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    DMPK dystrophia myotonica-protein kinase [ Homo sapiens (human) ]

    Gene ID: 1760, updated on 19-May-2013
    Official Symbol
    DMPKprovided by HGNC
    Official Full Name
    dystrophia myotonica-protein kinaseprovided by HGNC
    Primary source
    HGNC:2933
    See related
    Ensembl:ENSG00000104936; HPRD:05645; MIM:605377; Vega:OTTHUMG00000182334
    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
    DM; DM1; DMK; MDPK; DM1PK; MT-PK
    Summary
    The protein encoded by this gene is a serine-threonine kinase that is closely related to other kinases that interact with members of the Rho family of small GTPases. Substrates for this enzyme include myogenin, the beta-subunit of the L-type calcium channels, and phospholemman. The 3' untranslated region of this gene contains 5-37 copies of a CTG trinucleotide repeat. Expansion of this unstable motif to 50-5,000 copies causes myotonic dystrophy type I, which increases in severity with increasing repeat element copy number. Repeat expansion is associated with condensation of local chromatin structure that disrupts the expression of genes in this region. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Jul 2008]
    Location :
    19q13.3
    Sequence :
    Chromosome: 19; NC_000019.9 (46272975..46285815, complement)
    See DMPK in Epigenomics, MapViewer

    Chromosome 19 - NC_000019.9Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC388553 Neighboring gene SIX homeobox 5 Neighboring gene dystrophia myotonica, WD repeat containing Neighboring gene radial spoke head 6 homolog A (Chlamydomonas)

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

    Steinert myotonic dystrophy syndrome

    Summary from GeneReviews: Myotonic Dystrophy Type 1 Go to GeneReviews

    Disease Characteristics
    Myotonic dystrophy type 1 (DM1) is a multisystem disorder that affects skeletal and smooth muscle as well as the eye, heart, endocrine system, and central nervous system. The clinical findings, which span a continuum from mild to severe, have been categorized into three somewhat overlapping phenotypes: mild, classic, and congenital. Mild DM1 is characterized by cataract and mild myotonia (sustained muscle contraction); life span is normal. Classic DM1 is characterized by muscle weakness and wasting, myotonia, cataract, and often cardiac conduction abnormalities; adults may become physically disabled and may have a shortened life span. Congenital DM1 is characterized by hypotonia and severe generalized weakness at birth, often with respiratory insufficiency and early death; intellectual disability is common.
    Diagnosis Testing
    DM1 is caused by expansion of a CTG trinucleotide repeat in the non-coding region of DMPK. The diagnosis of DM1 is suspected in individuals with characteristic muscle weakness and is confirmed by molecular genetic testing of DMPK. CTG repeat length exceeding 34 repeats is abnormal. Molecular genetic testing detects mutations in nearly 100% of affected individuals and is clinically available.
    Genetic Counseling
    DM1 is inherited in an autosomal dominant manner. Offspring of an individual with an expanded allele have a 50% chance of inheriting the mutant allele. Disease-causing alleles may expand in length during gametogenesis, resulting in the transmission of longer trinucleotide repeat alleles that may be associated with earlier onset and more severe disease than that observed in the parent. Prenatal testing is possible for pregnancies at increased risk when the diagnosis of DM1 has been confirmed by molecular genetic testing in an affected family member.
    References
    Products Interactant Other Gene Complex Source Pubs Description
    NM_004409.2 NP_006551.1 CELF1    BIND  PubMed Mutant DMPK mRNA interacts with CUGBP1. 
    NM_004409.2 NP_000957.1 RARG    BIND  PubMed Mutant DMPK mRNA interacts with RAR-gamma. 
    NM_004409.2 NP_612482.2 SP1    BIND  PubMed Mutant DMPK mRNA interacts with Sp1. 
    NP_004400.4 NP_002471.1 PPP1R12A    BIND  PubMed DMPK interacts with MYPT1. This interaction was modelled on a demonstrated interaction between chicken MYPT1 and DMPK from an unspecified source. 
    Q09013 P54259 ATN1    HPRD  PubMed  
    Q09013 P54253 ATXN1    HPRD  PubMed  
    Q09013 Q92879 CELF1    HPRD  PubMed  
    Q09013 O00168 FXYD1    HPRD  PubMed  
    Q09013 O95166 GABARAP    HPRD  PubMed  
    Q09013 Q16082 HSPB2    HPRD  PubMed  
    Q09013 P26678 PLN    HPRD  PubMed  
    Q09013 O14974 PPP1R12A    HPRD  PubMed  
    Q09013 P04049 RAF1    HPRD  PubMed  
    Q09013 Q9NRR5 UBQLN4    HPRD  PubMed  
    BioGRID:108100 BioGRID:106807 ANXA7    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:108156 ATN1    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:112217 ATXN1    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:119102 GEMIN4    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:109552 HSP90AA1    BioGRID  PubMed Affinity Capture-Luminescence 
    BioGRID:108100 BioGRID:109548 HSPB2    BioGRID  PubMed Affinity Capture-Western; Reconstituted Complex; Two-hybrid 
    BioGRID:108100 BioGRID:111317 PIN1    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:111817 RAC1    BioGRID  PubMed Reconstituted Complex 
    BioGRID:108100 BioGRID:112118 RPS10    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:116982 SIRT3    BioGRID  PubMed Positive Genetic 
    BioGRID:108100 BioGRID:112490 SMN1    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:112938 TK1    BioGRID  PubMed Two-hybrid 
    BioGRID:108100 BioGRID:113164 UBC    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:108100 BioGRID:121223 UBQLN4    BioGRID  PubMed Two-hybrid 

