This antibody recognizes VASP only, when Ser239 is phosphorylated, a site preferred by cGMP-dependent protein kinase (PKG) but also used by cAMP-dependent protein kinase (PKA). This antibody does not crossreact with the non-phosphorylated form of VASP nor with unrelated serine-phosphorylated proteins. Therefore, The antibody is able to monitor the phosphorylation state of VASP Serine239 as well as PKA activity.
Characteristics
Synonyms: Vasodilator-stimulated phosphoprotein
Purification
Subsequent Thiophilic Adsorption and Size Exclusion Chromatography
Immunogen
Synthetic phosphopeptide conjugated to KLHEpitope: Phosphoserine 239 RKVpSKQE
VASP
Reactivity: Human
WB, PLA
Host: Rabbit
Polyclonal
unconjugated
Application Notes
Flow Cytometry. Immunocytochemistry: 1-10 μg/mL (may tolerate 0.5 % formaldehyde fixation). Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
0.5 mg/mL
Buffer
2 x PBS containing 0.09 % Sodium Azide / PEG and Sucrose.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
Storage Comment
Aliquote and freeze (in liquid nitrogen at -20 °C to -80 °C). Thaw aliquots at 37 °C. Thawed aliquots may be stored at 2-8 °C up to 3 months. Avoid repeated freezing and thawing. Shelf life: one year from despatch.
VASP (vasodilator stimulated phosphoprotein) plays an important role in ANF / NO / cGMP Protein kinase and cAMP / cAMP Protein kinase signalling pathways. VASP is expressed in almost all human and animal cell lines, particularly high concentrations are found in thrombocytes, vascular smooth muscle cells and fibroblasts. In cultured cells VASP is associated with focal contacts, cell-cell-contacts, microfilaments and dynamic membrane regions such as the leading edge. In vitro binding data show that VASP binds to profilin, zyxin, vinculin, and the Listeria spp. surface protein ActA. Functional evidence indicates that VASP is a crucial factor involved in the enhancement of actin filament formatSynonyms: Vasodilator-stimulated phosphoprotein