Environmental effects on a prion's helix II domain: copper(II) and membrane interactions with PrP180-193 and its analogues (744 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2005 Dec 23; 12(2): 537-547.
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Paper type: Journal Article, Research Support, Non-U. S. Gov'T,
Impact factor: 4.907, 5-year impact factor: 5.608
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-29544452166&partnerID=40&md5=15ed58326ff17a1c8d13175016c22117
Keywords: Copper, Helical Structures, Membranes, Peptides, Prions, Conformations, Diseases, Mathematical Models, Pathology, Proteins, Toxicity, Artificial Membranes, Metal Interaction, Copper Compounds, Peptide Fragment, Prion Protein, Prion Protein (180 193), Prion Protein (180-193), Amino Acid Sequence, Animal, Article, Binding Site, Cell Membrane, Chemistry, Human, Molecular Genetics, Protein Secondary Structure, Protein Tertiary Structure, Spectroscopy, Molecular Sequence Data, Protein Structure, Prpc Proteins, Spectrum Analysis,
Affiliations:
*** IBB - CNR ***
Università di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy
Istituto CNR di Biostrutture e Bioimmagini, Sezione di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Univcrsità di Padova, Dipartimento di Chimica Inorganica, Metallorganica Ed. Analitica, Via F. Marzolo 1, 35131 Padova, Italy
Università di Sassari, Dipartimento di Chimica, via Vienna 2, 07100 Sassari, Italy
University of Debreccn, Department of Inorganic and Analytical Chemistry, 4010 Debrecen, Hungary
Istituto CNR di Chimica Biomolecolare, Sezione di Sassari, Traversa La Crucca 3, 07040 Li Punti (SS), Italy
Universit di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy
Univcrsit di Padova, Dipartimento di Chimica Inorganica, Metallorganica Ed. Analitica, Via F. Marzolo 1, 35131 Padova, Italy
Universit di Sassari, Dipartimento di Chimica, via Vienna 2, 07100 Sassari, Italy
Universita di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.,
References:
Not available.
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2005 Dec 23; 12(2): 537-547.
Export to BibTeX Export to EndNote
Paper type: Journal Article, Research Support, Non-U. S. Gov'T,
Impact factor: 4.907, 5-year impact factor: 5.608
Url: http://www.scopus.com/inward/record.url?eid=2-s2.0-29544452166&partnerID=40&md5=15ed58326ff17a1c8d13175016c22117
Keywords: Copper, Helical Structures, Membranes, Peptides, Prions, Conformations, Diseases, Mathematical Models, Pathology, Proteins, Toxicity, Artificial Membranes, Metal Interaction, Copper Compounds, Peptide Fragment, Prion Protein, Prion Protein (180 193), Prion Protein (180-193), Amino Acid Sequence, Animal, Article, Binding Site, Cell Membrane, Chemistry, Human, Molecular Genetics, Protein Secondary Structure, Protein Tertiary Structure, Spectroscopy, Molecular Sequence Data, Protein Structure, Prpc Proteins, Spectrum Analysis,
Affiliations:
*** IBB - CNR ***
Università di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy
Istituto CNR di Biostrutture e Bioimmagini, Sezione di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Univcrsità di Padova, Dipartimento di Chimica Inorganica, Metallorganica Ed. Analitica, Via F. Marzolo 1, 35131 Padova, Italy
Università di Sassari, Dipartimento di Chimica, via Vienna 2, 07100 Sassari, Italy
University of Debreccn, Department of Inorganic and Analytical Chemistry, 4010 Debrecen, Hungary
Istituto CNR di Chimica Biomolecolare, Sezione di Sassari, Traversa La Crucca 3, 07040 Li Punti (SS), Italy
Universit di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy
Univcrsit di Padova, Dipartimento di Chimica Inorganica, Metallorganica Ed. Analitica, Via F. Marzolo 1, 35131 Padova, Italy
Universit di Sassari, Dipartimento di Chimica, via Vienna 2, 07100 Sassari, Italy
Universita di Catania, Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.,
References:
Not available.
