I've seen instances like the following in roughly half a dozen deposited
structures over the past year or so. Each time I've contacted the
authors, who've been just as mystified as me by them - and certainly
didn't add them on purpose. It seems to me that some fairly
commonly-used package is erroneously turning clashes into LINK cards in
some circumstances. I just found the following clearly wrong LINKs in
6caj (deposited January this year):
LINK CD2 PHE I 266 CG2 THR I 272 1555 1555
1.47
LINK CE2 PHE I 266 CG2 THR I 272 1555 1555
1.47
... which looks like the attached image. The same bonds are also
specified in the mmCIF file, for the record.
Anyone have any clue?
Best regards,
Tristan
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