    Markers

    Potential readthrough

    Included gene: DMWD

    Homology

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    ATP binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    metal ion binding IEA
    Inferred from Electronic Annotation
    more info
     
    myosin phosphatase regulator activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    protein binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    protein serine/threonine kinase activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    Process Evidence Code Pubs
    cellular calcium ion homeostasis ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    muscle cell apoptotic process IDA
    Inferred from Direct Assay
    more info
    PubMed 
    nuclear envelope organization IMP
    Inferred from Mutant Phenotype
    more info
     
    protein phosphorylation IDA
    Inferred from Direct Assay
    more info
    PubMed 
    regulation of excitatory postsynaptic membrane potential involved in skeletal muscle contraction IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of heart contraction IDA
    Inferred from Direct Assay
    more info
    PubMed 
    regulation of myotube differentiation ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    regulation of skeletal muscle contraction by calcium ion signaling IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of sodium ion transport IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of synapse structural plasticity IEA
    Inferred from Electronic Annotation
    more info
     
    Component Evidence Code Pubs
    cytosol ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    endoplasmic reticulum membrane ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    integral to mitochondrial outer membrane IDA
    Inferred from Direct Assay
    more info
    PubMed 
    nuclear membrane ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    nuclear outer membrane IEA
    Inferred from Electronic Annotation
    more info
     
    plasma membrane ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    sarcoplasmic reticulum membrane ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    Preferred Names
    myotonin-protein kinase
    Names
    myotonin-protein kinase
    DM-kinase
    DM protein kinase
    DM1 protein kinase
    thymopoietin homolog
    myotonin protein kinase A
    myotonic dystrophy protein kinase
    myotonic dystrophy associated protein kinase
    NP_001075029.1
    NP_001075031.1
    NP_001075032.1
    NP_004400.4

    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.

    Genomic

    1. NG_009784.1 RefSeqGene

      Range
      5001..17841
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_001081560.1NP_001075029.1  myotonin-protein kinase isoform 3

      Status: REVIEWED

      Description
      Transcript Variant: This variant (3) has multiple differences in the presence and absence of exons at its 5' end and in the CDS, compared to variant 1. These differences produce a distinct 5' UTR, cause translation initiation at an alternative start codon, and the loss of an in-frame portion of the coding region, compared to variant 1. The encoded protein (isoform 3, also known as isoform 11) has a distinct N-terminus and is shorter than isoform 1.
      Source sequence(s)
      AC011530, AV655848, BC062553, L19268
      Consensus CDS
      CCDS46118.1
      UniProtKB/TrEMBL
      E5KR07
      UniProtKB/Swiss-Prot
      Q09013
      Related
      ENSP00000413417, OTTHUMP00000268968, ENST00000447742, OTTHUMT00000460575
      Conserved Domains (3) summary
      pfam08826
      Location:465525
      Blast Score: 246
      DMPK_coil; DMPK coiled coil domain like
      cd05597
      Location:69401
      Blast Score: 1662
      STKc_DMPK_like; Catalytic domain of Myotonic Dystrophy protein kinase-like Protein Serine/Threonine Kinases
      smart00220
      Location:71339
      Blast Score: 701
      S_TKc; Serine/Threonine protein kinases, catalytic domain
    2. NM_001081562.1NP_001075031.1  myotonin-protein kinase isoform 4

