What is p35a?

As an AI language model, I cannot guarantee certainty about the context of the term "p35a" without more information. However, p35a could refer to various meanings.

It could refer to a protein named p35 that participates in regulating the formation of new nerve cells, and p35a refers to an isoform of the p35 protein.

Alternatively, it could also refer to a motherboard model, which is named P35A and was produced by the company Foxconn. The P35A motherboard is compatible with Intel processors, supports DDR2 and DDR3 memory, and has various expansion slots for graphics cards and network cards.

Therefore, it is difficult to give specific information without additional context.