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    PPP1R12A protein phosphatase 1, regulatory subunit 12A [ Homo sapiens (human) ]

    Gene ID: 4659, updated on 11-May-2013
    Official Symbol
    PPP1R12Aprovided by HGNC
    Official Full Name
    protein phosphatase 1, regulatory subunit 12Aprovided by HGNC
    Primary source
    HGNC:7618
    See related
    Ensembl:ENSG00000058272; HPRD:03606; MIM:602021; Vega:OTTHUMG00000170100
    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
    MBS; M130; MYPT1
    Summary
    Myosin phosphatase target subunit 1, which is also called the myosin-binding subunit of myosin phosphatase, is one of the subunits of myosin phosphatase. Myosin phosphatase regulates the interaction of actin and myosin downstream of the guanosine triphosphatase Rho. The small guanosine triphosphatase Rho is implicated in myosin light chain (MLC) phosphorylation, which results in contraction of smooth muscle and interaction of actin and myosin in nonmuscle cells. The guanosine triphosphate (GTP)-bound, active form of RhoA (GTP.RhoA) specifically interacted with the myosin-binding subunit (MBS) of myosin phosphatase, which regulates the extent of phosphorylation of MLC. Rho-associated kinase (Rho-kinase), which is activated by GTP. RhoA, phosphorylated MBS and consequently inactivated myosin phosphatase. Overexpression of RhoA or activated RhoA in NIH 3T3 cells increased phosphorylation of MBS and MLC. Thus, Rho appears to inhibit myosin phosphatase through the action of Rho-kinase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2009]
    Location :
    12q15-q21
    Sequence :
    Chromosome: 12; NC_000012.11 (80167343..80329235, complement)
    See PPP1R12A in Epigenomics, MapViewer

    Chromosome 12 - NC_000012.11Genomic Context describing neighboring genes Neighboring gene synaptotagmin I Neighboring gene microRNA 1252 Neighboring gene PRKC, apoptosis, WT1, regulator Neighboring gene heat shock 60kDa protein 1 (chaperonin) pseudogene 20 Neighboring gene ribosomal protein L7 pseudogene 38

    GeneRIFs: Gene References Into Functions What's a GeneRIF?

    Protein Gene Interaction Pubs
    Tat, p14 tat Treatment of human brain endothelial cells with Tat markedly elevate GTP-RhoA levels and the potential downstream effectors, such as myosin phosphatase target subunit 1 and myosin light chain PubMed
    nucleocapsid gag HIV-1 NC is identified to have a physical interaction with protein phosphatase 1, regulatory subunit 12A (PPP1R12A; YMPT1) in human HEK293 and/or Jurkat cell lines by using affinity tagging and purification mass spectrometry analyses PubMed

