Protein Function: Integrins alpha-4/beta-1 (VLA-4) and alpha-4/beta-7 are receptors for fibronectin. They recognize one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. They are also receptors for VCAM1. Integrin alpha-4/beta-1 recognizes the sequence Q-I-D-S in VCAM1. Integrin alpha-4/beta-7 is also a receptor for MADCAM1. It recognizes the sequence L-D-T in MADCAM1. On activated endothelial cells integrin VLA-4 triggers homotypic aggregation for most VLA-4-positive leukocyte cell lines. It may also participate in cytolytic T-cell interactions with target cells. ITGA4 binds to fractalkine (CX3CL1) and may act as its coreceptor in CX3CR1-dependent fractalkine signaling. ITGA4 binds to PLA2G2A via a site (site 2) which is distinct from the classical ligand-binding site (site 1) and this induces integrin conformational changes and enhanced ligand binding to site 1. Integrin ITGA4 represses PRKCA-mediated L-type voltage-gated channel Ca2+ influx and ROCK-mediated calcium sensitivity in vascular smooth muscle cells via its interaction with SVEP1, thereby inhibiting vasocontraction.
规格
产品名称
Recombinant Human Integrin alpha 4 Protein
别名
重组人Integrin alpha 4蛋白 | 重组人类整合素α4蛋白
英文别名
Antigen CD49D, alpha 4 subunit of VLA 4 receptor | 269C wild type | CD49 antigen like family member D | CD49 antigen-like family member D | CD49d | IA4 | Integrin alpha 4 | Integrin alpha 4 subunit | Integrin alpha IV | Integrin alpha-4 | Integrin alpha-I
95.8 kDa, under reducing conditions; 92.3 kDa, under non-reducing conditions
分子类型
蛋白质
产品线
生物产品
储存与运输
物理形态
冻干(Lyophilized)
储存缓冲液
Lyophilized from 50mM Tris, 150mM NaCl, pH 7.5
复溶
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.5 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
在 -20°C 下可保存 1 年。避免冷冻/解冻循环。
图片
Recombinant Human Integrin alpha 4 Protein (rp181256) - SDS-PAGE 3 μg/lane of Recombinant Human Integrin alpha 4 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 95.8 kDa under reducing conditions and 92.3 kDa under non-reducing conditions.