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]: The combination of ICP47 and US11 rendered fibroblasts negative for surface class I MHC and allowed a class I MHC - low population of T cells to be sorted by flow cytometry .
[A]: class I MHC

[Q]: Here we show that one nudF suppressor also suppresses hs - mutations in nudA , nudC , and nudG and deletions in nudA and nudF .
[A]: nudF suppressor

[Q]: Profilins IIa and IIb are also present in humans , suggesting that all mammals have three profilin isoforms .
[A]:
profilin isoforms