Skin, collagen

Fig. 6. The far ultraviolet rotatory dispersion of native calf skin collagen - in 0.01 molar acetic solution. The ultraviolet rotatory dispersion of the same preparation of calf skin collagen heated at 50 °C for 30 min, coded to 25 °C and measured immediately, O-O-O. Concentrations were between 0.0076 and 0.076%. Data from Blout et al.18a)...

Fig. 37. Dependence of the thermodynamic parameters AH and AS of triple-helix formation on the imino acid content of the peptides (obtained by cleavage of calf skin-type I collagene with cyanogene and subequent isolation by column chromatrography)3) and of the native neutral salt-soluble skin collagene of various animals. The entropy values are denoted by dotted lines...

This order might provide the genetic code for the formation of, say, a protein in the skin collagen of a human being. At the same location in the DNA molecule of another human the order of the bases may be only slightly different, such as... 

Soluble Calf Skin Collagen (Worthington). (V7 mg/ml in Tris buffer,... 

Figure 2. Adsorption of soluble calf skin collagen, o Collagen layer over entire surface A Collagen layer removed from measuring bulb...

Figure 3. Adsorption of soluble calf skin collagen.

Table I. Adsorbed Layer Thickness of Soluble Calf Skin Collagen on Glass as a Function of pH and Temperature, (thicknesses a7.7°C and a15°C are given in A)...

Affinito P, Palomba S, Sorrentino C, Di Carlo C, Bifulco G, Arienzo MP, et al. (1999) Effects of postmenopausal hypoestrogenism on skin collagen. Maturitas 33 239-247... 

Flandin F, Buffevant C and Herbage D (1984) A differential scanning calorimetry analysis of the age-related changes in the thermal stability of rat skin collagen. Biochim Biophys Acta 791, 205-211. 

Fig. 8 shows the CNBr-peptides of the al - and a2-chains of calf skin collagen. Cyanogen bromide treatment which causes fissure at the methionine residues... 

Fig. 10. Automated Edman degradation of al-CB6-C2 of calf skin collagen. Relative yield of liberated PTH-glycine as a function of degradation cycles. Amount of the first glycine is arbitrarily set at 100 per cent...

Nomura, Y., Yamano, M., and Shirai, K. (1995). Renaturation of alpha 1 chains from shark skin collagen type I. ]. Food Sci. 60,1233-1236. 

B. Peptides from fish skin collagen and gelatin 238... 

Nowadays, ACE inhibitory peptides have been isolated from meat, remaining muscle proteins, skin collagen and gelatin, bone, and internal organs of fishes such as Alaska pollack, bonito, tuna, salmon, shark, and sardine. Table 16.1 provides a partial summary of ACE inhibitory peptides derived from marine fish sources, their amino acid sequence, the enzyme used for hydrolysis, and IC50 values. The IC50 value is the concentration of peptide that inhibits 50% of ACE activity. 

Volpin, D., Veis, A. Isolation and characterization of the cyanogen-bromide peptides from the al and a2 chains of acid-soluble bovine skin collagen. Biochemistry 10, 1751 (1971)... 

Epstein, E. H. [a 1 (III)] 3 human skin collagen. Release by pepsin digestion and preponderance in fetal life. J. BioL Chem. 249, 3225 (1974)... 

Shuster S, Raffle EJ, Bottoms E. Skin collagen in rheumatoid arthritis and the effect of corticosteroids. Lancet 1967 2 525. 

Haapasaari K, Rossi O, Risteli J, Oikarinen A. Effects of long-term inhaled corticosteroids on skin collagen synthesis and thickness in asthmatic patients. Eur Respir J 1998 ll(l) 139-43. 

Na, G.C. Interaction of calf skin collagen with glycerol linked function analysis. Biochemistry 1986, 25 967-73. 

Marker Lens protein Skin collagen Reference... 

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