Environmental effects on a prion's helix II domain: copper(II) and membrane interactions with PrP180-193 and its analogues
An abnormal interaction between copper and the prion protein is believed to play a pivotal role in the pathogenesis of prion diseases. Copper binding has been mainly attributed to the N-terminal domain of the prion protein, but this hypothesis has recently been challenged in some papers which suggest that the C-terminal domain might also compete for metal anchoring. In particular, the segment corresponding to the helix II region of the prion protein, namely PrP180-193, has been shown both to bind copper and to exhibit a copper-enhanced cytotoxicity, as well as to interact with artificial membranes. The present work is aimed at extending these results by choosing the most representative model of this domain and by determining its copper affinity. With this aim, the different role played by the electrostatic properties of the C- and N-termini of PrP180-193 (VNITIKQHTVTTTT) in determining its conformational behaviour, copper coordination and ability to perturb model membranes was investigated. Owing to the low solubility of PrP180-193, its copper affinity was evaluated by using the shorter PrPAc184-188NH2 (IKQHT) analogue as a model. ESI-MS, ESR, UV/Vis, and CD measurements were carried out on the copper(II)/PrPAc184-188NH2 and copper(II)/PrP180-193NH2 systems, and showed that PrPAc184-188NH2 is a reliable model for the metal interaction with the helix II domain. The affinity of copper(II) for the helix II fragment is higher than that for the octarepeat and PrP106-126 peptides. Finally, the different ability of PrP180-193 analogues to perturb the DPPC model membrane was assessed by DSC measurements. The possible biological consequences of these findings are also discussed briefly.
An abnormal interaction between copper and the prion protein is believed to play a pivotal role in the pathogenesis of prion diseases. Copper binding has been mainly attributed to the N-terminal domain of the prion protein, but this hypothesis has recently been challenged in some papers which suggest that the C-terminal domain might also compete for metal anchoring. In particular, the segment corresponding to the helix II region of the prion protein, namely PrP180-193, has been shown both to bind copper and to exhibit a copper-enhanced cytotoxicity, as well as to interact with artificial membranes. The present work is aimed at extending these results by choosing the most representative model of this domain and by determining its copper affinity. With this aim, the different role played by the electrostatic properties of the C- and N-termini of PrP180-193 (VNITIKQHTVTTTT) in determining its conformational behaviour, copper coordination and ability to perturb model membranes was investigated. Owing to the low solubility of PrP180-193, its copper affinity was evaluated by using the shorter PrPAc184-188NH2 (IKQHT) analogue as a model. ESI-MS, ESR, UV/Vis, and CD measurements were carried out on the copper(II)/PrPAc184-188NH2 and copper(II)/PrP180-193NH2 systems, and showed that PrPAc184-188NH2 is a reliable model for the metal interaction with the helix II domain. The affinity of copper(II) for the helix II fragment is higher than that for the octarepeat and PrP106-126 peptides. Finally, the different ability of PrP180-193 analogues to perturb the DPPC model membrane was assessed by DSC measurements. The possible biological consequences of these findings are also discussed briefly.
Environmental effects on a prion's helix II domain: copper(II) and membrane interactions with PrP180-193 and its analogues
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Environmental effects on a prion's helix II domain: copper(II) and membrane interactions with PrP180-193 and its analogues
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Impact Factor: 3.063
View Export to BibTeX Export to EndNote
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View Export to BibTeX Export to EndNote
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Impact Factor: 3.205
View Export to BibTeX Export to EndNote
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La Mendola D, Magrì A, Campagna T, Campitiello MA, Raiola L, Isernia C, Hansson O, Bonomo RP, Rizzarelli E
* A doppel alpha-helix peptide fragment mimics the copper(II) interactions with the whole protein (1766 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2010 Jun 1; 16(21): 6212-6223.
Impact Factor: 5.476
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Diana D, Ziaco B, Colombo G, Scarabelli G, Romanelli A, Fedone C, Fattorusso R, D'Andrea LD
* Structural determinants of the unusual helix stability of a de novo engineered vascular endothelial growth factor (VEGF) mimicking peptide (798 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2008; 14(14): 4164-4166.
