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Thyroxine-binding prealbumin TBPA

Thyroxine binding prealbumin (TBPA) carries about 30% T but no Tj. Its affinity is only of the order of 10 M, but it is much more abundant in semm than is TBG. The amino acid sequence and the structure of this protein are known. Four identical subunits (127 amino acids each) form a prolate ellipsoid. Noncovalent interactions between the subunits form a channel of I nm diameter along the long axis, which has a funnel-shaped opening of 2.5 nm. The T molecule is held in one arm of this channel, binding... [Pg.360]

See other pages where Thyroxine-binding prealbumin TBPA is mentioned: [Pg.1501]    [Pg.408]    [Pg.699]    [Pg.277]    [Pg.774]    [Pg.204]    [Pg.690]    [Pg.708]    [Pg.216]    [Pg.1501]    [Pg.408]    [Pg.699]    [Pg.277]    [Pg.774]    [Pg.204]    [Pg.690]    [Pg.708]    [Pg.216]    [Pg.289]    [Pg.965]    [Pg.355]    [Pg.3933]    [Pg.46]    [Pg.46]    [Pg.274]    [Pg.468]    [Pg.443]   
See also in sourсe #XX -- [ Pg.774 ]



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