I'd like to know the name of a gene with the following description of effects:
- Humans having two copies of this gene with a certain mutation aren't able to acquire human language, but otherwise their intelligence is not depressed
- The human version of the gene differs significantly from the one found in the great apes
- The human version of the gene was transferred to mice, and it was reported that the "voice" and the communication of the so-manipulated mice differs from the one of "wild" mice
- If I remember correctly, the gene has the letter "x" in it like hox or pox or pax but alas, memory can be faulty
What is the name of this gene?
Bonus question: What are relevant publications concerning the gene described?