Purified recombinant Human PPIH protein Expression System: E.coli Bioactivity: Specific activity is > 40 nmoles/min/µg, and is defined as the amount of enzyme that cleaves 1uM of suc-AAFP-pNA per minute at 1 °C in Tris-HCl pH 8.0 using chymotrypsin. Molecular weight on SDS-PAGE will appear higher.
纯度
> 95 % pure
内毒素水平
< 1.0 EU per µg of protein (determined by LAL method)
PPIH protein has been used in SDS PAGE and may be suitable for use in other assays to be determined by the end user.
实验流程
Prepare assay buffer in a suitable container and pre-chill on ice before use: The final concentrations are 35 mM Tris, pH 8.0, 1 µM suc-AAFP-pNA). 2. Add recombinant Cyclophilin H protein with various concentrations (1 µg, 1 µg, 1 µg) in assay buffer. 3. Mix by inversion and equilibrate to 1 °C and monitor the A410 nm until the value is constant using a spectrophotometer. 4. Add pre-chilled chymotrypsin to 12.5 µM and mix immediately. 5. Record the increase in A410 nm for 20 minutes
限制
仅限研究用
状态
Liquid
浓度
1 mg/mL
缓冲液
Supplied as a liquid in PBS, pH 7.4, containing 10 % glycerol.
注意事项
Avoid repeated freeze/thaw cycles.
储存条件
RT/-20 °C
储存方法
Store at 4 °C for short term storage (1/2 weeks). Aliquot and store at -20 °C or - 70 °C for long term storage.
抗原
PPIH
(Peptidylprolyl Isomerase H (Cyclophilin H) (PPIH))
Cyclophilin H (also known as peptidylpropyl isomerase H, PPIH) is a member of peptidyl-propyl cis-trans isomerase (PPIase) family, which catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and accelerates the folding of proteins. The cyclophilin H is a specific component of the human U4/U6 small nuclear ribonucleoprotein particle involved in the nuclear splicing of pre-mRNA. It stably associates with the U4/U6-60kD and -90kD proteins, the human orthologues of the Saccharomyces cerevisiae Prp4 and Prp3 splicing factors. Recombinant human cyclophilin H was expressed in E. coli and purified by conventional chromatography techniques. Alternative Names: Peptidylprolyl isomerase H CypH protein, EC 5.2.1.8 protein, PPIH protein, UsnRNP associated cyclophilin SnuCyp20 protein, Peptidylprolyl isomerase H protein, Cyclophilin H protein, , CYPH protein, MGC5016 protein, CYP20 protein, USACYP protein, PPIase H protein, Rotamase H protein, SnuCyp-20 protein, SnuCyp-20 protein, Small nuclear ribonucleoprotein particle-specific cyclophilin H protein