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PPP1R13L protein phosphatase 1 regulatory subunit 13 like [ Homo sapiens (human) ]

Gene ID: 10848, updated on 9-Aug-2026
Official Symbol
PPP1R13Lprovided by HGNC
Official Full Name
protein phosphatase 1 regulatory subunit 13 likeprovided by HGNC
Primary source
HGNC:HGNC:18838
See related
Ensembl:ENSG00000104881 MIM:607463; AllianceGenome:HGNC:18838
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
RAI; RAI4; ARCME; CMAEA; IASPP; NKIP1
Summary
IASPP is one of the most evolutionarily conserved inhibitors of p53 (TP53; MIM 191170), whereas ASPP1 (MIM 606455) and ASPP2 (MIM 602143) are activators of p53.[supplied by OMIM, Mar 2008]
Expression
Broad expression in skin (RPKM 27.0), placenta (RPKM 6.4) and 14 other tissues See more
Orthologs
Try the new Gene page
Try the new Transcripts and proteins table
See PPP1R13L in Genome Data Viewer
Location:
19q13.32
Exon count:
15
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 19 NC_000019.10 (45379638..45406361, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 19 NC_060943.1 (48206875..48234343, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (45882896..45909619, complement)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10761 Neighboring gene ribosomal protein S16 pseudogene 9 Neighboring gene Sharpr-MPRA regulatory region 10062 Neighboring gene kinesin light chain 3 Neighboring gene ReSE screen-validated silencer GRCh37_chr19:45860553-45860719 Neighboring gene ERCC excision repair 2, TFIIH core complex helicase subunit Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45872585-45873426 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14791 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45878599-45879436 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45879437-45880275 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14792 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45894822-45895340 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45895341-45895857 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45901839-45902837 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10762 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10763 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:45908213-45909008 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14794 Neighboring gene RNA polymerase I subunit G Neighboring gene ERCC excision repair 1, endonuclease non-catalytic subunit Neighboring gene H3K4me1 hESC enhancer GRCh37_chr19:45923066-45923566 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14795 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 14796 Neighboring gene Sharpr-MPRA regulatory region 13779 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10764 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10765 Neighboring gene microRNA 6088

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables cadherin binding HDA PubMed 
enables identical protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables transcription corepressor activity TAS
Traceable Author Statement
more info
PubMed 
Component Evidence Code Pubs
located_in cytoplasm EXP
Inferred from Experiment
more info
PubMed 
located_in cytoplasm IEA
Inferred from Electronic Annotation
more info
 
located_in cytosol IDA
Inferred from Direct Assay
more info
 
located_in nucleoplasm TAS
Traceable Author Statement
more info
 
located_in nucleus EXP
Inferred from Experiment
more info
PubMed 
located_in nucleus IEA
Inferred from Electronic Annotation
more info
 
located_in nucleus TAS
Traceable Author Statement
more info
PubMed 
Preferred Names
relA-associated inhibitor
Names
NFkB interacting protein 1
PPP1R13B-like protein
inhibitor of ASPP protein
inhibitor of apoptosis stimulating protein of p53
protein iASPP
protein phosphatase 1, regulatory (inhibitor) subunit 13 like
retinoic acid induced 4

NEW Try the new Transcript table

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_001142502.2NP_001135974.1  relA-associated inhibitor

    See identical proteins and their annotated locations for NP_001135974.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (1) represents the longer transcript. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC092309, BC064913, DB209153
    Consensus CDS
    CCDS33050.1
    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
    Related
    ENSP00000403902.1, ENST00000418234.7
    Conserved Domains (4) summary
    cd11952
    Location:761817
    SH3_iASPP; Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP)
    cd00204
    Location:626748
    ANK; ankyrin repeats; ankyrin repeats mediate protein-protein interactions in very diverse families of proteins. The number of ANK repeats in a protein can range from 2 to over 20 (ankyrins, for example). ANK repeats may occur in combinations with other ...
    pfam12796
    Location:631722
    Ank_2; Ankyrin repeats (3 copies)
    sd00045
    Location:631657
    ANK; ANK repeat [structural motif]
  2. NM_006663.4NP_006654.2  relA-associated inhibitor

    See identical proteins and their annotated locations for NP_006654.2

    Status: VALIDATED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR compared to variant 1. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AC092309, BC032298
    Consensus CDS
    CCDS33050.1
    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
    Related
    ENSP00000354218.4, ENST00000360957.10
    Conserved Domains (4) summary
    cd11952
    Location:761817
    SH3_iASPP; Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP)
    cd00204
    Location:626748
    ANK; ankyrin repeats; ankyrin repeats mediate protein-protein interactions in very diverse families of proteins. The number of ANK repeats in a protein can range from 2 to over 20 (ankyrins, for example). ANK repeats may occur in combinations with other ...
    pfam12796
    Location:631722
    Ank_2; Ankyrin repeats (3 copies)
    sd00045
    Location:631657
    ANK; ANK repeat [structural motif]

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p14 Primary Assembly

    Range
    45379638..45406361 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_017026178.2XP_016881667.1  relA-associated inhibitor isoform X1

    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
    Related
    ENSP00000533798.1, ENST00000863739.2
    Conserved Domains (4) summary
    cd11952
    Location:761817
    SH3_iASPP; Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP)
    cd00204
    Location:626748
    ANK; ankyrin repeats; ankyrin repeats mediate protein-protein interactions in very diverse families of proteins. The number of ANK repeats in a protein can range from 2 to over 20 (ankyrins, for example). ANK repeats may occur in combinations with other ...
    pfam12796
    Location:631722
    Ank_2; Ankyrin repeats (3 copies)
    sd00045
    Location:631657
    ANK; ANK repeat [structural motif]
  2. XM_017026177.2XP_016881666.1  relA-associated inhibitor isoform X1

    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
    Conserved Domains (4) summary
    cd11952
    Location:761817
    SH3_iASPP; Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP)
    cd00204
    Location:626748
    ANK; ankyrin repeats; ankyrin repeats mediate protein-protein interactions in very diverse families of proteins. The number of ANK repeats in a protein can range from 2 to over 20 (ankyrins, for example). ANK repeats may occur in combinations with other ...
    pfam12796
    Location:631722
    Ank_2; Ankyrin repeats (3 copies)
    sd00045
    Location:631657
    ANK; ANK repeat [structural motif]
  3. XM_017026179.2XP_016881668.1  relA-associated inhibitor isoform X2

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060943.1 Alternate T2T-CHM13v2.0

    Range
    48206875..48234343 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054319575.1XP_054175550.1  relA-associated inhibitor isoform X1

    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
  2. XM_054319574.1XP_054175549.1  relA-associated inhibitor isoform X1

    UniProtKB/Swiss-Prot
    Q2PNZ9, Q5DU71, Q5I1X4, Q6P1R7, Q6PKF8, Q8WUF5, Q9Y290
  3. XM_054319576.1XP_054175551.1  relA-associated inhibitor isoform X3