 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 8]](ba5128fig8mag.jpg)
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Figure 8
Examples of errors in carbohydrate chains in the PDB. (a) Missing LINK records can result in too large distances between individual residues (PDB entry 1eqh ; Selinsky et al., 2001  ). (b) Superfluous LINK records can be found when nonlinked atoms are rather close in space (PDB entry 1apy
; Oinonen et al., 1995). (c) In entry 1pxx
(Rowlinson et al., 2003), the C1 atom is missing, although all three surrounding atoms are resolved in the three-dimensional structure. (d) Superfluous atoms (cyan) are sometimes found within glycosidic linkages (Dellisanti et al., 2007). (e) When individual unconnected residues are arranged in a way that is usually found in N-glycan chains, they probably should be linked to each other, which would result in a deletion of the O1 atoms (PDB entry 3d2u
; Yang & Bjorkman, 2008). |
![[Figure 8]](ba5128fig8.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
