CSPG4

Chondroitin sulfate proteoglycan 4
Identifiers
Symbols	CSPG4 ; HMW-MAA; MCSP; MCSPG; MEL-CSPG; MSK16; NG2
External IDs	OMIM: 601172 MGI: 2153093 HomoloGene: 20445 GeneCards: CSPG4 Gene
Gene ontology Molecular function • signal transducer activity • protein kinase binding Cellular component • extracellular region • Golgi lumen • integral component of plasma membrane • focal adhesion • cell surface • apical plasma membrane • lamellipodium membrane • lysosomal lumen • extracellular exosome Biological process • activation of MAPK activity • angiogenesis • carbohydrate metabolic process • transmembrane receptor protein tyrosine kinase signaling pathway • cell proliferation • glial cell migration • glycosaminoglycan metabolic process • chondroitin sulfate metabolic process • chondroitin sulfate biosynthetic process • chondroitin sulfate catabolic process • dermatan sulfate biosynthetic process • intracellular signal transduction • small molecule metabolic process • tissue remodeling • positive regulation of peptidyl-tyrosine phosphorylation Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	1464	121021
Ensembl	ENSG00000173546	ENSMUSG00000032911
UniProt	Q6UVK1	Q8VHY0
RefSeq (mRNA)	NM_001897	NM_139001
RefSeq (protein)	NP_001888	NP_620570
Location (UCSC)	Chr 15: 75.67 – 75.71 Mb	Chr 9: 56.87 – 56.9 Mb
PubMed search

Chondroitin sulfate proteoglycan 4, also known as melanoma-associated chondroitin sulfate proteoglycan (MCSP) or neuron-glial antigen 2 (NG2), is a chondroitin sulfate proteoglycan that in humans is encoded by the CSPG4 gene.^[1][2][3]

CSPG4 plays a role in stabilizing cell-substratum interactions during early events of melanoma cell spreading on endothelial basement membranes. It represents an integral membrane chondroitin sulfate proteoglycan expressed by human malignant melanoma cells.^[3]

See also

• NG2-glia

References

1. Pluschke G, Vanek M, Evans A, Dittmar T, Schmid P, Itin P, Filardo EJ, Reisfeld RA (Oct 1996). "Molecular cloning of a human melanoma-associated chondroitin sulfate proteoglycan". Proc Natl Acad Sci U S A 93 (18): 9710–5. doi:10.1073/pnas.93.18.9710. PMC 38494. PMID 8790396.
2. Luo W, Wang X, Kageshita T, Wakasugi S, Karpf AR, Ferrone S (May 2006). "Regulation of high molecular weight-melanoma associated antigen (HMW-MAA) gene expression by promoter DNA methylation in human melanoma cells". Oncogene 25 (20): 2873–84. doi:10.1038/sj.onc.1209319. PMID 16407841.
3. "Entrez Gene: CSPG4 chondroitin sulfate proteoglycan 4".

