hnCOcaNH and hncoCANH pulse sequences for rapid and unambiguous backbone assignment i
 

hnCOcaNH and hncoCANH pulse sequences for rapid and unambiguous backbone assignment in (13C, 15N) labeled proteins


Publication year: 2010
Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 30 June 2010</br>
Dinesh, Kumar , Jithender G, Reddy , Ramakrishna V., Hosur</br>
Time-saving in data acquisition is a major thrust of NMR pulse sequence development in the context of structural proteomics research. The conventional HNCA and HN(CA)CO pulse sequences, routinely used for sequential backbone assignment, have the limitation that they cannot distinguish inter- and intra-residue correlations. In order to remove this ambiguity, one has to record HNCO and HN(CO)CA or sequential HNCA experiments which provide unambiguous information of sequential correlations. However, this almost doubles the experimental time. Besides, they require repeated scanning through the 15N planes to search for the matching peaks along the carbon dimension. In this background, we present here...</br>

Source: Journal of Magnetic Resonance