Now showing items 1-10 of 19
Identification of a Specific Telomere Terminal Transferase Activity in Tetrahymena Extracts
(Cell Press, 1985-12)
We have found a novel activity in Tetrahymena cell free extracts that adds tandem TTGGGG repeats onto synthetic telomere primers. The single-stranded DNA oligonucleotides (TTGGGG)4 and TGTGTGGGTGTGTGGGTGTGTGGG, consisting ...
Association between human erythrocyte calmodulin and the cytoplasmic surface of human erythrocyte membranes
(American Society for Biochemistry and Molecular Biology, 1983-05-25)
This report describes Ca2+-dependent binding of 125I-labeled calmodulin (125I-CaM) to erythrocyte membranes and identification of two new CaM-binding proteins. Erythrocyte CaM labeled with 125I-Bolton Hunter reagent fully ...
The Rh polypeptide is a major fatty acid-acylated erythrocyte membrane protein
(American Society for Biochemistry and Molecular Biology, 1988-12-05)
The erythrocyte Rh antigens contain an Mr = 32,000 integral protein which is thought to contribute in some way to the organization of surrounding phospholipid. To search for possible fatty acid acylation of the Rh polypeptide, ...
A molecular defect in two families with hemolytic poikilocytic anemia: reduction of high affinity membrane binding sites for ankyrin
(American Society for Clinical Investigation, 1981-12)
Patients from two families with chronic hemolytic anemia have been studied. The erythrocytes are very fragile and appear microcytic with a great variety of shapes. Clinical evaluation failed to identify traditionally ...
The Telomere Terminal Transferase of Tetrahymena Is a Ribonucleoprotein Enzyme with Two Kinds of Primer Specificity
(Cell Press, 1987-12-24)
We have analyzed the de novo telomere synthesis catalyzed by the enzyme telomere terminal transferase (telomerase) from Tetrahymena. Oligonucleotides representing the G-rich strand of telomeric sequences from five different ...
Reductions of erythrocyte membrane viscoelastic coefficients reflect spectrin deficiencies in hereditary spherocytosis
(American Society for Clinical Investigation, 1988-01)
Hereditary spherocytosis is a common hemolytic anemia associated with deficiencies in spectrin, the principal structural protein of the erythrocyte membrane-skeleton. We have examined 20 different individuals from 10 ...
Identification, purification, and partial characterization of a novel Mr 28,000 integral membrane protein from erythrocytes and renal tubules
(American Society for Biochemistry and Molecular Biology, 1988-10-25)
A novel Mr 28,000 integral membrane protein ("28kDa") was identified in human erythrocytes and found entirely associated with the Triton X-100 insoluble membrane skeletons. Antibodies to 28kDa reacted strongly on immunoblots ...
Deficient red-cell spectrin in severe, recessively inherited spherocytosis
(Massachusetts Medical Society, 1982-05-13)
Bepridil and cetiedil. Vasodilators which inhibit Ca2+-dependent calmodulin interactions with erythrocyte membranes
(American Society for Clinical Investigation, 1984-09)
Two new vascular smooth muscle relaxants, bepridil and cetiedil, were found to possess specific CaM-inhibitory properties which resembled those of trifluoperazine. Trifluoperazine, bepridil, and cetiedil inhibited ...
Polymorphism in the Mr 32,000 Rh protein purified from Rh(D)-positive and -negative erythrocytes
(National Academy of Sciences, 1988-06)
A Mr 32,000 integral membrane protein has previously been identified on erythrocytes bearing the Rh(D) antigen and is thought to contain the antigenic variations responsible for the different Rh phenotypes. To study it on ...