Date published: 2025-12-13

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DHFR Antibody (A-9): sc-377091

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Datasheets
  • DHFR Antibody (A-9) is a mouse monoclonal IgG2b κ DHFR antibody, cited in 16 publications, provided at 200 µg/ml
  • specific for an epitope mapping between amino acids 125-165 near the C-terminus of DHFR of human origin
  • DHFR Antibody (A-9) is recommended for detection of DHFR and DHFRL1 of human origin and DHFR of mouse and rat origin by WB, IP, IF, IHC(P) and ELISA
  • Anti-DHFR Antibody (A-9) 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-IgG2b BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for DHFR Antibody (A-9) for WB and IHC(P) applications. These reagents are now offered in bundles with DHFR Antibody (A-9) (see ordering information below).

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DHFR Antibody (A-9) is a mouse monoclonal IgG2b kappa light chain antibody that detects DHFR protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry, and enzyme-linked immunosorbent assay (ELISA). Anti-DHFR antibody (A-9) 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. Dihydrofolate reductase (DHFR) plays a vital role in cellular metabolism by catalyzing the NADPH-dependent reduction of dihydrofolate to tetrahydrofolate, which is essential for the synthesis of purines, pyrimidines, and certain amino acids. DHFR (A-9) antibody targets a protein crucial in cancer therapy, as inhibiting DHFR activity can lead to DNA synthesis cessation and cell death, making DHFR a critical focus in chemotherapeutic agent development. Expression of methotrexate-resistant DHFR variants in normal hematopoietic cells represents a promising strategy to enhance methotrexate treatment efficacy by reducing toxicity in sensitive normal tissues, enabling higher therapeutic doses.

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

DHFR Antibody (A-9) References:

  1. Three-dimensional structure of M. tuberculosis dihydrofolate reductase reveals opportunities for the design of novel tuberculosis drugs.  |  Li, R., et al. 2000. J Mol Biol. 295: 307-23. PMID: 10623528
  2. Tobacco budworm dihydrofolate reductase is a promising target for insecticide discovery.  |  Walker, VK., et al. 2000. Eur J Biochem. 267: 394-403. PMID: 10632709
  3. Amplified gene location in chromosomal DNA affected recombinant protein production and stability of amplified genes.  |  Yoshikawa, T., et al. 2000. Biotechnol Prog. 16: 710-5. PMID: 11027161
  4. Methotrexate accumulates to similar levels in animals transplanted with normal versus drug-resistant transgenic marrow.  |  Belur, LR., et al. 2001. Cancer Res. 61: 1522-6. PMID: 11245460
  5. Analysis of alterations in gene expression after amplification of recombinant genes in CHO cells.  |  Grillari, J., et al. 2001. J Biotechnol. 87: 59-65. PMID: 11267699

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

DHFR Antibody (A-9)

sc-377091
200 µg/ml
$316.00

DHFR Antibody (A-9): m-IgGκ BP-HRP Bundle

sc-523182
200 µg Ab, 40 µg BP
$354.00

DHFR Antibody (A-9): m-IgG2b BP-HRP Bundle

sc-549093
200 µg Ab; 10 µg BP
$354.00

DHFR Antibody (A-9) AC

sc-377091 AC
500 µg/ml, 25% agarose
$416.00

DHFR Antibody (A-9) HRP

sc-377091 HRP
200 µg/ml
$316.00

DHFR Antibody (A-9) FITC

sc-377091 FITC
200 µg/ml
$330.00

DHFR Antibody (A-9) PE

sc-377091 PE
200 µg/ml
$343.00

DHFR Antibody (A-9) Alexa Fluor® 488

sc-377091 AF488
200 µg/ml
$357.00

DHFR Antibody (A-9) Alexa Fluor® 546

sc-377091 AF546
200 µg/ml
$357.00

DHFR Antibody (A-9) Alexa Fluor® 594

sc-377091 AF594
200 µg/ml
$357.00

DHFR Antibody (A-9) Alexa Fluor® 647

sc-377091 AF647
200 µg/ml
$357.00

DHFR Antibody (A-9) Alexa Fluor® 680

sc-377091 AF680
200 µg/ml
$357.00

DHFR Antibody (A-9) Alexa Fluor® 790

sc-377091 AF790
200 µg/ml
$357.00

DHFR (A-9) Neutralizing Peptide

sc-377091 P
100 µg/0.5 ml
$68.00

1:1000 dilution하여 western blot을 하였는데 band가 보이질 않습니다. secondary antibody가 mouse, rabbit, goat 중에 어떤 것인지 알고 싶습니다.

