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2c5l
From Proteopedia
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|PDB= 2c5l |SIZE=350|CAPTION= <scene name='initialview01'>2c5l</scene>, resolution 1.90Å | |PDB= 2c5l |SIZE=350|CAPTION= <scene name='initialview01'>2c5l</scene>, resolution 1.90Å | ||
|SITE= <scene name='pdbsite=AC1:Gol+Binding+Site+For+Chain+C'>AC1</scene> | |SITE= <scene name='pdbsite=AC1:Gol+Binding+Site+For+Chain+C'>AC1</scene> | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=GTP:GUANOSINE-5'-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Small_monomeric_GTPase Small monomeric GTPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.5.2 3.6.5.2] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Small_monomeric_GTPase Small monomeric GTPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.5.2 3.6.5.2] </span> |
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2c5l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c5l OCA], [http://www.ebi.ac.uk/pdbsum/2c5l PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2c5l RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
Ras proteins signal to a number of distinct pathways by interacting with diverse effectors. Studies of ras/effector interactions have focused on three classes, Raf kinases, ral guanylnucleotide-exchange factors, and phosphatidylinositol-3-kinases. Here we describe ras interactions with another effector, the recently identified phospholipase C epsilon (PLCepsilon). We solved structures of PLCepsilon RA domains (RA1 and RA2) by NMR and the structure of the RA2/ras complex by X-ray crystallography. Although the similarity between ubiquitin-like folds of RA1 and RA2 proves that they are homologs, only RA2 can bind ras. Some of the features of the RA2/ras interface are unique to PLCepsilon, while the ability to make contacts with both switch I and II regions of ras is shared only with phosphatidylinositol-3-kinase. Studies of PLCepsilon regulation suggest that, in a cellular context, the RA2 domain, in a mode specific to PLCepsilon, has a role in membrane targeting with further regulatory impact on PLC activity. | Ras proteins signal to a number of distinct pathways by interacting with diverse effectors. Studies of ras/effector interactions have focused on three classes, Raf kinases, ral guanylnucleotide-exchange factors, and phosphatidylinositol-3-kinases. Here we describe ras interactions with another effector, the recently identified phospholipase C epsilon (PLCepsilon). We solved structures of PLCepsilon RA domains (RA1 and RA2) by NMR and the structure of the RA2/ras complex by X-ray crystallography. Although the similarity between ubiquitin-like folds of RA1 and RA2 proves that they are homologs, only RA2 can bind ras. Some of the features of the RA2/ras interface are unique to PLCepsilon, while the ability to make contacts with both switch I and II regions of ras is shared only with phosphatidylinositol-3-kinase. Studies of PLCepsilon regulation suggest that, in a cellular context, the RA2 domain, in a mode specific to PLCepsilon, has a role in membrane targeting with further regulatory impact on PLC activity. | ||
| - | |||
| - | ==Disease== | ||
| - | Known diseases associated with this structure: Bladder cancer, somatic OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=190020 190020]], Costello syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=190020 190020]], Thyroid carcinoma, follicular, somatic OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=190020 190020]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Pearl, L H.]] | [[Category: Pearl, L H.]] | ||
[[Category: Roe, S M.]] | [[Category: Roe, S M.]] | ||
| - | [[Category: GOL]] | ||
| - | [[Category: GTP]] | ||
| - | [[Category: MG]] | ||
[[Category: disease mutation]] | [[Category: disease mutation]] | ||
[[Category: gtp-binding]] | [[Category: gtp-binding]] | ||
| Line 45: | Line 42: | ||
[[Category: ubiquitin superfold]] | [[Category: ubiquitin superfold]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:16:43 2008'' |
Revision as of 23:16, 30 March 2008
| |||||||
| , resolution 1.90Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , , | ||||||
| Activity: | Small monomeric GTPase, with EC number 3.6.5.2 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF PLC EPSILON RAS ASSOCIATION DOMAIN WITH HRAS
Overview
Ras proteins signal to a number of distinct pathways by interacting with diverse effectors. Studies of ras/effector interactions have focused on three classes, Raf kinases, ral guanylnucleotide-exchange factors, and phosphatidylinositol-3-kinases. Here we describe ras interactions with another effector, the recently identified phospholipase C epsilon (PLCepsilon). We solved structures of PLCepsilon RA domains (RA1 and RA2) by NMR and the structure of the RA2/ras complex by X-ray crystallography. Although the similarity between ubiquitin-like folds of RA1 and RA2 proves that they are homologs, only RA2 can bind ras. Some of the features of the RA2/ras interface are unique to PLCepsilon, while the ability to make contacts with both switch I and II regions of ras is shared only with phosphatidylinositol-3-kinase. Studies of PLCepsilon regulation suggest that, in a cellular context, the RA2 domain, in a mode specific to PLCepsilon, has a role in membrane targeting with further regulatory impact on PLC activity.
About this Structure
2C5L is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural and mechanistic insights into ras association domains of phospholipase C epsilon., Bunney TD, Harris R, Gandarillas NL, Josephs MB, Roe SM, Sorli SC, Paterson HF, Rodrigues-Lima F, Esposito D, Ponting CP, Gierschik P, Pearl LH, Driscoll PC, Katan M, Mol Cell. 2006 Feb 17;21(4):495-507. PMID:16483931
Page seeded by OCA on Mon Mar 31 02:16:43 2008
