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ZRB1207

Sigma-Aldrich

Anti-CD19 Antibody, clone 3E7 ZooMAb® Rabbit Monoclonal

enhanced validation
greener alternative

recombinant, expressed in HEK 293 cells

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About This Item

Code UNSPSC :
12352203

Source biologique

rabbit

Niveau de qualité

Produit recombinant

expressed in HEK 293 cells

Conjugué

unconjugated

Forme d'anticorps

purified antibody

Type de produit anticorps

primary antibodies

Clone

3E7, recombinant monoclonal

Description

recombinant, expressed in HEK 293 cells

Gamme de produits

ZooMAb® learn more

Forme

lyophilized

Poids mol.

calculated mol wt 61.13 kDa
observed mol wt ~80 kDa

Produit purifié par

using Protein A

Espèces réactives

human

Conditionnement

antibody small pack of 25 μL

Caractéristiques du produit alternatif plus écologique

Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

Validation améliorée

recombinant expression
Learn more about Antibody Enhanced Validation

Technique(s)

flow cytometry: suitable
immunocytochemistry: suitable
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
western blot: suitable

Isotype

IgG

Séquence de l'épitope

N-terminus

Numéro d'accès Protein ID

Numéro d'accès UniProt

Autre catégorie plus écologique

Conditions d'expédition

ambient

Température de stockage

2-8°C

Modification post-traductionnelle de la cible

unmodified

Description générale

We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information.
ZooMAb® antibodies represent an entirely new generation of recombinant monoclonal antibodies.Each ZooMAb® antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb® antibodies are reliably available and ready to ship when you need them.

Spécificité

Clone 3E7 is a ZooMAb® Rabbit recombinant monoclonal antibody that specifically detects CD19. It targets an epitope within 23 amino acids from the N-terminal, extracellular domain.

Immunogène

KLH-conjugated linear peptide corresponding to 23 amino acids from the N-terminal region of human CD19.

Application

Quality Control Testing

Evaluated by Western Blotting in Daudi cell lysate.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected CD19 in Daudi cell lysate.

Tested applications

Flow Cytometry Analysis: 1 μg from a representative lot detected CD19 in one million Human peripheral blood mononuclear cells (PBMC).

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected CD19 in Raji cells.

Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected CD19 in human tonsil and human appendix tissue sections.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user
Anti-CD19, clone 3E7 ZooMAb®, Cat. No. ZRB1207,is a recombinant Rabbit monoclonal antibody that specifically targets CD19 and is tested for use in Flow Cytometry, Immunocytochemistry, Immunohistochemistry (Paraffin), and Western Blotting.

Description de la cible

B-lymphocyte antigen CD19 (UniProt: P15391; also known as B-lymphocyte surface antigen B4, Differentiation antigen CD19, T-cell surface antigen Leu-12, CD19) is encoded by the CD19 gene (Gene ID: 930) in human. CD19 is a single-pass type I membrane glycoprotein that is synthesized with a signal peptide (aa 1-19), which are subsequently cleaved off to generate the mature form that contains an extracellular domain (aa 20-291), a transmembrane domain (aa 292-313), and a cytoplasmic domain (aa 314-556). It also contains two Ig-like C2-type domains (aa 20-113 and 176-277). CD19 expression has been reported in B cells in blood and lymph nodes. It is part of a complex that is composed of CD19, CD21, CD81, and CD225 in the membrane of mature B-cells. It interacts directly with CD81 via its second extracellular domain early during biosynthesis in the ER/pre-Golgi compartments and is essential for trafficking and compartmentalization of CD19 receptor on the cell surface of activated B cells. It functions as a coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes and is reported to decrease the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens. Following B cell activation, CD19 is phosphorylated on tyrosine residues in a sequential order by Lyn. Phosphorylation of Tyr-531 is rapid, followed by phosphorylation at Tyr-409. Phosphorylation of Tyr-500 appears to be slow and transient. CD19 is shown to be essential for normal B cell differentiation and proliferation in response to antigen challenges. It also activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca2+ stores. This ZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Sato, A., et al. (1997). J. Immunol. 159(7); 3278-3287; Roifman, CM., and Ke, S. (1992). Biochem. Biophys. Res. Commun. 194(1); 222-225; Carter, RH., and Fearon, DT (1992). Science. 256(5053); 105-107).

Forme physique

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. The PBS/trehalose components in the ZooMAb® formulation can have the appearance of a semi-solid (bead like gel) after lyophilization. This is a normal phenomenon. Please follow the recommended reconstitution procedure in the data sheet to dissolve the semi-solid, bead-like, gel-appearing material. The resulting antibody solution is completely stable and functional as proven by full functional testing. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.

Reconstitution

300 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Stockage et stabilité

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.

Informations légales

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Clause de non-responsabilité

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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