Abstract
Comparison of the amino-acid sequences of the three proteins shows that a common pattern of invariant non-polar residues exists. This permits a tentative assignment of exterior and interior positions. Glutamic acid at position 188 looks like the ionic binding site for trypsin substrates.
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SMILLIE, L., FURKA, A., NAGABHUSHAN, N. et al. Structure of Chymotrypsinogen B compared with Chymotrypsinogen A and Trypsinogen. Nature 218, 343–346 (1968). https://doi.org/10.1038/218343a0
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DOI: https://doi.org/10.1038/218343a0
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