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Ultra-LEAF™ Purified anti-human CD19 Antibody

Pricing & Availability
Clone
HIB19 (See other available formats)
Regulatory Status
RUO
Workshop
V CD19.11
Other Names
B4
Isotype
Mouse IgG1, κ
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Product Citations
publications
HIB19_LEAF_061807
Human peripheral blood lymphocytes stained with Ultra-LEAF™ purified HIB19, followed by anti-mouse IgGs FITC
  • HIB19_LEAF_061807
    Human peripheral blood lymphocytes stained with Ultra-LEAF™ purified HIB19, followed by anti-mouse IgGs FITC
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302267 100 µg $237
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302268 1 mg $688
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Description

CD19 is a 95 kD type I transmembrane glycoprotein also known as B4. It is a member of the immunoglobulin superfamily expressed on B-cells (from pro-B to blastoid B cells, absent on plasma cells) and follicular dendritic cells. CD19 is involved in B cell development, activation, and differentiation. CD19 forms a complex with CD21 (CR2) and CD81 (TAPA-1), and functions as a BCR co-receptor.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Human
Reported Reactivity
Chimpanzee
Antibody Type
Monoclonal
Host Species
Mouse
Formulation
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level
Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation
The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration
The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application

FC - Quality tested
CyTOF® - Verified
Block, IHC - Reported in the literature, not verified in house
Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 2.0 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

Additional reported applications (for the relevant formats) include: immunohistochemical staining of acetone-fixed frozen tissue sections8 and blocking of B cell proliferation. Clone HIB19 is not recommended for formalin-fixed paraffin-embedded sections. The Ultra-LEAF™ purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 302267 & 302268).

 

Clone HIB19 partially blocks anti-human CD19 clones 4G7 and SJ25C1 staining based on in-house testing

Application References

(PubMed link indicates BioLegend citation)
  1. Schlossman S, et al. 1995. Leucocyte Typing V. Oxford University Press. New York.
  2. Knapp W, et al. 1989. Leucocyte Typing IV. Oxford University Press. New York.
  3. Bradbury L, et al. 1993. J. Immunol. 151:2915.
  4. Joseph A, et al. 2010. J. Virol. 84:6645. PubMed
  5. Wang X, et al. 2010. Haematologica. 95:884. (FC) PubMed
  6. Walker JD, et al. 2009. J. Immunol. 182:1548. (Block) PubMed
  7. Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
  8. Hansen A, et al. 2002. Arthritis Rheum. 46:2160. (IHC)
  9. Stoeckius M, et al. 2017. Nat. Methods. 14:865. (PG)
  10. Peterson VM, et al. 2017. Nat. Biotechnol. 35:936. (PG)
RRID
AB_2832580 (BioLegend Cat. No. 302267)
AB_2832580 (BioLegend Cat. No. 302268)

Antigen Details

Structure
Ig superfamily, type I transmembrane glycoprotein, 95 kD
Distribution

B lineage (except plasma cells), follicular dendritic cells

Function
B cell activation and differentiation
Ligand/Receptor
Forms complex with CD21 (CR2) and CD81 (TAPA-1), BCR coreceptor
Cell Type
B cells, Dendritic cells
Biology Area
Costimulatory Molecules, Immunology
Molecular Family
CD Molecules
Antigen References

1. Tedder T, et al. 1994. Immunol. Today 15:437.
2. Bradbury L, et al. 1993. J. Immunol. 151:2915.

Gene ID
930 View all products for this Gene ID
UniProt
View information about CD19 on UniProt.org

Related FAQs

Do you guarantee that your antibodies are totally pathogen free?

BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.

Does BioLegend test each Ultra-LEAF™ antibody by functional assay?

No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.

Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?

No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.

Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?

We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.

