Date published: 2025-11-21

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IQGAP2 Antibody (A-4): sc-17835

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Datasheets
  • IQGAP2 Antibody (A-4) is a mouse monoclonal IgG1 κ IQGAP2 antibody, cited in 2 publications, provided at 200 µg/ml
  • raised against amino acids 519-727 mapping to an internal region of IQGAP2 of human origin
  • IQGAP2 Antibody (A-4) is recommended for detection of IQGAP2 of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA
  • Anti-IQGAP2 Antibody (A-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, m-IgG1 BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for IQGAP2 Antibody (A-4) for WB and IHC(P) applications. These reagents are now offered in bundles with IQGAP2 Antibody (A-4) (see ordering information below).

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IQGAP2 Antibody (A-4) is a mouse monoclonal IgG1 kappa light chain antibody that detects IQGAP2 protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry, and enzyme-linked immunosorbent assay (ELISA). Anti-IQGAP2 antibody (A-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. IQGAP2 plays a crucial role in cellular signaling and cytoskeletal dynamics, acting as a scaffold that facilitates interactions between small GTPases, such as Cdc42 and Rac1, and other signaling molecules. These interactions are vital for regulating cadherin-mediated cell-cell adhesion, which is essential for maintaining tissue integrity and cellular communication. IQGAP2, along with IQGAP1 homolog, contains several conserved domains, including a RasGAP domain and multiple calmodulin-binding domains, which are important for actin binding and GTPase regulation. IQGAP2 can bind to both active GTP-bound and inactive GDP-bound forms of Cdc42, allowing modulation of GTPase activity and influence on various cellular processes, including cell migration and proliferation. IQGAP2′s interactions with other proteins, such as Rac1 and calmodulin, further underscore significance in orchestrating complex signaling pathways that govern cellular behavior.

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

IQGAP2 Antibody (A-4) References:

  1. IQGAP1 and calmodulin modulate E-cadherin function.  |  Li, Z., et al. 1999. J Biol Chem. 274: 37885-92. PMID: 10608854
  2. Gastric hyperplasia in mice lacking the putative Cdc42 effector IQGAP1.  |  Li, S., et al. 2000. Mol Cell Biol. 20: 697-701. PMID: 10611248
  3. Reduced IQGAP2 expression promotes EMT and inhibits apoptosis by modulating the MEK-ERK and p38 signaling in breast cancer irrespective of ER status.  |  Kumar, D., et al. 2021. Cell Death Dis. 12: 389. PMID: 33846302
  4. IQGAP2 acts as an independent prognostic factor and is related to immunosuppression in DLBCL.  |  Tang, T., et al. 2021. BMC Cancer. 21: 603. PMID: 34034707
  5. Reduced IQGAP2 Promotes Bladder Cancer through Regulation of MAPK/ERK Pathway and Cytokines.  |  Song, F., et al. 2022. Int J Mol Sci. 23: PMID: 36362301
  6. Upregulation of IQGAP2 by EBV transactivator Rta and its influence on EBV life cycle.  |  Lin, KM., et al. 2023. J Virol. 97: e0054023. PMID: 37504571
  7. IQGAP2 regulates blood-brain barrier immune dynamics.  |  Katdare, KA., et al. 2024. bioRxiv.. PMID: 38645082
  8. N6-methyladenosine-modified ALDH9A1 modulates lipid accumulation and tumor progression in clear cell renal cell carcinoma through the NPM1/IQGAP2/AKT signaling pathway.  |  Tan, D., et al. 2024. Cell Death Dis. 15: 520. PMID: 39039052
  9. Identification of a putative effector for Cdc42Hs with high sequence similarity to the RasGAP-related protein IQGAP1 and a Cdc42Hs binding partner with similarity to IQGAP2.  |  McCallum, SJ., et al. 1996. J Biol Chem. 271: 21732-7. PMID: 8702968
  10. The Ras GTPase-activating-protein-related human protein IQGAP2 harbors a potential actin binding domain and interacts with calmodulin and Rho family GTPases.  |  Brill, S., et al. 1996. Mol Cell Biol. 16: 4869-78. PMID: 8756646
  11. Characterization of the interactions between the small GTPase Cdc42 and its GTPase-activating proteins and putative effectors. Comparison of kinetic properties of Cdc42 binding to the Cdc42-interactive domains.  |  Zhang, B., et al. 1997. J Biol Chem. 272: 21999-2007. PMID: 9268338
  12. IQGAP1 integrates Ca2+/calmodulin and Cdc42 signaling.  |  Ho, YD., et al. 1999. J Biol Chem. 274: 464-70. PMID: 9867866

