Kaya Mustafa Oguzhan, Arslan Oktay, Guler Ozen Ozensoy
Division of Basic Sciences, Biochemistry Department, Faculty of Veterinary Medicine, Siirt University , Siirt , Turkey .
J Enzyme Inhib Med Chem. 2015;30(4):524-7. doi: 10.3109/14756366.2014.949253. Epub 2014 Nov 6.
In this study, a new affinity gel for the purification of bovine testicular hyaluronidase (BTH) was synthesized. L-Tyrosine was added as the extension arm to the Sepharose-4B activated with cyanogen bromide. m-Anisidine is a specific inhibitor of BTH enzyme. m-Anisidine was clamped to the newly formed Sepharose-4B-L-tyrosine as a ligand. As a result, an affinity gel having the chemical structure of Sepharose-4B-L-tyrosine-m-anisidine was obtained. BTH purified by ammonium sulfate precipitation and affinity chromatography was obtained with a 16.95% yield and 881.78 degree of purity. The kinetic constants K(M) and V(Max) for BTH were determined by using hyaluronic acid as a substrate. K(M) and V(Max) values obtained from the Lineweaver-Burk graph were found to be 2.23 mM and 19.85 U/mL, respectively. In vitro effects of some chemicals were determined on purified BTH enzyme. Some chemically active ingredients were 1,1-dimethyl piperidinium chloride, β-naphthoxyacetic acid and gibberellic acid. Gibberellic acid showed the best inhibition effect on BTH.
在本研究中,合成了一种用于纯化牛睾丸透明质酸酶(BTH)的新型亲和凝胶。将L-酪氨酸作为延伸臂添加到用溴化氰活化的琼脂糖-4B上。间茴香胺是BTH酶的特异性抑制剂。将间茴香胺作为配体固定在新形成的琼脂糖-4B-L-酪氨酸上。结果,获得了具有琼脂糖-4B-L-酪氨酸-间茴香胺化学结构的亲和凝胶。通过硫酸铵沉淀和亲和色谱法纯化的BTH的产率为16.95%,纯度为881.78度。以透明质酸为底物测定了BTH的动力学常数K(M)和V(Max)。从Lineweaver-Burk图获得的K(M)和V(Max)值分别为2.23 mM和19.85 U/mL。测定了一些化学物质对纯化的BTH酶的体外作用。一些化学活性成分是1,1-二甲基哌啶氯化铵、β-萘氧基乙酸和赤霉素。赤霉素对BTH显示出最佳抑制作用。