    Go to the HIV-1, Human Protein Interaction Database

    Products Interactant Other Gene Complex Source Pubs Description
    NP_002471.1 NP_004400.4 DMPK    BIND  PubMed DMPK interacts with MYPT1. This interaction was modelled on a demonstrated interaction between chicken MYPT1 and DMPK from an unspecified source. 
    NP_002471.1 NP_004504.3 IL16    BIND  PubMed The PDZ2 domain of pro-IL-16 interacts with the carboxy terminal of MYPT1. 
    O14974 Q09013 DMPK    HPRD  PubMed  
    O14974 Q14005 IL16    HPRD  PubMed  
    O14974 Q13418 ILK    HPRD  PubMed  
    O14974 Myosin phosphatase Rho interacting protein MPRIP    HPRD  PubMed  
    O14974 P14619 PRKG1    HPRD  PubMed  
    O14974 P61586 RHOA    HPRD  PubMed  
    O14974 Q13464 ROCK1    HPRD  PubMed  
    O14974 O75116 ROCK2    HPRD  PubMed  
    O14974 P61981 YWHAG    HPRD  PubMed  
    BioGRID:110742 BioGRID:123290 AARSD1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:115403 ACTR3    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:115415 ARPC2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:106902 ARRB2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:117343 ATXN10    BioGRID  PubMed Two-hybrid 
    BioGRID:110742 BioGRID:120726 CDV3    BioGRID  PubMed Co-fractionation 
    BioGRID:110742 BioGRID:114032 CUL1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:198624 Cdk1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:216776 Cep72    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:199254 Dync1h1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:108309 ELAVL1    BioGRID  PubMed Affinity Capture-RNA 
    BioGRID:110742 BioGRID:199505 Erh    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:117646 FBXO25    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:107208 FMNL1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:119613 HDAC7    BioGRID  PubMed Affinity Capture-MS; Affinity Capture-Western 
    BioGRID:110742 BioGRID:231085 Haus3    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:109647 IDH3G    BioGRID  PubMed Co-fractionation 
    BioGRID:110742 BioGRID:109816 IL16    BioGRID  PubMed Affinity Capture-Western; Two-hybrid 
    BioGRID:110742 BioGRID:116667 KDM1A    BioGRID  PubMed Affinity Capture-MS; Affinity Capture-Western; Biochemical Activity; Reconstituted Complex 
    BioGRID:110742 BioGRID:122098 LEPRE1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:125700 LRRK2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:110954 NRD1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:120236 NSUN2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:116335 NUDT5    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:119376 NUSAP1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:120779 OSGEP    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:116625 PAXIP1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:111223 PFDN1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:111226 PFDN5    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:111494 PPP1CB    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:111578 PRKG1    BioGRID  PubMed Reconstituted Complex 
    BioGRID:110742 BioGRID:123236 PUS1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:238351 Poc1b    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:106880 RHOA    BioGRID  PubMed Co-fractionation 
    BioGRID:110742 BioGRID:112037 RPA1    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:121820 RPRD1B    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:123332 SETD7    BioGRID  PubMed Biochemical Activity 
    BioGRID:110742 BioGRID:112373 SIAH2    BioGRID  PubMed Affinity Capture-Western; Two-hybrid 
    BioGRID:110742 BioGRID:215561 Sass6    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:203518 Stag2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:113027 TPP2    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:124794 TRIM47    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:116782 TTLL12    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:214351 Trim69    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:113164 UBC    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:121574 XPO5    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:110742 BioGRID:1205537 gag    BioGRID  PubMed Affinity Capture-MS 
    • Cell Cycle, organism-specific biosystem (from REACTOME)
      Cell Cycle, organism-specific biosystem
      Cell Cycle
    • Cell Cycle, Mitotic, organism-specific biosystem (from REACTOME)
      Cell Cycle, Mitotic, organism-specific biosystemThe replication of the genome and the subsequent segregation of chromosomes into daughter cells are controlled by a series of events collectively known as the cell cycle. DNA replication is carried o...
    • Focal Adhesion, organism-specific biosystem (from WikiPathways)
      Focal Adhesion, organism-specific biosystemCell-matrix adhesions play essential roles in important biological processes including cell motility, cell proliferation, cell differentiation, regulation of gene expression and cell survival. At the...
    • Focal adhesion, organism-specific biosystem (from KEGG)
      Focal adhesion, organism-specific biosystemCell-matrix adhesions play essential roles in important biological processes including cell motility, cell proliferation, cell differentiation, regulation of gene expression and cell survival. At the...
    • Focal adhesion, conserved biosystem (from KEGG)
      Focal adhesion, conserved biosystemCell-matrix adhesions play essential roles in important biological processes including cell motility, cell proliferation, cell differentiation, regulation of gene expression and cell survival. At the...
    • G2/M Transition, organism-specific biosystem (from REACTOME)
      G2/M Transition, organism-specific biosystemCyclin A can also form complexes with Cdc2 (Cdk1). Together with three B-type cyclins, Cdc2 (Cdk1) regulates the transition from G2 into mitosis. These complexes are activated by dephosphorylation of...
    • Long-term potentiation, organism-specific biosystem (from KEGG)
      Long-term potentiation, organism-specific biosystemHippocampal long-term potentiation (LTP), a long-lasting increase in synaptic efficacy, is the molecular basis for learning and memory. Tetanic stimulation of afferents in the CA1 region of the hippo...
    • Long-term potentiation, conserved biosystem (from KEGG)
      Long-term potentiation, conserved biosystemHippocampal long-term potentiation (LTP), a long-lasting increase in synaptic efficacy, is the molecular basis for learning and memory. Tetanic stimulation of afferents in the CA1 region of the hippo...
    • Mitotic G2-G2/M phases, organism-specific biosystem (from REACTOME)
      Mitotic G2-G2/M phases, organism-specific biosystem
      Mitotic G2-G2/M phases
    • PLK1 signaling events, organism-specific biosystem (from Pathway Interaction Database)
      PLK1 signaling events, organism-specific biosystem
      PLK1 signaling events
    • Proteoglycans in cancer, organism-specific biosystem (from KEGG)
      Proteoglycans in cancer, organism-specific biosystemMany proteoglycans (PGs) in the tumor microenvironment have been shown to be key macromolecules that contribute to biology of various types of cancer including proliferation, adhesion, angiogenesis a...
    • Proteoglycans in cancer, conserved biosystem (from KEGG)
      Proteoglycans in cancer, conserved biosystemMany proteoglycans (PGs) in the tumor microenvironment have been shown to be key macromolecules that contribute to biology of various types of cancer including proliferation, adhesion, angiogenesis a...
    • Regulation of Actin Cytoskeleton, organism-specific biosystem (from WikiPathways)
      Regulation of Actin Cytoskeleton, organism-specific biosystemhttp://www.genome.jp/kegg/pathway/hsa/hsa04810.html
    • Regulation of PLK1 Activity at G2/M Transition, organism-specific biosystem (from REACTOME)
      Regulation of PLK1 Activity at G2/M Transition, organism-specific biosystemThe interaction of PLK1 with OPTN (optineurin) provides a negative-feedback mechanism for regulation of PLK1 activity. Phosphorylated PLK1 binds and phosphorylates OPTN associated with the Golgi memb...
    • Regulation of actin cytoskeleton, organism-specific biosystem (from KEGG)
      Regulation of actin cytoskeleton, organism-specific biosystem
      Regulation of actin cytoskeleton
    • Regulation of actin cytoskeleton, conserved biosystem (from KEGG)
      Regulation of actin cytoskeleton, conserved biosystem
      Regulation of actin cytoskeleton
    • RhoA signaling pathway, organism-specific biosystem (from Pathway Interaction Database)
      RhoA signaling pathway, organism-specific biosystem
      RhoA signaling pathway
    • Vascular smooth muscle contraction, organism-specific biosystem (from KEGG)
      Vascular smooth muscle contraction, organism-specific biosystemThe vascular smooth muscle cell (VSMC) is a highly specialized cell whose principal function is contraction. On contraction, VSMCs shorten, thereby decreasing the diameter of a blood vessel to regula...
    • Vascular smooth muscle contraction, conserved biosystem (from KEGG)
      Vascular smooth muscle contraction, conserved biosystemThe vascular smooth muscle cell (VSMC) is a highly specialized cell whose principal function is contraction. On contraction, VSMCs shorten, thereby decreasing the diameter of a blood vessel to regula...

