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					Protein-coding gene in the species Homo sapiens
Golgi reassembly-stacking protein 1  (GORASP1 ) also known as Golgi reassembly-stacking protein of 65 kDa  (GRASP65 )  is a protein  that in humans is encoded by the GORASP1  gene .[ 5]  
 
Microinjection  of antibodies  to GORASP1 prevents normal Golgi stack formation.[ 6]  
The Golgi complex  plays a key role in the sorting  and modification of proteins exported from the endoplasmic reticulum . The GORASP1 protein is a peripheral membrane protein  anchored to the lipid bilayer  through myristoylation  of a glycine  residue near the protein's amino terminus .[ 7]   It is involved in establishing the stacked structure of the Golgi apparatus and linking the stacks into larger ribbons in vertebrate cells.[ 7]   It is a caspase-3  substrate, and cleavage of this encoded protein contributes to Golgi fragmentation in apoptosis.[ 8] [ 9]   GORASP1 can form a complex with the Golgi matrix protein GM130 , and this complex binds to the vesicle docking protein p115 .[ 7] [ a]   Several alternatively spliced transcript variants of this gene have been identified, but their full-length natures have not been determined.[ 5]  
GORASP1 contains two PDZ domains  in the amino-terminal GRASP domain (amino acid residues  2–210), that comprises approximately half of the protein. The GRASP region interacts with the Golgi matrix protein GM130 as well as an  intrinsically disordered region  in the C-terminus .[ 7] [ 10]  
		
			
			GRASP65 superhelix, topview
[ 7]  
		 
		
			
			
		 
		
			
			
		 
  
		
			
			GRASP65 superhelix, side view
[ 7]  
		 
		
			
			
		 
  
GORASP1 has been shown to interact  with TGF alpha ,[ 11]   TMED2 [ 11]   and GOLGA2 .[ 11] [ 12] [ 13]  
^   This is shown in the external link entitled "Molecular models of GRASP65/GM130/P115-mediated cis-cisternae membrane stacking and vesicle tethering." 
 
  
^ a   b   c   GRCh38: Ensembl release 89: ENSG00000114745  – Ensembl , May 2017 
 
^ a   b   c   GRCm38: Ensembl release 89: ENSMUSG00000032513  – Ensembl , May 2017 
 
^   "Human PubMed Reference:" . National Center for Biotechnology Information, U.S. National Library of Medicine . 
 
^   "Mouse PubMed Reference:" . National Center for Biotechnology Information, U.S. National Library of Medicine . 
 
^ a   b   "Entrez Gene: GORASP1 golgi reassembly stacking protein 1, 65kDa" . 
 
^   Wang Y, Wei JH, Bisel B, Tang D, Seemann J (February 2008). "Golgi cisternal unstacking stimulates COPI vesicle budding and protein transport" . PLOS ONE . 3  (2) e1647. Bibcode :2008PLoSO...3.1647W . doi :10.1371/journal.pone.0001647  . PMC  2249924  . PMID  18297130 .  
 
^ a   b   c   d   e   f   Hu F, Shi X, Li B, Huang X, Morelli X, Shi N (2015). "Structural basis for the interaction between the Golgi reassembly-stacking protein GRASP65 and the Golgi matrix protein GM130" . The Journal of Biological Chemistry . 290  (44): 26373– 82. doi :10.1074/jbc.M115.657940  . PMC  4646294  . PMID  26363069 .  
 
^   Lane JD, Lucocq J, Pryde J, Barr FA, Woodman PG, Allan VJ, Lowe M (2002). "Caspase-mediated cleavage of the stacking protein GRASP65 is required for Golgi fragmentation during apoptosis" . The Journal of Cell Biology . 156  (3): 495– 509. doi :10.1083/jcb.200110007 . PMC  2173349  . PMID  11815631 .  
 
^   Cheng JP, Betin VM, Weir H, Shelmani GM, Moss DK, Lane JD (2010). "Caspase cleavage of the Golgi stacking factor GRASP65 is required for Fas/CD95-mediated apoptosis" . Cell Death & Disease . 1  (10): e82. doi :10.1038/cddis.2010.59 . PMC  3035901  . PMID  21368855 .  
 
^   Rabouille C, Linstedt AD (2016). "GRASP: A Multitasking Tether" . Frontiers in Cell and Developmental Biology . 4 : 1. doi :10.3389/fcell.2016.00001  . PMC  4726779  . PMID  26858948 .  
 
^ a   b   c   Barr FA, Preisinger C, Kopajtich R, Körner R (December 2001). "Golgi matrix proteins interact with p24 cargo receptors and aid their efficient retention in the Golgi apparatus" . The Journal of Cell Biology . 155  (6): 885– 91. doi :10.1083/jcb.200108102 . PMC  2150891  . PMID  11739402 .  
 
^   Short B, Preisinger C, Körner R, Kopajtich R, Byron O, Barr FA (December 2001). "A GRASP55-rab2 effector complex linking Golgi structure to membrane traffic" . The Journal of Cell Biology . 155  (6): 877– 83. doi :10.1083/jcb.200108079 . PMC  2150909  . PMID  11739401 .  
 
