Urinary Protein-Carbohydrate Compounds

Urinary Protein-Carbohydrate Compounds 1. General Introduction 

Group of compounds Definition Alternative nomenclature Examples 

Glycoproteins substances of high molecular weight having many of the physical properties of a protein, but containing covalently bonded carbohydrate component s) mucoproteins, mucosubstances, mucins ovalbumin, thyroglobulin, ceruloplasmin 

Acid glycoproteins glycoproteins containing a high concentration of sialic acid and having a low isoionic point sialoglycoproteins orosomucoid 

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II. Urinary Protein-Carbohydrate Compounds 1. General Introduction... 

III. Urinary Protein-Carbohydrate Compounds of Low Molecular Weight... 

The connective-tissue components collagen and elastin are the probable source of some urinary protein-carbohydrate compounds. A glycopeptide containing approximately equimolar proportions of hy-droxy-L-lysine, D-glucose, and D-galactose has been isolated from... 

The urine of a mammal is a rich source of organic compounds that may range in molecular mass from components as large as proteins to relatively small molecules (<100 D of mass), presumably various secondary metabolism products. On a less absolute scale, volatility of various urinary metabolites will be limited by both their molecular mass and polarity. Based on the presence of polar and ionizable groups in the molecule, some very small molecules (e.g., urinary acids, peptides or carbohydrates) are very unlikely to... 

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