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...

仪器介绍快速地测量食品中的脂肪含量对于食品的营养性和安全性研究是很重要的。核磁共振技术被广泛用于医疗领域，同时它也用于很多工业油脂等的质量控制检测，以及食品营养的研究和安全性检测。CEMFastTrac（快速脂肪水分分析仪）采用核磁技术，实现了快速、、实惠地测量各种食品中的水分和脂肪的目的，是目前zui的水分，脂肪测定方法。FastTrac特别为低水分样品而设计，可为您提供脂肪和水分的数据分析结果，优化我们的生产控制，剔除和减少不合格产品。主要特点相比传统的湿化学方法，磁共振...