Anti-CTLA4 Antibody Picoband®

About this product

Boster Bio Anti-CTLA4 Antibody Picoband® catalog # A00020-1. Tested in ELISA, IHC, WB applications. This antibody reacts with Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

A00020-1

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

CTLA-4 (Cytotoxic T-Lymphocyte Antigen 4), also known as CD152, is a protein receptor that down regulates the immune system. It is a member of the immunoglobulin superfamily, which is expressed on the surface of Helper T cells and transmits an inhibitory signal to T cells. CTLA4 is similar to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 and CD86, also called B7-1 and B7-2 respectively, on antigen-presenting cells. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Blockade of CTLA4 expression in vitro augmented HIV-specific CD4-positive T-cell function.

Synonyms

Cytotoxic T-lymphocyte protein 4; Cytotoxic T-lymphocyte-associated antigen 4; CTLA-4; CD152; Ctla4; Cd152

Gene Name

Ctla4

Gene ID

12477

UniProt

P09793

Host

Rabbit

Reactivity

Mouse, Rat

Cross Reactivity

No cross-reactivity with other proteins.

Immunogen

E. coli-derived mouse CTLA4 recombinant protein (Position: E36-D161) . Mouse CTLA4 shares 67.5% amino acid (aa) sequence identity with human CTLA4.

Clonality

Polyclonal

Tissue Specificity

Widely expressed with highest levels in lymphoid tissues. .

Applications

ELISA, IHC, WB

Field of Research

T Cells, T Lymphocytic Lineage

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Function

Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28 (By similarity) . .

References & Citations

1. Dariavach P, Mattéi MG, Golstein P, Lefranc MP (December 1988) . Human Ig superfamily CTLA-4 gene: chromosomal localization and identity of protein sequence between murine and human CTLA-4 cytoplasmic domains. Eur. J. Immunol. 18 (12) : 1901–5. 2. Magistrelli G, Jeannin P, Herbault N, Benoit De Coignac A, Gauchat JF, Bonnefoy JY, Delneste Y (November 1999) . A soluble form of CTLA-4 generated by alternative splicing is expressed by nonstimulated human T cells.Eur. J. Immunol. 29 (11) : 3596–602. 3. Waterhouse P, Penninger JM, Timms E, Wakeham A, Shahinian A, Lee KP, Thompson CB, Griesser H, Mak TW (November 1995) . Lymphoproliferative disorders with early lethality in mice deficient in Ctla-4. Science 270 (5238) : 985–8.

Storage Conditions

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Calculated Molecular Weight

24993 MW

Observed Molecular Weight

25 kDa

Specificity

No cross reactivity with other proteins.

Gene Name Synonym

Cytotoxic T-lymphocyte protein 4

Subcellular Location

Cell membrane ; Single-pass type I membrane protein .

Protein Name

Receptor tyrosine-protein kinase erbB-2

Isotype

Rabbit IgG

Contents

Each vial contains 4mg Trehalose, 0.9mg NaCl and 0.2mg Na2HPO4.