Anti-Integrin β3, clone 25E11, azide free
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | FC, IP, IC, FUNC | Mouse | Purified | Monoclonal Antibody |
Description:
Anti-Integrin β3, clone 25E11, azide free
Trade Name:
Chemicon (Millipore)
Specificity:
Reacts with human integrin beta3 (GPIIIa, vitronectin receptor beta chain). The protein detectable is a complex of CD41 and CD61. Ligands are fibronectin, fibrinogen, von Willebrand factor, vitronectin and thrombospondin. Residues 237-248 of GPIIIa or CD61 are critical in adhesive protein binding. The monocytoid cell line U937 is highly positive.
(original paper claimed IgG2ak)
(original paper claimed IgG2ak)
Immunogen:
Normal blood mononuclear cells activated by mixed lymphocyte reaction and cultured for 10 days in medium containing IL-2.
Clone:
25E11
Isotype:
IgM
Background Information:
The integrin family of cell adhesion receptors consists of several membrane-associated heterodimers, composed of an alpha and beta subunit that associate in a non-covalent manner. The structure and functional diversity of the integrin family are based upon the pairing abilities of the individual alpha and beta subunits. Key to these molecular interactions between the integrin receptors and their respective ligands is the recognition of the Arg-Gly-Asp (RGD) sequence, known to be present in the extracellular matrix components fibronectin, vitronectin, collagen, fibrinogen, and von Willebrand factor. The involvement of integrins in vascular proliferation, adhesion, and wound repair has been well documented.
Platelet membrane glycoprotein Integrin beta3 or CD61 (GP IIIa) forms a Ca2+-dependent heterodimer complex with GP IIb. The GP IIb-IIIa complex constitutes the fibrinogen and fibronectin receptor on stimulated platelets.
Platelet membrane glycoprotein Integrin beta3 or CD61 (GP IIIa) forms a Ca2+-dependent heterodimer complex with GP IIb. The GP IIb-IIIa complex constitutes the fibrinogen and fibronectin receptor on stimulated platelets.
Species Reactivity:
Human
Application Notes:
Immunoprecipitation
Immunocytochemistry (acetone fixation required).
Flow cytometry
Inhibits platelet aggregation, 10 μg/mL
Optimal working dilutions must be determined by end user.
Immunocytochemistry (acetone fixation required).
Flow cytometry
Inhibits platelet aggregation, 10 μg/mL
Optimal working dilutions must be determined by end user.
Presentation:
In buffer of 0.01M phosphate, 0.15M sodium chloride, pH 7.1, containing no preservatives.
Storage Conditions:
Maintain at 2-8°C.
UniProt Number:
Entrez Gene Number:
Gene Symbol:
- ITGB3
- GP3A
- CD61
- GPIIIa
Alternate Names:
CD61
Usage Statement:
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.
Key Applications:
- Flow Cytometry
- Immunoprecipitation
- Immunocytochemistry
- Affects Function
Entrez Gene Summary:
The ITGB3 protein product is the integrin beta chain beta 3. Integrins are integral cell-surface proteins composed of an alpha chain and a beta chain. A given chain may combine with multiple partners resulting in different integrins. Integrin beta 3 is found along with the alpha IIb chain in platelets. Integrins are known to participate in cell adhesion as well as cell-surface mediated signalling.
UniProt Summary:
FUNCTION: SwissProt: P05106 # Integrin alpha-V/beta-3 is a receptor for cytotactin, fibronectin, laminin, matrix metalloproteinase-2, osteopontin, osteomodulin, prothrombin, thrombospondin, vitronectin and von Willebrand factor. Integrin alpha-IIb/beta-3 is a receptor for fibronectin, fibrinogen, plasminogen, prothrombin, thrombospondin and vitronectin. Integrins alpha-IIb/beta-3 and alpha-V/beta-3 recognize the sequence R-G-D in a wide array of ligands. Integrin alpha-IIb/beta-3 recognizes the sequence H-H-L-G-G-G-A-K-Q-A-G-D-V in fibrinogen gamma chain. Following activation integrin alpha- IIb/beta-3 brings about platelet/platelet interaction through binding of soluble fibrinogen. This step leads to rapid platelet aggregation which physically plugs ruptured endothelial surface. In case of HIV-1 infection, the interaction with extracellular viral Tat protein seems to enhance angiogenesis in Kaposi's sarcoma lesions.
