRNA is thought to be retrotransposed to generate PCBP-1, an intronless gene with functions similar to that of PCBP2. This gene and PCBP-1 have paralogous genes (PCBP3 and PCBP4) which are thought to have arisen as a result of duplication events of entire genes. This gene also has two processed pseudogenes (PCBP2P1 and PCBP2P2). Multiple transcript variants encoding different isoforms have been found for this gene.
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Protein Aliases: Alpha CP2; Alpha-CP2; CBP; CTBP; Heterogeneous nuclear ribonucleoprotein E2; heterogeneous nuclear ribonucleoprotein X; heterogenous nuclear ribonucleoprotein E2; hnRNP E2; hnRNP X; MGC110998; Poly(rC)-binding protein 2; Putative heterogeneous nuclear ribonucleoprotein X; rCbinding protein 2
Gene Aliases: alphaCP-2; AW412548; Cbp; fb36h02; hnRNP-E2; HNRNPE2; Hnrnpx; HNRPE2; Hnrpx; PCBP2; PCBP3; wu:fb36h02; zgc:55964