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RABGEF1
Rab effector protein acting as linker between gamma- adaptin, RAB4A or RAB5A. Involved in endocytic membrane fusion and membrane trafficking of recycling endosomes. Stimulates nucleotide exchange on RAB5A. Can act as a ubiquitin ligase. Interacts with RGS14; the interaction is GTP-dependent. Heterodimer with RABEP1. The heterodimer binds RAB4A and RAB5A that have been activated by GTP-binding. Interacts with RAB21, and with 100-fold lower affinity also with RAB22. Binds TSC2, GGA1, GGA2, GGA3, AP1G1 and AP1G2. Interacts with ubiquitinated EGFR. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
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| Protein type: Motility/polarity/chemotaxis |
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Cellular Component: recycling endosome; early endosome
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Molecular Function: protein binding; DNA binding; zinc ion binding; Rab guanyl-nucleotide exchange factor activity
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Biological Process: protein transport; endocytosis
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Reference #:
Q9UJ41 (UniProtKB)
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| Alt. Names/Synonyms: FLJ32302; RAB guanine nucleotide exchange factor (GEF) 1; Rab5 GDP/GTP exchange factor; Rabaptin-5-associated exchange factor for Rab5; Rabex-5; RABEX5; RABGEF1; RABX5; RAP1 |
| Gene Symbols: RABGEF1 |
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Molecular weight: 79,371 Da
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Basal Isoelectric point: 6.42
Predict pI for various phosphorylation states
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Protein-Specific Antibodies or siRNAs from Cell Signaling Technology®
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