Revision 3

#59002Store 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

SENSITIVITY:

Endogenous

MW (kDa):

163

SOURCE:

Rabbit

UniProt ID:

#P01023

Entrez-Gene Id:

2

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

α-2-Macroglobulin Antibody recognizes endogenous levels of total α-2-Macroglobulin protein.

Species Reactivity:

Human

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro631 of human α-2-Macroglobulin protein.

Background

α-2-Macroglobulin (A2M) is a conserved tetrameric pan protease inhibitor found in many biological fluids, including plasma and cerebral spinal fluid. A2M can bind to most proteases, as well as growth factors, hormones, and cytokines. Clearance of A2M-bound proteins is mediated by low-density lipoprotein receptor-related protein 1 (LRP1/CD91) (1). Blood A2M levels decrease with age in humans, and this decrease may promote tumor development (2,3). In rodents, A2M modulates tumor cell adhesion, migration, and growth through inhibition of PI3K/Akt and SMAD pathways (3). Conversely, interaction with MMP2 may inhibit MMP2 activity in aged rat kidney, resulting in age-related accumulation of ECM and fibrosis (4). A2M may be a useful biomarker for liver fibrosis (5).

  1. Cater, J.H. et al. (2019) Oxid Med Cell Longev 2019, 5410657.
  2. Birkenmeier, G. et al. (2003) Exp Neurol 184, 153-61.
  3. Kurz, S. et al. (2017) PLoS One 12, e0189514.
  4. Kim, K.M. et al. (2018) Oncotarget 9, 5588-99.
  5. Pitekova, B. et al. (2017) Bratisl Lek Listy 118, 658-61.

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 3
#59002

α-2-Macroglobulin Antibody

Western Blotting Image 1: α-2-Macroglobulin Antibody Expand Image
Western blot analysis of extracts from various cell lines using α-2-Macroglobulin Antibody (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). Low expression of α-2-Macroglobulin protein in SK-BR-3 cells is consistent with predicted expression patterns, confirming specificity of the antibody for α-2-Macroglobulin.
Immunoprecipitation Image 1: α-2-Macroglobulin Antibody Expand Image
Immunoprecipitation of α-2-Macroglobulin protein from Hep G2 cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is α-2-Macroglobulin Antibody. Western blot analysis was performed using α-2-Macroglobulin Antibody. Anti-rabbit IgG, HRP-linked Antibody #7074 was used as the secondary antibody.