SIZE: 788 amino acids; 87058 Da
SUBUNIT: Heterodimer of an alpha and a beta subunit. Beta-3 associates with either alpha-IIb or alpha-V. Isoform Beta-3C interacts with FLNB. Interacts with HIV-1 Tat.
SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein.
TISSUE SPECIFICITY: Isoform beta-3A and isoform beta-3C are widely expressed. Isoform beta-3A is specifically expressed in osteoblast cells; isoform beta-3C is specifically expressed in prostate and testis.
PTM: Phosphorylated on tyrosine residues in response to thrombin- induced platelet aggregation. Probably involved in outside-in signaling. A peptide (AA 740-762) is capable of binding GRB2 only when both Tyr-773 and Tyr-785 are phosphorylated. SHC binding also occurs when Tyr-785 alone is phosphorylated.
DISEASE: SwissProt: P05106 # Defects in ITGB3 are a cause of Glanzmann thrombasthenia (GT) [MIM:273800]; also known as thrombasthenia of Glanzmann and Naegeli. GT is the most common inherited disease of platelets. Its inheritance is autosomal recessive. It is characterized by mucocutaneous bleeding of mild-to-moderate severity and the inability of this integrin to recognize macromolecular or synthetic peptide ligands. GT has been classified clinically into types I and II. In type I, platelets show absence of the glycoprotein IIb-IIIa complexes at their surface and lack fibrinogen and clot retraction capability. In type II, the platelets express the GPIIb-IIIa complex at reduced levels (5-20% controls), have detectable amounts of fibrinogen, and have low or moderate clot retraction capability. The platelets of GT variants have normal or near normal (60-100%) expression of dysfunctional receptors.
SIMILARITY: SwissProt: P05106 ## Belongs to the integrin beta chain family. & Contains 1 VWFA domain.
SIZE: 788 amino acids; 87058 Da
SUBUNIT: Heterodimer of an alpha and a beta subunit. Beta-3 associates with either alpha-IIb or alpha-V. Isoform Beta-3C interacts with FLNB. Interacts with HIV-1 Tat.
SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein.
TISSUE SPECIFICITY: Isoform beta-3A and isoform beta-3C are widely expressed. Isoform beta-3A is specifically expressed in osteoblast cells; isoform beta-3C is specifically expressed in prostate and testis.
PTM: Phosphorylated on tyrosine residues in response to thrombin- induced platelet aggregation. Probably involved in outside-in signaling. A peptide (AA 740-762) is capable of binding GRB2 only when both Tyr-773 and Tyr-785 are phosphorylated. SHC binding also occurs when Tyr-785 alone is phosphorylated.
DISEASE: SwissProt: P05106 # Defects in ITGB3 are a cause of Glanzmann thrombasthenia (GT) [MIM:273800]; also known as thrombasthenia of Glanzmann and Naegeli. GT is the most common inherited disease of platelets. Its inheritance is autosomal recessive. It is characterized by mucocutaneous bleeding of mild-to-moderate severity and the inability of this integrin to recognize macromolecular or synthetic peptide ligands. GT has been classified clinically into types I and II. In type I, platelets show absence of the glycoprotein IIb-IIIa complexes at their surface and lack fibrinogen and clot retraction capability. In type II, the platelets express the GPIIb-IIIa complex at reduced levels (5-20% controls), have detectable amounts of fibrinogen, and have low or moderate clot retraction capability. The platelets of GT variants have normal or near normal (60-100%) expression of dysfunctional receptors.
SIMILARITY: SwissProt: P05106 ## Belongs to the integrin beta chain family. & Contains 1 VWFA domain.
Brand Family:
Chemicon
Product Name:
Anti-Integrin β3, clone 25E11, azide free
Concentration:
1 mg/mL
Antibody Type:
Monoclonal Antibody
Qty/Pk:
100 µg
Format:
Purified
Host:
Mouse