Osteopetrosis-Associated Transmembrane Protein 1

Alternative Names

  • OSTM1
  • Grey-Lethal, Mouse, Homolog of
  • GL
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OMIM Number

607649

NCBI Gene ID

28962

Uniprot ID

Q86WC4

Length

124,446 bases

No. of Exons

7

No. of isoforms

1

Protein Name

Osteopetrosis-associated transmembrane protein 1

Molecular Mass

37257 Da

Amino Acid Count

334

Genomic Location

chr6:108,041,409-108,165,854

Gene Map Locus
6q21

Description

The osteopetrosis associated transmembrane protein 1 (OSTM1) gene codes for the OSTM1 protein. OSTM1 protein is involved in osteoclast maturation and functional activity, more precisely, in cytoskeletal reorganization and development of the ruffled border of bone-resorbing osteoclasts. However, the exact function of the OSTM1 protein in osteoclastic bone resorption is still unclear. It has been identified that this protein acts as a G-alpha interacting protein and it has an E3 ubiquitin ligase activity which could regulate the protein activity through degradation via the ubiquitin-dependent proteasome pathway.

OSTM1 gene is normally expressed in normal fetal and adult osteoclasts and highly expressed in brain tissue. The mutations in this gene lead to the development of the most severe autosomal recessive form of osteopetrosis with central nervous system involvement.

Epidemiology in the Arab World

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Variant NameCountryGenomic LocationClinvar Clinical SignificanceCTGA Clinical Significance Condition(s)HGVS ExpressionsdbSNPClinvar
NM_014028.4:c.36T>ALebanonchr6:108074616PathogenicPathogenicOsteopetrosis, Autosomal Recessive 5NG_007262.1:g.5122T>A; NM_014028.4:c.36T>A; NP_054747.2:p.Cys12Ter1194609732944
NM_014028.4:c.415_416delKuwait; Saudi ArabiaNC_000006.12:g.108064286CT[2]PathogenicPathogenicOsteopetrosis, Autosomal Recessive 5NG_007262.1:g.15447AG[2]; NM_014028.4:c.415_416del; NP_054747.2:p.Gln140Glufs*11794727287195291
NM_014028.4:c.949+5G>ALebanonchr6:108049248PathogenicPathogenicOsteopetrosis, Autosomal Recessive 5NG_007262.1:g.30490G>A; NM_014028.4:c.949+5G>A15623700772942
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