Impact Factor: 5.454
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Pietropaolo A, Raiola L, Muccioli L, Tiberio G, Zannoni C, Fattorusso R, Isernia C, La Mendola D, Pappalardo G, Rizzarelli E
* An NMR and molecular dynamics investigation of the avian prion hexarepeat conformational features in solution (611 views)
Chem Phys Lett (ISSN: 0009-2614), 2007 Jul 6; 442(1-3): 110-118.
Impact Factor: 2.207
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Papa S, Monti SM, Vitale RM, Bubici C, Jayawardena S, Alvarez K, De Smaele E, Dathan N, Pedone C, Ruvo M, Franzoso G
* Insights Into The Structural Basis Of The Gadd45beta-Mediated Inactivation Of The Jnk Kinase, Mkk7/Jnkk2 (1056 views)
Jbc Papers (ISSN: 0021-9258, 1083-351x, 0021-9258linking), 2007 Jun 29; 282(26): 19029-19041.
Impact Factor: 5.581
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Santoro F, Improta R, Lami A, Bloino J, Barone V
* Effective method to compute Franck-Condon integrals for optical spectra of large molecules in solution (509 views)
J Chem Phys (ISSN: 0021-9606, 0897-690online), 2007 Feb 28; 126(8): 084509-084509.
Impact Factor: 3.044
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Santoro F, Barone V, Gustavsson T, Improta R
* Solvent effect on the singlet excited-state lifetimes of nucleic acid bases: A computational study of 5-fluorouracil and uracil in acetonitrile and water (1599 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2006 Dec 20; 128(50): 16312-16322.
Impact Factor: 7.696
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Alterio V, Vitale RM, Monti SM, Pedone C, Scozzafava A, Cecchi A, De Simone G, Supuran CT
* Carbonic anhydrase inhibitors: X-ray and molecular modeling study for the interaction of a fluorescent antitumor sulfonamide with isozyme II and IX (1083 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2006 Jun 28; 128(25): 8329-8335.
Impact Factor: 7.696
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Di Natale G, Impellizzeri G, Pappalardo G
* Conformational properties of peptide fragments homologous to the 106-114 and 106-126 residues of the human prion protein: a CD and NMR spectroscopic study (666 views)
Org Biomol Chem (ISSN: 1477-0520, 1477-0539, 1477-0539electronic), 2005 Feb 7; 3(3): 490-497.
Impact Factor: 2.547
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Improta R, Antonello S, Formaggio F, Maran F, Rega N, Barone V
* Understanding Electron Transfer across Negatively-Charged Aib Oligopeptides (1282 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2005 Jan 20; 109(2): 1023-1033.
Impact Factor: 4.033
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Calhoun JR, Nastri F, Maglio O, Pavone V, Lombardi A, Degrado WF
* Artificial diiron proteins: From structure to function (899 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2005; 80(2-3): 264-278.
Impact Factor: 2.545
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Farrera-Sinfreu J, Zaccaro L, Vidal D, Salvatella X, Giralt E, Pons M, Albericio F, Royo M
* A New Class of Foldamers Based on cis-γ-Amino-L-proline (944 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2004 May 19; 126(19): 6048-6057.
Impact Factor: 6.903
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Esposito G, Vitagliano L, Costanzo P, Borrelli L, Barone R, Pavone L, Izzo P, Zagari A, Salvatore F
* Human aldolase A natural mutants: relationship between flexibility of the C-terminal region and enzyme function (601 views)
Biochem J (ISSN: 0264-6021, 1470-8728electronic, 0264-6021linking), 2004 May 15; 380: 51-56.
Impact Factor: 4.278
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Merlino A, Vitagliano L, Sica F, Zagari A, Mazzarella L
* Population shift vs induced fit: The case of bovine seminal ribonuclease swapping dimer (596 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2004 Apr 15; 73(6): 689-695.
Impact Factor: 2.863
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Saviano M, Improta R, Benedetti E, Carrozzini B, Cascarano GL, Didierjean C, Toniolo C, Crisma M
* Benzophenone photophore flexibility and proximity: Molecular and crystal-state structure of a Bpa-containing trichogin dodecapeptide analogue (884 views)
Chembiochem (ISSN: 1439-4227, 1439-7633, 1439-7633electronic), 2004 Apr 2; 5(4): 541-544.
