Wrch1

RhoU (or Wrch1 or Chp2) is a small (~21 kDa) signaling G protein (more specifically a GTPase), and is a member of the Rho family of GTPases. Wrch1 was identified in 2001 as encoded by a non-canonical Wnt induced gene.^[1] RhoU/Wrch delineates with RhoV/Chp a Rho subclass related to Rac and Cdc42, which emerged in early multicellular organisms during evolution.^[2]

References

^ Tao W, Pennica D, Xu L, Kalejta RF, Levine AJ (2001). "Wrch-1, a novel member of the Rho gene family that is regulated by Wnt-1". Genes Dev. 15 (14): 1796–807. doi:10.1101/gad.894301. ISSN 0890-9369. PMC 312736. PMID 11459829.
^ Boureux A, Vignal E, Faure S, Fort P (2007). "Evolution of the Rho family of ras-like GTPases in eukaryotes". Mol Biol Evol. 24 (1): 203–16. doi:10.1093/molbev/msl145. ISSN 0021-9193. PMC 2665304. PMID 17035353.

Hydrolases: acid anhydride hydrolases (EC 3.6)

3.6.1

3.6.2

3.6.3-4: ATPase

3.6.3

Cu++ (3.6.3.4)	Menkes/ATP7A Wilson/ATP7B
Ca+ (3.6.3.8)	SERCA ATP2A1 ATP2A2 ATP2A3 Plasma membrane ATP2B1 ATP2B2 ATP2B3 ATP2B4 SPCA ATP2C1 ATP2C2
Na+/K+ (3.6.3.9)	ATP1A1 ATP1A2 ATP1A3 ATP1A4 ATP1B1 ATP1B2 ATP1B3 ATP1B4
H+/K+ (3.6.3.10)	ATP4A
Other P-type ATPase	ATP8B1 ATP10A ATP11B ATP12A ATP13A2 ATP13A3

3.6.4

3.6.5: GTPase

3.6.5.1: Heterotrimeric G protein	G_αs G_olf G_αi GNAI1 GNAI2 GNAI3 Transducin GNAT1 GNAT2 Gustducin GNAT3 G_αq/11 GNAQ GNA11 G_α12/13 GNA12 GNA13
3.6.5.2: Small GTPase > Ras superfamily	Rho family of GTPases: Cdc42 CDC42 TC10 TCL RhoUV RhoU RhoV Rac Rac1 2 3 RhoG RhoBTB 1 2 RhoH Rho A B C Rnd 1 2 3 RhoDF RhoF RhoD other: Ras HRAS KRAS NRAS Rab RAB23 RAB27 Arf ARF6 SAR1B ARL13B ARL6 Ran Rheb Rap RGK
3.6.5.3: Protein-synthesizing GTPase	Prokaryotic IF-2 EF-Tu EF-G Eukaryotic
3.6.5.5-6: Polymerization motors	dynamin superfamily Dynamin Guanylate-binding protein Mitofusin-1 MX1 and MX2 OPA1 Tubulin

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

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References

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