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Symbol PCBP2 contributors: mct - updated : 03-01-2014
HGNC name poly(rC) binding protein 2
HGNC id 8648
Location 12q13.13      Physical location : 53.845.885 - 53.874.945
Synonym name
  • heterogenous nuclear ribonucleoprotein E2
  • alpha-CP2
  • Synonym symbol(s) HNRPE2, MGC110998, hnRNP-E2, alphaCP-2
    TYPE functioning gene
    STRUCTURE 29.06 kb     15 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    MAPPING cloned Y linked N status provisional
    Physical map
    KRT8 12q13 keratin 8 KRT18 12q13 keratin 18 EIF4B 12q13.13 eukaryotic translation initiation factor 4B PRO1843 12q13.13 hypothetical protein PRO1843 TENC1 12q12 tensin like C1 domain-containing phosphatase FLJ14800 12q13.13 hypothetical protein FLJ14800 IGFBP6 12q13 insulin-like growth factor binding protein 6 SOAT2 12q13.13 sterol O-acyltransferase 2 LOC387862 12 hypothetical gene supported by AK130082; NM_001416 CSAD 12q13.11-q14.3 cysteine sulfinic acid decarboxylase LOC390316 12 similar to oriLyt TD-element binding protein 7 ITGB7 12q13.2 integrin, beta 7 MGC11308 12q13.13 hypothetical protein MGC11308 ESPL1 8 extra spindle poles like 1 (S. cerevisiae) PFDN5 12q13.1 prefoldin 5 C12orf10 12q13 chromosome 12 open reading frame 10 AAAS 12q13 achalasia, adrenocortical insufficiency, alacrimia (Allgrove, triple-A) SP7 12q12 Sp7 transcription factor SP1 12q13.1 Sp1 transcription factor AMHR2 12q13 anti-Mullerian hormone receptor, type II DKFZP564J157 12q12 DKFZp564J157 protein PCBP2 12q13.12-q13.13 poly(rC) binding protein 2 MAP3K12 12q13 mitogen-activated protein kinase kinase kinase 12 TARBP2 12q12-q13 TAR (HIV) RNA binding protein 2 NPFF 12q13.13 neuropeptide FF-amide peptide precursor FLJ30317 12q13.13 hypothetical protein FLJ30317 ATF7 12q13 activating transcription factor 7 LOC341412 12q13.13 similar to ribosomal protein L31 ATP5G2 12q13.13 ATP synthase, H+ transporting, mitochondrial F0 complex, subunit c (subunit 9), isoform 2 KIAA1536 12q13.13 KIAA1536 protein HOXC13 12q13.3 homeo box C13 HOXC12 12q13.3 homeo box C12
    TRANSCRIPTS type messenger
    text many transcripts resulting from alternative splicing pathways (Makeyev)
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    15 splicing 3187 - 366 - 1996 8833161
    alternative acceptor site exon 8
    15 splicing 3175 - 362 - 1996 8833161
    lacking exon 8a
    14 splicing 3082 - 331 - 1996 8833161
    lacking exon 9
    15 splicing 3184 - 365 - 1996 8833161
    lacking 10a
    15 splicing 3172 - 361 - 1996 8833161
    alternative acceptor site at 5' end of exon 11
    13 - 3043 - 318 - 1996 8833161
    14 - 3094 - 335 - 1996 8833161
    Type ubiquitous
       expressed in (based on citations)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Digestiveintestinesmall intestine  highly
    Endocrineneuroendocrinepituitary  highly
    Reproductivefemale systemuteruscervix highly
     male systemtestis   
    Respiratoryrespiratory tractlarynx  highly
    SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
    SystemCellPubmedSpeciesStageRna symbol
    cell lineage
    cell lines
    at STAGE
  • three K homology (KH) motifs, playing an important role in the regulation of translation of eukaryotic mRNA
    interspecies homolog to murine Pcbp2
    intraspecies paralog to PCBP1
    paralog to PCBP3
    paralog to PCBP4
    CATEGORY RNA associated
    SUBCELLULAR LOCALIZATION     intracellular
    basic FUNCTION
  • functioning as translational coactivators of poliovirus RNA via a sequence-specific interaction with stem-loop IV of the IRES and promote poliovirus RNA replication by binding to its 5'-terminal cloverleaf structure
  • implicated in translational control of the 15-lipoxygenase mRNA, human Papillomavirus type 16 L2 mRNA, and hepatitis A virus RNA
  • implicated in control of RNA stability and translation and selective cap-independent transcription
  • playing a part in formation of a sequence-specific alpha-globin mRNP complex which is associated with alpha-globin mRNA stability
  • involved in the selective expression of cell survival factors through posttranslational events
  • with CNBP, stimulate translation of the ornithine decarboxylase (ODC) internal ribosomal entry site (Gerbasi 2007)
  • appeared to function as part of a larger holo-ITAF ribonucleoprotein complex (Gerbasi 2007)
  • may play an important role in the IFNA response against HCV (hepatitis C virus) and may benefit the HCV clinical therapy
  • broad role for PCBP1 and PCBP2 in delivering iron to cytosolic nonheme iron enzymes
  • a feedback inhibitor of mitochondrial antiviral signaling that facilitates its degradation after viral infection
  • PCBP1 and PCBP2 may serve as iron chaperones to multiple classes of cytosolic nonheme iron enzymes and may have a particular role in restoring metal cofactors that are spontaneously lost in iron deficient cells
  • CELLULAR PROCESS protein, translation regulation
    a component
    RNA binding
    small molecule
  • binding to BCR-ABL
  • binding partner of MAPKAP1
  • induced after viral infection, and its interaction with MAVS led to proteasomal degradation of MAVS (is recruited the HECT domain-containing E3 ligase ITCH to polyubiquitinate and degrade MAVS
  • negative regulator in MAVS-mediated signaling
  • SRSF4 binds to the proximal downstream intron of MAPT exon 10 at the FTDP-17 hotspot region and interacts with RBMX and PCBP2 (increased exon 10 inclusion in FTDP mutants may arise from weakened SRSF4 binding)
  • associated with DICER and promotes the processing of miRNA precursors (Cytosolic iron could modulate this association, as well as the multimerization of PCBP2 and its ability to bind to miRNA precursors, which can alter the processing of miRNA precursors)
  • PCBP1 and PCBP2 deliver iron to deoxyhypusine hydroxylase (DOHH), the dinuclear iron enzyme required for hypusine modification of the translation factor
  • cell & other
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --over  
    abrogated cellular responses to viral infection, whereas knockdown of PCBP2 exerted the opposite effect
    Variant & Polymorphism
    Candidate gene
    Therapy target