Impact Factor: 3.474
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Improta R, Barone V
* Interplay of electronic, environmental, and vibrational effects in determining the hyperfine coupling constants of organic free radicals (510 views)
Chem Rev (ISSN: 0009-2665), 2004 Mar; 104(3): 1231-1253.
Impact Factor: 20.233
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De Capua A, Del Gatto A, Zaccaro L, Saviano G, Carlucci A, Livigni A, Gedressi C, Tancredi T, Pedone C, Saviano M
* A synthetic peptide reproducing the mitochondrial targeting motif of AKAP121: A conformational study (997 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2004; 76(6): 459-466.
Impact Factor: 2.863
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Improta R, Barone V
* Assesing the reliability of density functional methods in the conformational study of polypeptides: The treatment of intraresidue nonbonding interactions (719 views)
J Comput Chem (ISSN: 0192-8651, 1096-987xelectronic), 2004; 25(11): 1333-1341.
Impact Factor: 3.168
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Barone V, Formaggio F, Improta R, Polo F, Maran F
* Electron transfer to and conformational preferences of Aib oligo-peptides (679 views)
Proc Electrochem Soc, 2004; 10: 29-32.
Impact Factor: 0
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Esposito L, Bruno I, Sica F, Raia CA, Giordano A, Rossi M, Mazzarella L, Zagari A
* Crystal structure of a ternary complex of the alcohol dehydrogenase from Sulfolobus solfataricus (1084 views)
Biochemistry (ISSN: 0006-2960, 1520-4995, 1520-4995electronic), 2003 Dec 16; 42(49): 14397-14407.
Impact Factor: 3.922
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Lombardi A, Nastri F, Marasco D, Maglio O, De Sanctis G, Sinibaldi F, Santucci R, Coletta M, Pavone V
* Design of a new mimochrome with unique topology (718 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2003 Nov 21; 9(22): 5643-5654.
Impact Factor: 4.353
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Formaggio F, Crisma M, Toniolo C, Broxterman QB, Kaptein B, Corbier C, Saviano M, Palladino P, Benedetti E
* Cα-Methyl, Cα-n-Propylglycine Homo-oligomers (634 views)
Macromolecules (ISSN: 0024-9297), 2003; 36(21): 8164-8170.
Impact Factor: 3.621
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D'Amore M, Improta R, Barone V
* Conformational behavior and magnetic properties of a nitroxide amino acid derivative in vacuo and in aqueous solution (437 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2003; 107(32): 6264-6269.
Impact Factor: 2.792
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Bonomo RP, Bruno V, Conte E, De Guidi G, La Mendola D, Maccarrone G, Nicoletti F, Rizzarelli E, Sortino S, Vecchio G
* Potentiometric, spectroscopic and antioxidant activity studies of SOD mimics containing carnosine (709 views)
Dalton T (ISSN: 1477-9226, 1477-9234, 1477-9234electronic), 2003; (23): 4406-4415.
Impact Factor: 2.908
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Improta R, Kudin KN, Scuseria GE, Barone V
* Structure and magnetic properties of nitroxide molecular crystals by density functional calculations employing periodic boundary conditions (590 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2002 Jan 9; 124(1): 113-120.
Impact Factor: 6.201
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Grasso D, Milardi D, La Rosa C, Rizzarelli E
* DSC study of the interaction of the prion peptide PrP106-126 with artificial membranes (586 views)
New J Chem (ISSN: 1144-0546), 2001; 25(12): 1543-1548.
Impact Factor: 2.44
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Zanotti G, Falcigno L, Saviano M, D'Auria G, Bruno BM, Campanile T, Paolillo L
* Solid state and solution conformation of [Ala7]-phalloidin: A synthetic phallotoxin analogue (890 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2001; 7(7): 1479-1485.
