STRUCTURE OF CARBOHYDRATES

1 pGlcNAc4,1 pGal6,2a NANA (Human Alveolar Glycoprotein) 

1 pGlcNAc3 (4),1 pGal2 (4,6),2a NANA (Rabbit Hepatocyte Membrane) 

Arafpi,2Arafpi,2Arafpi- or Arafpl, 3Arafpi, 2Arafpi, 2Arafpi - 

In (f) the main structural features of the extensions and allied plant proteins are summarised. Arabinofuranosyl tetrasaccharides are mostly linked to hydroxyproline and, occasionally, to serine. Galactosyl residues occur also, linked to both amino acids and possibly bracketing the glycosylated domain. 

The structure (j) is of great important as the linkage sequence between many glycosaminoglycan chains and protein (see below). 

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BIBLIOGRAPHY OF CRYSTAL STRUCTURES OF CARBOHYDRATES, NUCLEOSIDES, AND NUCLEOTIDES FOR 1979 AND 1980 ADDENDA AND ERRATA FOR 1970-1978 AND INDEX FOR 1935-1980... 

A method for the determination of formaldehyde in the presence of acetaldehyde was developed by Nicolet and Shinn.88,100 103 After the excess periodate had been destroyed, these workers swept the acetaldehyde (from the neutral reaction mixture) into a sodium bisulfite solution by means of a stream of carbon dioxide. The acetaldehyde was measured by conventional, bisulfite methods, and the residual formaldehyde was precipitated with Dimedon. This procedure was applied to protein hydroly-zates and to terminal deoxy structures of carbohydrates.88,280 ... 

The value of H n.m.r. spectroscopy in determining the structures of carbohydrates is well recognized. In this Section, some of the important features observed in the 100-MHz, H n.m.r. spectra of sucrose derivatives will be discussed, and the potential of I3C nuclear magnetic resonance spectroscopy will be very briefly indicated. Horton and his colleagues162 discussed the high resolution, 4H n.m.r. spectra of octa-O-acetylsucrose (75). The chemical shifts and cou-... 

BIBLIOGRAPHY OF CRYSTAL STRUCTURES OF CARBOHYDRATES, NUCLEOSIDES, AND NUCLEOTIDES ... 

Although memories of Bob Tipson will inevitably center on his insistence on perfection in the preparation of scientific manuscripts, the fundamental research contributions he made early in his long career to our knowledge of the structure of carbohydrates and especially of the nucleic acids merit equal recognition. His brusque and sometimes irascible outward manner concealed a kindly and concerned individual, a true gentleman and scholar. 

K Schmid. Human plasma a,-acid glycoprotein—biochemical properties, the amino acid sequence and the structure of carbohydrate moiety, variants and polymorphism. In P Baumann, CB Eap, WE Muller, JP Tillement, eds. Al-pharacid glycoprotein genetics, biochemistry, physiological function, and pharmacology. Alan R. Liss, New York, 1989, pp 7-22. 

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