Part:BBa_K5302000
VEGFR1D2
VEGFR1D2: VEGF binds to two tyrosine kinase receptors, VEGF receptor 1 (VEGFR1/Flt-1) and receptor 2 (VEGFR2/KDR), which are localized on the cell surface of various cell types. The receptors are organized in two intracellular kinase domains, a short transmembrane region and an extracellular portion constituted of seven immunoglobulin-like domains. The binding of VEGF to the extracellular domain induces receptor dimerization, transphosphorylation of the kinase domains, and activation of the intracellular signaling. Deletion studies have shown that the ligand binding function resides within the first three domains of VEGFR14 and in domains 2 and 3 of VEGFR2. Deletion of the second extracellular domain of VEGFR1 (VEGFR1D2) completely abolishes the binding to VEGF, whereas VEGFR1D2 binds VEGF with an affinity that is only 60 times lower than the entire extracellular portion of the receptor. The equilibrium constant for the binding of VEGF to one VEGFR1D2 molecule was determined by surface plasmon resonance. The obtained value, 2.9 ± 0.2 nM, is consistent with the constant reported for the binding of VEGF to monomeric VEGFR1D2. We used pBBR plasmid as a backbone and transfered VEGFR1D2 into Escherichia coli Nissle 1917, and finally succeeded in VEGFR1D2-expressing.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal AgeI site found at 7
- 1000COMPATIBLE WITH RFC[1000]
| biology | Escherichia coli Nissle 1917 |