The SUMO protease (SUMOP) releases target proteins from TriAltus’s Im7 resin. SUMOP recognizes SUMO tertiary structure – instead of a specific amino acid sequence – to cleave and release the target protein from the Im7-bound CL7 tag. We ship this protease on dry ice in buffer (20 mM Tris (pH 8.0), 0.5 M NaCl, 1 mM EDTA).
PURITY | >98% (SDS gel analysis)
ENZYME SOURCE | Yeast protein overexpressed in E. coli with histidine (His) tag
CLEAVAGE SITE | SUMOP cleaves after the C-terminal glycine at the end of the SUMO sequence. If the target protein is fused downstream of the SUMO C-terminus, SUMOP cleavage renders the native protein sequence without any additional amino acids.
CLEAVAGE EFFICIENCY | ~99% at 0.1 mg protease/mg target protein
STORAGE/SHIPPING CONCENTRATION | ~15 mg/mL
RECOMMENDED ASSAY CONCENTRATION | 2 mg/mL
RECOMMENDED STORAGE CONDITIONS | -80°C long term or -20°C for 2-3 months in shipping buffer
Additional processing information: SUMOP releases CL7-tagged proteins from the Im7 resin-bound CL7 tag. The final protease concentration in the eluted sample comprises ~1.5-3% of total impurities. If needed, SUMOP can be purified from the sample with a His-trap column or via size exclusion chromatography.
TriAltus offers several exclusive expression plasmids with the SUMO cleavage site and CL7 tag, including Plasmid #3, 21, 22, 31, 32, 33, and 34.