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INTRODUCTIONTheAKR/Grossmurineleukemiaviruses（MuLV）areC-typeretrovirusesthatcausethedevelopmentofleukemiainAKR（H-2k）mice.1Type-specificantiretroviralcytotoxicT-lymphocyte（CTL）responseshavebeenreportedthatallowdifferentiationbetweeninfection...

INTRODUCTIONInthedevelopmentofantibodiesdirectedagainstspecificpeptidesequences,T-helperepitopesareoftentaggedontothepeptidesequencetoaidinthestimulationoftheimmuneresponse.OnesuchsequenceistheuniversalPanHLADR-bindingepitope（PADRE）.Synthes...

INTRODUCTIONOnechallengefacingpeptidesynthesisisthe-lactamformationofarginine（Figure1）.Theformationof-lactamoccurswhentheinternalnitrogenoftheguanidineattackstheactivatedester,irreversiblyformingthelactamring.Thisreactioniscompetitivewithpe...

INTRODUCTIONOnepotentialissueinpeptidesynthesisisracemizationofcysteineａndhistidine.Thisisaconcernformicrowavepeptidesyntheisbecauseoftheelevatedtemperaturesduringdeprotectionａndcoupling.Studieshaveshownthatloweringthetemperatureto50°Cdurin...

INTRODUCTIONVIP（vasoactiveintestinalpeptide）,apeptidehormone,hasbeenimplicatedinanumberofbiologicalprocessesincluding:increasingdigestivesystemmotility,stimulatingpepsinogensecretion,controllingthemammaliancircadiantimekeepingmachinery,regu...

儀器介紹快速地測量食品中的脂肪含量對于食品的營養性和安全性研究是很重要的。核磁共振技術被廣泛用于醫療領域，同時它也用于很多工業油脂等的質量控制檢測，以及食品營養的研究和安全性檢測。CEMFastTrac（快速脂肪水分分析儀）采用核磁技術，實現了快速、、實惠地測量各種食品中的水分和脂肪的目的，是目前zui的水分，脂肪測定方法。FastTrac特別為低水分樣品而設計，可為您提供脂肪和水分的數據分析結果，優化我們的生產控制，剔除和減少不合格產品。主要特點相比傳統的濕化學方法，磁共振...