Revision 1

#70180Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP

REACTIVITY:

H Mk

SENSITIVITY:

Endogenous

MW (kDa):

150

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q6PKG0

Entrez-Gene Id:

23367

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

LARP1 (D8J4F) Rabbit mAb recognizes endogenous levels of total LARP1 protein.

Species Reactivity:

Human, Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human LARP1 protein.

Background

La-related protein 1 (LARP1) is a ubiquitously expressed RNA binding protein that promotes both global and specific mRNA translation in cells (1). LARP1 belongs to the La-related protein family and contains two RNA binding domains, a La motif (LAM), and a neighboring RNA recognition motif-like (RRM-L) domain (1). Research studies indicate that LARP1 acts downstream of mTORC1 to facilitate cell proliferation and growth by promoting global mRNA translation and translation of mRNAs containing a 5'Terminal Oligo-Pyrimidine (5'TOP) motif, which code for translational machinery components (2,3). At the molecular level, LARP1 associates with 5'TOP mRNAs and multiple translation machinery components to positively regulate translation (2,4). Additional studies show that LARP1 expression is upregulated in hepatocellular carcinoma (HCC) patients and that high LARP1 expression in HCC negatively correlates with survival rate (5).

  1. Bayfield, M.A. et al. (2010) Biochim Biophys Acta 1799, 365-78.
  2. Tcherkezian, J. et al. (2014) Genes Dev 28, 357-71.
  3. Burrows, C. et al. (2010) Nucleic Acids Res 38, 5542-53.
  4. Aoki, K. et al. (2013) FEBS Lett 587, 2173-8.
  5. Xie, C. et al. (2013) J Transl Med 11, 272.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 1
#70180

LARP1 (D8J4F) Rabbit mAb

Western Blotting Image 1: LARP1 (D8J4F) Rabbit mAb Expand Image
Western blot analysis of extracts from various cell lines using LARP1 (D8J4F) Rabbit mAb.
Western Blotting Image 2: LARP1 (D8J4F) Rabbit mAb Expand Image
Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with siRNA targeting human LARP1 (+), using LARP1 (D8J4F) Rabbit mAb (upper) and α-Actinin (D6F6) XP® Rabbit mAb #6487 (lower).
Immunoprecipitation Image 1: LARP1 (D8J4F) Rabbit mAb Expand Image
Immunoprecipitation of LARP1 from HeLa cell extracts. Lane 1 is 10% input, lane 2 is immunoprecipitation with Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is immunoprecipitation with LARP1 (D8J4F) Rabbit mAb. Western blot analysis was performed using LARP1 (D8J4F) Rabbit mAb.