DHFR protein (His tag) | 80R-1187

DHFR protein (His tag) | 80R-1187 |

Activity Code: ACTIVE

Product Type: Proteins

Product Subtype: Conjugated Proteins

Research Area: Protein Modification & Stress Response

Short Description: Purified recombinant Human DHFR protein

Immunogen: N/A

Host: N/A

Specificity: N/A

Cross Reactivity: N/A

Isotype: N/A

IClone: N/A

Species: Human

Residues: 1-187 amino acids: MGSSHHHHHH SSGLVPRGSH MVGSLNCIVA VSQNMGIGKN GDLPWPPLRN EFRYFQRMTT TSSVEGKQNL VIMGKKTWFS IPEKNRPLKG RINLVLSREL KEPPQGAHFL SRSLDDALKL TEQPELANKV DMVWIVGGSS VYKEAMNHPG HLKLFVTRIM QDFESDTFFP EIDLEKYKLL PEYPGVLSDV QEEKGIKYKF EVYEKND

Tag/conjugate: His tag

Protein Type: Recombinant

Expression System: E.coli

Grade & Purity: > 95% pure

Methode of Purification: N/A

Source: N/A

Concentration: 1 mg/ml

Form & Buffer: Supplied as a liquid in 20mM Tris-HCl buffer, pH 8.0, containing 0.1M NaCl, 2mM DTT, and 30% glycerol.

Storage: Store at 4 deg C for short term storage (1/2 weeks) . Aliquot and store at -20 deg C or - 70 deg C for long term storage. Avoid repeated freeze/thaw cycles.

Shipping Information: *Blue Ice*

Applications: SDS-PAGE

Bioactivity: Specific activity is 1.5 - 2.5 units/ml and was obtained by measuring the oxidation of NADPH in absorbance at 340 nm during reaction. One unit will convert 1.0 umole of 7, 8 dihydrofolate and beta-NADPH to 5, 6, 7, 8-tetrahydrofolate and beta-NADP per minute at pH 6.5 at 25 DEg C.

Usage Recommendations: N/A

Assay Information: 1. Prepare a 3.2 ml reaction mixture in a suitable container: The final concentrations are 50 mM potassium phosphate, 0.72 mM DHFA, 0.1mM beta-NADPH, 0.003% (w/v) BSA. 2. Equilibrate to 25 DEg C and monitor at A340nm until the value is constant using a spectrophotometer. 3. Add 2.5ug of recombinant DHFR into reaction mixture and mix immediately. 4. Record the increase at A340nm for 2 minutes