Peptide photodissociation with 157 nm light in a commercial tandem time-of-flight mass spectrometer.
Peptide photodissociation with 157 nm light in a commercial tandem time-of-flight mass spectrometer.
复制标题
DOI:
10.1021/ac9012557
复制
发表时间:
2009-09-15
影响因子:
7.4
通讯作者:
Reilly, James P.
中科院分区:
文献类型:
--
作者:
Zhang, Liangyi;Reilly, James P.
Photodissociation with 157 nm light was implemented in an ABI model 4700 matrix-assisted laser desorption ionization (MALDI) tandem time-of-flight (TOF) mass spectrometer for peptide analysis. With a homemade computer program to control the light timing based on the m/z of each precursor ion, the photodissociation setup was seamlessly automated with the mass spectrometer. Peptide photodissociation in this apparatus yielded fragments similar to those observed in previous experiments with a homebuilt tandem-TOF mass spectrometer. Peptides having arginine at their C-termini yielded high-energy x-, v- and w- type fragments while peptides with N-terminal arginine produced many a- and d- type ions. Abundant immonium ions were also generated. High-quality photodissociation spectra were obtained with as little as 5 fmol of peptides. In the analysis of various tryptic peptides, photodissociation provided much more sequence information than the conventional TOF-TOF CID. Because of the high fragmentation efficiency, sensitivity was not sacrificed to achieve this.
登录
查看更多内容
影响因子:
7.4
作者:
Medzihradszky, KF;Campbell, JM;Burlingame, AL
通讯作者:
Burlingame, AL
影响因子:
2.3
作者:
Joly, Laure;Antoine, Rodolphe;Lemoine, Jerome
通讯作者:
Lemoine, Jerome
DOI:
10.1016/0168-1176(93)03876-n
发表时间:
1994-02-24
期刊:
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
影响因子:
--
作者:
KAUFMANN, R;KIRSCH, D;SPENGLER, B
通讯作者:
SPENGLER, B
影响因子:
7.4
作者:
Kjeldsen, F;Haselmann, KF;Zubarev, RA
通讯作者:
Zubarev, RA
DOI:
10.1073/pnas.83.17.6233
发表时间:
1986-09-01
影响因子:
11.1
作者:
HUNT, DF;YATES, JR;HAUER, CR
通讯作者:
HAUER, CR