Om Prakash, Ph.D., Professor
Director of NMR Facility
Undergraduate Advisor
Complete publications list
2020s | 2010s | 2000s | 1990s | 1980s | 1970s | Book chapters and monographs
2020s
Mishra, N., Herrera, A., Geisbrecht, B., and Prakash, O. (2023) Total non-proline backbone resonance assignments of the S. aureus extracellular adherence protein EapH1, Biomolecular NMR Assign 17 (in press).
Mishra, N., Herdendorf, T., Prakash, O., and Geisbrecht, B. (2023) Simultaneous inhibition of two neutrophil serine proteases by the S. aureus innate immune evasion protein EapH2. J. Bio. Chem. (in press).
Dembele, H., Mating, M., Singh, R., Fatehi, S., Herrera, A., Park, Y., and Prakash, O. (2022) Ecdysis Triggering Hormone peptide in the African malaria mosquito Anopheles gambiae: The Peptide Structure for Receptor Activation. Insect Science 29: 1309-1317. PMID: 35020973
Schrag, L. G., Liu, X., Thevarajan, I., Prakash, O., Zolkiewski, M., Chen, J., (2021) Cancer-associated mutations perturb the structure and interactions of the intrinsically disordered p53 transactivation domain. J. Mol. Bio. 433: 167048-167067. PMID: 33984364
Pal, I., Mishra, N.,Herrera, A., Dubey, A., Arthanari, H., Geisbrecht, B., and Prakash, O. (2021) 1H, 15N, and 13C Backbone Assignments of the C4b- Binding Region from the S. aureus Extracellular Adherence Protein Biomolecular NMR Assign 15(1): 183-186, PMID:33423171
Velazhahan, V., Glaza, P., Herrera, A., Prakash, O., Zolkiewski, M., Geisbrecht, B., and Schrick, K. (2020) Dietary flavonoids fisetin binds human SUMO1 and blocks sumoylation of p53. PLOS ONE 15 (6): e0234468, PMID: 32530958
2010s
Schrag, L., Cao, X., Dembele, H., Liu, X., Al Souhail, Q., Kanost, M., Chen, J., Jiang, H., and Prakash, O. (2019) Expression and Characterization of Manduca sexta Stress Responsive Peptide-1; an Inducer of Anrtimicrobial Peptide Synthesis. Biochemistry and Molecular Biology 4(3): 42-52.
Herrera, A., Dubey, A., Geisbrecht, B., Arthanari, H., and Prakash, O. (2019) Backbone resonance assignments of innate immune evasion protein EapH2 from the S. aureus. Biomolecular NMR Assign 13:219-222. PMID: 30729401
Herrera, A., Ploscariu, N., Geisbrecht, B., and Prakash, O. (2018) 1H, 15N, and 13C resonance assignments of the third domain from the S. aureus innate immune evasion protein Eap. Biomolecular NMR Assign 12:175-178. PMID: 29372458
Jong, N., Ploscariu, N., Ramyar, K., Garcia, B., Herrera, A., Prakash, O., Katz, B., Leidal K., Nauseef, W., Kessel, K., Strijp, J., and Geisbrecht, B. (2018) A Structurally Dynamic N-terminal Region Drives Function of the Staphylococcal Peroxidase Inhibitor (SPIN), J. Biol. Chem. 293: 2260-2271.
Ploscariu, N., Herrera, A., Jayanthi, S. Kumar, T.K.S., Geisbrecht, B., and Prakash, O. (2017) Backbone and side-chain 1H, 15N, and 13C resonance assignments of a novel Staphylococcal inhibitor of Myeloperoxidase, Biomolecular NMR Assign 11: 285-288. PMID: 28815423.
Schrag, L.,Cao, X., Herrera, A., Wang, Y., Jiang, H., and Prakash, O. (2017) Solution structure and expression profile of an insect cytokine: Manduca sexta stress response peptide-2. Protein and Peptide Letters 24(1):3-11.
Herrera, A.; Tomich, J., and Prakash, O. (2016) Membrane Interacting Peptides: A Review. Current Protein and Peptide Science 17(8):827-841.
Woehl, J., Takahashi, D., Herrera, A., Geisbrecht, B. and Prakash, O. (2016) 1H, 15N, and 13C resonance assignments of Extracellular Adherence Protein Domain 4. Biomoecular NMR Assign. 10(2):301-305.
