Rabbit Recombinant Monoclonal RAB5A antibody. Early Endosome marker. Suitable for IHC-P, WB and reacts with Rat, Human, Mouse samples. Cited in 16 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
IHC-P | IP | Flow Cyt | WB | ICC/IF | |
---|---|---|---|---|---|
Human | Tested | Not recommended | Not recommended | Tested | Not recommended |
Mouse | Expected | Not recommended | Not recommended | Tested | Not recommended |
Rat | Tested | Not recommended | Not recommended | Tested | Not recommended |
Species | Dilution info | Notes |
---|---|---|
Species Rat | Dilution info 1/100 - 1/250 | Notes Perform heat-mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol. |
Species Human | Dilution info 1/100 - 1/250 | Notes Perform heat-mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Rat, Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info - | Notes ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody. |
Species Rat | Dilution info - | Notes ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody. |
Species Human | Dilution info - | Notes ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody. |
Species | Dilution info | Notes |
---|---|---|
Species Rat | Dilution info 1/1000 - 1/10000 | Notes - |
Species Mouse | Dilution info 1/1000 - 1/10000 | Notes - |
Species Human | Dilution info 1/1000 - 1/10000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Human, Rat | Dilution info - | Notes - |
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Small GTPase which cycles between active GTP-bound and inactive GDP-bound states. In its active state, binds to a variety of effector proteins to regulate cellular responses such as of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Active GTP-bound form is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. RAB5A is required for the fusion of plasma membranes and early endosomes (PubMed:10818110, PubMed:14617813, PubMed:15378032, PubMed:16410077). Contributes to the regulation of filopodia extension (PubMed:14978216). Required for the exosomal release of SDCBP, CD63, PDCD6IP and syndecan (PubMed:22660413). Regulates maturation of apoptotic cell-containing phagosomes, probably downstream of DYN2 and PIK3C3 (By similarity).
RAB5, RAB5A, Ras-related protein Rab-5A
Rabbit Recombinant Monoclonal RAB5A antibody. Early Endosome marker. Suitable for IHC-P, WB and reacts with Rat, Human, Mouse samples. Cited in 16 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Rab5 also known as Ras-related protein Rab-5A is a small GTPase of approximately 24 kDa. It is part of the Rab family of proteins and functions as an endosomal marker in cells. Rab5 is ubiquitously expressed but shows enriched expression in tissues with a high rate of endocytosis like the brain and liver. This protein plays a significant role in early endosome fusion and trafficking acting as an essential regulator of vesicular transport processes within the cell.
Rab5 regulates the early endocytic pathway by mediating vesicle docking and fusion processes. It is not a part of a large complex but interacts with a range of effector proteins that facilitate endosome maturation. Rab5's role as an endosomal marker makes it important for membrane trafficking receptor recycling and signal transduction. Researchers often identify Rab5 in cellular studies using endosome staining techniques or specific antibodies like Drosophila antibodies to visualize its function and distribution.
The endocytic network heavily involves Rab5 particularly influencing the endocytosis and endosomal signaling pathways. It frequently interacts with proteins such as EEA1 (Early Endosome Antigen 1) and Rabaptin-5 which are critical for endosomal membrane fusion. This mechanistic involvement ensures the correct transfer and processing of endocytic vesicles facilitating the continual cycle of membrane and receptor turnover in cells.
Rab5 dysfunction associates with neurological conditions such as Alzheimer's disease and cancer. Alterations in Rab5 levels or function can disrupt normal endosomal trafficking leading to amyloid beta peptide accumulation in Alzheimer's. Additionally Rab5's role in cancer relates to its regulation of growth factor receptors where its interaction with proteins like the PE marker influences tumor progression. Understanding Rab5 pathways and interactions paves the way for developing targeted therapeutics in these disorders.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
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All lanes: Western blot - Anti-Rab5 antibody [EPR5438] - Early Endosome Marker (ab109534)
Predicted band size: 24 kDa
Immunohistochemical staining of paraffin embedded human pancreas with purified ab109534 at a working dilution of 1 in 1000. The secondary antibody used is a HRP polymer for rabbit IgG. The sample is counter-stained with hematoxylin. Antigen retrieval was perfomed using Tris-EDTA buffer, pH 9.0. PBS was used instead of the primary antibody as the negative control, and is shown in the inset.
Blocking buffer: 5% NFDM/TBST
Dilution buffer: 5% NFDM/TBST
All lanes: Western blot - Anti-Rab5 antibody [EPR5438] - Early Endosome Marker (ab109534) at 1/5000 dilution
Lane 1: Mouse brain at 10 µg
Lane 2: Rat brain at 10 µg
All lanes: HRP goat anti-rabbit (H+L) at 1/1000 dilution
Predicted band size: 24 kDa
Observed band size: 24 kDa
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Pancreas tissue sections (with ADM and PanIN lesions) from KC mice labeling Rab5 with ab109534 at 1/200 dilution. Tissue was fixed with paraformaldehyde and permeabilized with TritonX100 0.1% for 10 min at room temperature. Heat-mediated antigen retrieval was performed using TRIS-EDTA pH9 buffer. Tissue sections were blocked with 10% goat serum for 1 hour at 20°C. A polyclonal goat anti-rabbit Alexa Fluor 488 secondary antibody was used at 1/500 dilution.
Blocking buffer: 5% NFDM/TBST
Dilution buffer: 5% NFDM/TBST
All lanes: Western blot - Anti-Rab5 antibody [EPR5438] - Early Endosome Marker (ab109534) at 1/5000 dilution
Lane 1: MCF7 cell lysate at 10 µg
Lane 2: HEK293 cell lysate at 10 µg
All lanes: HRP goat anti-rabbit (H+L) at 1/1000 dilution
Predicted band size: 24 kDa
Observed band size: 24 kDa
All lanes: Western blot - Anti-Rab5 antibody [EPR5438] - Early Endosome Marker (ab109534) at 1/1000 dilution
Lane 1: 293T cell lysate at 10 µg
Lane 2: HeLa cell lysate at 10 µg
Lane 3: Jurkat cell lysate at 10 µg
Predicted band size: 24 kDa
Immunohistochemical staining of Rab5 in paraffin embedded human brain tissue with unpurified ab109534, at 1/100 dilution.
Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.
ab109534 was shown to react with RAB5A in wild-type HAP1 cells in Western blot with loss of signal observed in a RAB5A knockout cell line. Wild-type HAP1 and RAB5A knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 5% milk in TBST for 1 hr before incubation with ab109534 overnight at 4 °C at a 1000 dilution. Blots were incubated with secondary antibodies at 0.2ug/mL before imaging.
These data were provided by YCharOS Inc., an open science company with the mission of characterizing commercially available antibody reagents for all human proteins. Abcam and YCharOS are working together to help address the reproducibility crisis by enabling the life science community to better evaluate commercially available antibodies.
All lanes: Western blot - Anti-Rab5 antibody [EPR5438] - Early Endosome Marker (ab109534) at 1/1000 dilution
Lane 1: Wild-type HAP1 lysate at 20 µg
Lane 2: RAB5A Knockout HAP1 lysate at 20 µg
Observed band size: 24 kDa
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