Rabbit Polyclonal Phospho-ZAP70-Y319 antibody (AP0467)


Reactivity: Human,Mouse,Rat
Applications: WB,IHC,IF
Conjugation: Unconjugated
Supplier: ABclonal Inc.

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Rabbit Polyclonal Phospho-ZAP70-Y319 antibody (AP0467)

Supplier: ABclonal Inc.

Recommended applications: WB,IHC,IF

Recommended dilution:

WB 1:500 – 1:2000
IHC 1:50 – 1:200
IF 1:50 – 1:100

Recommended protocols: check protocols

Image descriptions:

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Alternative names:

Check alternative names for the antibody


SRK antibody; STD antibody; TZK antibody; STCD antibody; ZAP-70 antibody;
70 kDa zeta associated protein antibody|Truncated ZAP kinase antibody|Tyrosine protein kinase ZAP70 antibody|Tyrosine-protein kinase ZAP-70 antibody|TZK antibody|ZAP 70 antibody|ZAP70 antibody|ZAP70_HUMAN antibody|Zeta chain associated protein kinase 70kD antibody|Zeta chain associated protein kinase 70kDa antibody|Zeta chain associated protein kinase 70kDa isoform 1 antibody|Zeta chain associated protein kinase 70kDa isoform 2 antibody|Zeta chain TCR associated protein kinase 70kD antibody|Zeta chain TCR associated protein kinase 70kDa antibody|Anti-ZAP70 antibody [YE291] (ab32429)

SCBT cat No: sc-12945|sc-101822|sc-12946|sc-33526|sc-23889|sc-26168|sc-71948|sc-52552|sc-50478|sc-100809|sc-376218|sc-98349|sc-101547|sc-390535|sc-55266|


Rabbit Polyclonal Phospho-ZAP70-Y319 antibody

Catalogue No.



Human, Mouse, Rat


A phospho specific peptide corresponding to residues surrounding Y319 of human ZAP70











Molecular weight



Phospho-ZAP70-Y319 antibody was tube-contained.
Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.


Affinity purification


Store at -20 Celsius degree. Avoid freeze / thaw cycles.

Alternative antibody names

SRK antibody; STD antibody; TZK antibody; STCD antibody; ZAP-70 antibody;

Protein names


Protein function

Tyrosine kinase that plays an essential role in regulation of the adaptive immune response. Regulates motility, adhesion and cytokine expression of mature T-cells, as well as thymocyte development. Contributes also to the development and activation of primary B-lymphocytes. When antigen presenting cells (APC) activate T-cell receptor (TCR), a serie of phosphorylations lead to the recruitment of ZAP70 to the doubly phosphorylated TCR component CD247/CD3Z through ITAM motif at the plasma membrane. This recruitment serves to localization to the stimulated TCR and to relieve its autoinhibited conformation. Release of ZAP70 active conformation is further stabilized by phosphorylation mediated by LCK. Subsequently, ZAP70 phosphorylates at least 2 essential adapter proteins: LAT and LCP2. In turn, a large number of signaling molecules are recruited and ultimately lead to lymphokine production, T-cell proliferation and differentiation. Furthermore, ZAP70 controls cytoskeleton modifications, adhesion and mobility of T-lymphocytes, thus ensuring correct delivery of effectors to the APC. ZAP70 is also required for TCR-CD247/CD3Z internalization and degradation through interaction with the E3 ubiquitin-protein ligase CBL and adapter proteins SLA and SLA2. Thus, ZAP70 regulates both T-cell activation switch on and switch off by modulating TCR expression at the T-cell surface. During thymocyte development, ZAP70 promotes survival and cell-cycle progression of developing thymocytes before positive selection (when cells are still CD4/CD8 double negative). Additionally, ZAP70-dependent signaling pathway may also contribute to primary B-cells formation and activation through B-cell receptor (BCR).

Protein tissue specificity

Expressed in T- and natural killer cells. Also present in early thymocytes and pro/pre B-cells.

Protein sequence and domain

Belongs to the protein kinase superfamily. Tyr protein kinase family. SYK/ZAP-70 subfamily.; Contains 1 protein kinase domain.; Contains 2 SH2 domains. Composed of 2 N-terminal SH2 domains and a C-terminal kinase domain. The tandem SH2 domains bind to the doubly phosphorylated tyrosine-based activation motif (ITAM) of CD247/CD3Z and the non-canonical phosphorylated tyrosine-based activation motif (TAM) of RHOH (By similarity). The interdomain B located between the second SH2 and the kinase domain contains 3 tyrosines (Tyr-292, Tyr-315, Tyr-319) that are phosphorylated following TCR activation. These sites have been implicated in binding to other signaling molecules including CBL or VAV1. Thus, ZAP70 can also function as a scaffold by recruiting additional factors to the stimulated TCR complex.

Protein post-translational modifications

Phosphorylated on tyrosine residues upon T-cell antigen receptor (TCR) stimulation. Phosphorylation of Tyr-315 and Tyr-319 are essential for ZAP70 positive function on T-lymphocyte activation whereas Tyr-292 has a negative regulatory role. Within the C-terminal kinase domain, Tyr-492 and Tyr-493 are phosphorylated after TCR induction, Tyr-492 playing a negative regulatory role and Tyr-493 a positive. Tyr-493 is dephosphorylated by PTN22.

Protein cellular localization

Cytoplasm . Cell membrane ; Peripheral membrane protein . Note=In quiescent T-lymphocytes, it is cytoplasmic. Upon TCR activation, it is recruited at the plasma membrane by interacting with CD247/CD3Z. Colocalizes together with RHOH in the immunological synapse. RHOH is required for its proper localization to the cell membrane and cytoskeleton fractions in the thymocytes (By similarity).


This gene encodes an enzyme belonging to the protein tyrosine kinase family, and it plays a role in T-cell development and lymphocyte activation. This enzyme, which is phosphorylated on tyrosine residues upon T-cell antigen receptor (TCR) stimulation, functions in the initial step of TCR-mediated signal transduction in combination with the Src family kinases, Lck and Fyn. This enzyme is also essential for thymocyte development. Mutations in this gene cause selective T-cell defect, a severe combined immunodeficiency disease characterized by a selective absence of CD8-positive T-cells. Two transcript variants that encode different isoforms have been found for this gene.

Research area

<a href="http://antibodyplus.com/research-areas/">All research areas</a>><a href="http://antibodyplus.com/Kinases-and-Phosphatases/">Kinases and Phosphatases</a>><a href="http://antibodyplus.com/product-tag/ZAP-70/">ZAP-70</a><br><a href="http://antibodyplus.com/product-tag/Kinases-and-Phosphatases/"&gt; (View all antibody categories related to Kinases and Phosphatases)</a>


AntibodyPlus can customize Phospho-ZAP70-Y319 antibody according to your requirement, including bulk product size,etc. Please contact info@antibodyplus.com. AntibodyPlus provides antibody trial sample for your own antibody validation.

Product type

Primary antibody


ABclonal Inc.


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