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Product Name
Rab5 Antibody
Catalog #
SPC-168D
Package size
100ug
Price
$228.00 USD
Bulk Quote
Alternate Product Sizes
SPC-168C
Type
Polyclonal
Conjugate
N/A
Datasheet
SPC 168 Rab5 Organelle Marker
Description
Anti-Rab5
Research Area
Cell Signaling, Neuroscience, Organelle Markers
Alternative Names
Rab 5A, RAS associated protein RAB5A, Ras related protein Rab 5 A
Clone Number
N/A
Host Species
Rabbit
Isotype
N/A
Immunogen
Human Rab5 synthetic peptide conjugated to KLH; identical to dog Rab5 sequence over the residues
Applications
WB, IF
Species Reactivity
Human, Mouse, Monkey, Bovine, Rat. Not tested in other species
Accession Number
NP_004153.2
Gene ID
5868
SwissProt
Q6FI44
Background Info
The antibody recognizes 26kDa Rab5 of the above species origins.
Recommended Dilutions
1:1000 (WB)
Form
Affinity Purified
Storage Buffer
PBS, 50% glycerol, 0.09% sodium azide
Concentration
1mg/mL
Certificate of Analysis
1 μL/mL of SPC-168 was sufficient for detection of free ubiquitin in 15μg of HeLa lysate by ECL immunoblot analysis using Donkey anti-rabbit IgG:HRP as the secondary antibody.
Storage Temp
-20°C
Shipping Temp
Blue Ice or 4°C

This antibody is available conjugated to several dyes. Please select one of the conjugates from the lists below:

ATTO Conjugates:

ATTO-Conjugates.pdf

Enzyme & Fluorescent Conjugates:

Enzyme-Fluorescent-Conjugate.pdf

Rab5 visualized using SPC-168, tested on Bouin's fixed paraffin embedded backskin sections of transgenic mice.
Courtesy of Dr. Turksen, Ottawa Hospital Research Institute, Canada.


Western blot analysis of Rab5 in a human cell line mix using a 1:1000 dilution of SPC-168.
Research 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 hypervariable COOH-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.
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