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Information on EC 3.6.5.2 - small monomeric GTPase

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EC Tree
IUBMB Comments
A family of about 50 enzymes with a molecular mass of 21 kDa that are distantly related to the alpha-subunit of heterotrimeric G-protein GTPase (EC 3.6.5.1). They are involved in cell-growth regulation (Ras subfamily), membrane vesicle traffic and uncoating (Rab and ARF subfamilies), nuclear protein import (Ran subfamily) and organization of the cytoskeleton (Rho and Rac subfamilies).
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This record set is specific for:
UNIPROT: Q9D3G9
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
k-ras, cdc42, h-ras, small gtpase, ef-tu, rho gtpase, rab11, rab3a, rab27a, rap1a, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
RhoH
initially named translation three four, RhoH is a GTPase-deficient so-called atypical Rho GTPase, RhoH is only found in vertebrates
GTP-phosphohydrolase
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GTPase
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guanine triphosphatase
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guanosine 5'-triphosphatase
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guanosine triphosphatase
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ribosomal GTPase
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
phosphorous acid anhydride hydrolysis
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SYSTEMATIC NAME
IUBMB Comments
GTP phosphohydrolase (cell-regulating)
A family of about 50 enzymes with a molecular mass of 21 kDa that are distantly related to the alpha-subunit of heterotrimeric G-protein GTPase (EC 3.6.5.1). They are involved in cell-growth regulation (Ras subfamily), membrane vesicle traffic and uncoating (Rab and ARF subfamilies), nuclear protein import (Ran subfamily) and organization of the cytoskeleton (Rho and Rac subfamilies).
CAS REGISTRY NUMBER
COMMENTARY hide
9059-32-9
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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
additional information
?
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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
additional information
?
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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
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ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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UniProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
RhoH is specifically expressed in hematopoietic cells
Manually annotated by BRENDA team
RhoH is expressed strongest in T-lymphocytes and acts as a positive regulatory factor for thymocyte selection and T-cell receptor signalling
Manually annotated by BRENDA team
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
only the membrane-localised form of RhoH is able to downregulate Rac1 efficiently
Manually annotated by BRENDA team
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
RHOH_MOUSE
191
0
21324
Swiss-Prot
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POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
medicine
neither the overall survival nor the disease-free survival rate in diffuse large B-cell lymphoma can be linked to hypermutation of the RHOH gene
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Fueller, F.; Kubatzky, K.F.
The small GTPase RhoH is an atypical regulator of haematopoietic cells
Cell Commun. Signal.
6
6-6
2008
Homo sapiens (Q15669), Homo sapiens, Mus musculus (Q9D3G9), Mus musculus
Manually annotated by BRENDA team