Key result
The R111C substitution in turkey cardiac troponin I lowered binding affinity to troponin T, potentially compensating for the increased affinity of a cardiomyopathy-related TnT splicing variant.
The R111C polymorphism in wild turkey cardiac troponin I lowers binding affinity to troponin T, suggesting a compensatory mechanism for dilated cardiomyopathy-related TnT mutations and a potential therapeutic target.
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Hypothesis-generating for troponin compensation in cardiomyopathy models; leaves open human translation and therapeutic relevance.
Biesiadecki et al. (2004) studied Dilated cardiomyopathy. R111C polymorphism in cardiac TnI vs. Wild-type (Arg/Lys at position 111) was evaluated on Binding affinity to TnT. The R111C substitution in turkey cardiac troponin I lowered binding affinity to troponin T, potentially compensating for the increased affinity of a cardiomyopathy-related TnT splicing variant.
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