Answer :
The lead that would be helpful in assessing bundle branch defects and confirm pacemaker wire placement is MCL1.
MCL1 is an acronym for Myeloid cell leukemia-1. This is a member of the antiapoptotic family proteins. It is vital in the regulation of mitochondrial homeostasis.
It should be noted that Myeloid cell leukemia-1 helps in the promotion of short-term viability in different cell types. It's a protein-coding gene.
It's vital when one wants to assess bundle branch defects and confirm pacemaker wire placement.
In conclusion, the correct option is MCL1.
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