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

IQGAP2 Antibody (A-4)

sc-17835
200 µg/ml
$316.00

IQGAP2 Antibody (A-4): m-IgG Fc BP-HRP Bundle

sc-528330
200 µg Ab; 10 µg BP
$354.00

IQGAP2 Antibody (A-4): m-IgGκ BP-HRP Bundle

sc-520676
200 µg Ab, 40 µg BP
$354.00

IQGAP2 Antibody (A-4): m-IgG1 BP-HRP Bundle

sc-542870
200 µg Ab; 20 µg BP
$354.00

IQGAP2 Antibody (A-4) AC

sc-17835 AC
500 µg/ml, 25% agarose
$416.00

IQGAP2 Antibody (A-4) HRP

sc-17835 HRP
200 µg/ml
$316.00

IQGAP2 Antibody (A-4) FITC

sc-17835 FITC
200 µg/ml
$330.00

IQGAP2 Antibody (A-4) PE

sc-17835 PE
200 µg/ml
$343.00

IQGAP2 Antibody (A-4) Alexa Fluor® 488

sc-17835 AF488
200 µg/ml
$357.00

IQGAP2 Antibody (A-4) Alexa Fluor® 546

sc-17835 AF546
200 µg/ml
$357.00

IQGAP2 Antibody (A-4) Alexa Fluor® 594

sc-17835 AF594
200 µg/ml
$357.00

IQGAP2 Antibody (A-4) Alexa Fluor® 647

sc-17835 AF647
200 µg/ml
$357.00

IQGAP2 Antibody (A-4) Alexa Fluor® 680

sc-17835 AF680
200 µg/ml
$357.00

IQGAP2 Antibody (A-4) Alexa Fluor® 790

sc-17835 AF790
200 µg/ml
$357.00

Hi I am using IQGAP1 and IQGAP2 antibodies for my studies. I would like to know their specificity. Will there be any cross interaction between these antibodies.

Asked by: anshu1997
Thank you for your question. Our IQGAP1 and IQGAP2 antibodies are specific for IQGAP1 or IQGAP2, and should not cross react with the other protein.
Answered by: Tech Service
Date published: 2020-06-01

I am using IQGAP2 (A-4): sc-17835 monoclonal antibody to stain paraffin embedded tissue. Do you recommend antigen retrieval when using this antibody?

Asked by: DefinitelyNotMatt
We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-02-24
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Rated 5 out of 5 by from Very good for WBWorks well in WB on multiple samples, (whole brain lysate, HEK293). When used at 1:1,000 in 1% non-fat dry milk a single major band of the correct size is observed with some very minor additional bands.
Date published: 2018-04-13
Rated 2 out of 5 by from Okay for western blotUsed 100 ug of tissue on a western blot and could see a band in the correct position, some non-specific bands make it slightly difficult to discern correct molecular weight other than that.
Date published: 2018-02-21
Rated 4 out of 5 by from Seemed good for western blottingI used mouse Hepa1-6 cell lysates with loading gradient to check this antibody in western blotting. Antibody was diluted 1000X and incubated at 4℃ overnight. The exposure results showed several bands from 130-170KD. But I didn’t use si specific genes to check whether this band was specific.
Date published: 2017-08-18
Rated 5 out of 5 by from completely workedOverexpressed GFP-IQ2 (human clone) in 293 cells was detected. endogenous IQ2 in 293 also. it did not cross overexpressed IQ1 and 3 1/1000 dil in 2% BSA TBST, o/n reaction.
Date published: 2017-03-23
Rated 5 out of 5 by from Great WB antibodyThis IQGAP2 monoclonal antibody works great in WB, producing strong bands with minimal background in NCI-H929 whole cell lysate and human liver tissue extract
Date published: 2017-01-31
Rated 5 out of 5 by from Produced exceptional immunoperoxidase cytoskeletalProduced exceptional immunoperoxidase cytoskeletal staining in formalin fixed, paraffin-embedded human pancreas tissue. -SCBT QC
Date published: 2015-05-03
Rated 4 out of 5 by from Publishable data in WB using human AGSPublishable data in WB using human AGS, MKN45 cell lines. -SCBT Publication Review
Date published: 2015-05-03
Rated 4 out of 5 by from Strong bands seen in WB using Hep G2 wholeStrong bands seen in WB using Hep G2 whole cell lysate and mouse and rat liver extracts. -SCBT QC
Date published: 2015-04-26
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IQGAP2 Antibody (A-4) is rated 4.2 out of 5 by 9.
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