Sukthankar P, Whitaker SK, Garcia M, Herrera A, Boatwright M, Prakash O, and Tomich JM. (2015) Thermally Induced Conformational Transitions in Nascent Branched Amphiphilic Peptide Capsules. Langmuir 31(10):2946-55
Takahashi, D., Hiromasa, Y., Kim, Y., Anbanandam, A., Yao, X., Chang, KO., and Prakash, O. (2013). Structural and dynamics characterization of norovirus protease. Protein science 22(3):347-357.
Huang, H., Herrera, A., Luo, Z., Sun, X., and Prakash, O. (2012) Structural transformation and physical properties of a hydrogel forming peptide studied by NMR, TEM and dynamic rheomter. Biophysical Journal, 103(5):979-988.
Chang, A., Takahashi, D., Prakash, O., and Kim, Y. (2012) Characterization and inhibition of norovirus proteases of genogroups I and II using a fluorescence resonance energy transfer assay. Virology, 423(2):125-133.
Takahashi, D., Kim, Y., Chang, K., Anbanandam, A., and Prakash, O. (2012) Backbone and side-chain 1H, 15N, and 13C resonance assignments of Norwalk virus protease. Biomol. NMR Assign. 6(1):19-21.
Takahashi, D., Yamashita, S., Prakash, O., and Nishimoto, E. (2011) Rotational Diffusion Analysis of PEG-Induced Protein Interactions. J. of Phys. Chem. B. 115(41):11786-11792.
Bai, Y., Shi, Y., Herrera, AI., and Prakash, O. (2011) Study of octenyl succinic anhydride modified waxy maize starch by nuclear magnetic resonance spectroscopy. Carbohydrate Polymers 83(2):407-413.
Shera, JN., Takahashi, D., Herrera, A., Prakash, O., and Sun, X. (2010) Morphology and Structural Properties of pH-Responsive Amphiphilic Peptides. Journal of Nanoscience and Nanotechnology 10(12):7981-7987.
Takahashi, D., Shukla, SK., Prakash, O., and Zhang, G. (2010) Structural Determinants of Host Defense Peptides for Antimicrobial Activity and Target Cell Selectivity. Biochimie 92(9):1236-1241.
Sang, Y., Seib, P., Herrera, A., Prakash, O., and Shi, Y. (2010) Effects of Alkaline Treatment on Structure of Phosphorylated Wheat Starch and its Digestibility. Food Chemistry 118(2):323-327.
Herrera, AI., Al-Rawi, A., Cook, GA., Gao, J., Iwamoto, T., Prakash, O., Tomich, JM., and Chen, J. (2010) Introduction of a C-Terminal Tryptophan in a Pore-Forming Peptide: A Structure/Activity Study. Proteins: Structure, Function, and Bioinformatics 78(10):2238-2250.
Lauer, J., Banerjee, D., Shanks, D., Dai, H., Gong, YX., Prakash, O., and Takemoto, DJ. (2010) NMR structure/Function Relationship of Peptide Corresponding to the C1B1 region of PKCγ. Protein & Peptide Letters 17(1):1-10.
2000s
Xiao, Y., Herrera, A., Soulages, JL., Bommineni, Y., Prakash, O., and Zhang, G. (2009) The central kink region of an α-helical host defense peptide, is critically involved in bacterial killing and endotoxin neutralization. Journal of Innate Immunity, 1(3):256-280.
Huang, R., Zhiqiang, L., Dai, H., VanderValde, D., Prakash, O., and Jiang, H. (2007) The solution structure of clip domains from Manduca sexta prophenoloxidase activating proteinase-2. Biochemistry 46(41):11431-11439.
Lin, D., Shanks, D., Prakash, O., and Takemoto, DJ. (2007) Protein Kinase C gamma mutations in the C1B Domain Cause Caspase-3 apoptosis in Lens Epithelial Cells through Gap Junctions. Experimental Eye Research, 85(1):113-122.
Bommineni, Y., Dai, H., Gong, Y., Soulages, JL., Frenando, S., DeSilva, U., Prakash, O., and Zhang, G. (2007) Fowlicidine-3 is an a-helical cationic host defense peptide with potent antibacterial and lipopolysccharide-neutralizing activities. FEBS Journal, 274(2):418-428
Sang, Y., Prakash, O., and Seib, P. (2007) Characterization of Phosphorylated Cross-Linked Resistant Starch by 31P Nuclear Magnetic Resonance Spectroscopy. Carbohydrate Polymers, 67(2):201-212.
