MFGE8

Last updated
MFGE8
MFGE8.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases MFGE8 , milk fat globule-EGF factor 8 protein, BA46, EDIL1, HMFG, HsT19888, MFG-E8, MFGM, OAcGD3S, SED1, SPAG10, hP47, milk fat globule EGF and factor V/VIII domain containing
External IDs OMIM: 602281 MGI: 102768 HomoloGene: 4334 GeneCards: MFGE8
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001114614
NM_001310319
NM_001310320
NM_001310321
NM_005928

Contents

NM_001045489
NM_008594

RefSeq (protein)

NP_001108086
NP_001297248
NP_001297249
NP_001297250
NP_005919

NP_001038954
NP_032620

Location (UCSC) Chr 15: 88.9 – 88.91 Mb Chr 7: 78.78 – 78.8 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Milk fat globule-EGF factor 8 protein (Mfge8), also known as lactadherin, is a protein that in humans is encoded by the MFGE8 gene. [5] [6]

Species distribution

Mfge8 is a secreted protein found in vertebrates, including mammals as well as birds.

Function

MFGE8 may function as a cell adhesion protein to connect smooth muscle to elastic fibers in arteries. [7] An amyloid fragment of MFGE8 known as medin accumulates in the aorta with aging. [8] MFGE8 in the vasculature of adults can induce recovery from ischemia by facilitating angiogenesis. [9] It has been suggested that antagonizing MFGE8-induced angiogenesis could be a way of fighting cancer. [10]

MFGE8 contains a phosphatidylserine (PS) binding domain, as well as an arginine-glycine-aspartic acid motif, which enables the binding to integrins. MFGE8 binds PS, which is exposed on the surface of apoptotic cells. [11] Opsonization of the apoptotic cells and binding to integrins on the surface of phagocytic cells, mediates the engulfment of the dead cell.

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<span class="mw-page-title-main">Milk fat globule membrane</span>

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References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000140545 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000030605 - 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. "Entrez Gene: MFGE8 milk fat globule-EGF factor 8 protein".
  6. Collins C, Nehlin JO, Stubbs JD, Kowbel D, Kuo WL, Parry G (January 1997). "Mapping of a newly discovered human gene homologous to the apoptosis associated-murine mammary protein, MFG-E8, to chromosome 15q25". Genomics. 39 (1): 117–8. doi:10.1006/geno.1996.4425. PMID   9027496.
  7. Larsson A, Peng S, Persson H, Rosenbloom J, Abrams WR, Wassberg E, Thelin S, Sletten K, Gerwins P, Westermark P (June 2006). "Lactadherin binds to elastin--a starting point for medin amyloid formation?". Amyloid. 13 (2): 78–85. doi:10.1080/13506120600722530. PMID   16911961. S2CID   22755686.
  8. Peng S, Glennert J, Westermark P (June 2005). "Medin-amyloid: a recently characterized age-associated arterial amyloid form affects mainly arteries in the upper part of the body". Amyloid. 12 (2): 96–102. doi:10.1080/13506120500107006. PMID   16011985. S2CID   23351552.
  9. Silvestre JS, Théry C, Hamard G, Boddaert J, Aguilar B, Delcayre A, Houbron C, Tamarat R, Blanc-Brude O, Heeneman S, Clergue M, Duriez M, Merval R, Lévy B, Tedgui A, Amigorena S, Mallat Z (May 2005). "Lactadherin promotes VEGF-dependent neovascularization". Nat. Med. 11 (5): 499–506. doi:10.1038/nm1233. PMID   15834428. S2CID   9154352.
  10. Raymond A, Ensslin MA, Shur BD (April 2009). "SED1/MFG-E8: a bi-motif protein that orchestrates diverse cellular interactions". J. Cell. Biochem. 106 (6): 957–66. doi:10.1002/jcb.22076. PMC   2742659 . PMID   19204935.
  11. Aguzzi A, Kranich J, Krautler NJ (2014). "Follicular dendritic cells: origin, phenotype, and function in health and disease". Trends in Immunology . 35 (3): 105–113. doi:10.1016/j.it.2013.11.001. PMID   24315719.

Further reading