    Markers

    Homology

    Clone Names

    • MGC133042

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    14-3-3 protein binding IDA
    Inferred from Direct Assay
    more info
     
    enzyme inhibitor activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    phosphatase regulator activity IDA
    Inferred from Direct Assay
    more info
     
    phosphatase regulator activity IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    protein binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    protein kinase binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    signal transducer activity NAS
    Non-traceable Author Statement
    more info
    PubMed 
    Process Evidence Code Pubs
    G2/M transition of mitotic cell cycle TAS
    Traceable Author Statement
    more info
     
    centrosome organization IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    mitosis IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    mitotic cell cycle TAS
    Traceable Author Statement
    more info
     
    negative regulation of catalytic activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    positive regulation of transcription from RNA polymerase II promoter IDA
    Inferred from Direct Assay
    more info
    PubMed 
    protein dephosphorylation IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    regulation of cell adhesion IDA
    Inferred from Direct Assay
    more info
     
    regulation of myosin-light-chain-phosphatase activity IDA
    Inferred from Direct Assay
    more info
     
    regulation of nucleocytoplasmic transport IEA
    Inferred from Electronic Annotation
    more info
     
    signal transduction NAS
    Non-traceable Author Statement
    more info
    PubMed 
    Component Evidence Code Pubs
    PTW/PP1 phosphatase complex IDA
    Inferred from Direct Assay
    more info
     
    centrosome IDA
    Inferred from Direct Assay
    more info
    PubMed 
    contractile fiber IDA
    Inferred from Direct Assay
    more info
     
    kinetochore IDA
    Inferred from Direct Assay
    more info
    PubMed 
    nucleoplasm TAS
    Traceable Author Statement
    more info
     
    Preferred Names
    protein phosphatase 1 regulatory subunit 12A
    Names
    protein phosphatase 1 regulatory subunit 12A
    myosin binding subunit
    myosin phosphatase, target subunit 1
    myosin phosphatase-targeting subunit 1
    protein phosphatase myosin-binding subunit
    protein phosphatase 1, regulatory (inhibitor) subunit 12A

    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_001143885.1NP_001137357.1  protein phosphatase 1 regulatory subunit 12A isoform a