Further reading

• Kirschfink M, Blase L, Engelmann S, Schwartz-Albiez R (1997). "Secreted chondroitin sulfate proteoglycan of human B cell lines binds to the complement protein C1q and inhibits complex formation of C1.". J. Immunol. 158 (3): 1324–31. PMID 9013976.
• Iida J, Meijne AM, Oegema TR; et al. (1998). "A role of chondroitin sulfate glycosaminoglycan binding site in alpha4beta1 integrin-mediated melanoma cell adhesion.". J. Biol. Chem. 273 (10): 5955–62. doi:10.1074/jbc.273.10.5955. PMID 9488735.
• Eisenmann KM, McCarthy JB, Simpson MA; et al. (2000). "Melanoma chondroitin sulphate proteoglycan regulates cell spreading through Cdc42, Ack-1 and p130cas.". Nat. Cell Biol. 1 (8): 507–13. doi:10.1038/70302. PMID 10587647.
• Barritt DS, Pearn MT, Zisch AH; et al. (2000). "The multi-PDZ domain protein MUPP1 is a cytoplasmic ligand for the membrane-spanning proteoglycan NG2.". J. Cell. Biochem. 79 (2): 213–24. doi:10.1002/1097-4644(20001101)79:2<213::AID-JCB50>3.0.CO;2-G. PMC 3501957. PMID 10967549.
• Iida J, Pei D, Kang T; et al. (2001). "Melanoma chondroitin sulfate proteoglycan regulates matrix metalloproteinase-dependent human melanoma invasion into type I collagen.". J. Biol. Chem. 276 (22): 18786–94. doi:10.1074/jbc.M010053200. PMID 11278606.
• Staub E, Hinzmann B, Rosenthal A (2002). "A novel repeat in the melanoma-associated chondroitin sulfate proteoglycan defines a new protein family.". FEBS Lett. 527 (1-3): 114–8. doi:10.1016/S0014-5793(02)03195-2. PMID 12220645.
• Stegmüller J, Werner H, Nave KA, Trotter J (2003). "The proteoglycan NG2 is complexed with alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors by the PDZ glutamate receptor interaction protein (GRIP) in glial progenitor cells. Implications for glial-neuronal signaling.". J. Biol. Chem. 278 (6): 3590–8. doi:10.1074/jbc.M210010200. PMID 12458226.
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Legg J, Jensen UB, Broad S; et al. (2004). "Role of melanoma chondroitin sulphate proteoglycan in patterning stem cells in human interfollicular epidermis.". Development 130 (24): 6049–63. doi:10.1242/dev.00837. PMID 14573520.
• Ghali L, Wong ST, Tidman N; et al. (2004). "Epidermal and hair follicle progenitor cells express melanoma-associated chondroitin sulfate proteoglycan core protein.". J. Invest. Dermatol. 122 (2): 433–42. doi:10.1046/j.0022-202X.2004.22207.x. PMID 15009727.
• Fukushi J, Makagiansar IT, Stallcup WB (2005). "NG2 proteoglycan promotes endothelial cell motility and angiogenesis via engagement of galectin-3 and alpha3beta1 integrin.". Mol. Biol. Cell 15 (8): 3580–90. doi:10.1091/mbc.E04-03-0236. PMC 491820. PMID 15181153.
• Yang J, Price MA, Neudauer CL; et al. (2004). "Melanoma chondroitin sulfate proteoglycan enhances FAK and ERK activation by distinct mechanisms.". J. Cell Biol. 165 (6): 881–91. doi:10.1083/jcb.200403174. PMC 2172406. PMID 15210734.
• Colland F, Jacq X, Trouplin V; et al. (2004). "Functional proteomics mapping of a human signaling pathway.". Genome Res. 14 (7): 1324–32. doi:10.1101/gr.2334104. PMC 442148. PMID 15231748.
• Suzuki Y, Yamashita R, Shirota M; et al. (2004). "Sequence comparison of human and mouse genes reveals a homologous block structure in the promoter regions.". Genome Res. 14 (9): 1711–8. doi:10.1101/gr.2435604. PMC 515316. PMID 15342556.
• Makagiansar IT, Williams S, Dahlin-Huppe K; et al. (2005). "Phosphorylation of NG2 proteoglycan by protein kinase C-alpha regulates polarized membrane distribution and cell motility.". J. Biol. Chem. 279 (53): 55262–70. doi:10.1074/jbc.M411045200. PMID 15504744.
• Petrini S, Tessa A, Stallcup WB; et al. (2006). "Altered expression of the MCSP/NG2 chondroitin sulfate proteoglycan in collagen VI deficiency.". Mol. Cell. Neurosci. 30 (3): 408–17. doi:10.1016/j.mcn.2005.08.005. PMID 16169245.
• Brekke C, Lundervold A, Enger PØ; et al. (2006). "NG2 expression regulates vascular morphology and function in human brain tumours.". NeuroImage 29 (3): 965–76. doi:10.1016/j.neuroimage.2005.08.026. PMID 16253523.
• Liu T, Qian WJ, Gritsenko MA; et al. (2006). "Human plasma N-glycoproteome analysis by immunoaffinity subtraction, hydrazide chemistry, and mass spectrometry.". J. Proteome Res. 4 (6): 2070–80. doi:10.1021/pr0502065. PMC 1850943. PMID 16335952.