Asked by: 개느삼이
산타크루즈바이오테크놀러지에 문의 주셔서 감사합니다. sc-377091는 mouse 원 1st 항체이어서  rabbit, goat원 secondary antibody가 더 좋습니다.우리의 conventional secondary anti-mouse IgG reagents의 대체제품 m-IgGκ BP-HRP (sc-516102)도 강력히 추천합니다.우리가 제안하는 시작 희석 비율은 1;100,다시 시도해 보세요. 다른 문제 있으시면 기술지원팀에 연락하셔서 전화:86 21-60936350 이메일: asia@scbio.cn 또는 온라인문의로 문의하시면 됩니다. Thank you for your question. rabbit, goat origin 2nd antibody is better,we also recommend our recombinant alternative to conventional secondary anti-mouse IgG reagents.(sc-516102),We recommend 1:100 as the starting dilution ,please try again .If you have any other question ,please contact our Technical Service Department at email asia@scbio.cn,call us directly at  (86 21) 6093-6350, or contact us by live chat.
Answered by: Technical Service 11
Date published: 2025-09-09

How can DHFR (A-9): sc-377091 mouse monoclonal antibody be used for double or triple staining, if the other primary antibodies are also raised in mouse?

Asked by: jenni
In this case, we recommend using a directly conjugated mouse monoclonal primary antibody. DHFR (A-9): sc-377091 monoclonal antibody is currently available conjugated to phycoerythrin (sc-377091 PE), fluorescein (sc-377091 FITC), Alexa Fluor® 488 (sc-377091 AF488) or Alexa Fluor® 647 (sc-377091 AF647)
Answered by: Technical Service 11
Date published: 2017-01-17

How should the blocking peptide sc-377091 P be used?

Asked by: jenni
Thank you for your question. The blocking peptide is intended to be used as a negative control by preadsorbing the DHFR (A-9): sc-377091 with it prior to application. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/peptide-neutralization
Answered by: Technical Support 13
Date published: 2017-01-16
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Rated 5 out of 5 by from Works great in Western BlotI used this antibody to detect DHFR on whole cell lysates of NCI-H522 lung cancer cell line and worked very well. More details on the pic.
Date published: 2022-05-31
Rated 4 out of 5 by from Works well enoughStrong band at the right size for human cell lines
Date published: 2018-12-04
Rated 5 out of 5 by from Works well for western blotWorks well for western of whole cell extract at 1:1000 in 5% milk.
Date published: 2018-01-16
Rated 5 out of 5 by from Very clean and good antibodyI bought this antibody two months ago and I used it quite a lot, especially with siRNA against the protein. The band on the blot is very clean and crisp, quite easily detectable and no background. Very satisfied with the antibody.
Date published: 2017-10-09
Rated 5 out of 5 by from Extremely cleanGot a sample and tested on HT1080 and SKHEP1 cells, used 1:500 dilution on PVDF membrane and got super specific signal, great antibody at least in these cell lines.
Date published: 2017-08-24
Rated 2 out of 5 by from Not as expected!I bought this antibody using the ratings but the western blot did not turn out to be as great as I expected it be. I saw faint bands for DHFR with really high grainy background, even for my control samples.
Date published: 2017-07-07
Rated 5 out of 5 by from Superb WBGreat western blot results; also strong data for IHC
Date published: 2017-01-26
Rated 5 out of 5 by from Solid choice for WBStrong, distinct and clean bands in WB on 3T3-L1, C3H/10T1/2 and BW5147 whole cell lysates.
Date published: 2017-01-17
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DHFR Antibody (A-9) is rated 4.6 out of 5 by 12.
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