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          • Primary Antibodies ›
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          CD28 Antibodies

          Antibodies that detect CD28 can be used in several scientific applications, including Flow Cytometry, Western Blot, ELISA, Functional Assay and Immunohistochemistry. These antibodies target CD28 in Human, Mouse, Rat, Bovine and Non-human primate samples. Our CD28 monoclonal, recombinant... Antibodies that detect CD28 can be used in several scientific applications, including Flow Cytometry, Western Blot, ELISA, Functional Assay and Immunohistochemistry. These antibodies target CD28 in Human, Mouse, Rat, Bovine and Non-human primate samples. Our CD28 monoclonal, recombinant monoclonal and polyclonal antibodies... Antibodies that detect CD28 can be used in several scientific applications, including Flow Cytometry, Western Blot, ELISA, Functional Assay and Immunohistochemistry. These antibodies target CD28 in Human, Mouse, Rat, Bovine and Non-human primate samples. Our CD28 monoclonal, recombinant monoclonal and polyclonal antibodies are developed in Mouse, Rabbit, Syrian Hamster, Goat, Hamster, Human, Rat and Alpaca. These antibodies have been verified by Relative expression and Cell treatment to confirm specificity to CD28. Find the CD28 antibody that fits your needs. Choose from 1 of 167 CD28 antibodies, which have been validated in experiments with 1113 publications and 542 images featured in our data gallery.

          Browse...
          Antibodies that detect CD28 can be used in several scientific applications, including Flow Cytometry, Western Blot, ELISA, Functional Assay and Immunohistochemistry. These antibodies target CD28 in Human, Mouse, Rat, Bovine and Non-human primate samples. Our CD28 monoclonal, recombinant monoclonal and polyclonal antibodies are developed in Mouse, Rabbit, Syrian Hamster, Goat, Hamster, Human, Rat and Alpaca. These antibodies have been verified by Relative expression and Cell treatment to confirm specificity to CD28. Find the CD28 antibody that fits your needs. Choose from 1 of 167 CD28 antibodies, which have been validated in experiments with 1113 publications and 542 images featured in our data gallery.

          Browse primary antibodies for WB, Flow, IHC, ICC/IF, ELISA, IP, and other applications. Antibodies with Advanced Verification data have been validated for specificity to ensure that the antibody binds to the antigen stated. If you cannot find the antibody you're looking for, contact us today to develop custom antibodies for specific targets, species and applications.

          Target Information

          CD28 antigen is a 44 kDa disulfide linked homodimeric T cell specific surface glycoprotein. CD28 is a cell adhesion molecule of the immunoglobulin superfamily which is constitutively expressed on most peripheral blood T lymphocytes. Moreover, CD28 is the critical T cell costimulatory receptor that provides the cell the important second activation signal by binding CD80 and CD86 which are expressed by antigen presenting cells. In addition to its co-stimulation role, CD28 functions by preventing T cells from entering an anergic-hyporesponsive state or from undergoing premature apoptotic cell death. In murine peripheral lymphoid organs and in the blood, all CD4+ and CD8+ T cells express CD28. In the thymus, CD28 expression is highest on immature CD3-, CD8+ and CD4+8+ cells, and on CD4-8- cells that express alpha/beta and gamma/delta TCR. The level of CD28 on mature CD4+ and CD8+ alpha/beta TCR+ thymocytes is two- to fourfold lower than on the immature cells. Diseases associated with CD28 dysfunction include mycosis fungiodes and Sezary's Disease.

          Synonyms

          antigen CD28; Cd28; CD28 antigen; CD28 antigen (Tp44); CD28 isoform; CD28 isoform 2; CD28 molecule; CD28 precursor protein; CD28 protein; CD28 protein precursor; CD28RNA; cell surface protein; CHT28; contains partial extracellular domain; costimulatory molecule B7 receptor CD28; EGK_04709; MGC138290; sCD28; soluble CD28; T44; T-cell costimulatory molecule CD28; T-cell costimulatory molecule Tp44; T-cell-specific surface glycoprotein CD28; T-cell-specific surface glycoprotein CD28 homolog; TP44

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          Clicking the images or links will redirect you to a website hosted by BenchSci that provides third-party scientific content. Neither the content nor the BenchSci technology and processes for selection have been evaluated by us; we are providing them as-is and without warranty of any kind, including for use or application of the Thermo Fisher Scientific products presented.

