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// Workers AI · dad joke modeWhat did Caveolae-associated protein 2 say? "I'm caved in to stress.

From Wikipedia, the free encyclopedia
(Redirected from SDPR)
CAVIN2
Identifiers
AliasesCAVIN2, PS-p68, SDR, cavin-2, SDPR, serum deprivation response, caveolae associated protein 2
External IDsOMIM: 606728; MGI: 99513; GeneCards: CAVIN2
Orthologs
DatabasesNCBI: entry; OMA: entry
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_004657

NM_138741

RefSeq (protein)

NP_004648

NP_620080

Location (UCSC)Chr 2: 191.83 – 191.85 MbChr 1: 51.33 – 51.34 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Caveolae-associated protein 2 or Cavin-2 is a protein that in humans is encoded by the CAVIN2 gene (previously SDPR).[5][6][7] Cavin-2 is highly expressed in a variety of human endothelial cells.[8]

This gene has a calcium-independent phospholipid-binding protein whose expression increases in serum-starved cells. This protein has also been shown to be a substrate for protein kinase C (PKC) phosphorylation.[7]

Function

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Cavin-2 is required for blood vessel formation (angiogenesis) in humans and zebrafish and required also for the endothelial cell proliferation, migration and invasion in humans.[8] Cavin-2 plays an important role in endothelial cell maintenance by regulating eNOS activity.[8] Cavin-2 controls the generation of nitric oxide (NO) in human endothelial cells by controlling the activity and stability of the protein endothelial nitric-oxide synthase (eNOS).[8]

Secretion

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Cavin-2 is highly secreted from human endothelial cells (HUVEC), they are secreted through endothelial microparticles (EMPs) but not exosomes and is required for EMP biogenesis.[8]

Clinical significance

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Cavin-2/SDPR is shown to act as a metastasis suppressor by xenograft studies utilizing breast cancer cell lines.[9] Cavin-2 may elicit its metastasis suppressor function by directly interacting with ERK and limiting its pro-survival role.[9] Moreover, it is suggested that cavin-2 is silenced during breast cancer progression by promoter DNA methylation.[9] Metastasis suppressor role of cavin-2 may go beyond breast cancer since tumor samples from bladder, colorectal, lung, pancreatic, and ovarian cancers as well as sarcomas also exhibited loss of cavin-2 expression.[9]

References

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  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000168497 – Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000045954 – 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. ↑ Gustincich S, Vatta P, Goruppi S, Wolf M, Saccone S, Della Valle G, et al. (April 1999). "The human serum deprivation response gene (SDPR) maps to 2q32-q33 and codes for a phosphatidylserine-binding protein". Genomics. 57 (1): 120–9. doi:10.1006/geno.1998.5733. PMID 10191091.
  6. ↑ Gustincich S, Schneider C (September 1993). "Serum deprivation response gene is induced by serum starvation but not by contact inhibition". Cell Growth & Differentiation. 4 (9): 753–60. PMID 8241023.
  7. 1 2 "Entrez Gene: SDPR serum deprivation response (phosphatidylserine binding protein)".
  8. 1 2 3 4 5 Boopathy GT, Kulkarni M, Ho SY, Boey A, Chua EW, Barathi VA, et al. (October 2017). "Cavin-2 regulates the activity and stability of endothelial nitric-oxide synthase (eNOS) in angiogenesis". The Journal of Biological Chemistry. 292 (43): 17760–17776. doi:10.1074/jbc.M117.794743. PMC 5663877. PMID 28912276.
  9. 1 2 3 4 Ozturk S, Papageorgis P, Wong CK, Lambert AW, Abdolmaleky HM, Thiagalingam A, et al. (January 2016). "SDPR functions as a metastasis suppressor in breast cancer by promoting apoptosis". Proceedings of the National Academy of Sciences of the United States of America. 113 (3): 638–43. Bibcode:2016PNAS..113..638O. doi:10.1073/pnas.1514663113. PMC 4725521. PMID 26739564.

Further reading

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