TASK DEFINITION: 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.
PROBLEM:  Therefore , a structural interaction between PsaL and PsaI may stabilize the association of PsaL with the photosystem I core .

SOLUTION: photosystem I core

PROBLEM:  Further , we find that the BMI1 protein can also interact with itself .

SOLUTION: BMI1 protein

PROBLEM:  We have determined the complete cDNA sequence of rat plectin from a number of well - characterized overlapping lambda gt11 clones .

SOLUTION:
rat plectin