Xiao, Y., Dai, H., Bommineni, YR., Soulages, JL., Gong, YX., Prakash, O., and Zhang, G. (2006) Structure-Activity Relationships of Fowlicidin-1, a Cathelicidin Antimicrobial Peptide in Chicken. FEBS Journal, 273(12):2581-2593.
Xiao, Y., Cai, Y., Soulages, JL., Prakash, O., Gilliland, SE., and Zhang, G. (2006) Identification and functional characterization of three chicken cathelicidins with potent antimicrobial activity. J. Bio. Chem., 281(5):2858-2867.
Cook, GA., Pajewski, R., Aburi, M., Smith, PE., Prakash, O., Tomich, JM., and Gokel, GW.(2006) NMR Structure and dynamic studies of an anion binding, channel-forming heptapeptide. J. Am. Chem. Soc., 128(5):1633-1638.
Sang, Y., Ortega, MT., Blecha, F., Prakash, O., and Melgarejo, T. (2005) Molecular Cloning and Characterization of Three beta-Defensins from Canine Testes. Infection Immunity 73(5):2611-2620
Dhanasekaran, M., Baures, PW., VanCompernolle, S., Todd, S., and Prakash, O. (2003) Structural characterization of peptide fragments from hCD81-LEL. Journal of Peptide Research 61(2):80-89
Broughman, JR., Shank, LP., Prakash, O., Schultz, BD., Iwamoto, T., Tomich, JM., and Mitchell, K. (2002) Structural Implications of Placing Cationic Residues at either the NH2- or COOH-Terminus in a Pore-forming Synthetic Peptide. The Journal of Membrane Biology, 190(2):93-103
Yu, X-Q., Prakash, O., and Kanost, MR. (2001) Insect ENF Family Peptides With Diverse Biological Activities Display Similar Core Structures in Solution. Medicinal Chemistry Research 10(7/8):493-501
Tilley, KA., Benjamen, RE., Bagorogoza, KE., Okot-Kotber, BM., Prakash, O., and Kwen, H. (2001) Tyrosine Cross Links: Molecular Basis of Gluten Structure and Function. Journal of Agricultural and Food Chemistry 49(5):2627-2632
Kirnarsky, L., Prakash, O., Vogen, SM., Mitsuharu, N., Hollingsworth, MA., and Sherman, S. (2000) Structural effects of O-glycosylation on a 15-residue peptide from the mucin (MUC1) core protein. Biochemistry 39(39):12076-12082
1990s
Yu, X-Q., Prakash, O., and Kanost, MR. (1999) Structure of a paralytic peptide from an insect, Manduca sexta. Journal of Peptide Research 54:256-261
Vogen, SM., Prakash, O., Kirnarsky, L., Sanderson, SD., and Sherman, SA. (1999) Determination of structural elements related to the biological activities of a potent decapeptide agonist of human C5a anaphylatoxin. Journal of Peptide Research 54:74-84.
Kirnarsky, L., Prakash, O., Vogen, SM., Ikematsu,Y., Johnson-Kaufman, N., Sanderson, SD., Clausen, H., Hollingsworth, MA., and Sherman, S. (1999) Structural analysis of peptide substrates for O-glycosylation. Peptides: Frontiers of Peptide Science. Eds. James P. Tam and Pravin T.P. Kaumaya, Kluwer Academic publisher, 713-714.
Rajashekar, CB., Zhou, H., Marcum, KB., and Prakash, O. (1999) Glycine betain accumulation and induction of cold tolerance in strawberry (Fragaria X ananassa Duch.) plants. Plant Science 148:175-183.
Sherman, S., Kirnarsky, L., Prakash, O., Rogers, HM., Silva, R.A.G.D., Keiderling, TA., Smith, D., Perini, F., and Ruddon, RW. (1999) In search of the earliest events of hCGb folding: structural studies of the 60-87 peptide fragment. Peptides: Frontiers of Peptide Science. Eds. James P. Tam and Pravin T.P. Kaumaya, Kluwer Academic publisher, 416-417.
Vogen, SM., Prakash, O., Kirnarsky, L., Sanderson, SD., and Sherman, SA. (1998) NMR analysis of a potent decapeptide agonist of human C5a anaphylatoxin. Journal of Peptide Research 51:226-234.
