Abcam, ab20181, Anti-HLA-DR antibody [TAL 1B5]

Size: 20µg / 100µg / 1mg
Anti-HLA-DR antibody [TAL 1B5] (ab20181) is a mouse monoclonal antibody detecting HLA-DR in Western Blot, Flow Cytometry, IHC-P, ICC/IF . Suitable for Human . - Biophysical QC for unrivalled batch-batch consistency - Over 50 publications - Trusted since 2005
Key facts
Host species:Mouse,
Clonality:Monoclonal,
Clone number:TAL 1B5,
Isotype:IgG1,
Light chain type:kappa,
Carrier free:No,
Reacts with:Human,
Applications:WB, Flow Cyt, IHC-P, ICC/IFSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.

Product details:
Anti-HLA-DR antibody [TAL 1B5] (ab20181) was developed by Abcam using patented rabbit monoclonal antibody technology and is validated for use in Flow Cyt, ICC/IF, IHC-P, WB in human samples.
Anti-HLA-DR antibody [TAL 1B5] (ab20181) has been cited over 51 times in peer reviewed journals and is trusted by the scientific community.
Abcams high quality manufacturing and validation processes ensure Anti-HLA-DR antibody [TAL 1B5] (ab20181) has high sensitivity and specificity alongside high lot-to-lot consistency and reproducibility.
Anti-HLA-DR antibody [TAL 1B5] (ab20181) has 6 independent reviews from customers.
Anti-HLA-DR antibody [TAL 1B5] (ab20181) specifically detects HLA-DR (UniProt ID: P01903; Molecular weight: 26kDa) and is sold in 100 ug 1 mg selling sizes.
Conjugation-ready, carrier free format available for antibody clone TAL 1B5 -
ab17648
Antibody clone TAL 1B5 is also available pre-conjugated to a variety of labels for your convenience - Alexa Fluor® 647, Alexa Fluor® 488, Alexa Fluor® 555, FITC (
ab22397
ab39369
ab3956
ab31774
HLA-DR is a major histocompatibility complex (MHC) class II receptor involved in presenting antigens to T cells, playing a crucial role in the immune response to tumors. High HLA-DR expression on tumor-infiltrating lymphocytes is associated with better clinical outcomes in certain cancers.
This product has switched from a hybridoma to recombinant production method on 23 September 2022.
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle