The soybean trypsin inhibitor was first crystallized by Kunitz in 1945 and is one of several such inhibitors found in soybeans. Its molecular weight is 21,500 ± 800 daltons and the optimum pH is 7.0. Soybean inhibitor inhibits trypsin mole-for-mole and to a lesser extent chymotrypsin. Enzyme activity definition： The activity of the inhibitors is expressed as the amount of twice crystallized trypsin (Aladdin Item: T128774) inhibited per milligram of inhibitor. 1mg trypsin ≥180 TAME units, 10,350 BAEE units, 3,450 USP/NF units.
1.Fanping Shi, Lei Wang, Yan Li, Yu Zhang, Xingguang Su. (2018) A simple “turn-on” detection platform for trypsin activity and inhibitor screening based on N-acetyl-l-cysteine capped CdTe Quantum Dots. SENSORS AND ACTUATORS B-CHEMICAL, 255 (2733). [PMID:][10.1016/j.snb.2017.09.087]
2.Wei-Xian Wang, Yuqing Wu, Hong-Wei Li. (2017) Regulation on the aggregation-induced emission (AIE) of DNA-templated silver nanoclusters by BSA and its hydrolysates. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 505 (577). [PMID:28646761][10.1016/j.jcis.2017.06.033]
References
1.Fanping Shi, Lei Wang, Yan Li, Yu Zhang, Xingguang Su. (2018) A simple “turn-on” detection platform for trypsin activity and inhibitor screening based on N-acetyl-l-cysteine capped CdTe Quantum Dots. SENSORS AND ACTUATORS B-CHEMICAL, 255 (2733). [PMID:][10.1016/j.snb.2017.09.087]
2.Wei-Xian Wang, Yuqing Wu, Hong-Wei Li. (2017) Regulation on the aggregation-induced emission (AIE) of DNA-templated silver nanoclusters by BSA and its hydrolysates. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 505 (577). [PMID:28646761][10.1016/j.jcis.2017.06.033]
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