Other Formats

View All CD19 Reagents Request Custom Conjugation
Description Clone Applications
APC anti-human CD19 HIB19 FC
Biotin anti-human CD19 HIB19 FC
FITC anti-human CD19 HIB19 FC
PE anti-human CD19 HIB19 FC
PE/Cyanine5 anti-human CD19 HIB19 FC
Purified anti-human CD19 HIB19 FC,CyTOF®,IHC-F
APC/Cyanine7 anti-human CD19 HIB19 FC
PE/Cyanine7 anti-human CD19 HIB19 FC
Alexa Fluor® 488 anti-human CD19 HIB19 FC,ICC
Alexa Fluor® 647 anti-human CD19 HIB19 FC,IHC-F
Pacific Blue™ anti-human CD19 HIB19 FC
Alexa Fluor® 700 anti-human CD19 HIB19 FC
PerCP anti-human CD19 HIB19 FC
PerCP/Cyanine5.5 anti-human CD19 HIB19 FC
Brilliant Violet 421™ anti-human CD19 HIB19 FC,ICC,IHC-F
Brilliant Violet 570™ anti-human CD19 HIB19 FC
Brilliant Violet 650™ anti-human CD19 HIB19 FC
Brilliant Violet 785™ anti-human CD19 HIB19 FC
Brilliant Violet 510™ anti-human CD19 HIB19 FC
Brilliant Violet 605™ anti-human CD19 HIB19 FC
Brilliant Violet 711™ anti-human CD19 HIB19 FC
Purified anti-human CD19 (Maxpar® Ready) HIB19 FC,CyTOF®
Alexa Fluor® 594 anti-human CD19 HIB19 ICC,IHC-F
PE/Dazzle™ 594 anti-human CD19 HIB19 FC
PE anti-human CD19 HIB19 FC
APC/Fire™ 750 anti-human CD19 HIB19 FC
Pacific Blue™ anti-human CD19 HIB19 FC
APC anti-human CD19 HIB19 FC
PE/Cyanine7 anti-human CD19 HIB19 FC
TotalSeq™-A0050 anti-human CD19 HIB19 PG
Brilliant Violet 750™ anti-human CD19 HIB19 FC
TotalSeq™-B0050 anti-human CD19 HIB19 PG
TotalSeq™-C0050 anti-human CD19 HIB19 PG
PerCP/Cyanine5.5 anti-human CD19 HIB19 FC
Spark NIR™ 685 anti-human CD19 HIB19 FC
Ultra-LEAF™ Purified anti-human CD19 HIB19 FC,CyTOF®,Block,IHC
APC/Fire™ 810 anti-human CD19 HIB19 FC
PE/Fire™ 640 anti-human CD19 HIB19 FC
PE/Fire™ 700 anti-human CD19 HIB19 FC
TotalSeq™-D0050 anti-human CD19 HIB19 PG
Spark YG™ 593 anti-human CD19 HIB19 FC
GMP Pacific Blue™ anti-human CD19 HIB19 FC
Spark Violet™ 423 anti-human CD19 HIB19 FC
GMP PE anti-human CD19 HIB19 FC
GMP APC anti-human CD19 HIB19 FC
KIRAVIA Blue 520™ anti-human CD19 HIB19 FC
GMP PerCP/Cyanine5.5 anti-human CD19 HIB19 FC
GMP PE/Cyanine7 anti-human CD19 HIB19 FC
Spark Violet™ 500 anti-human CD19 HIB19 FC
PE/Fire™ 810 anti-human CD19 HIB19 FC
Spark Violet™ 423 anti-human CD19 HIB19 FC
Spark UV™ 387 anti-human CD19 HIB19 FC
APC/Fire™ 750 anti-human CD19 HIB19 FC
PE/Cyanine5 anti-human CD19 HIB19 FC
Alexa Fluor® 660 anti-human CD19 HIB19 FC
PerCP/Fire™ 806 anti-human CD19 HIB19 FC
PerCP/Fire™ 780 anti-human CD19 HIB19 FC
Spark PLUS UV395™ anti-human CD19 HIB19 FC
Spark Red™ 718 anti-human CD19 HIB19 FC
FITC anti-human CD19 HIB19 FC
Go To Top Version: 1    Revision Date: 01/06/2020

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

BioLegend, the BioLegend logo, and all other trademarks are property of BioLegend, Inc. or their respective owners, and all rights are reserved.

 

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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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