6352193791

ENTHALPY OF INTERPEPTIOE HYDROGEN BONDS IN COLLA

Background: ColU*<n U im* MMI «buiMUnl pioUM Ul mamnuli mh! h omm CMipoiwnf

of thr CMAKlht Uaiur MrU. Tfifatr HrU«J Uoyotolliyn molrruki air thp imUi uiu(i of toSUffn Tr«>puoBA^« ia (twpoard of irfraUiiK Irifirpudri fOt> X Y> . *hrir X-Pto im 37.IH •nd Y- 4 H>pIn    ofcmnrm Thf tarUtfi•flh# colUgrn tnpU hrU% hUbdiiy mclude InlrrprpUk

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Theory

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thc cnthalpy of intcrpcptidc hydroRcn bond and poly(Pro-Gly-

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Calculation of cnthalpy of interpeptide hydrogen bond AH„ „
Poly(Pro-Oly-Pro)	Collage n
Thcorctical calculation*	Calorimetry* IR apectroacopy
7.6:1.0 kJ/mol	5.611.2 kJ/mol
Cxpcrimrnt (IR apectroacopy)	Calorimetry
7.58 1.2 kJ/mol	6.5 0.4 kJ/mol
Avcra|e values
7.6 :1.2 kJ/mol	6.0 11.2 kJ/mol |

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Calorimetry

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Conclution: Knibalpy uf IntrrpffHklf Nil. C.O. hydn^fn bond wrir    aumu u««

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V«. P. Borysfcmo. iMtityte of Rod>opfcyt<J and Ckctrcocs NAS of Uhrtt^tc Department of 8*ophy*ics 61085. Khorko* Ac Prokura »tr. 12 6-mail <eWrofr.ee khorfcgy uo WWW www ,rc hhorfcoy uo

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