The removal of non-collagen components from newborn calf dermis with magnesium chloride solution.

The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Research Abstract Details 

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The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Abstract Text:

H Yamanishi,Y Sato,

1. Non-collagenous substances in newborn calf dermis were extracted with solutions of various concentrations of MgCl2. The total protein and hydroxyproline contents in MgCl2 extracts increased with increase in the concentration of MgCl2 in the solutions. In particular, steep increases of their contents were observed at concentrations of MgCl2 from 0.5 to 1.0 M. Total amounts of hydroxyproline in 1.0, 2.0, and 3.0 M MgCl2 extracts were equivalent to 40-50% of the hydroxyproline content in the whole connective tissue. Hexose and hexosamine contents of MgCl2 extracts increased with increase of the MgCl2 concentration. Hexuronic acid was hardly present in the residues after extractions with 0.5, 1.0, 2.0, and 3.0 M MgCl2. 2. Plasma proteins, hyaluronic acid, and dermatan sulfate were extracted at low concentrations of MgCl2. A non-collagenous protein and MgCl2-soluble collagen were extracted with 1.0, 2.0, and 3.0 M MgCl2 solutions. The disperson of collagen fibrils was observed in the residue extracted with 1.0 M MgCl2 solution by electron microscopy; the fibril structure of collagen was disordered by extraction with 2.0 and 3.0 M MgCl2. The results suggest that the dispersion and disorder of collagen fibrils lead to the release of a non-collagenous protein. Furthermore, it is suggested that the removal of hyaluronic acid and dermatan sulfate was not very effective for the solubilization of a large amount of collagen, but was suitable as a pretreatment to the extraction of a non-collagenous protein accompanied by the solubilization of a large amount of collagen. 3. The non-collagenous protein was purified by DEAE-cellulose column chromatography. Polyacrylamide gel electrophoresis of this protein at pH 8.5 showed a single band moving to the cathode. The non-collagenous protein contained 3.7% hexose, 1.8% hexosamine, and no hexuronic acid. This protein is rich in glycine, glutamic acid, and alanine, and contains neither hydroxyproline nor hydroxylysine. Sedimentation analysis showed a single peak with 1.8 S and the molecular weight was approx. 43,000 as determided by SDS polyacrylamide gel electrophoresis.

The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Publishing Authors By Initials

H Yamanishi,Y Sato,

For similar integumentary system: skin research abstracts see: integumentary system: skin research

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The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 79

Page Numbers: 131-44

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Jan

YEAR: 1976

The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Information

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LANGUAGE: eng

NlmUniqueID: 376600

The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Keywords Mesh Terms:

KEYWORDS: Skin

MESH TERMS: ultrastructure

Chemical & Substance for Abstract: The removal of non-collagen components from newborn calf dermis with magnesium chloride solution. Information

Substance Name: Collagen

Registry Number: 9007-34-5

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Country: JAPAN

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MEDLINETA: J Biochem

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