UniProt functional annotation for P08134



	UniProt functional annotation for P08134

UniProt code: P08134.

Organism: Homo sapiens (Human).

Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.

Function: Regulates a signal transduction pathway linking plasma membrane receptors to the assembly of focal adhesions and actin stress fibers. Serves as a microtubule-dependent signal that is required for the myosin contractile ring formation during cell cycle cytokinesis. Regulates apical junction formation in bronchial epithelial cells. {ECO:0000269|PubMed:16236794, ECO:0000269|PubMed:20974804}.

Subunit: Interacts with RTKN (By similarity). Interacts with AKAP13 (PubMed:11546812). Interacts with DIAPH1 (PubMed:15864301). Interacts with PKN2 (PubMed:20974804). Interacts with ROCK1 and ROCK2 (PubMed:8816443). Interacts with ARHGDIA (PubMed:20400958). Interacts with RIPOR1 (PubMed:27807006). {ECO:0000250, ECO:0000250|UniProtKB:Q62159, ECO:0000269|PubMed:11546812, ECO:0000269|PubMed:15864301, ECO:0000269|PubMed:20400958, ECO:0000269|PubMed:20974804, ECO:0000269|PubMed:27807006, ECO:0000269|PubMed:8816443}.

Subcellular location: Cell membrane {ECO:0000305}; Lipid-anchor {ECO:0000305}; Cytoplasmic side {ECO:0000305}. Cleavage furrow {ECO:0000269|PubMed:16236794}. Note=Translocates to the equatorial region before furrow formation in a ECT2-dependent manner.

Ptm: (Microbial infection) Glycosylated at Tyr-34 by Photorhabdus asymbiotica toxin PAU_02230. Mono-O-GlcNAcylation by PAU_02230 inhibits downstream signaling by an impaired interaction with diverse regulator and effector proteins of Rho and leads to actin disassembly. {ECO:0000269|PubMed:24141704}.

Ptm: (Microbial infection) Glucosylated at Thr-37 by C.difficile toxins TcdA and TcdB in the colonic epithelium (PubMed:24905543). Monoglucosylation completely prevents the recognition of the downstream effector, blocking the GTPases in their inactive form, leading to actin cytoskeleton disruption (PubMed:24905543). {ECO:0000269|PubMed:24905543}.

Similarity: Belongs to the small GTPase superfamily. Rho family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.


Organism:		Homo sapiens (Human).
Taxonomy:		Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.



Function:		Regulates a signal transduction pathway linking plasma membrane receptors to the assembly of focal adhesions and actin stress fibers. Serves as a microtubule-dependent signal that is required for the myosin contractile ring formation during cell cycle cytokinesis. Regulates apical junction formation in bronchial epithelial cells. {ECO:0000269\|PubMed:16236794, ECO:0000269\|PubMed:20974804}.


Subunit:		Interacts with RTKN (By similarity). Interacts with AKAP13 (PubMed:11546812). Interacts with DIAPH1 (PubMed:15864301). Interacts with PKN2 (PubMed:20974804). Interacts with ROCK1 and ROCK2 (PubMed:8816443). Interacts with ARHGDIA (PubMed:20400958). Interacts with RIPOR1 (PubMed:27807006). {ECO:0000250, ECO:0000250\|UniProtKB:Q62159, ECO:0000269\|PubMed:11546812, ECO:0000269\|PubMed:15864301, ECO:0000269\|PubMed:20400958, ECO:0000269\|PubMed:20974804, ECO:0000269\|PubMed:27807006, ECO:0000269\|PubMed:8816443}.
Subcellular location:		Cell membrane {ECO:0000305}; Lipid-anchor {ECO:0000305}; Cytoplasmic side {ECO:0000305}. Cleavage furrow {ECO:0000269\|PubMed:16236794}. Note=Translocates to the equatorial region before furrow formation in a ECT2-dependent manner.
Ptm:		(Microbial infection) Glycosylated at Tyr-34 by Photorhabdus asymbiotica toxin PAU_02230. Mono-O-GlcNAcylation by PAU_02230 inhibits downstream signaling by an impaired interaction with diverse regulator and effector proteins of Rho and leads to actin disassembly. {ECO:0000269\|PubMed:24141704}.
Ptm:		(Microbial infection) Glucosylated at Thr-37 by C.difficile toxins TcdA and TcdB in the colonic epithelium (PubMed:24905543). Monoglucosylation completely prevents the recognition of the downstream effector, blocking the GTPases in their inactive form, leading to actin cytoskeleton disruption (PubMed:24905543). {ECO:0000269\|PubMed:24905543}.
Similarity:		Belongs to the small GTPase superfamily. Rho family. {ECO:0000305}.