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PCBP2 poly(rC) binding protein 2 [ Homo sapiens (human) ]

Gene ID: 5094, updated on 5-Sep-2021

Summary

Official Symbol
PCBP2provided by HGNC
Official Full Name
poly(rC) binding protein 2provided by HGNC
Primary source
HGNC:HGNC:8648
See related
Ensembl:ENSG00000197111 MIM:601210
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
HNRPE2; HNRNPE2; hnRNP-E2
Summary
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. [provided by RefSeq, Jan 2018]
Expression
Ubiquitous expression in kidney (RPKM 155.8), thyroid (RPKM 127.6) and 25 other tissues See more
Orthologs
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Genomic context

See PCBP2 in Genome Data Viewer
Location:
12q13.13
Exon count:
15
Annotation release Status Assembly Chr Location
109.20210514 current GRCh38.p13 (GCF_000001405.39) 12 NC_000012.12 (53452102..53481162)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 12 NC_000012.11 (53845886..53874946)

Chromosome 12 - NC_000012.12Genomic Context describing neighboring genes Neighboring gene anti-Mullerian hormone receptor type 2 Neighboring gene proline rich 13 Neighboring gene PCBP2 overlapping transcript 1 Neighboring gene mitogen-activated protein kinase kinase kinase 12 Neighboring gene ATF7-NPFF readthrough Neighboring gene TARBP2 subunit of RISC loading complex Neighboring gene neuropeptide FF-amide peptide precursor

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Rev rev HIV-1 Rev interacts with the heterogeneous nuclear ribonucleoproteins (hnRNP) E2 PubMed
Tat tat Poly(rC) binding protein 2 (PCBP2) is identified to interact with HIV-1 Tat mutant Nullbasic in HeLa cells by LC MS/MS PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Clone Names

  • MGC110998

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables RNA binding HDA PubMed 
enables RNA binding IDA
Inferred from Direct Assay
more info
PubMed 
enables enzyme binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables mRNA binding IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables single-stranded DNA binding IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
enables ubiquitin protein ligase binding IPI
Inferred from Physical Interaction
more info
PubMed 
Component Evidence Code Pubs
is_active_in cytoplasm IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in cytoplasm IDA
Inferred from Direct Assay
more info
PubMed 
located_in cytosol IDA
Inferred from Direct Assay
more info
 
located_in cytosol TAS
Traceable Author Statement
more info
 
located_in extracellular exosome HDA PubMed 
located_in focal adhesion HDA PubMed 
located_in membrane HDA PubMed 
is_active_in nucleoplasm IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in nucleoplasm IDA
Inferred from Direct Assay
more info
 
located_in nucleoplasm TAS
Traceable Author Statement
more info
 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in nucleus IDA
Inferred from Direct Assay
more info
PubMed 

General protein information

Preferred Names
poly(rC)-binding protein 2
Names
alpha-CP2
epididymis secretory sperm binding protein
heterogeneous nuclear ribonucleoprotein E2
heterogenous nuclear ribonucleoprotein E2
hnRNP E2

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001098620.3NP_001092090.1  poly(rC)-binding protein 2 isoform c

    See identical proteins and their annotated locations for NP_001092090.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) uses an alternate in-frame splice site and lacks an alternate in-frame exon compared to variant 1. The resulting isoform (c) has the same N- and C-termini but is shorter compared to isoform a.
    Source sequence(s)
    AB188306, AC023509, AK130583, BF509278
    Consensus CDS
    CCDS44903.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000352228.5, ENST00000359282.9
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:250325
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  2. NM_001128911.2NP_001122383.1  poly(rC)-binding protein 2 isoform d

    See identical proteins and their annotated locations for NP_001122383.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) uses an alternate in-frame splice site compared to variant 1. The resulting isoform (d) has the same N- and C-termini but is one amino acid shorter compared to isoform a.
    Source sequence(s)
    AB188306, AC023509, AK130583, BF509278, X78136
    Consensus CDS
    CCDS44901.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000408949.2, ENST00000439930.7
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:284359
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  3. NM_001128912.2NP_001122384.1  poly(rC)-binding protein 2 isoform e

    See identical proteins and their annotated locations for NP_001122384.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (5) uses two alternate in-frame splice sites compared to variant 1. The resulting isoform (e) has the same N- and C-termini but is five amino acids shorter compared to isoform a.
    Source sequence(s)
    AB188306, AB208825, AC023509, AK130583, BF509278
    Consensus CDS
    CCDS55830.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000448927.2, ENST00000552296.6
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:280355
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  4. NM_001128913.2NP_001122385.1  poly(rC)-binding protein 2 isoform f

    See identical proteins and their annotated locations for NP_001122385.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (6) lacks an alternate in-frame exon compared to variant 1. The resulting isoform (f) has the same N- and C-termini but is shorter compared to isoform a.
    Source sequence(s)
    AB188306, AC023509, AK130583, BC107688, BF509278
    Consensus CDS
    CCDS44902.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000394116.1, ENST00000447282.5
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:254329
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  5. NM_001128914.2NP_001122386.1  poly(rC)-binding protein 2 isoform g

    See identical proteins and their annotated locations for NP_001122386.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (7) uses an alternate in-frame splice site and lacks two alternate in-frame exons compared to variant 1. The resulting isoform (g) has the same N- and C-termini but is shorter compared to isoform a.
    Source sequence(s)
    AB188306, AC023509, AK130583, AK225357, BF509278
    Consensus CDS
    CCDS44904.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000390304.1, ENST00000437231.5
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:237312
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  6. NM_005016.6NP_005007.2  poly(rC)-binding protein 2 isoform a

    See identical proteins and their annotated locations for NP_005007.2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (a).
    Source sequence(s)
    AB188306, AC023509, AK130583, BC035420, BF509278
    Consensus CDS
    CCDS44900.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000352438.5, ENST00000359462.9
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:285360
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
  7. NM_031989.5NP_114366.1  poly(rC)-binding protein 2 isoform b

    See identical proteins and their annotated locations for NP_114366.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) uses an alternate in-frame splice site compared to variant 1. The resulting isoform (b) has the same N- and C-termini but is shorter compared to isoform a.
    Source sequence(s)
    AB188306, AC023509, AK130583, AK292141, BF509278
    Consensus CDS
    CCDS8859.1
    UniProtKB/Swiss-Prot
    Q15366
    Related
    ENSP00000448762.2, ENST00000546463.6
    Conserved Domains (3) summary
    cd22515
    Location:1382
    KH-I_PCBP1_2_rpt1; first type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22518
    Location:92169
    KH-I_PCBP1_2_rpt2; second type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins
    cd22521
    Location:281356
    KH-I_PCBP1_2_rpt3; third type I K homology (KH) RNA-binding domain found in poly(rC)-binding protein 1 (PCBP1) and similar proteins

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20210514

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000012.12 Reference GRCh38.p13 Primary Assembly

    Range
    53452102..53481162
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)
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