Structural highlights
Disease
COG4_HUMAN Defects in COG4 are the cause of congenital disorder of glycosylation type 2J (CDG2J) [MIM:613489. It is a multisystem disorder caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions.[1] [2]
Function
COG4_HUMAN Required for normal Golgi function. Plays a role in SNARE-pin assembly and Golgi-to-ER retrograde transport via its interaction with SCFD1.[3]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
- ↑ Richardson BC, Smith RD, Ungar D, Nakamura A, Jeffrey PD, Lupashin VV, Hughson FM. Structural basis for a human glycosylation disorder caused by mutation of the COG4 gene. Proc Natl Acad Sci U S A. 2009 Jul 27. PMID:19651599
- ↑ Reynders E, Foulquier F, Leao Teles E, Quelhas D, Morelle W, Rabouille C, Annaert W, Matthijs G. Golgi function and dysfunction in the first COG4-deficient CDG type II patient. Hum Mol Genet. 2009 Sep 1;18(17):3244-56. doi: 10.1093/hmg/ddp262. Epub 2009 Jun , 3. PMID:19494034 doi:10.1093/hmg/ddp262
- ↑ Laufman O, Kedan A, Hong W, Lev S. Direct interaction between the COG complex and the SM protein, Sly1, is required for Golgi SNARE pairing. EMBO J. 2009 Jul 22;28(14):2006-17. Epub 2009 Jun 18. PMID:19536132 doi:emboj2009168