1.
Biopolymers
; 32(2): 189-95, 1992 Feb.
Article
in English
| MEDLINE
| ID: mdl-1637993
ABSTRACT
The ir amide bands of the triple-helical polytripeptides and collagens upon hydration of films are investigated. On the basis of our assignment of the amide I components, the formation of hydrogen bonds between the peptide backbone and structural water is studied. The C1O1--HOH hydrogen bonds are found more ordered than the C3O3--HOH hydrogen bonds. The specific incorporation of water in the triple helix is followed by multistep conformational changes and by increasing of the interpeptide hydrogen-bond strength. The formation of the polypeptide hydrate structure depending on the amino acid composition and the chain length is examined.
Subject(s)
Collagen/chemistry , Peptides/chemistry , Water/chemistry , Amino Acid Sequence , Hydrogen Bonding , Molecular Sequence Data , Protein Conformation
2.
Biopolymers
; 24(8): 1449-78, 1985 Aug.
Article
in English
| MEDLINE
| ID: mdl-4041546
Subject(s)
Collagen , Peptides , Amides , Animals , Fishes , Protein Conformation , Rats , Skin , Spectrophotometry, Infrared
3.
Biopolymers
; 23(1): 5-22, 1984 Jan.
Article
in English
| MEDLINE
| ID: mdl-6696977
Subject(s)
Pituitary Hormones, Anterior , Animals , Cattle , Circular Dichroism , Protein Conformation , Swine
4.
Biochem Biophys Res Commun
; 67(4): 1378-83, 1975 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-1201092