Kenneth D. Gibson

Roche Institute of Molecular Biology, Nutley, New Jersey, United States

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Publications (2)6.03 Total impact

  • James E. Labdon · Kenneth D. Gibson · Shaiu Sun · Sidney Pestka
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    ABSTRACT: The carbohydrate content of all of the species of human leukocyte interferon (IFN-alpha) which have been derived from patients with chronic myelogeneous leukemia (CML) and purified to homogeneity has now been determined. Amino sugar content was measured by high-performance liquid chromatography and fluorescamine detection of acid hydrolysates of each sample. Two species showed significant amounts of glucosamine. Most of the purified species of leukocyte interferon from a myeloblast cell line were also tested, and two species were found to contain sugar residues. These forms also differed from the CML interferons in that they revealed the presence of greater amounts of galactosamine. The apparent lack of carbohydrate in some of the higher-molecular-weight species of interferon implicated factors other than glycosylation in the molecular weight differences. The results indicate that some species of IFN-alpha are glycosylated to various degrees.
    No preview · Article · Aug 1984 · Archives of Biochemistry and Biophysics
  • Daniel L. Kilpatrick · Kenneth D. Gibson · Barry N. Jones
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    ABSTRACT: Adrenal proenkephalin contains the sequence -Asn-Ser-Ser- that is a typical site for the attachment of asparagine-linked carbohydrate. The 5300- and 18,200-Da bovine adrenal proteins derived from proenkephalin contain this recognition sequence and were therefore analyzed for the presence of both amino and neutral sugars. Les than 0.05 mol of amino sugar and less than 0.1 mol of neutral sugar were found per mole of each protein. No amino sugar was detected in other high-molecular-weight adrenal [Met]enkephalin-containing proteins. Together these findings indicate that bovine adrenal proenkephalin does not contain asparagine-linked carbohydrate.
    No preview · Article · Aug 1983 · Archives of Biochemistry and Biophysics