inactive mutant

in·ac·tive mu·tant

a mutant that is not phenotypically manifest.
Synonym(s): silent mutant
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References in periodicals archive ?
A catalytically inactive mutant form of Tpr::SVH-2C is not recognized by the anti-phosphotyrosine antibody, suggesting that Tpr::SVH-2C autophosphorylates at tyrosine residues.
The purpose of this research project is to develop a plate assay that will easily screen for the restored activity of an inactive mutant CK.
JNK(K-R) and MEKK(K-M), the catalytically inactive mutants of, respectively, JNK1 and MEKK in the JNK pathway, attenuate the shear-induced TRE responses.

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