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.

[EX Q]:  Furthermore , Grap is associated with a Ras guanine nucleotide exchange factor mSos1 , primarily through its N - terminal SH3 domain .
[EX A]: SH3 domain

[EX Q]:  The NrfC polypeptide , M ( r ) 24 , 567 , contains 16 cysteine residues arranged in four clusters typical of the CooF super - family of non - haem iron - sulphur proteins .
[EX A]: NrfC polypeptide

[EX Q]:  UV cross - linking and Southwestern analysis suggested that KTP1 is a DNA - binding protein clearly distinct from AP2 , and this protein may be responsible for the basal keratinocyte - specific expression of the BPAG1 gene .
[EX A]:
BPAG1 gene