Impact Factor: 4.614
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Carotenuto L, Berisio R, Piccolo C, Vitagliano L, Zagari A
* Video observation of protein crystal growth in the advanced protein crystallization facility aboard the space shuttle mission STS-95 (850 views)
J Cryst Growth (ISSN: 0022-0248), 2001; 232(1-4): 481-488.
Impact Factor: 1.283
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Nastri F, Lombardi A, D'Andrea LD, Sanseverino M, Maglio O, Pavone V
Miniaturized hemoproteins (787 views)
Biopolymers (ISSN: 0006-3525print, 0006-3525linking, 1097-0282electronic), 1998; 47(1): 5-22.
Impact Factor: 2.086
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Impellizzeri G, Pappalardo G, Purrello R, Rizzarelli E, Santoro AM
Synthesis, spectroscopic characterisation, and metal ion interaction of a new α-helical peptide (932 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 1998; 4(9): 1791-1798.
Impact Factor: 5.153
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Crisma M, Formaggio F, Valle G, Toniolo C, Saviano M, Iacovino R, Zaccaro L, Benedetti E
Experimental evidence at atomic resolution for intramolecular N- H···π (phenyl) interactions in a family of amino acid derivatives (929 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1997; 42(1): 1-6.
Impact Factor: 2.425
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Nastri F, Lombardi A, Morelli G, Maglio O, D'Auria G, Pedone C, Pavone V
Hemoprotein models based on a covalent helix-heme-helix sandwich: 1. Design, synthesis, and characterization (1081 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 1997; 3(3): 340-349.
Impact Factor: 4.828
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D'Auria G, Maglio O, Nastri F, Lombardi A, Mazzeo M, Morelli G, Paolillo L, Pedone C, Pavone V
Hemoprotein models based on a covalent helix-heme-helix sandwich: 2. Structural characterization of Co(III) mimochrome I Δ and Λ isomers (807 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 1997; 3(3): 350-362.
Impact Factor: 4.828
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Lombardi A, Saviano M, Nastri F, Maglio O, Mazzeo M, Pedone C, Isernia C, Pavone V
Unusual conformational preferences of β-alanine containing cyclic peptides. VII (709 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1996 Jun; 38(6): 683-691.
Impact Factor: 2.425
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Bustamante C, Gurrieri S, Pasternack RF, Purrello R, Rizzarelli E
Interaction of water-soluble porphyrins with single- and double-stranded polyribonucleotides (629 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1994 Sep; 34(8): 1099-1104.
Impact Factor: 2.425
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Zanotti G, Maione A, Rossi F, Saviano M, Pedone C, Tancredi T
BIOACTIVE PEPTIDES - CONFORMATIONAL STUDY OF A CYSTINYL CYCLOHEPTAPEPTIDE IN ITS FREE AND CALCIUM COMPLEXED FORMS (864 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1993 Jul; 33(7): 1083-1091.
Impact Factor: 2.425
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Di Blasio B, Lombardi A, D'Auria G, Saviano M, Isernia C, Maglio O, Paolillo L, Pedone C, Pavone V
Beta-Alanine Containing Peptides: Gamma-Turns In Cyclotetrapeptides (872 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1993 Apr; 31(10): 621-631.
Impact Factor: 2.425
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Tancredi T, Zanotti G, Rossi F, Benedetti E, Pedone C, Temussi PA
Comparison of the conformations of cyclolinopeptide A in the solid state and in solution (676 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1989 Jan; 28(1): 513-523.
Impact Factor: 2.425
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Capasso S, Mazzarella L, Sica F, Zagari A
Solid-state conformations of aminosuccinyl peptides: crystal structure of tert-butyloxycarbonyl-L-leucyl-L-aminosuccinyl-L-phenylalaninami de (890 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1989; 28(1): 139-147.
Impact Factor: 2.425
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44 Records (42 excluding Abstracts).
Total impact factor: 176.189 (168.067 excluding Abstracts).
Total 5 year impact factor: 231.297 (223.176 excluding Abstracts).
Total impact factor: 176.189 (168.067 excluding Abstracts).
Total 5 year impact factor: 231.297 (223.176 excluding Abstracts).
744 views. Last view on Thursday 24 April 2025, 6:26:18
ibb.cnr.it
