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:  These results provide strong evidence that conserved interhelical packing interactions in the gp41 core are important determinants of HIV - 1 entry and its inhibition .

A: gp41 core
****
Q:  A DNA fragment that complements the uvs - 2 mutation was subcloned by monitoring its ability to transform the uvs - 2 mutant to MMS resistance .

A: uvs - 2
****
Q:  Detailed comparison of the sequences of cp35 and human calpactin II shows that the only substantial sequence dissimilarity is a domain encoding amino acids between residues 20 and 40 which includes a tyrosine phosphorylation site in the human molecule , along with other residues of possible physiological significance .

A:
human calpactin II
****