Liu, J., Gong, Y., Prakash, O., Lee, I., Huang, J., and Krishnamoorthi, R. (1998) NMR studiesof internal dynamics of serine proteinase protein inhibitors: Binding region mobilities of intact and reactive-site hydrolyzed Cucurbita maxima trypsin inhibitor (CMTI-III) of the Squash family and comparision with those of counterparts of CMTI-V of the potatoI family. Protein Science 7:132-141.
Groutas, WC., Kuang, R., Venkataraman, R., Epp, JB., Ruan, S., and Prakash, O. (1997) Structure-based design of a general class of mechanism-based inhibitors of the serine proteinases employing a novel amino acid derived heterocyclic scaffold. Biochemistry 36:4739-4750.
Groutas, WC., Epp, JB., Venkataraman, R., Kuang, R., Truong, TM., McClenahan, JJ., and Prakash, O., (1996) Design, synthesis and in vitro inhibitory activity toward human leukocyte elastase, Cathepsin G proteinase 3 of saccharine-derived sulfones and congeners. Biooraganic and Medicinal Chemistry 4:1393-1400.
Liu, J., Prakash, O., Huang, Y., Wen, L., Wen, J., Huang, JK., and Krishnamoorthi, R. (1996) Internal mobility of reactive-site hydrolyzed recombinant Cucurbita maxima trypsin inhibitor-V characterized by NMR spectroscopy: Evidence for differential stabilization of newly formed C- and N-termini. Biochemistry 35:12503-12510.
Xu, R., Huang, X., Morgan, TD., Prakash, O., Kramer, KJ., and Hawley, MD. (1996) Characterization of products from the reactions of N-acetyldopamine quinone with N-acetylhistidine. Archives of Biochem. Biophys. 329:56-64.
Cai, M., Huang, Y., Prakash, O., Wen, L., Dunkelbarger, SP., Huang, JK., Liu, J., and Krishnamoorthi, R. (1996) Differential modulation of binding loop flexibility and stability by Arg50 and Arg52 in Cucurbita maxima trypsin inhibitor-V deduced by trypsin-catalyzed hydrolysis and NMR spectroscopy. Biochemistry 35:4784-4794.
Vogen, S., Prakash, O., Kirnarsky, L., Sherman, S., Ember, J., Finch, AM., Taylor, SM., and Sanderson, SD. (1996) Conformational requirements for potent decapeptide agonists of human C5a anaphylatoxin. Peptide: Chemistry, Structure, and Biology, Eds. P.T.P. Kaumaya & R.S. Hodges, Mayflower Scientific, Ltd., Kingswinford, England, 503-504.
Liu, J., Prakash, O., Cai, M., Gong, Y., Wen, L., Wen, JP., and Krishnamoorthi, R. (1996) Solution structure and backbone dynamics of recombinant Cucurbita maxima trypsin inhibitor-V determined by NMR spectroscopy. Biochemistry 35:1516-1524.
Sanderson, SD., Kirnarsky, L., Sherman, SA., Vogen, SA., Prakash, O., Ember, JA., Finch, AM., and Taylor, SM. (1995) Decapeptide agonists of human C5a: The relationship between conformation and neutrophil response. J. Med. Chem. 38:3669-3675.
Cai, M., Gong, Y., Prakash, O., and Krishnamoorthi, R. (1995) Reactive-site Cucurbita maxima trypsin inhibitor-V: Function, thermodynamics stability and NMR solution structure. Biochemistry 34:12087-12094.
Cai, M., Huang, Y., Prakash, O., Wen, L., Han, SK., and Krishnamoorthi, R., (1995) Solution conformations and dynamics of arginine side-chains in a protein deduced from and three-bond N15 - H1 coupling constants. J. Magn. Reson. 108:189-191.
Kawamoto, T., Prakash, O., Ostrander, RL., Rheingold, AL., and Borovic, AS. (1995) Metallohelices: Effects of Weak Interactions on Helical Morphology. Inorg. Chem. 34:4294-4295.
Gonnella, NC., Zhang, X., Jin, Y., Prakash, O., Paris, CG., Kolossvary, I., Guida, WC., Bohacek, RS., Vlattas, I., and Sytwu, T. (1994) Solvent effects on the conformation of cyclo(-D-Trp-D-Asp-Pro-D-Val-Leu): An NMR spectroscopy and molecular modelling study. Int. J. of Peptide Protein Res. 43:454-462.
