产品说明
Description:FormerChromogenixsubstrateS-2586nowhasasanidenticalreplacementproduct,DiapharmaCS–PSA(KLK3),productnumberDPG586-25.DiaPharmaCS–PSA(KLK3)isachromogenicpeptidesubstrateforchymotrypsinandprostatespecificantigen(PSA).DiaPharmaCS–PSA(KLK3)maybeusedforassaying(1)purifiedpreparationsofchymotrypsin,(2)chymotrypsin-likeactivityinBIOLOGicalsamples,and(3)anti-chymotrypsininbloodplasma.AchymotrypsinactivityresearchmethodusingsubstrateMeO-Suc-Arg-Pro-Tyr-pNAisavailable.ResearchalsosuggeststhattheMeO-Suc-Arg-Pro-Tyr-pNAchromogenicsubstratecanbeusedinresearching enzymaticprostate-specificantigen(PSA)activity.PSAisachymotrypsin-likeserineproteasebelongingtothehumankallikreinfamily,specificallyknownaskallikrein-relatedpeptidase3(KLK3).AlthoughantigenisusedinthenameandPSAisbestknowninresearching prostatecancer,PSAisanactiveenzymethatisproducedathighlevelsinprostatecancer,buttheroleofitsserineproteaseactivityinprostatecancerremainsamystery.Composition:EachvialcontainschromogenicsubstrateMeO-Suc-Arg-Pro-Tyr-pNA•HCl25mgandmannitol40mgaddedasabulkingagent.CHEMISTRYMeO-Suc-Arg-Pro-Tyr-pNA•HClMW:668.29(withoutHClsalt)PRINCIPLEMeO-Suc-Arg-Pro-Tyr-pNA+E→MeO-Suc-Arg-Pro-Tyr-OH+pNA+EE=EnzymeBackground:S-2586wasoriginallyusedtostudychymotrypsinactivity:ThechymotrypsinactivityisdeterminedbyitsamidolyticeffectonthesubstrateMeO-Suc-Arg-Pro-Tyr-pNA(S-2586).Therateatwhichp-nitroaniline(pNA)isreleasedismeasuredphotometricallyat405nm.Thiscanbefollowedonarecorder(initialratemethod)orreadafterstoppingthereactionwithaceticacid(acidstoppedmethod).The correlationbetweenthechangeinabsorbanceperminute(DA/min)orabsorbance(A)andthechymotrypsinactivityislinearinthe0.05-1.0µkat/lor3-60U/lrange.Theamidolyticactivityofdifferentchymotrypsinpreparationsdoesnotnecessarilyparalleltheproteaseactivity.Prostate-specificantigenisa“chymotrypsin-like”serineprotease:PSAisbestknownasaprostatecancerbioMarker.Itisaserineproteasethatbelongstothehumankallikreinfamilyandpossessaspecificitysimilartochymotrypsin.Therefore,manystudieshaveshownthatthischromogenicsubstratecanbeusedforstudyingPSAenzymeactivity.PSAmaybeanattractivetargetinprostatecancer,andthereforePSAinhibitorsmayrepresentapromisingclassofresearchcompounds.TheinhibitionofofproteolyticactivityofPSAbyinhibitorscanbemeasuredusing MeO-Suc-Arg-Pro-Tyr-pNAsubstrates.
Diapharma使命宣言
位于俄亥俄州西切斯特的Difarma Group,Inc.在诊断和研究领域销售止血、血栓形成、血小板功能测试、仪器和凋亡产品,并提供强大的技术能力和经验,以确保满足或超过客户的期望。
地黄止血显色凝块酶联免疫吸附试验试剂盒
历史
1997年1月1日,由俄亥俄州富兰克林市的Pharmacia Hepar,Inc.成立,最初是Chromogenix基质和分析的独家美国和加拿大经销商。
四分之一个多世纪前,Chromogenix开发了第一个显色底物技术,其前身是Kabi Diagnostica。卡比后来与法玛西亚合并。希帕玛目前的一些员工在法玛西亚肝素制造厂的显色部门工作。
1998年,夏帕玛搬到了俄亥俄州的西切斯特,至今仍在那里。多年来,迪法玛扩大了其产品线,包括各种止血、细胞死亡、血小板功能、生态毒理学、化验、试剂、抗体和高级制造商的仪器。
2017年,夏帕玛庆祝了20年的成功
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