| 2HD1: reference: Crystal structure of phosphodiesterase 9 shows orientation variation of inhibitor 3-isobutyl-1-methylxanthine binding., Huai Q, Wang H, Zhang W, Colman RW, Robinson H, Ke H, Proc Natl Acad Sci U S A 2004 Jun 29;101(26):9624-9. Epub 2004 Jun 21. PMID: 15210993 |
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