^   Shorter J, Watson R, Giannakou ME, Clarke M, Warren G, Barr FA (September 1999). "GRASP55, a second mammalian GRASP protein involved in the stacking of Golgi cisternae in a cell-free system" . The EMBO Journal . 18  (18): 4949– 60. doi :10.1093/emboj/18.18.4949 . PMC  1171566  . PMID  10487747 .  
 
  
Barr FA, Puype M, Vandekerckhove J, Warren G (October 1997). "GRASP65, a protein involved in the stacking of Golgi cisternae" . Cell . 91  (2): 253– 62. doi :10.1016/S0092-8674(00)80407-9  . PMID  9346242 . S2CID  11655667 .  
Barr FA, Nakamura N, Warren G (June 1998). "Mapping the interaction between GRASP65 and GM130, components of a protein complex involved in the stacking of Golgi cisternae" . The EMBO Journal . 17  (12): 3258– 68. doi :10.1093/emboj/17.12.3258 . PMC  1170664  . PMID  9628863 .  
Lin CY, Madsen ML, Yarm FR, Jang YJ, Liu X, Erikson RL (November 2000). "Peripheral Golgi protein GRASP65 is a target of mitotic polo-like kinase (Plk) and Cdc2" . Proceedings of the National Academy of Sciences of the United States of America . 97  (23): 12589– 94. Bibcode :2000PNAS...9712589L . doi :10.1073/pnas.220423497  . PMC  18808  . PMID  11050165 .  
Moyer BD, Allan BB, Balch WE (April 2001). "Rab1 interaction with a GM130 effector complex regulates COPII vesicle cis--Golgi tethering" . Traffic . 2  (4): 268– 76. doi :10.1034/j.1600-0854.2001.1o007.x  . PMID  11285137 . S2CID  43069518 .  
Sütterlin C, Lin CY, Feng Y, Ferris DK, Erikson RL, Malhotra V (July 2001). "Polo-like kinase is required for the fragmentation of pericentriolar Golgi stacks during mitosis" . Proceedings of the National Academy of Sciences of the United States of America . 98  (16): 9128– 32. Bibcode :2001PNAS...98.9128S . doi :10.1073/pnas.161283998  . PMC  55384  . PMID  11447294 .  
Ward TH, Polishchuk RS, Caplan S, Hirschberg K, Lippincott-Schwartz J (November 2001). "Maintenance of Golgi structure and function depends on the integrity of ER export" . The Journal of Cell Biology . 155  (4): 557– 70. doi :10.1083/jcb.200107045 . PMC  2198855  . PMID  11706049 .  
Lane JD, Lucocq J, Pryde J, Barr FA, Woodman PG, Allan VJ, Lowe M (February 2002). "Caspase-mediated cleavage of the stacking protein GRASP65 is required for Golgi fragmentation during apoptosis" . The Journal of Cell Biology . 156  (3): 495– 509. doi :10.1083/jcb.200110007 . PMC  2173349  . PMID  11815631 .  
Jesch SA (July 2002). "Inheriting a structural scaffold for Golgi biosynthesis". BioEssays . 24  (7): 584– 7. doi :10.1002/bies.10122 . PMID  12111718 .  
Protopopov A, Kashuba V, Zabarovska VI, Muravenko OV, Lerman MI, Klein G, Zabarovsky ER (January 2003). "An integrated physical and gene map of the 3.5-Mb chromosome 3p21.3 (AP20) region implicated in major human epithelial malignancies". Cancer Research . 63  (2): 404– 12. PMID  12543795 .  
Wang Y, Seemann J, Pypaert M, Shorter J, Warren G (July 2003). "A direct role for GRASP65 as a mitotically regulated Golgi stacking factor" . The EMBO Journal . 22  (13): 3279– 90. doi :10.1093/emboj/cdg317 . PMC  165642  . PMID  12839990 .  
Colland F, Jacq X, Trouplin V, Mougin C, Groizeleau C, Hamburger A, Meil A, Wojcik J, Legrain P, Gauthier JM (July 2004). "Functional proteomics mapping of a human signaling pathway" . Genome Research . 14  (7): 1324– 32. doi :10.1101/gr.2334104 . PMC  442148  . PMID  15231748 .  
Wang Y, Satoh A, Warren G (February 2005). "Mapping the functional domains of the Golgi stacking factor GRASP65" . The Journal of Biological Chemistry . 280  (6): 4921– 8. doi :10.1074/jbc.M412407200  . PMC  4443495  . PMID  15576368 .  
Yoshimura S, Yoshioka K, Barr FA, Lowe M, Nakayama K, Ohkuma S, Nakamura N (June 2005). "Convergence of cell cycle regulation and growth factor signals on GRASP65" . The Journal of Biological Chemistry . 280  (24): 23048– 56. doi :10.1074/jbc.M502442200  . PMID  15834132 .  
Sütterlin C, Polishchuk R, Pecot M, Malhotra V (July 2005). "The Golgi-associated protein GRASP65 regulates spindle dynamics and is essential for cell division" . Molecular Biology of the Cell . 16  (7): 3211– 22. doi :10.1091/mbc.E04-12-1065 . PMC  1165405  . PMID  15888544 .