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:  As anticipated , NRXI could be demonstrated in all lymphoid cells studied from obligate carriers of XSCID and an obligate carrier of XLH but not on a carrier of X - linked immunodeficiency with hyper - IgM .

A: hyper - IgM
****
Q:  The discordant mutants may reflect interactions with a variable domain of a conserved component or unique interactions with specialized components of the basal transcription apparatus in different cells .

A: variable domain
****
Q:  Human peripheral blood monocytes have high affinity binding sites for 1 , 25 - ( OH ) 2D3 ( Kd 0 . 14 nM , sedimentation coefficient 3 . 7S ) .

A:
binding sites
****