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Key Documents

ABF1207-AF488

Sigma-Aldrich

Anti-phospho-Syk (Tyr323) Antibody, Alexa Fluor 488 Conjugate

from rabbit, ALEXA FLUOR 488

Synonym(e):

Tyrosine-protein kinase Syk, p72-Syk, p72Syk, Spleen tyrosine kinase

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About This Item

UNSPSC-Code:
12352203
eCl@ss:
32160702

Biologische Quelle

rabbit

Qualitätsniveau

Konjugat

ALEXA FLUOR 488

Antikörperform

affinity isolated antibody

Antikörper-Produkttyp

primary antibodies

Klon

polyclonal

Speziesreaktivität

human

Methode(n)

immunocytochemistry: suitable

NCBI-Hinterlegungsnummer

UniProt-Hinterlegungsnummer

Versandbedingung

wet ice

Posttranslationale Modifikation Target

phosphorylation (pTyr323)

Allgemeine Beschreibung

Tyrosine-protein kinase Syk (EC 2.7.10.2; UniProt P43405; also known as p72-Syk, p72Syk, Spleen tyrosine kinase) is encoded by the SYK gene (Gene ID 6850) in human. Spleen tyrosine kinase (Syk) is a non-receptor tyrosine kinase highly expressed by haematopoietic cells. Syk plays a crucial role not only in adaptive immune receptor signalling, but also in cellular adhesion, innate immune recognition, osteoclast maturation, platelet activation and vascular development. Syk adopts an autoinhibited conformation in its inactive state and is activated upon binding immunoreceptor tyrosine-based activation motifs (ITAMs) and phosphorylation of tyrosine residues in the two linker regions (a.a. 108-160 and 260-370) between SH1 (a.a. 15-107) and SH2 (a.a. 168-259), and between SH2 and the kinase domain (a.a. 371-631). Initial ITAM binding triggers rapid activation of Syk, whereas subsequent phosphorylation leads to prolonged activation. In additon, Syk can phosphorylate ITAMs and autophosphorylate its own link region tyrosines, providing a positive feedback loop following initial ITAM-mediated Syk activation. Syk also mediates signalling of receptors that do not contain an ITAM, including integrins and C-type lectins, via interaction with ITAM-containing adaptors, such as DAP12 (TYROBP) and the FcR gamma-chain (FcRgamma).

Spezifität

Target phosphotyrosine residue coresponds to pTyr323 of human Syk spliced isoform 1 and pTyr300 of human Syk spliced isoform 2. Sequence surrounding the target tyrosine is not well conserved in mouse and rat Syk.

Immunogen

Epitope: domain of:
KLH-conjugated linear peptide corresponding to a sequence surrounding phosphorylated Tyr323 of human Syk.

Anwendung

Research Category
Zelluläre Signaltransduktion
Detect Syk phosphorylated on tyrosine 323 using this rabbit polyclonal Anti-phospho-Syk (Tyr323), Alexa Fluor 488 Conjugate, Cat. No. ABF1207-AF488, validated for use in Immunocytochemistry.
The unconjugated antibody (Cat. No. ABF1207) is also available for Western blotting application.

Qualität

Evaluated by Immunocytochemistry in Jurkat cells.

Immunocytochemistry Analysis: A 1:100 dilution of this antibody detected Syk Tyr323 phosphorylation induction in hydrogen peroxide-treated Jurkat cells.

Zielbeschreibung

~72/69 kDa observed. 72.07/69.51 kDa (human Syk isoform 1/2) calculated.

Physikalische Form

Affinity purified.
Purified rabbit polyclonal antibody Alexa Fluor 488 conjugate in PBS with 1.5% BSA and 0.05% sodium azide.

Lagerung und Haltbarkeit

Stable for 1 year at 2-8°C from date of receipt.

Sonstige Hinweise

Concentration: Please refer to lot specific datasheet.

Rechtliche Hinweise

ALEXA FLUOR is a trademark of Life Technologies

Haftungsausschluss

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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Lagerklassenschlüssel

12 - Non Combustible Liquids

WGK

WGK 2


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