You have to answer a biomedical question in binary format, i.e. only yes and no are the only acceptable answer formats. A list of paragraphs is provided as context to help you answer the question.

Question: Is the protein MCL-1 anti-apoptotic?

Context: increased expression of anti-apoptotic proteins (Bcl-xL, Mcl-1 and XIAP)
repression of anti-apoptotic proteins (Mcl-1, Bcl-xl and XIAP)
anti-apoptotic BCL-2 family members, such as BCL-2, BCL-XL or MCL-1
yes