Nikiforovich, GV., Prakash, O., Gehrig, C., and Hruby, VJ. (1993) Solution conformation of the peptide backbone for DPDPE and its b-MePhe4-substituted analogs. Int. J. of Peptide Protein Res. 41:347-361.
Nikiforovich, GV., Prakash, O., Gehrig, C., and Hruby, VJ. (1993) Conformations of the dermenkephalin backbone in DMSO solution by a new approach to the solution conformations of flexible peptides. J. Am. Chem. Soc. 115:3399-3406.
Kover, KE., Prakash, O., and Hruby, VJ. (1993) Z-Filtered heteronuclear coupled HSQC-TOCSY experiments as a means for measuring long range heteronuclear coupling constant. J. Magn. Reson. 103:92-96.
Kover, KE., Prakash, O., and Hruby, VJ. (1993) Improved 2D inverse proton detected C, H-correlation NMR techniques for the total assignment of carbon resonances of a highly delta opioid receptor agonist peptide. Magn. Reson. Chem. 31:231-237.
Kover, KE., Prakash, O., and Hruby, VJ. (1992) Efficient purging sequence for proton detected heteronuclear shift correlation experiments. J. Magn. Reson. 99:426-432.
Gehrig, CA., Toth, G., Prakash, O., and Hruby, VJ. (1991) ?-Me-Phe Containing enkephalin analogues with high selectivity for the delta opioid receptor. Peptide Chemistry 261-264.
Nikiforovich, GV., Hruby, JV., Prakash, O., and Gehrig, CA. (1991) Topographical requirements for delta selective opioid peptides. Biopolymers 31:941-955.
Agarwal, S., Hussaini, FA., Prakash, O., Roy, R., and Shoeb, A. (1990) Spasmolytic diterpenes from "Pogostemon-Auricularis". Indian J. Chem. 29B:184-186.
Prakash, O., Roy, R., Kapil, RS., and Vishwakarma, RA. (1990) Two-dimensional NMR studies of arteether. Indian J. Chem. 29B:103-107.
1980s
Prakash, O., Roy, R., Bhakuni, DS, Wahidulla, S., and Kamat, SY. (1989) 2D-NMR Studies of a novel steroid from the red alga Acantophora spicifera. J. Natural Products, 52:686-692.
Hruby, VJ., Toth, G., Prakash, O., Davis, P., and Burks, TF. (1988) Cyclic enkephalins which are optically pure isomers of (?Me-p-NO2 Phe )DPDPE possess extraordinary ?-opioid receptor selectivity. Peptides 616-618.
Prakash, O., Roy, R., Pratap, R., and Bhakuni, DS. (1988) Steric influence on high resolution H-1 NMR spectra of cinchona alkaloids. Indian J. Chem. 27B:950-952.
Prakash, O., Roy, R., Jain, S., and Bhakuni, DS. (1988) The complete assignment of the H-1 and C-13 NMR spectra of isococculidine. J. Natural Products 51:603-605.
Prakash, O., Roy, R., and Kulshrestha, DK. (1988) Two-dimensional NMR analysis of himachalol and its correlation with other sesquiterpenoids of himachalane series. Magn. Reson. Chem., 26:47-50.
Prakash, O., Roy, R., Tandon, JS., and Dhar, MM. (1988) Carbon 13 and Proton Two-dimensional NMR analysis of diterpenoids of Coleus forskohlii. Magn. Reson. Chem., 26:117-119.
Agarwal, S., Prakash, O., Roy, R., Hussaini, FA., and Shoeb, A. (1988) Novel cleistenthane diterpenoid acids from pogostemon auricularis. J. Natural Products 51:212-216.
Pandey, CB., Prakash, O., Dixit, DK., and Anand, N. (1987) 2-(2-Hydroxynapthalen-2yl)-2-(2,4-dioxo-naptho 1,2b-3,4-dihydro pyran-3-yl) ethylidine: A minor product formed during cyclisation of 2-acetyl napthyl-1 methyl carbonate with potassium carbonate. Indian J. Chem. 26B:1067-1068.
Singh, AK., Lal, K., Prakash, O., Agarwal, AK., and Ray, S. (1987) Facil formation of 9,11-seco estrane-11,17-oxide from corresponding 9.11-seco estranes. Indian J. Chem. 26B:839-842.
