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HLA-DRB Monoclonal Mouse Antibody (L243)

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Product Attributes

Antibody number

#0458

Antibody reactivity (target)

HLA-DRB

Antibody type

Primary

Host species

Mouse

Clonality

Monoclonal

Clone

L243

Isotype

IgG2a, kappa

Molecular weight

28 kDa (beta chain)

Synonyms

DRB1; HLA class II histocompatibility antigen; DR-1 beta chain; HLA-DR-beta 1; HLA-DRB1; human leucocyte antigen DRB1; Leucocyte antigen DR beta 1 chain; lymphocyte antigen DRB1; major histocompatibility complex; class II; DR beta 1; MHC class II HLA-DR beta 1 chain; MHC class II HLA-DR-beta cell surface glycoprotein

Human gene symbol

HLA-DRB1

Entrez gene ID

3123

SwissProt

P01911

Unigene

534322

Immunogen

Activated human peripheral blood mononuclear cells

Antibody target cellular localization

Plasma membrane

Species reactivity

Baboon, Chimpanzee, Dog, Human, Monkey, Squirrel

Expected antibody applications

ELISA (published for clone), Flow, surface (published for clone), Functional studies (published for clone), IHC (frozen) (published for clone), IP (published for clone)

Antibody application notes

Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody, Immunofluorescence: 0.5-1 ug/mL, Flow Cytometry 0.5-1 ug/million cells/0.1 mL, Optimal dilution for a specific application should be determined by user

Positive control

Ramos, Daudi or HuT78 cells. Tonsil or lymph node

Shipping condition

Room temperature

Storage Conditions

Store at 2 to 8 °C, Protect fluorescent conjugates from light, Note: store BSA-free antibodies at -10 to -35 °C

Shelf life

Guaranteed for at least 24 months from date of receipt when stored as recommended

Regulatory status

For research use only (RUO)

Antibody/conjugate formulation

Conjugates: 0.1 mg/mL in PBS/0.1% BSA/0.05% azide, HRP conjugates: 0.1 mg/mL in PBS/0.05% BSA, Purified: 0.2 mg/mL in PBS/0.05% BSA/0.05% azide, Purified, BSA-free: 1 mg/mL in PBS without azide

Antibody research areas

Cancer, Immunology, MHC antigens

Conjugation
Don’t see what you’re looking for? Contact us for more conjugation options.
Note: Please be advised that primary antibodies with catalog numbers that begin with “BN” will only be offered conjugated to CF®405S, CF®488A, CF®568, CF®594, CF®640R, CF®647, and biotin as of 5/27/2022. However, previously available primary antibody conjugates that are in stock will remain available until inventory is exhausted. Please view the list of available conjugates on the product page. We also recommend our easy-to-use Mix-n-StainTM Antibody Labeling Kits for labeling antibodies with all CF® Dyes. We apologize for the inconvenience.
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Product Description

This MAb reacts with the HLA-DRB1 antigen, a member of MHC class II molecules. It does not cross react with HLA-DP and HLA-DQ. It binds a conformational epitope on HLA-DR, which depends on the correct folding of the α/β heterodimer. This MAb has been reported to block mixed lymphocyte reactions. The L243 antibody recognizes a different epitope than the LN3 monoclonal antibody, and these antibodies do not cross-block binding to each other’s respective epitopes. HLA-DR is a heterodimeric cell surface glycoprotein comprised of a 36kD alpha (heavy) chain and a 28kD beta (light) chain. It is expressed on B-cells, activated T-cells, monocytes/macrophages, dendritic cells and other non-professional APCs. In conjunction with the CD3/TCR complex and CD4 molecules, HLA-DR is critical for efficient peptide presentation to CD4 T cells. It is an excellent histiocytic marker in paraffin sections producing intense staining. True histiocytic neoplasms are similarly positive. HLA-DR antigens also occur on a variety of epithelial cells and their corresponding neoplastic counterparts.

Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

Stock status: Because Biotium offers a large number of antibody and conjugation options, primary antibody conjugates may be made to order. Typical lead times are up to one week for CF® dye and biotin conjugates, and up to 2-3 weeks for fluorescent protein and enzyme conjugates. Please email order@biotium.com to inquire about stock status and lead times before placing your order.

 Catalog number key for antibody number 0458, Anti-HLA-DRB (L243) 

Catalog Number Key for Primary Antibody Conjugates

Antibody # prefixConjugationEx/Em (nm)Laser lineDetection channelDye Features
BNC04CF®405S404/431405DAPI (microscopy), AF405CF®405S Features
BNC88CF®488A490/515488GFP, FITCCF®488A Features
BNC68CF®568562/583532, 561RFP, TRITCCF®568 Features
BNC94CF®594593/614561Texas Red®CF®594 Features
BNC40CF®640R642/662633-640Cy®5CF®640R Features
BNC47CF®647650/665633-640Cy®5CF®647 Features
BNCBBiotinN/AN/AN/A
BNUBPurifiedN/AN/AN/A
BNUMPurified,
BSA-free
N/AN/AN/A
Alexa Fluor, Pacific Blue, Pacific Orange, and Texas Red are trademarks or registered trademarks of Thermo Fisher Scientific; Cy is a registered trademark of Cytiva; IRDye, LI-COR, and Odyssey are registered trademarks of LI-COR Bioscience.

References

Note: References for this clone sold by other suppliers may be listed for expected applications.

  1. Nature (1983) 304: 358-361. (IP, Flow)
  2. J Exp Med (2000) 191 (8): 1395-1412. (functional studies)
  3. J Clin Pathol (1991) 44:102-106. (IHC, frozen)
  4. Int J Cancer (2001) 93: 556-565. (ELISA, Flow, functional studies)
 

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