Amino-acid sequence study in peptides by mass spectometry—III Investigation of ethyoxycarbonyl-peptide methyl estersdoi:10.1002/oms.1210010305J. P. KamerlingLaboratories of Organic Chemistry and Analytical Chemistry, University of Utrecht, The NetherlandsW. Heerma...
Mass spectrometric methods are becoming available that probe structural or topological aspects of peptides and proteins. However, most of them require exte... SD Friess,JM Daniel,R Hartmann,... - 《International Journal of Mass Spectrometry》 被引量: 69发表: 2002年 Amino acid analysis of peptid...
The average molecular weight of an amino acid is 110Da. Dalton (Da) is an alternate name for the atomic mass unit, and kilodalton (kDa) is 1,000 daltons. Thus a protein with a mass of 64kDa has a molecular weight of 64,000 grams per mole. Peptide Bond Formation. R1 and R2 repre...
The primary fragments are labelled according to their mass. Bottom: Fragmentation pattern of the measured amino acid spectra (lysine omitted), grouped by masses corresponding to the parent (i.e. intact) molecule (green), the amino acid without its −COOH group (red), the side chain of the...
tive ion electrospray ionisation (ESI) tandem mass spec- trometry, 13–16 to evaluate the general applicability of this method to the analysis of JA amino acid conjugates with respect to intended LC/MS analyses (Scheme 1). Experimental The ESI mass spectra (centroid data) and the ESI- MS/...
(i.e., by sds-page analysis or mass spec- troscopy), the amino acid composition of the unknown pro- tein can be predicted. calculate the number of residues of each amino acid by the formula: m/(1000m/m wt ), in which mis the recovered quantity, in nmol, of the amino acid under...
英文名称:Aminomethane sulfonic acid 分子式:CH5NO3S 纯度:98% 产地:上海 品牌: PERFEMIKER 包装规格:10mg 货号:1887K CAS编号: 13881-91-9 别名:氨基甲烷磺酸;氨基甲磺酸;氨基甲基磺酸;氨基甲烷磺酸,97%;氨基甲磺酸(白色粉末;氨甲磺酸 产品信息:产品名称:氨基甲磺酸,Aminomethanesulfonic acid|13881-91-9 中...
A novel method for detecting amino acids derivatized with phenyl isothiocyanate by high-performance liquid chromatography-electrospray ionization mass spec... Complete separation of 15 amino acid derivatives was achieved with an Agilent Eclipse plus C18 column maintained at 30 degrees C in 29 min. The...
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