Zn Coordinative Bonds fold in tertiary structure polypeptide chains and conecting RXR-PPAR Back to the tutorial 3DZYPPARMarzPPAR-gamma LBD’s Phe 347,Val248 , which resides in strand S4 also Asn335,Lys336,Asp337,Glu351 form hydrophobic as well hydrogen Bond interactions with RXR-a DBD 3DZYRXRMarz Leu196,Ala197 Asp166,Tyr189,Tyr192,Gln193,Lys201,Arg202,Glu203.