研究方向
1. 基本特性
- 基因定位:染色体16q21(MMP15基因)
-
蛋白结构:
- 前体蛋白:含信号肽、前肽域、催化域(Zn²⁺结合位点)、跨膜域
- 活性形式:通过弗林蛋白酶切割激活,成为膜锚定蛋白酶(62-68 kDa)
- 别称:MT2-MMP、SMCP-2
2. 功能与调控机制
-
核心功能:
- 细胞外基质重塑:降解IV型胶原、明胶、纤连蛋白
- 肿瘤侵袭转移:促进癌细胞突破基底膜(如乳腺癌、胃癌)
- 血管生成:通过释放VEGF激活内皮细胞迁移
-
激活途径:
- 依赖TIMP-2/MT1-MMP复合物激活pro-MMP2
- TGF-β信号上调其表达
3. 疾病关联与临床应用
-
癌症:
- 生物标志物:高表达与结直肠癌肝转移、非小细胞肺癌预后差相关
- 治疗靶点:小分子抑制剂(如ARP-100)处于临床前研究
- 纤维化疾病:参与肺/肝纤维化中的胶原沉积
-
检测方法:
- IHC(组织样本)
- ELISA(血清可溶性MT2-MMP)
4. 研究工具
- 抗体:抗人MMP-15(克隆130516,R&D Systems)
- 动物模型:Mmp15基因敲除小鼠(血管发育异常)
生物活性
Measured by its ability to cleave a fluorogenic peptide substrate Mca-KPLGL-Dpa-AR-NH2. The specific activity is >200 pmol/min/μg, as measured underthe described conditions.
Swiss Prot:
P51511
种属:
Human
表达宿主:
293F
表达区间:
Glu47-
Pro565(Arg128Pro,Arg129Gly)
实际分子量:
60-65 kDa
标签:
C-5*His tag
纯度:
>90% by SDS-PAGE.
内毒素:
<0.1EU/ug of the protein by LAL method.
制剂:
Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation.
描述:
Recombinant Human Human
MMP-15/MT2-MMP Protein is produced by 293F expression system. The target protein is expressed with sequence (Glu47-
Pro565(Arg128Pro,Arg129Gly)) of Human Human
MMP-15/MT2-MMP (Accession P51511) fused with a C-5*His tag.
储存:
Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
未开盖的干粉蛋白在 -20°C至-80°C可保存12个月;
复溶之后,蛋白溶液在-20°C及以下可保存3个月,在2-8℃可保存1周。
复溶:
Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.
收到重组蛋白产品之后请检查蛋白冻干粉末是否贴于瓶底,如果粉末浮起,开盖之前请先低温离心。将蛋白用说明书中指定的缓冲液复溶至0.1-0.5 mg/mL(请注意蛋白复溶浓度不能低于0.1 mg/mL),室温平衡5-10 min保证充分溶解,复溶过程中请不要剧烈涡旋及吹打蛋白溶液。如需长期储存,建议复溶时添加载体蛋白或者稳定剂(如0.1% BSA, 5% HSA, 10% FBS 或者 5% 海藻糖),同时将复溶后的蛋白溶液按照需求进行分装,储存于-20°C至-80°C,随取随用,避免反复冻融。