| Autor: |
Waugh, RJ, Bowie, JH, Gross, ML |
| Zdroj: |
Australian Journal of Chemistry; 1993, Vol. 46 Issue: 5 p693-702, 10p |
| Abstrakt: |
The presence and position of Asn, Arg and Lys residues in dipeptides may be determined from a consideration of the collisional activation mass spectra of the (M-H)- ions formed by fast atom bombardment. All spectra show the basic dipeptide cleavage, i.e. NH2CH(R1)CONHCH(R2)CO2- → NH2C(R1)CONHCH(R2)CO2H → NH2C(R1)=C=O + -NHCH(R2)CO2H. There are a number of fragmentations characteristic of a particular α side chain: for example, Arg loses HN=C=NH (42 u). |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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