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          167 results
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          167 results
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), eBioscience™
          23
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          IHC Flow IP Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 14-0289-82
          Invitrogen
          CD28 Monoclonal Antibody (37.51), Functional Grade, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), Functional Grade, eBioscience™
          1
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 16-0281-82
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Functional Grade, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Functional Grade, eBioscience™
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 16-0289-81
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2)
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2)
          Advanced Verification
          4
          Target
          Human
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009M
          Invitrogen
          CD28 Recombinant Human Monoclonal Antibody (CD28.2)
          Invitrogen
          CD28 Recombinant Human Monoclonal Antibody (CD28.2)
          Advanced Verification
          3
          Target
          Human
          Details
          Human Recombinant Monoclonal
          Application
          Flow ELISA Neu
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009H
          Invitrogen
          CD28 Monoclonal Antibody (37.51), PE, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), PE, eBioscience™
          Advanced Verification
          8
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 12-0281-82
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 647
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 647
          Advanced Verification
          4
          Target
          Human
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009MP647
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Biotin, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Biotin, eBioscience™
          31
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 13-0289-82

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), FITC, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), FITC, eBioscience™
          23
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 11-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), eFluor™ 450, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), eFluor™ 450, eBioscience™
          23
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 48-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (37.51), Biotin, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), Biotin, eBioscience™
          21
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 13-0281-82
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE-Cyanine7, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE-Cyanine7, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 25-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (37.51), eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), eBioscience™
          16
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          IHC Flow IP Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 14-0281-82
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), APC, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), APC, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 17-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PerCP-Cyanine5.5, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PerCP-Cyanine5.5, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 45-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 12-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), APC-eFluor™ 780, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), APC-eFluor™ 780, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 47-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE-eFluor™ 610, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE-eFluor™ 610, eBioscience™
          18
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 61-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Alexa Fluor™ 700, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Alexa Fluor™ 700, eBioscience™
          13
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 56-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 436, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 436, eBioscience™
          13
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 62-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 600, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 600, eBioscience™
          13
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 63-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 645, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Super Bright™ 645, eBioscience™
          13
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 64-0289-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (37.51), APC, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), APC, eBioscience™
          8
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 17-0281-82

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (37.51), PerCP-Cyanine5.5, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), PerCP-Cyanine5.5, eBioscience™
          7
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 45-0281-80

          25 µg

          Invitrogen
          CD28 Monoclonal Antibody (37.51), PE-Cyanine7, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (37.51), PE-Cyanine7, eBioscience™
          7
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 25-0281-82

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (CD28.6), Functional Grade, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.6), Functional Grade, eBioscience™
          2
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          WB Flow Neu Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 16-0288-81
          Invitrogen
          CD28 Monoclonal Antibody (5B8), APC, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (5B8), APC, eBioscience™
          2
          Target
          Dog
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 17-0282-42

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (JJ319), Functional Grade, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (JJ319), Functional Grade, eBioscience™
          1
          Target
          Rat
          Details
          Mouse Monoclonal
          Application
          Flow Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 16-0280-81
          Invitrogen
          CD28 Monoclonal Antibody (1C6), Functional Grade, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (1C6), Functional Grade, eBioscience™
          1
          Target
          Dog
          Details
          Mouse Monoclonal
          Application
          Flow Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 16-0283-82
          Invitrogen
          CD28 Monoclonal Antibody (JJ319), eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (JJ319), eBioscience™
          1
          Target
          Rat
          Details
          Mouse Monoclonal
          Application
          Flow IP Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 14-0280-85

