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| Description: The binding site, in the central cavity of the HbA tetramer is lined with eight positively charged groups that help bind the negatively charged 2,3-BPG molecule. Note the His residues (b143) that are replaced by Ser in fetal hemoglobin (HbF). Picture Stats: Views: 260 Filesize: 376.78kB Height: 450 Width: 921 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34130 |