Literature DB >> 4525318

Nuclear magnetic resonance spectroscopy. Carbon-13 spin-lattice relaxation time measurements of amino acids.

I M Armitage, H Huber, H Pearson, J D Roberts.   

Abstract

The (13)C spin-lattice relaxation times, T(1)'s, of several amino acids have been measured as a function of pD and concentration. A strong dependence of the carboxyl carbon T(1) was observed for both pD and concentration and is believed to be due to intermolecular associations. For the carboxyl carbon, spin rotation is proposed as the predominant relaxation mechanism, whereas the other carbons are relaxed mainly by the dipole-dipole mechanism, and their relaxation times are relatively independent of changes in concentration and pD.

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Year:  1974        PMID： 4525318      PMCID： PMC388393          DOI： 10.1073/pnas.71.5.2096

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  3 in total

1.  Intramolecular motion in peptide determined by 13C NMR: a spin-lattice relaxation time-study on MSH-release-inhibiting factor.

Authors:  R Deslauriers; R Walter; I C Smith
Journal:  FEBS Lett       Date:  1973-11-15       Impact factor: 4.124

2.  Study of internal rotations in gramicidin S by means of carbon-13 spin-lattice relaxation measurements.

Authors:  A Allerhand; R A Komoroski
Journal:  J Am Chem Soc       Date:  1973-12-12       Impact factor: 15.419

3.  Carbon-13 nuclear magnetic resonance studies on thyrotropin-releasing factor and related peptides.

Authors:  R Deslauriers; C Garrigou-Lagrange; A M Bellocq; U C Smith
Journal:  FEBS Lett       Date:  1973-04-01       Impact factor: 4.124
  3 in total
  2 in total

1.  Nuclear magnetic resonance spectroscopy: reinvestigation of carbon-13 spin-lattice relaxation time measurements of amino acids.

Authors:  H Pearson; D Gust; I M Armitage; H Huber; J D Roberts; R E Stark; R R Vold; R L Vold
Journal:  Proc Natl Acad Sci U S A       Date:  1975-04       Impact factor: 11.205

2.  Spin-lattice relaxation times for 13C in isotope-enriched glycine accumulated in frog muscle.

Authors:  M C Neville; H R Wyssbrod
Journal:  Biophys J       Date:  1977-03       Impact factor: 4.033
  2 in total

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