Biology:Laminin, alpha 3
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Laminin subunit alpha-3 is a protein that in humans is encoded by the LAMA3 gene.[1][2]
Function
Laminins are basement membrane components thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components. The protein encoded by this gene is the alpha-3 chain of laminin 5, which is a complex glycoprotein composed of three subunits (alpha, beta, and gamma). Alternatively spliced transcript variants encoding different isoforms have been identified.
Laminin 5 is thought to be involved in cell adhesion, signal transduction and differentiation of keratinocytes.[2]
Clinical significance
Mutations in this gene have been identified as the cause of Herlitz type junctional epidermolysis bullosa. [2]
It may be associated with Laryngoonychocutaneous syndrome.[3]
Interactions
Laminin, alpha 3 has been shown to interact with SDC2.[4]
References
- ↑ "Cloning of the LamA3 gene encoding the alpha 3 chain of the adhesive ligand epiligrin. Expression in wound repair". J Biol Chem 269 (36): 22779–87. Oct 1994. doi:10.1016/S0021-9258(17)31713-1. PMID 8077230.
- ↑ 2.0 2.1 2.2 "Entrez Gene: LAMA3 laminin, alpha 3". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=3909.
- ↑ "An unusual N-terminal deletion of the laminin alpha3a isoform leads to the chronic granulation tissue disorder laryngo-onycho-cutaneous syndrome". Hum. Mol. Genet. 12 (18): 2395–409. September 2003. doi:10.1093/hmg/ddg234. PMID 12915477.
- ↑ "A unique sequence of the laminin alpha 3 G domain binds to heparin and promotes cell adhesion through syndecan-2 and -4". J. Biol. Chem. 276 (31): 28779–88. Aug 2001. doi:10.1074/jbc.M101420200. PMID 11373281.
Further reading
- "Macromolecular organization of basement membranes". Curr. Opin. Cell Biol. 8 (5): 618–24. 1997. doi:10.1016/S0955-0674(96)80102-5. PMID 8939648.
- "A homozygous nonsense mutation in the alpha 3 chain gene of laminin 5 (LAMA3) in lethal (Herlitz) junctional epidermolysis bullosa". Hum. Mol. Genet. 4 (5): 959–62. 1995. doi:10.1093/hmg/4.5.959. PMID 7633458.
- "Structural requirement for cell adhesion to kalinin (laminin-5)". J. Biol. Chem. 270 (23): 13766–70. 1995. doi:10.1074/jbc.270.23.13766. PMID 7775432.
- "A new nomenclature for the laminins". Matrix Biol. 14 (3): 209–11. 1994. doi:10.1016/0945-053X(94)90184-8. PMID 7921537.
- "Cloning of the laminin alpha 3 chain gene (LAMA3) and identification of a homozygous deletion in a patient with Herlitz junctional epidermolysis bullosa". Genomics 30 (2): 273–80. 1996. doi:10.1006/geno.1995.9877. PMID 8586427.
- "A recurrent homozygous nonsense mutation within the LAMA3 gene as a cause of Herlitz junctional epidermolysis bullosa in patients of Pakistani ancestry: evidence for a founder effect". J. Invest. Dermatol. 106 (4): 781–4. 1996. doi:10.1111/1523-1747.ep12346349. PMID 8618022.
- "Differential expression of laminin-5/ladsin subunits in human tissues and cancer cell lines and their induction by tumor promoter and growth factors". J. Biochem. 120 (6): 1196–202. 1997. doi:10.1093/oxfordjournals.jbchem.a021541. PMID 9010770.
- "The Laminin α Chains: Expression, Developmental Transitions, and Chromosomal Locations of α1-5, Identification of Heterotrimeric Laminins 8–11, and Cloning of a Novel α3 Isoform". J. Cell Biol. 137 (3): 685–701. 1997. doi:10.1083/jcb.137.3.685. PMID 9151674.
- "The human alpha3b is a 'full-sized' laminin chain variant with a more widespread tissue expression than the truncated alpha3a". FEBS Lett. 417 (1): 65–70. 1998. doi:10.1016/S0014-5793(97)01251-9. PMID 9395076.
- "HIV-protein-mediated alterations in T cell interactions with the extracellular matrix proteins and endothelium". Arch. Immunol. Ther. Exp. (Warsz.) 45 (2–3): 255–9. 1998. PMID 9597096.
- "Molecular analysis of the human laminin alpha3a chain gene (LAMA3a): a strategy for mutation identification and DNA-based prenatal diagnosis in Herlitz junctional epidermolysis bullosa". Lab. Invest. 78 (9): 1067–76. 1998. PMID 9759651.
- "A Cell Signal Pathway Involving Laminin-5, α3β1 Integrin, and Mitogen-activated Protein Kinase Can Regulate Epithelial Cell Proliferation". Mol. Biol. Cell 10 (2): 259–70. 1999. doi:10.1091/mbc.10.2.259. PMID 9950675.
- "Structural requirement of carboxyl-terminal globular domains of laminin alpha 3 chain for promotion of rapid cell adhesion and migration by laminin-5". J. Biol. Chem. 275 (29): 22495–502. 2000. doi:10.1074/jbc.M001326200. PMID 10801807.
- "Bone morphogenetic protein 1 is an extracellular processing enzyme of the laminin 5 gamma 2 chain". J. Biol. Chem. 275 (30): 22728–35. 2000. doi:10.1074/jbc.M002345200. PMID 10806203.
- "Spatial regulation and activity modulation of plasmin by high affinity binding to the G domain of the alpha 3 subunit of laminin-5". J. Biol. Chem. 275 (45): 34887–93. 2001. doi:10.1074/jbc.M006652200. PMID 10956663.
- "Purification and characterization of human laminin-8. Laminin-8 stimulates cell adhesion and migration through alpha3beta1 and alpha6beta1 integrins". J. Biol. Chem. 276 (20): 17550–8. 2001. doi:10.1074/jbc.M010155200. PMID 11278628.
- "Amplification of extracellular matrix and oncogenes in tat-transfected human salivary gland cell lines with expression of laminin, fibronectin, collagens I, III, IV, c-myc and p53". Arch. Oral Biol. 46 (6): 545–55. 2001. doi:10.1016/S0003-9969(01)00014-0. PMID 11311202.
- "A unique sequence of the laminin alpha 3 G domain binds to heparin and promotes cell adhesion through syndecan-2 and -4". J. Biol. Chem. 276 (31): 28779–88. 2001. doi:10.1074/jbc.M101420200. PMID 11373281.
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