      Status: REVIEWED

      Description
      Transcript Variant: This variant (4) has multiple differences in the presence and absence of exons at its 5' end and in the CDS, compared to variant 1. These differences produce a distinct 5' UTR, and cause translation initiation at an alternative start codon, the loss of an in-frame portion of the coding region and a frameshift in the 3' coding region, compared to variant 1. The encoded protein (isoform 4) has a distinct N-terminus and a unique C-terminus, and is shorter than isoform 1.
      Source sequence(s)
      AC011530, AV655848, BC062553, S72883
      Consensus CDS
      CCDS46117.1
      UniProtKB/TrEMBL
      E5KR05
      UniProtKB/Swiss-Prot
      Q09013
      Related
      ENSP00000401753, OTTHUMP00000268969, ENST00000458663, OTTHUMT00000460576
      Conserved Domains (3) summary
      pfam08826
      Location:465525
      Blast Score: 249
      DMPK_coil; DMPK coiled coil domain like
      cd05597
      Location:69401
      Blast Score: 1666
      STKc_DMPK_like; Catalytic domain of Myotonic Dystrophy protein kinase-like Protein Serine/Threonine Kinases
      smart00220
      Location:71339
      Blast Score: 709
      S_TKc; Serine/Threonine protein kinases, catalytic domain
    3. NM_001081563.1NP_001075032.1  myotonin-protein kinase isoform 1

      Status: REVIEWED

      Description
      Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1), also known as Form I.
      Source sequence(s)
      AC011530, AV655848, BC062553, M87312
      Consensus CDS
      CCDS46119.1
      UniProtKB/TrEMBL
      E5KR08
      UniProtKB/Swiss-Prot
      Q09013
      Related
      ENSP00000345997, OTTHUMP00000269417, ENST00000343373, OTTHUMT00000461638
      Conserved Domains (3) summary
      pfam08826
      Location:480540
      Blast Score: 258
      DMPK_coil; DMPK coiled coil domain like
      cd05597
      Location:79416
      Blast Score: 1645
      STKc_DMPK_like; Catalytic domain of Myotonic Dystrophy protein kinase-like Protein Serine/Threonine Kinases
      smart00220
      Location:81349
      Blast Score: 706
      S_TKc; Serine/Threonine protein kinases, catalytic domain
    4. NM_004409.3NP_004400.4  myotonin-protein kinase isoform 2

      Status: REVIEWED

      Description
      Transcript Variant: This variant (2) has multiple differences in the presence and absence of exons at its 5' end, compared to variant 1. These differences produce a distinct 5' UTR and cause translation initiation at an alternative start codon, compared to variant 1. The encoded protein (isoform 2, also known as isoform 9) has a distinct N-terminus and is shorter than isoform 1.
      Source sequence(s)
      AC011530, AV655848, BC062553, BG706056
      Consensus CDS
      CCDS12674.1
      UniProtKB/TrEMBL
      E5KR06
      UniProtKB/Swiss-Prot
      Q09013
      Related
      ENSP00000291270, OTTHUMP00000268966, ENST00000291270, OTTHUMT00000460572
      Conserved Domains (3) summary
      pfam08826
      Location:470530
      Blast Score: 247
      DMPK_coil; DMPK coiled coil domain like
      cd05597
      Location:69406
      Blast Score: 1647
      STKc_DMPK_like; Catalytic domain of Myotonic Dystrophy protein kinase-like Protein Serine/Threonine Kinases
      smart00220
      Location:71339
      Blast Score: 702
      S_TKc; Serine/Threonine protein kinases, catalytic domain

    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_000019.9 Reference GRCh37.p10 Primary Assembly

      Range
      46272975..46285815, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate HuRef

    Genomic

    1. AC_000151.1 Alternate HuRef

      Range
      42701722..42714534, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate CHM1_1.0

    Genomic

    1. NC_018930.1 Alternate CHM1_1.0

      Range
      46462792..46474657, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

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