| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Tyrosine-protein kinase Blk; B lymphocyte kinase; p55-Blk; BLK |
| Conjugate | |
| Formulation | |
| Host | |
| Immunogen | Synthetic phosphopeptide derived from human BLK around the phosphorylation site of Tyrosine389. |
| Molecular Weight | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage |
Product Overview
BLK (phospho-Y389) polyclonal antibody detects endogenous levels of BLK protein only when phosphorylated at Tyr389 .
Blk is a Src family protein tyrosine kinase expressed in all stages of B cell development. Activation of B cells by various ligands is accompanied by activation of Blk. It has been suggested that Blk is involved in the control of B cell differentiation and proliferation. Blk transcripts have also been detected in human thymocytes, but not in mature T cells, implicating that Blk may play an important role in thymopoiesis. Blk function may be redundant, however, as mice that do not express Blk are not impaired with respect to B cell development and immune response.
Validated Applications
| Application | Recommended Dilution |
|---|---|
| Western Blot (WB) | 1:500~1:1000 |
Product Specifications
| Clonality | Polyclonal |
|---|---|
| Host Species | Rabbit |
| Isotype | IgG |
| Species Reactivity | Human, Mouse, Rat |
| Conjugate | Unconjugated |
| Purification | The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen |
| Formulation | Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 |
| Molecular Weight | ~ 57 kDa |
| Modification | Phosphorylated |
| UniProt / Swiss-Prot | P51451 |
| Storage | Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. |
Immunogen / Antigen
Synthetic phosphopeptide derived from human BLK around the phosphorylation site of Tyrosine389.
Safety & Handling
For Research Use Only (RUO). Not for diagnostic or therapeutic use. Handle as a potential biohazard in accordance with good laboratory practices.
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This antibody has been validated for WB. Always refer to the product datasheet for recommended dilution ranges and appropriate positive control samples for each application type.
Validated reactivity has been confirmed for Human, Mouse, Rat. Cross-reactivity with additional species may exist based on sequence homology but has not been confirmed by the manufacturer. For unlisted species, we recommend running a preliminary validation experiment.
This antibody was raised in Rabbit. For indirect detection (WB, IHC, IF), select an anti-Rabbit secondary antibody that matches the isotype. For direct detection, check the variant selector for conjugated formats. Confirm secondary antibody compatibility before ordering.
Synthetic phosphopeptide derived from human BLK around the phosphorylation site of Tyrosine389.
Please refer to the storage conditions on the product label and datasheet. As a general best practice: upon receipt, aliquot into single-use volumes to minimize freeze-thaw cycling, which can progressively reduce antibody performance and lead to aggregation.
Validated reactivity covers Human, Mouse, Rat samples. Performance can vary across different cell lines and tissue types depending on target antigen expression levels and epitope accessibility. We recommend verifying target expression in your specific model system using a known positive control before proceeding to experimental samples.
BioHippo offers customization and value-added services for qualified research programs:
- Bulk Pricing: Volume discounts available for orders of 5 or more units. Request a quote through the Contact Us page.
- Custom Conjugation: Select antibody products are available for custom conjugation to fluorophores, biotin, HRP, or other detection labels upon request. Minimum quantities apply.
- Custom Formats: Lyophilized or concentrated formats may be available for select products. Inquire before ordering.
- Technical Support: Our scientific team is available to assist with application optimization, protocol troubleshooting, and experimental design.
For customization inquiries, please use the Contact Us page or reach out to our support team directly.
