BIOMOL Green™ provides a simple and convenient method for colorimetric phosphate quantitation (abs. 600-680 nm). Unlike other molybdate/malachite green-based assays, BIOMOL Green™ doesn’t require multiple solutions or reagents prepared fresh on the day of the assay. BIOMOL Green™ is extremely stable (>6 mos. at 4°C) and is simply mixed, at room temperature, with any enzymatic reaction that has released free phosphate. Reported applications include assays for phospholipid phosphatases, tyrosyl-tRNA synthetase (coupled with pyrophosphatase) and a viral RNA triphosphatase.BIOMOL Green™ has perhaps been most widely applied to protein phosphatase assays.
Typically, a protein phosphatase (e.g. PTP1B or LAR) is simply incubated with an appropriate phosphopeptide (e.g. IR5,9,10). Addition of BIOMOL Green™ stops the reaction and begins color development, which is read 20-30 min. later.BIOMOL Green™ may be used in cuvette or microplate-based assays and is ideal for high-throughput applications. Each kit comes with a standardized phosphate solution for assay calibration.
Product Specification
| Kit/Set Contains: | Biomol Green™ Reagent (Prod. No. BML-AK111) (1l or 250ml; liquid in screw cap plastic bottle) Storage: room temperature. Long-term at 4°C; can be stored frozen without deleterious effects.
Phosphate Standard (Prod. No. BML-KI102) (1ml; 800µm phosphate in distilled water) Storage: room temperature. Long-term at 4°C; can be stored frozen without deleterious effects. |
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| Long Term Storage: | +4°C |
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Product Literature References
Characterization and kinetic analysis of the intracellular domain of human protein tyrosine phosphatase beta (HPTP beta) using synthetic phosphopeptides: K. W. Harder et al.; Biochem. J.
298 , 395 (1994),
Abstract;
Use of fluorinated tyrosine phosphates to probe the substrate specificity of the low molecular weight phosphatase activity of calcineurin: B. Martin et al.; J. Biol. Chem.
260, 14932 (1985),
Abstract;