Prakash, O., Roy, R., Agarwal, S., Hussaini, FA., and Shoeb, A., (1987) Stereostructure of a cleistanthane diterpenoid using Two-dimensional NMR spectroscopy. Tetrahedron Letters 28:685-686.
Prakash, O., Roy, R., Garg, HS., and Bhakuni, DS. (1987) C-13 NMR studies of friedelane series of triterpenoids and conformation of D and E rings in friedelan-7one, Magn. Reson. Chem. 25:39-41.
Prakash, O., Roy, R., and Dhar, MM. (1986) A nuclear magnetic resonance study of coleonol. J. Chem. Soc. Perkin 2:1779-1783.
Sharma, I., Kole, PL., Agarwal, AK., Prakash, O., and Ray, S. (1986) Synthesis and biological activity of 6-aryl estradiol derivatives. Indian J. Chem. 25B:634-637.
Bose, AK., Prakash, O., Hu, GY., and Edasry, J. (1983) Novel use of crown ethers in chemical ionization mass spectroscopy. J. Org. Chem. 48:1780-1782.
Dayal, V., Colman, RW., Prakash, O., Bose, AK., and Sinha, AK. (1983) Cyclic AMP induces synthesis of prostaglandin E1 in platelets. Biochem. Biophys. Acta 759:129-136.
Bhatia, SK., Prakash, O., and Kapil, RS. (1983) Biosynthesis of codeine using CMR spectroscopy. Indian J. Chem. 20B:701-703.
1970s
Mahesh, VK., Gupta, RS., Sharma, R., and Prakash, O. (1979) Identification of an ?-dipyrane derivative in the synthesis of dehydroactic acid. Ind. J. Chem. 17B:513.
Prakash, O., Bhakuni, DS., and Kapil, RS., (1979) Biosynthesis of coclaurine. J. Chem. Soc. Perkin 1:1515-1518.
Prakash, O., Bhakuni, DS., Kapil, RS., Rao, GSR., and Ravindranath, B. (1979) Diterpenoids of Roylea calycina (Roxb.). J. Chem. Soc. Perkin 1:1305-1308.
Prakash, O., Bhakuni DS., and Kapil, RS. (1978) Biosynthesis of Isocorydine (1,2.10-Trimethoxy-6a-aporphine-11-ol). J. Chem. Soc. Perkin 1:622-624.
Book chapters and monographs
Schrag, L. G., Herrera, A. I., Cao, X., Prakash, O., & Jiang, H. (2017). Structure and Function of Stress-Responsive Peptides in Insects. Chapter 15 in Peptide-based Drug Discovery: Challenges and New Therapeutics, edited by Ved Prakash, Published by Royal Society of Chemistry, UK, ISBN 978-1-78262-732-6
Zhang, G., Prakash, O., (2010) NMR Insights into Structure-Activity Relationships of Fowlicidins, Chapter 10 in Future Directions of NMR edited by C. L. Khetrapal, Anil Kumar and K.V. Ramanathan, published by Springer-Verlag-India, ISBN: 8184899947.
Prakash, O. and Gulati, A. (1995) Structure-activity relationship of endothelin, In: Endothelin: Role in health and disease, Ed. E. S. Weitenberg, Harwood Academic Publishers, Amsterdam, The Netherlands, 35-51.
Hruby, J. V., Prakash, O., Kazmierski, W. M., Gehrig, C., and Matsunaga, T. O. (1991) Conformational analysis of opioid receptor-selective peptides using NMR and theoretical calculations, Emerging Technologies on Drug Abuse Research, Donna Selig, eds., NIDA Research Monograph 112, 198-217.
Hruby, V. J., Kazmierski, W. M., Matsunaga, T. O., Nikiforovich, G. V., Prakash, O. (1991) Topographical considerations in the design of potent, receptor selective peptide hormones and neuro-transmitters, Expanding Frontiers in Polypeptide and Protein Structural Research, V.Renugopalakrishnan, P.R.Carey, S.G.Yuang, A.Storer and I.C.P.Smith eds., ESCOM Publ. Leiden, The Netherlands.
Gehrig, C., Prakash, O., Toth, G., and Hruby, J. V. (1990) Design and synthesis of opioid receptor selective enkephalin analogues, Problems of Drug Dependence, Louis Harris, ed. NIDIA Research Monograph, 105, 378-379.