DMP1

Last updated
DMP1
Identifiers
Aliases DMP1 , ARHP, ARHR, DMP-1, dentin matrix acidic phosphoprotein 1
External IDs OMIM: 600980; MGI: 94910; HomoloGene: 68396; GeneCards: DMP1; OMA:DMP1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001079911
NM_004407

NM_016779
NM_001359013

RefSeq (protein)

NP_001073380
NP_004398

NP_058059
NP_001345942

Location (UCSC) Chr 4: 87.65 – 87.66 Mb Chr 5: 104.35 – 104.36 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Dentin matrix acidic phosphoprotein 1 is a protein that in humans is encoded by the DMP1 gene. [5] [6] [7]

Dentin matrix acidic phosphoprotein is an extracellular matrix protein and a member of the small integrin-binding ligand N-linked glycoprotein (SIBLING) family (other members being DSPP, IBSP, MEPE, and SPP1). This protein, which is critical for proper mineralization of bone and dentin, is present in diverse cells of bone and tooth tissues. The protein contains a large number of acidic domains, multiple phosphorylation sites, a functional Arg-Gly-Asp cell attachment sequence, and a DNA binding domain. In undifferentiated osteoblasts it is primarily a nuclear protein that regulates the expression of osteoblast-specific genes. During osteoblast maturation the protein becomes phosphorylated and is exported to the extracellular matrix, where it orchestrates mineralized matrix formation. Mutations in the gene are known to cause autosomal recessive hypophosphatemia, a disease that manifests as rickets and osteomalacia. The gene structure is conserved in mammals. Two transcript variants encoding different isoforms have been described for this gene. [7]

Related Research Articles

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Dentin sialophosphoprotein is a precursor protein for other proteins found in the teeth. It is produced by cells (odontoblasts) inside the teeth, and in smaller quantities by bone tissues. It is required for normal hardening (mineralisation) of teeth. During teeth development, it is broken down into three proteins such as dentin sialoprotein (DSP), dentin glycoprotein (DGP), and dentin phosphoprotein (DPP). These proteins become the major non-collagenous components of teeth. Their distribution in the collagen matrix of the forming dentin suggests these proteins play an important role in the regulation of mineral deposition. Additional evidence for this correlation is phenotypically manifested in patients with mutant forms of dentin sialophosphoprotein. Such patients suffer dental anomalies including type III dentinogenesis imperfecta.

Dentin sialoprotein is a protein found in teeth. It is one of the two proteins produced by the segmentation of dentin sialophosphoprotein. Dentin sialoprotein can be found in the dentin immediately subjacent to cellular cementum, but not subjacent to acellular fibrous cementum.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000152592 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000029307 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Aplin HM, Hirst KL, Crosby AH, Dixon MJ (Mar 1996). "Mapping of the human dentin matrix acidic phosphoprotein gene (DMP1) to the dentinogenesis imperfecta type II critical region at chromosome 4q21". Genomics. 30 (2): 347–9. doi:10.1006/geno.1995.9867. PMID   8586437.
  6. Hirst KL, Simmons D, Feng J, Aplin H, Dixon MJ, MacDougall M (Jul 1997). "Elucidation of the sequence and the genomic organization of the human dentin matrix acidic phosphoprotein 1 (DMP1) gene: exclusion of the locus from a causative role in the pathogenesis of dentinogenesis imperfecta type II". Genomics. 42 (1): 38–45. doi:10.1006/geno.1997.4700. PMID   9177774.
  7. 1 2 "Entrez Gene: DMP1 dentin matrix acidic phosphoprotein".

Cell Cycle-Dependent Nuclear Localization of DMP1

J.O. MANCERA1, T. JHALA2, S. WANG2, C. QIN2, R. D'SOUZA2, and Y. LU2, 1School of Dentistry, Meharry Medical College, Nashville, TN, 2Department of Biomedical Sciences, Texas A&M Health Science Center, Baylor College of Dentistry, Dallas, TX

Further reading