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Figure 4
Examples of additional hydrogen bonding in composite structures incorporating G1 β-bulges: (a) G1α β-bulge loop (PDB entry 119l, residues 20–24; Blaber et al., 1993 ), (b) G1α β-bulge loop (PDB entry 1aqb, residues 124–128; Zanotti et al., 1998 ), (c) G1α β-bulge loop (PDB entry 1fnc, residues 239–243; Bruns & Karplus, 1995 ), (d) G1β β-link (PDB entry 1a62, residues 55, 92–95; Allison et al., 1998 ), (e) G1β β-link (PDB entry 1k7i, residues 318–321, 334; Hege & Baumann, 2001 ), (f) G1β β-link (PDB entry 1fdr, residues 9, 83–86; Ingelman et al., 1997 ). |
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