The peptide NH protons of unstructured polypeptides exchange readily with aqueous
solvent protons. Proton exchange rates of native proteins are retarded by many orders of …

The characterization of eight benzo [o] pyrene-deoxyribonucleoside adducts derived from
reaction of the onti-dihydrodiol epoxide and deoxyguanylic and deoxyadenylic acids is …

The 1H-and 13C-nmr spectra of taxol [1], 7-epi-taxol [2], and cephalomannine [3] were
assigned usingmodem ID and 2D nmr methods. Preliminary conformational information was …

'H mult6 31P mult assignment 167.9 s S# 3, or a. 157.9 dd (22.1 Hz)»! or# 3, 134.3 dd (10.9
Hz) 2 or 3 133.5 dd (2.5 Hz) 4 128.5 dd (13.5 Hz) 3 or 2 121.4 sd (103.5 Hz) 1 63.2 ts a2 or …

Practical experimental performance limits for an ensemble of heteronuclear 2D NMR experiments
using a state-of-the-art 600 MHz 1.7 mm Bruker TCI Micro CryoProbe are reported. In …

The exchange kinetics of the slowest exchanging BPTI beta-sheet protons are complex
compared to model peptides; the activation energy, E alpha, and the pH dependence are …

Angiotensinogen is a 66 kDa globular protein circulating in human blood with a concentration
of ca. 1 μg mL-1 (15 nM). 1 The kidney protease renin cleaves the N-terminal decapeptide …

IR, UV-visible spectroscopy, circular dichroism, xll and 13CNMRstudies, high resolution
electron impact, field desorption, andfast atombombardmentmassspectral studies are reported …

METHODS Eighteen subadult snook were collected in coastal waters at South Padre Island
and Port Isabel, Texas in September 1983, and were transported to Heart of the Hills …

The chemical structures of 16 principal adducts formed from the deoxyadenosine and
deoxyguanosine residues of DNA upon reaction invitro with the fourconfigurationally isomeric 3, 4-…