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	1.	Substitution on the Phe3 aromatic ring in cyclic delta opioid receptor-selective dermorphin/deltorphin tetrapeptide analogues: electronic and lipophilic requirements for receptor affinity. [electronic resource] by Heyl, D L Mosberg, H I Producer: 19920609 In: Journal of medicinal chemistry vol. 35 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Modification of the Phe3 aromatic moiety in delta receptor-selective dermorphin/deltorphin-related tetrapeptides. Effects on opioid receptor binding. [electronic resource] by Heyl, D L Mosberg, H I Producer: 19921210 In: International journal of peptide and protein research vol. 39 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Opioid receptor binding requirements for the delta-selective peptide deltorphin. I: Phe3 replacement with ring-substituted and heterocyclic amino acids. [electronic resource] by Heyl, D L Dandabathula, M Kurtz, K R Mousigian, C Producer: 19950511 In: Journal of medicinal chemistry vol. 38 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Cyclic dermorphin-like tetrapeptides with delta-opioid receptor selectivity. 3. Effect of residue 3 modification on in vitro opioid activity. [electronic resource] by Mosberg, H I Heyl, D L Haaseth, R C Omnaas, J R Medzihradsky, F Smith, C B Producer: 19910117 In: Molecular pharmacology vol. 38 Availability: No items available. Save to lists Add to cart (remove)
	5.	Opioid receptor affinity and selectivity effects of second residue and carboxy terminal residue variation in a cyclic disulfide-containing opioid tetrapeptide. [electronic resource] by Heyl, D L Omnaas, J R Sobczyk-Kojiro, K Medzihradsky, F Smith, C B Mosberg, H I Producer: 19910917 In: International journal of peptide and protein research vol. 37 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Substitution of aromatic and nonaromatic amino acids for the Phe3 residue in the delta-selective opioid peptide deltorphin I: effects on binding affinity and selectivity. [electronic resource] by Heyl, D L Schmitter, S J Bouzit, H Johnson, T W Hepp, A M Kurtz, K R Mousigian, C Producer: 19950427 In: International journal of peptide and protein research vol. 44 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Development of a model for the delta opioid receptor pharmacophore. 2. Conformationally restricted Phe3 replacements in the cyclic delta receptor selective tetrapeptide Tyr-c[D-Cys-Phe-D-Pen]OH (JOM-13). [electronic resource] by Mosberg, H I Omnaas, J R Lomize, A Heyl, D L Nordan, I Mousigian, C Davis, P Porreca, F Producer: 19950113 In: Journal of medicinal chemistry vol. 37 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	8.	Binding to delta and mu opioid receptors by deltorphin I/II analogues modified at the Phe3 and Asp4/Glu4 side chains: a report of 32 new analogues and a QSAR study. [electronic resource] by Schullery, S E Mohammedshah, T Makhlouf, H Marks, E L Wilenkin, B S Escobar, S Mousigian, C Heyl, D L Producer: 19980409 In: Bioorganic & medicinal chemistry vol. 5 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	9.	The role of backbone conformation in deltorphin II binding: a QSAR study of new analogues modified in the 5-, 6-positions of the address domain. [electronic resource] by Schullery, S E Rodgers, D W Tripathy, S Jayamaha, D E Sanvordekar, M D Renganathan, K Mousigian, C Heyl, D L Producer: 20011101 In: Bioorganic & medicinal chemistry vol. 9 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	10.	Truncated analogues of endothelin and sarafotoxin are selective for the ETB receptor subtype. [electronic resource] by Heyl, D L Cody, W L He, J X Flynn, M A Welch, K M Reynolds, E E Doherty, A M Producer: 19940119 In: Peptide research vol. 6 Availability: No items available. Save to lists Add to cart (remove)
	11.	Development of a model for the delta opioid receptor pharmacophore. 1. Conformationally restricted Tyr1 replacements in the cyclic delta receptor selective tetrapeptide Tyr-c[D-Cys-Phe-D-Pen]OH (JOM-13). [electronic resource] by Mosberg, H I Lomize, A L Wang, C Kroona, H Heyl, D L Sobczyk-Kojiro, K Ma, W Mousigian, C Porreca, F Producer: 19950113 In: Journal of medicinal chemistry vol. 37 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	12.	Variation of pKa in the N-terminal tyrosine side chain in octapeptide analogs of tendamistat influences alpha-amylase inhibition. [electronic resource] by Heyl, D L Sethi, B Rogalski, A Bowen, C E Lawrence, M Beitler, L Harning, E Hancer, A Sreekumar, S Fernandes, S Producer: 20071011 In: Protein and peptide letters vol. 14 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	13.	Structure-activity and conformational studies of a series of modified C-terminal hexapeptide neurotensin analogues. [electronic resource] by Heyl, D L Sefler, A M He, J X Sawyer, T K Wustrow, D J Akunne, H C Davis, M D Pugsley, T A Heffner, T G Corbin, A E Producer: 19950216 In: International journal of peptide and protein research vol. 44 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)