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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(yǎng)性和安全性研究是很重要的。核磁共振技術(shù)被廣泛用于醫(yī)療領(lǐng)域，同時它也用于很多工業(yè)油脂等的質(zhì)量控制檢測，以及食品營養(yǎng)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(shù)，實現(xiàn)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(shè)計，可為您提供脂肪和水分的數(shù)據(jù)分析結(jié)果，優(yōu)化我們的生產(chǎn)控制，剔除和減少不合格產(chǎn)品。主要特點相比傳統(tǒng)的濕化學方法，磁共振...