          500 µg

          Invitrogen
          CD28 Monoclonal Antibody (10F3)
          Invitrogen
          CD28 Monoclonal Antibody (10F3)
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          ICC/IF Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # CD2800
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 488
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 488
          Advanced Verification
          4
          Target
          Human
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009MP488
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 555
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 555
          Advanced Verification
          4
          Target
          Human
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009MP555
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 594
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (CD28.2), Alexa Fluor™ Plus 594
          Advanced Verification
          4
          Target
          Human
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 740009MP594
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), FITC
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), FITC
          3
          Target
          Human Non-human primate
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA1-10169

          100 Tests

          Invitrogen
          CD28 Monoclonal Antibody (37.51)
          Invitrogen
          CD28 Monoclonal Antibody (37.51)
          2
          Target
          Mouse
          Details
          Syrian hamster Monoclonal
          Application
          IHC (F) ICC/IF Flow IP Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA1-10172

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2)
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2)
          2
          Target
          Human Non-human primate
          Details
          Mouse Monoclonal
          Application
          WB IHC (F) ICC/IF Flow IP Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA1-10166

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), PE
          2
          Target
          Human Non-human primate
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA1-10170

          100 Tests

          Invitrogen
          CD28 Polyclonal Antibody
          Invitrogen
          CD28 Polyclonal Antibody
          Advanced Verification
          5
          Target
          Human
          Details
          Rabbit Polyclonal
          Application
          IHC (P)
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # PA5-84832

          100 µL

          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Ultra Violet™ 395, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Ultra Violet™ 395, eBioscience™
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 363-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Violet™ 480, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Violet™ 480, eBioscience™
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 414-0289-42
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Violet™ 650, eBioscience™
          Invitrogen
          CD28 Monoclonal Antibody (CD28.2), Brilliant Violet™ 650, eBioscience™
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 416-0289-42
          Proteintech
          CD28 Monoclonal Antibody (CD28.2)
          Proteintech
          CD28 Monoclonal Antibody (CD28.2)
          1
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # 65099-1-IG

          100 µg

          Invitrogen
          CD28 Monoclonal Antibody (10F3), PE
          Invitrogen
          CD28 Monoclonal Antibody (10F3), PE
          Target
          Human
          Details
          Mouse Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # CD2804

          500 µL

          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (HL1589)
          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (HL1589)
          4
          Target
          Human
          Details
          Rabbit Recombinant Monoclonal
          Application
          WB IHC (P) ICC/IF
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-47104

          100 µL

          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (RM404)
          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (RM404)
          2
          Target
          Human
          Details
          Rabbit Recombinant Monoclonal
          Application
          WB IHC (P)
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-36070

          100 µL

          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (007), PerCP
          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (007), PerCP
          1
          Target
          Human
          Details
          Rabbit Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-46737

          100 Tests

          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (007), FITC
          Invitrogen
          CD28 Recombinant Rabbit Monoclonal Antibody (007), FITC
          1
          Target
          Human
          Details
          Rabbit Recombinant Monoclonal
          Application
          Flow
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-46738

          100 Tests

          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (1C6)
          Invitrogen
          CD28 Recombinant Mouse Monoclonal Antibody (1C6)
          1
          Target
          Dog
          Details
          Mouse Recombinant Monoclonal
          Application
          Flow ELISA Functional IA
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-47974

          200 µg

          Invitrogen
          CD28 Chimeric Recombinant Rabbit Monoclonal Antibody (15E8)
          Invitrogen
          CD28 Chimeric Recombinant Rabbit Monoclonal Antibody (15E8)
          1
          Target
          Human
          Details
          Rabbit Recombinant Monoclonal
          Application
          ELISA Functional
          Price
          Special offer
          Online exclusive
          Online offer:
          Cat # MA5-51761

          200 µg

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          Host server : magellan-search-67c77f6dc7-n6nf2:80/100.66.135.186:80.
          git-commit: 545e792480003146e539d624bd2a21b51d198228
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.31.0-2025.06.23-1.0