Tyrosine deprotonation yields abundant and selective backbone cleavage in peptide anions upon negative electron transfer dissociation and ultraviolet photodissociation.

Tyrosine deprotonation yields abundant and selective backbone cleavage in peptide anions upon negative electron transfer dissociation and ultraviolet photodissociation.
复制标题

DOI:
10.1021/ja3032086
复制
发表时间:
2012-09-26
影响因子:
15
通讯作者:
Brodbelt, Jennifer S.
Brodbelt, Jennifer S.
中科院分区:
化学1区
文献类型:
--
作者:
Shaw, Jared B.;Ledvina, Aaron R.;Zhang, Xing;Julian, Ryan R.;Brodbelt, Jennifer S.

文献摘要

参考文献

被引文献

相似文献

肽中的酪氨酸去质子化在NETD或UVPD时产生优先电子脱离,导致酪氨酸残基N-末端的显著N-C α键裂解。碘-酪氨酸修饰的肽的UVPD用于通过C-I键的均裂裂解在中性酪氨酸侧链上产生局部化自由基。随后的自由基物种的碰撞活化产生了相邻的N-末端N-C α键的相同的优先断裂。BSA的胰蛋白酶消化物的LC-MS/MS分析表明,当使用高pH移动的相时,经常观察到肽的这些裂解。
Tyrosine deprotonation in peptides yields preferential electron detachment upon NETD or UVPD, resulting in prominent N – Cα bond cleavage N-terminal to the tyrosine residue. UVPD of iodo-tyrosine modified peptides was used to generate localized radicals on neutral tyrosine side chains by homolytic cleavage of the C – I bond. Subsequent collisional activation of the radical species yielded the same preferential cleavage of the adjacent N-terminal N – Cα bond. LC-MS/MS analysis of a tryptic digest of BSA demonstrated that these cleavages are regularly observed for peptides when using high pH mobile phases.
DOI: 10.1002/chem.200400806
发表时间: 2005-03-04
影响因子: 4.3
作者:
Kjeldsen, F;Silivra, OA;Zubarev, RA
通讯作者: Zubarev, RA
DOI: 10.1007/s13361-011-0318-2
发表时间: 2012-03-01
影响因子: 3.2
作者:
Moore, Benjamin;Sun, Qingyu;Julian, Ryan R.
通讯作者: Julian, Ryan R.
DOI: 10.1002/pmic.201000565
发表时间: 2011-04
期刊: PROTEOMICS
影响因子: 3.4
作者:
Madsen, James A.;Kaoud, Tamer S.;Dalby, Kevin N.;Brodbelt, Jennifer S.
通讯作者: Brodbelt, Jennifer S.
DOI: 10.1016/j.cplett.2009.10.062
发表时间: 2010-01-07
影响因子: 2.8
作者:
Simons, Jack
通讯作者: Simons, Jack
DOI: 10.1021/ac000555c
发表时间: 2000-12-01
影响因子: 7.4
作者:
Gu, CG;Tsaprailis, G;Wysocki, VH
通讯作者: Wysocki, VH