Results 271 to 280 of about 345,950 (317)
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Alpha-subunit-producing pituitary adenomas
Virchows Archiv A Pathological Anatomy and Histopathology, 1986Immunohistological techniques demonstrate the alpha-subunit of glycoprotein hormones in the majority of endocrine-inactive, undifferentiated pituitary adenomas and pituitary oncocytomas. In about one-fifth of endocrine-active adenomas, the alpha-subunit is produced in combination with either adrenocorticotropic hormone or prolactin, and it is found in ...
A M, Landolt, P U, Heitz
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Structure of Human Luteinizing Hormone Alpha Subunit
Endocrine Research Communications, 1978Structural studies have substantiated the concept that the glycoprotein hormones consist of a "common" alpha subunit and "hormone-specific" beta subunit. Despite this, consensus is still lacking concerning certain portions of the amino acid sequences, including alignment of residues 81--82 in the alpha subunit.
H T, Keutmann +3 more
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Biochemical and Biophysical Research Communications, 1989
Transducin, the retinal G-protein, is a heterotrimeric protein composed of alpha, beta and gamma subunits. Intermolecular disulfide linkages between the alpha-subunits of transducin molecules are spontaneously formed when the purified G-protein is placed in a non-reducing buffer system.
M, Wessling-Resnick, G L, Johnson
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Transducin, the retinal G-protein, is a heterotrimeric protein composed of alpha, beta and gamma subunits. Intermolecular disulfide linkages between the alpha-subunits of transducin molecules are spontaneously formed when the purified G-protein is placed in a non-reducing buffer system.
M, Wessling-Resnick, G L, Johnson
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Identification of subunit contact sites on the .alpha.-subunit of lutropin
Biochemistry, 1991Peptides corresponding to the entire sequence of the alpha-subunit of the human glycoprotein hormones were synthesized by using standard solid-phase procedures. Purified peptides were incubated in the presence of alpha- and beta-subunits of bovine lutropin, and subunit recombination was monitored by difference spectroscopy, reverse-phase high-pressure ...
S R, Krystek, J A, Dias, T T, Andersen
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Alpha-Subunit Secreting Pituitary Tumors
1997The pituitary glycoprotein hormones, TSH, FSH, and LH are comprised of two separate noncovalently bound subunits, alpha and beta. The alpha subunit is identical in all of the hormones. The β-subunit is unique for each and confers the specific immunologic and functional activity.
Tamis M. Bright, E. Chester Ridgway
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Alpha Subunit Position and GABA Receptor Function
Science's STKE, 2005GABA A (γ-aminobutyric acid type A) receptors are ligand-gated ion channels composed of five subunits, generally two αs, two βs, and a γ2. Recent research in which sets of subunits containing α1 or α6 subunits were artificially linked has revealed the importance of subunit position in determining GABA A
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Specific dissociation of alpha B subunits from alpha-crystallin.
Biochimica et biophysica acta, 1989Exposure of bovine alpha-crystallin to 0.1 M glycine at pH 7 decreases the average molar mass of the protein from 700 to 420 kDa. When the pH is lowered to 2.5, in the same buffer, the alpha B chains specifically dissociate from the aggregates, leaving a particle of 290 kDa containing only alpha A chains.
R C, Augusteyn +3 more
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Protein farnesyltransferase, alpha subunit
AfCS-Nature Molecule Pages, 2009Lai Chan, Fuyuhiko Tamanoi
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Biology of reproduction, 1990
Sodium/potassium adenosine triphosphatase (Na+/K+ ATPase) and Na+/K+ ATPase mRNA content of rabbit embryos during preimplantation development were evaluated. Changes in Na+/K+ ATPase alpha-subunit content were detected with Western blotting using polyclonal antiserum against guinea pig Na+/K+ ATPase.
C S, Gardiner, M A, Grobner, A R, Menino
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Sodium/potassium adenosine triphosphatase (Na+/K+ ATPase) and Na+/K+ ATPase mRNA content of rabbit embryos during preimplantation development were evaluated. Changes in Na+/K+ ATPase alpha-subunit content were detected with Western blotting using polyclonal antiserum against guinea pig Na+/K+ ATPase.
C S, Gardiner, M A, Grobner, A R, Menino
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