Tabb David L, McDonald W Hayes, Yates John R
Department of Molecular Biotechnology, University of Washington, Seattle, Washington 98195, USA.
J Proteome Res. 2002 Jan-Feb;1(1):21-6. doi: 10.1021/pr015504q.
The components of complex peptide mixtures can be separated by liquid chromatography, fragmented by tandem mass spectrometry, and identified by the SEQUEST algorithm. Inferring a mixture's source proteins requires that the identified peptides be reassociated. This process becomes more challenging as the number of peptides increases. DTASelect, a new software package, assembles SEQUEST identifications and highlights the most significant matches. The accompanying Contrast tool compares DTASelect results from multiple experiments. The two programs improve the speed and precision of proteomic data analysis.
复杂肽混合物的成分可通过液相色谱进行分离,通过串联质谱进行片段化,并通过SEQUEST算法进行鉴定。推断混合物的源蛋白需要将鉴定出的肽重新关联起来。随着肽数量的增加,这个过程变得更具挑战性。DTASelect是一个新的软件包,它整合了SEQUEST的鉴定结果,并突出显示最显著的匹配项。附带的Contrast工具可比较多个实验的DTASelect结果。这两个程序提高了蛋白质组数据分析的速度和精度。