Title : H-NMR study of rabbit skeletal muscle troponin C: Ca(2+)-dependent interaction with mastoparan.

Pub. Date : 1992 May 22

PMID : 1599944






9 Functional Relationships(s)
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1 1H-NMR spectroscopy is employed to study the interaction between rabbit skeletal muscle troponin (C (TnC) and wasp venom tetradecapeptide mastoparan. Hydrogen tenascin Oryctolagus cuniculus
2 We monitored the spectral change of the following species of TnC as a function of mastoparan concentration: apoTnC, Ca(2+)-saturated TnC (Ca4TnC) and Ca(2+)-half loaded TnC (Ca2TnC). ca2tnc tenascin Oryctolagus cuniculus
3 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Phenylalanine tenascin Oryctolagus cuniculus
4 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Isoleucine tenascin Oryctolagus cuniculus
5 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Valine tenascin Oryctolagus cuniculus
6 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Phenylalanine tenascin Oryctolagus cuniculus
7 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Aspartic Acid tenascin Oryctolagus cuniculus
8 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Threonine tenascin Oryctolagus cuniculus
9 When apo-TnC is titrated with mastoparan, line-broadening is observed for the ring-current shifted resonance of Phe-23, Ile-34, Val-62 and Phe-72 and the downfield-shifted CH alpha-resonances of Asp-33, Thr-69 and Asp-71; these residues are located in the N-domain. Aspartic Acid tenascin Oryctolagus cuniculus