Application
| WB, IHC, ICC |
|---|---|
| Primary Accession | Q6FI44 |
| Other Accession | NP_004153.2 |
| Host | Rabbit |
| Reactivity | Human, Mouse, Rat, Monkey, Bovine |
| Clonality | Polyclonal |
| Description | Rabbit Anti-Human Rab5 Polyclonal |
| Target/Specificity | Detects ~26kDa. |
| Other Names | Rab 5A Antibody, RAS associated protein RAB5A Antibody, Ras related protein Rab 5 A Antibody |
| Immunogen | Human Rab5 synthetic peptide conjugated to KLH; identical to dog Rab5 sequence over the residues |
| Purification | Protein A Purified |
| Storage | -20ºC |
| Storage Buffer | PBS, 50% glycerol, 0.09% sodium azide |
| Shipping Temperature | Blue Ice or 4ºC |
| Certificate of Analysis | 1 µl/ml of SPC-168 was sufficient for detection of Rab5 in 15 µg of HeLa lysate by ECL immunoblot analysis using Donkey anti-rabbit IgG:HRP as the secondary antibody. |
| Cellular Localization | Cell Membrane | Endosome | Early Endosome Membrane | Melanosome |
Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abcepta to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.
info@clinisciences.com, and receive a free "I Love Antibodies" mug.
Provided below are standard protocols that you may find useful for product applications.
Background
Rab5 is a 24kDa member of the Rab family of small guanosine triphosphatases (GTPases), Ras superfamily. Rab GTPases are central regulators of membrane trafficking in the eukaryotic cell. Their regulatory capacity depends on their ability to cycle between the GDP -bound inactive and GTP-bound active states. This conversion is regulated by GDP/GTP exchange factors (GEPs), GDP dissociation inhibitors (GDIs) and GTPase-activating proteins (GAPs) (1, 2). Activation of a Rab protein is coupled to its association with intracellular membranes, allowing it to recruit downstream effector proteins to the cytoplasmic surface of a subcellular compartment (3). Through these proteins, Rab GTPases regulate vesicle formation, actin- and tubulin-dependent vesicle movement, and membrane fusion(1). Rab proteins contain conserved regions involved in guanine-nucleotide binding, and hyper variable COHO-terminal domains with a cysteine motif implicated in subcellular targeting. Post-translational modification of the cysteine motif with one or two geranyl groups is essential for the membrane association and correct intracellular localization of Rab proteins(3). Each Rab shows a characteristic subcellular distribution (4). In particular, Rab5 is ubiquitously expressed in human tissues. It localizes mainly to early endosomes, but is also present on the plasma membrane. It regulates the fusion between endocytic vesicles and early endosomes, as well as the homotypic fusion between early endosomes (5). Among the proteins recruited by the GTP-bound active Rab5 are Rabaptin-5 and EEA1 (6). Anti-Rab5 may be used as an early endosome marker.
References
1. Stenmark H., and Olkkonen V.M. (2001) Genome Biol. 2: 3007.1-3007.7.
2. Takai Y., et al. (2001) Physiol. Rev. 8:, 153-208.
3. Ali B.R., et al. (2004) J. Cell Sci. 117: 6401-6412.
4. Zerial M., and McBride H. (2001) Nat. Rev. Mol. Cell Biol. 2: 107-117.
5. Sonnichsen B., et al. (2000) J. Cell Biol. 149: 901-913
6. Woodman P.G. (2000) Traffic. 1: 695-701.