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Recombinant fragment within Human LRRK2 aa 950 to the C-terminus. The exact sequence is proprietary.
Well-characterized antibodies to efficiently detect and purify LRRK2 protein are a critical need in the Parkinson's Disease (PD) research community. To help accelerate LRRK2 research, The Michael J. Fox Foundation (MJFF), working with Abcam, has generated unique and high quality LRRK2 rabbit monoclonal antibodies to be widely available for PD research community.
LRRK2 (Leucine-rich repeat kinase 2, dardarin) is a protein kinase belonging to the ROCO family, which is defined by the presence of a ROC (Ras/GTPase of complex proteins) domain and COR (C-terminal of Roc) region. LRRK2 exhibits kinase activity whereby it can undergo autophosphorylation and can phosphorylate generic substrates. In addition, the GTPase domain of LRRK2 can mediate GDP (guanosine-5′-diphosphate)/GTP (guanosine-5′-triphosphate) binding as well as GTP hydrolysis.
LRRK2 is mutated in a significant number of Parkinson's disease (PD) patients. Mutations in this gene account for 4% of PD, and are observed in 1% of sporadic PD patients. Clinical symptoms of patients carrying PD-associated mutations of LRRK2 are indistinguishable from typical sporadic PD. The spectra of neuropathological features of PARK8 (type 8), the type corresponding to LRRK2, is broad and appears to encompass those associated with other familial PD cases such as PARK1 (alpha-synuclein) and PARK2 (Parkin). Patients with this gene mutation have typical relatively late onset Parkinsonism with features comparable with idiopathic PD; symptoms include asymmetric rest tremor, bradykinesia, rigidity, and a good response to 3,4-dihyroxy-l-phenylalanine (l-DOPA). The pathology of cases with LRRK2 mutations is pleomorphic.
For more characterization data and protocols using this LRRK2 Antibody, please refer to Davies, et al. 2013. Biochemical J 453(1):101-113 [PMID: 23560750]
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 rabbit monoclonal antibody.
Our Abpromise guarantee covers the use of ab133474 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/200 - 1/500. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.|
|WB||1/10000 - 1/50000. Predicted molecular weight: 286 kDa.|
|IP||Use at an assay dependent concentration. (2-5 µg)|
|IHC-FrFl||Use at an assay dependent concentration. PubMed: 23560750|
Lane 1: Wild type A549 whole cell lysate (20 µg)
Lane 2: Wild type MEF whole cell lysate (20 µg)
Lane 3: LRRK2 knockout A549 whole cell lysate (20 µg)
Lane 4: LRRK2 knockout MEF whole cell lysate (20 µg)
Lanes 1 - 4: Merged signal (red and green). Green - ab133474 observed at 286 kDa. Red - loading control, ab18058, observed at 130 kDa.
ab133474 was shown to recognize LRRK2 in wild type A549 and MEF cells along with additional cross reative bands. Whilst signal was not seen in LRRK2 knockout cells. Wild-type and LRRK2 knockout samples were subjected to SDS-PAGE. Ab133474 and ab18058 (Mouse anti Vinculin loading control) were incubated overnight at 4°C at 10000 dilution and 1/10000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.
Wild-type and LRRK2 knockout MEF and A549 cells were provide as a generous gift from Professor Dario Alessi, MRC Protein Phosphorylation and Ubiquitination Unit (University of Dundee).
Immunohistochemical analysis of mouse brain tissue, staining LRRK2 with ab133474.
Antigen retrieval was performed by heat mediation and tissue was blocked with 2% goat serum. Sections were incubated with primary antibody (1/200) overnight at 4°C. An AlexaFluor®488-conjugated goat anti-rabbit IgG was used as the secondary antibody.
This image is courtesy of Zhuohua Zhang Lab (Sanford-Burnham Medical Research Institute)
ab133474 staining LRRK2 in Neuro-2a (Mouse neuroblastoma) cell line by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with 4% paraformaldehyde, permeabilized with 0.1% Triton X-100. Samples were incubated with primary antibody (1/500). ab150077 was used as the secondary antibody (1/1000). Tubulin stained using ab7291 (1/1000) and ab150120 (1/1000) as the secondary. Nuclear counter stained with DAPI.
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