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. 1997 Apr 1;94(7):2833–2837. doi: 10.1073/pnas.94.7.2833

Figure 1.

Figure 1

A ribbon drawing of RNase T1 generated from the crystal structure (Protein Data Base entry 9RNT) determined by Martinez-Oyanedel et al. (7). The ribbon drawing was made with molscript (8). The single α-helix in RNase T1 spans residues 13–29. The site of substitution, Ala-21, is shown.