Revision 4
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, IF-IC, FC-FP, FC-L

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

200

Source/Isotype:

Rabbit IgG

UniProt ID:

#P56199

Entrez-Gene Id:

3672

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunofluorescence (Immunocytochemistry) 1:200 - 1:800
Flow Cytometry (Fixed/Permeabilized) 1:200 - 1:800
Flow Cytometry (Live) 1:100 - 1:400

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

Integrin α1/CD49a (E5D6Q) Rabbit mAb recognizes endogenous levels of total integrin α1/CD49a protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the amino terminus of human integrin α1/CD49a protein.

Background

Integrins are α/β heterodimeric cell surface receptors that play a pivotal role in cell adhesion and migration, as well as in growth and survival (1,2). The integrin family contains at least 18 α and 8 β subunits that form 24 known integrins with distinct tissue distribution and overlapping ligand specificities (3). Integrins not only transmit signals to cells in response to the extracellular environment (outside-in signaling), but also sense intracellular cues to alter their interaction with the extracellular environment (inside-out signaling) (1,2).

Integrin α1 (CD49a, VLA-1, ITGA1) pairs with integrin β1 to form an α1β1 dimer on the cell surface. This integrin dimer plays important roles in colorectal cancer and pancreatic cancer cell proliferation, migration, and metastasis (4-6). The cytoplasmic tail of integrin α1 activates ERK and FAK/Src signaling to promote these biological processes (7,8). In immune systems, integrin α1 expression defines a tissue-resident cytotoxic T cell population contributing to both cancer immunity and vitiligo, an autoimmune disease (9,10).

  1. Liu, S. et al. (2000) J Cell Sci 113 (Pt 20), 3563-71.
  2. Hood, J.D. and Cheresh, D.A. (2002) Nat Rev Cancer 2, 91-100.
  3. Hogervorst, F. et al. (1993) J Cell Biol 121, 179-91.
  4. Gharibi, A. et al. (2017) Sci Rep 7, 10060.
  5. Boudjadi, S. et al. (2017) Cancers (Basel) 9, pii: E96. doi: 10.3390/cancers9080096.
  6. Shang, L. et al. (2017) Oncotarget 8, 76816-31.
  7. Abair, T.D. et al. (2008) Blood 112, 3242-54.
  8. Van Slambrouck, S. et al. (2007) Int J Oncol 31, 1501-8.
  9. Cheuk, S. et al. (2017) Immunity 46, 287-300.
  10. Molodtsov, A. and Turk, M.J. (2018) Front Immunol 9, 2810.

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 IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized) FC-L: Flow Cytometry (Live)

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.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
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 4
#87841

Integrin α1/CD49a (E5D6Q) Rabbit mAb

Western Blotting Image 1: Integrin α1/CD49a (E5D6Q) Rabbit mAb Expand Image
Western blot analysis of extracts from various cell lines using Integrin α1/CD49a (E5D6Q) Rabbit mAb (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). Negative expression of integrin α1/CD49a protein in ZR-75-1 cells is consistent with the predicted expression pattern.
Immunofluorescence Image 1: Integrin α1/CD49a (E5D6Q) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of HT-29 cells (left, positive) and ZR-75-1 cells (right, negative) using Integrin α1/CD49a (E5D6Q) Rabbit mAb (green) and DAPI #4083 (blue).
Flow Cytometry Image 1: Integrin α1/CD49a (E5D6Q) Rabbit mAb Expand Image
Flow cytometric analysis of fixed and permeabilized ZR-75-1 cells (blue, negative) and HuH-7 cells (green, positive) using ITGA1 (E5D6Q) Rabbit mAb (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
Flow Cytometry Image 1: Integrin α1/CD49a (E5D6Q) Rabbit mAb Expand Image
Flow cytometric analysis of live ZR-75-1 cells (blue, negative) and HuH-7 cells (green, positive) using Integrin α1/CD49a (E5D6Q) Rabbit mAb (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.