Date published: 2025-11-16

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Crk II Antibody (B-4): sc-390132

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Datasheets
  • Crk II Antibody (B-4) is a mouse monoclonal IgG1 κ, cited in 3 publications, provided at 200 µg/ml
  • raised against amino acids 190-242 of Crk II of human origin
  • Anti-Crk II Antibody (B-4) is recommended for detection of Crk II of mouse, rat and human origin by WB, IP, IF and ELISA
  • Anti-Crk II Antibody (B-4) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP is the preferred secondary detection reagent for Crk II Antibody (B-4) for WB applications. This reagent is now offered in a bundle with Crk II Antibody (B-4) (see ordering information below).

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Crk II Antibody (B-4) is a mouse monoclonal IgG1 kappa light chain antibody that detects Crk II in mouse, rat, and human samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). Anti-Crk II antibody (B-4) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. The Crk family of adapter proteins, which includes Crk-II, Crk-I, and Crk-L, is characterized by SH2 and SH3 domains that play crucial roles in cellular signaling. Crk II becomes rapidly tyrosine-phosphorylated upon insulin-like growth factor I (IGF-I) stimulation, making this phosphorylation essential for activating downstream signaling cascades that regulate cell growth, survival, and differentiation. The gene encoding Crk I and II is located on human chromosome 17p13, a region frequently associated with deletions and loss of heterozygosity in various cancers, highlighting Crk II′s importance in both normal cellular functions and potential role in tumorigenesis.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

Crk II Antibody (B-4) References:

  1. Generation of a dual-labeled fluorescence biosensor for Crk-II phosphorylation using solid-phase expressed protein ligation.  |  Cotton, GJ. and Muir, TW. 2000. Chem Biol. 7: 253-61. PMID: 10780925
  2. The insulin-like growth factor I receptor-induced interaction of insulin receptor substrate-4 and Crk-II.  |  Karas, M., et al. 2001. Endocrinology. 142: 1835-40. PMID: 11316748
  3. Biological and biochemical activity of v-Crk chimeras containing the SH2/SH3 regions of phosphatidylinositol-specific phospholipase C-gamma and Src.  |  Matsuda, M., et al. 1992. J Virol. 66: 115-21. PMID: 1370084
  4. Two species of human CRK cDNA encode proteins with distinct biological activities.  |  Matsuda, M., et al. 1992. Mol Cell Biol. 12: 3482-9. PMID: 1630456
  5. Solution structure and folding characteristics of the C-terminal SH3 domain of c-Crk-II.  |  Muralidharan, V., et al. 2006. Biochemistry. 45: 8874-84. PMID: 16846230
  6. Association of the v-crk oncogene product with phosphotyrosine-containing proteins and protein kinase activity.  |  Mayer, BJ. and Hanafusa, H. 1990. Proc Natl Acad Sci U S A. 87: 2638-42. PMID: 1690891
  7. Binding of transforming protein, P47gag-crk, to a broad range of phosphotyrosine-containing proteins.  |  Matsuda, M., et al. 1990. Science. 248: 1537-9. PMID: 1694307
  8. Mutagenic analysis of the v-crk oncogene: requirement for SH2 and SH3 domains and correlation between increased cellular phosphotyrosine and transformation.  |  Mayer, BJ. and Hanafusa, H. 1990. J Virol. 64: 3581-9. PMID: 1695251
  9. Identification and characterization of a high-affinity interaction between v-Crk and tyrosine-phosphorylated paxillin in CT10-transformed fibroblasts.  |  Birge, RB., et al. 1993. Mol Cell Biol. 13: 4648-56. PMID: 7687742
  10. Both the SH2 and SH3 domains of human CRK protein are required for neuronal differentiation of PC12 cells.  |  Tanaka, S., et al. 1993. Mol Cell Biol. 13: 4409-15. PMID: 8321240
  11. CSF-1 stimulation induces the formation of a multiprotein complex including CSF-1 receptor, c-Cbl, PI 3-kinase, Crk-II and Grb2.  |  Husson, H., et al. 1997. Oncogene. 14: 2331-8. PMID: 9178909
  12. Evidence for functional roles of Crk-II in insulin and epidermal growth factor signaling in Rat-1 fibroblasts overexpressing insulin receptors.  |  Ishiki, M., et al. 1997. Endocrinology. 138: 4950-8. PMID: 9348226

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Crk II Antibody (B-4)

sc-390132
200 µg/ml
$316.00

Crk II Antibody (B-4): m-IgG Fc BP-HRP Bundle

sc-526125
200 µg Ab; 10 µg BP
$354.00

Crk II Antibody (B-4) AC

sc-390132 AC
500 µg/ml, 25% agarose
$416.00

Crk II Antibody (B-4) HRP

sc-390132 HRP
200 µg/ml
$316.00

Crk II Antibody (B-4) FITC

sc-390132 FITC
200 µg/ml
$330.00

Crk II Antibody (B-4) PE

sc-390132 PE
200 µg/ml
$343.00

Crk II Antibody (B-4) Alexa Fluor® 488

sc-390132 AF488
200 µg/ml
$357.00

Crk II Antibody (B-4) Alexa Fluor® 546

sc-390132 AF546
200 µg/ml
$357.00

Crk II Antibody (B-4) Alexa Fluor® 594

sc-390132 AF594
200 µg/ml
$357.00

Crk II Antibody (B-4) Alexa Fluor® 647

sc-390132 AF647
200 µg/ml
$357.00

Crk II Antibody (B-4) Alexa Fluor® 680

sc-390132 AF680
200 µg/ml
$357.00

Crk II Antibody (B-4) Alexa Fluor® 790

sc-390132 AF790
200 µg/ml
$357.00

Hi. Does this Ab react with both Crk I and Crk II, or only Crk II? Thank you

Asked by: samkh
Thank you for your question. This antibody is specific for Crk II.
Answered by: Tech Service
Date published: 2020-02-18

Hi. Does this ab react with both Crk-L and Crk II, or only Crk II? Thanks.

Asked by: zchen
Thank you for your question. This mouse monoclonal antibody, Crk II (B-4): sc-390132, is specific for Crk II and is not expected to cross-react with Crk-L.
Answered by: Technical Support
Date published: 2017-12-07

When ordering "sc-390132 AF647" will it cost the same as the unstained antibody?

Asked by: jmjerome
Thank you for your question. The pricing for the antibody conjugates has not yet been updated on our website for this antibody. The price for sc-390132 AF647 is $314.00 USD for 200 µg/ml.
Answered by: Technical Support
Date published: 2017-11-27

I need to use an antibody to detect the protein in samples of equine origin. Do you know if sc-390132: Crk II (B-4) mouse monoclonal antibody will work?

Asked by: jenniferc
Please contact our Technical Service Department and we would be happy to perform sequence analysis and review our data to answer any questions you may have about additional species reactivity.
Answered by: Technical Support
Date published: 2023-08-13
  • y_2025, m_11, d_14, h_6CST
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Rated 5 out of 5 by from Good specificity in WB in HeLaGood specificity in WB in HeLa, K-562 and NIH/3T3 whole cell lysates. -SCBT QC
Date published: 2015-06-16
Rated 5 out of 5 by from Robust signal in WB in human transfectedRobust signal in WB in human transfected 293 whole cell lysates. -SCBT QC
Date published: 2015-01-23
Rated 5 out of 5 by from WB publishable data with mouse cell lysateWB publishable data with mouse cell lysate - SCBT Publication Review
Date published: 2013-07-24
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Crk II Antibody (B-4) is rated 5.0 out of 5 by 3.
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