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Crosstalk has also been shown between GEFs and multiple GTPase signaling pathways. For example, SOS contains a Dbl homology domain in addition to its CDC25 catalytic domain. SOS can act as a GEF to activate Rac1, a RhoGTPase, in addition to its role as a GEF for Ras. SOS is therefore a link between the Ras-Family and Rho-Family GTPase signaling ...
Reaction of GeF 4 with fluoride sources produces GeF 5 − anions with octahedral coordination around Ge atom due to polymerization. [6] The structural characterization of a discrete trigonal bipyramidal GeF 5 − anion was achieved by a "naked" fluoride reagent 1,3-bis(2,6-diisopropylphenyl)imidazolium fluoride.
Rap guanine nucleotide exchange factor (GEF) 4 (RAPGEF4), also known as exchange protein directly activated by cAMP 2 (EPAC2) is a protein that in humans is encoded by the RAPGEF4 gene. [ 5 ] [ 6 ] [ 7 ]
The G β subunit is a member of the β-propeller family of proteins, which typically possess four to eight antiparallel β-sheets arranged in the shape of a propeller. [7] G β contains a seven-bladed β-propeller, each blade arranged around a central axis and composed of four antiparallel β-sheets. [7]
RhoGEF domain describes two distinct structural domains with guanine nucleotide exchange factor (GEF) activity to regulate small GTPases in the Rho family.Rho small GTPases are inactive when bound to GDP but active when bound to GTP; RhoGEF domains in proteins are able to promote GDP release and GTP binding to activate specific Rho family members, including RhoA, Rac1 and Cdc42.
Germanium tetrafluoride, GeF 4, a colorless molecular gas Index of chemical compounds with the same name This set index article lists chemical compounds articles associated with the same name.
This template was developed to handle the reaction ontologies as e.g. developed by the RSC (Royal Society of Chemistry). A representation of the ontology is shown in the picture on the right. A representation of the ontology is shown in the picture on the right.
It is thought that GAPs serve to make GTP on the G protein a better substrate for nucleophilic attack and lower the transition state energy for the hydrolysis reaction. For example, many GAPs of the small G proteins have a conserved finger-like domain, usually an arginine finger, which changes the conformation of the GTP-bound G protein to ...