      Status: REVIEWED

      Description
      Transcript Variant: This variant (2) differs in the 5' UTR compared to variant 1. Variants 1 and 2 both encode isoform a.
      Source sequence(s)
      AC073569, AF458589, AK314193, BC111752
      Consensus CDS
      CCDS44947.1
      UniProtKB/TrEMBL
      B2RAH5
      UniProtKB/Swiss-Prot
      O14974
      Related
      ENSP00000261207, ENST00000261207
      Conserved Domains (3) summary
      cd00204
      Location:44145
      Blast Score: 272
      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:44136
      Blast Score: 235
      Ank_2; Ankyrin repeats (3 copies)
      pfam13637
      Location:199252
      Blast Score: 163
      Ank_4; Ankyrin repeats (many copies)
    2. NM_001143886.1NP_001137358.1  protein phosphatase 1 regulatory subunit 12A isoform b

      Status: REVIEWED

      Description
      Transcript Variant: This variant (3) differs in the 5' UTR and coding sequence compared to variant 1. The resulting isoform (b) is shorter at the N-terminus compared to isoform a.
      Source sequence(s)
      AC073569, AK302692, BC111752
      Consensus CDS
      CCDS44948.1
      UniProtKB/Swiss-Prot
      O14974
      Conserved Domains (3) summary
      cd00204
      Location:13165
      Blast Score: 251
      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:23142
      Blast Score: 145
      Ank_2; Ankyrin repeats (3 copies)
      pfam13637
      Location:112165
      Blast Score: 165
      Ank_4; Ankyrin repeats (many copies)
    3. NM_001244990.1NP_001231919.1  protein phosphatase 1 regulatory subunit 12A isoform c

      Status: REVIEWED

      Description
      Transcript Variant: This variant (4) differs in the 5' UTR and lacks an exon in the coding region, compared to variant 1. The encoded isoform (c) is shorter than isoform a.
      Source sequence(s)
      AC018476, AC073569, AC074270
      Consensus CDS
      CCDS58260.1
      UniProtKB/Swiss-Prot
      O14974
      Related
      ENSP00000416769, OTTHUMP00000242813, ENST00000437004, OTTHUMT00000407255
      Conserved Domains (3) summary
      cd00204
      Location:44145
      Blast Score: 274
      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:44136
      Blast Score: 237
      Ank_2; Ankyrin repeats (3 copies)
      pfam13637
      Location:199252
      Blast Score: 165
      Ank_4; Ankyrin repeats (many copies)
    4. NM_001244992.1NP_001231921.1  protein phosphatase 1 regulatory subunit 12A isoform d

      Status: REVIEWED

      Description
      Transcript Variant: This variant (5) lacks an exon in the coding region, compared to variant 1. The encoded isoform (d) is shorter than isoform a.
      Source sequence(s)
      AC018476, AC073569, AC074270
      Consensus CDS
      CCDS58259.1
      UniProtKB/Swiss-Prot
      O14974
      Conserved Domains (3) summary
      cd00204
      Location:44145
      Blast Score: 272
      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:44136
      Blast Score: 236
      Ank_2; Ankyrin repeats (3 copies)
      pfam13637
      Location:199252
      Blast Score: 164
      Ank_4; Ankyrin repeats (many copies)
    5. NM_002480.2NP_002471.1  protein phosphatase 1 regulatory subunit 12A isoform a

      Status: REVIEWED

      Description
      Transcript Variant: This variant (1) represents the longest transcript and encodes the longer isoform (a). Variants 1 and 2 both encode isoform a.
      Source sequence(s)
      AC073569, AK314193, BC111752, DC350703
      Consensus CDS
      CCDS44947.1
      UniProtKB/TrEMBL
      B2RAH5
      UniProtKB/Swiss-Prot
      O14974
      Related
      ENSP00000389168, OTTHUMP00000242812, ENST00000450142, OTTHUMT00000407254
      Conserved Domains (3) summary
      cd00204
      Location:44145
      Blast Score: 272
      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:44136
      Blast Score: 235
      Ank_2; Ankyrin repeats (3 copies)
      pfam13637
      Location:199252
      Blast Score: 163
      Ank_4; Ankyrin repeats (many copies)

    RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 104

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

    Reference GRCh37.p10 Primary Assembly

    Genomic

    1. NC_000012.11 Reference GRCh37.p10 Primary Assembly

      Range
      80167343..80329235, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate HuRef

    Genomic

    1. AC_000144.1 Alternate HuRef

      Range
      77223683..77385520, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate CHM1_1.0

    Genomic

    1. NC_018923.1 Alternate CHM1_1.0

      Range
      80014831..80176663, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

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