亚洲国产成人精品福利_欧美日韩 国产 第一区_加勒比无码性爱高清在线_无码毛片一区二区三区免费_2022国产无码在线_男女啪啪免费观看网站_影音先锋中文字幕源资站_国产成人啪精品视频网_小一本精品日韩中文字幕在线_婷婷激情综合五月另类

Biotinand biotin derivatives bind with high affinity to both avidins andstreptavidins. Biotin and its derivatives can be conjugated to manybiomolecules without significantly altering the biological activity of thetarget molecules since biotin is relatively a small molecule. A biopolymer(such as proteins) can react with several molecules of biotin that, in turn,can each bind one avidin. This characteristic greatly increases the sensitivityof many biological assays. Biotin derivatives are widely used for biologicaldetections and purification. This biotin derivative is carbonyl-reactive. It isused for colorimetric assays for Factor XII (when used with EDC) and cellulartransglutaminase. It is also widely used for labeling peptides (carboxylic acidgroups) and nucleotides (5? phosphate groups) via the use of EDC.