In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

[Q]:  Therefore , a structural interaction between PsaL and PsaI may stabilize the association of PsaL with the photosystem I core .
[A]: photosystem I core


[Q]:  The inhibition of monoamine oxidase ( MAO ) by tranylcypromine was studied in 6 healthy volunteers given increasing doses of 10 , 15 , 20 and 25 mg / day over a 4 - week period .
[A]: monoamine oxidase


[Q]:  Reduction of p53 protein was detected after 1 day of OM treatment and reached maximal suppression of 10 - 20 % of control after 3 days in H3922 and 40 % of control after 4 days in MCF - 7 cells .
[A]:
p53 protein