Results 181 to 190 of about 23,165 (226)

Chromophore: apoprotein interactions in phytochrome A*

Plant, Cell & Environment, 1997
ABSTRACTPhytochromes are molecular light switches by virtue of their photochromic red/far‐red reversibility. The His‐324 residue next to the chromophore‐linked Cys‐323 plays a critical role in conferring photochromism to the tetrapyrrole chromophore in native phytochrome A. The chromophore appears to be enclosed between the amphiphilic α‐helical chains
P.‐S. SONG, M. H. PARK, M. FURUYA
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Apoprotein A and A-I profiles in subretinal fluid

International Ophthalmology, 1993
Previous reports have described the presence of apoproteins A in subretinal fluid (SRF). We studied the presence of total apoprotein A (apo A) and apoprotein A-I (apo A-I), using the method described by Laurel in SRF and its levels in serum in 20 patients with retinal detachment.
V, Huerva, B, Sinués, F J, Ascaso, A, Palomar   +3 more
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Metabolic Role of Human Apoprotein A-IV

1990
Compared with the other human apoproteins, physiological variations and metabolic functions of apo A-IV remain obscure. The apo A-IV has been discovered in rat HDL and has been later found in human plasma, mesenteric lymph and interstitial fluid. Apo A-IV is synthetized by intestine and liver and is catabolized by liver and kidneys.
L, Lagrost, P, Gambert, A, Athias, C, Lallemant   +3 more
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Surfactant Apoprotein A (SP-A) Is Synthesized in Airway Cells

American Journal of Respiratory Cell and Molecular Biology, 1990
The pulmonary surfactant apoproteins A, B, and C (SP-A, SP-B, and SP-C, respectively) function in concert with surfactant phospholipids to reduce surface pressure in the alveolus. Surfactant apoproteins also regulate surfactant synthesis, secretion, adsorption, and recycling. SP-A and B have been localized by immunocytochemistry to alveolar epithelial (
R L, Auten, R H, Watkins, D L, Shapiro, S, Horowitz   +3 more
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A Monoclonal Antibody Affects Chromophore Apoprotein Interactions of Phytochrome A

Photochemistry and Photobiology, 1997
Abstract— A monoclonal antibody designated Mep‐1 was raised against phytochrome A from pea (Pisum sativum L.). The binding of this antibody (class IgG1) to partially degraded phytochrome (114 kDa) caused a considerable increase in the far‐red peak at the red‐light‐induced stationary state.
M, Nakazawa, N, Moriuchi, N, Wada, T, Hirose, S, Tokutomi, K, Manabe   +5 more
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Apoprotein S, a family of human serum lipoprotein polypeptides

Atherosclerosis, 1982
Glucose infusions given to neurological and postsurgical patients in the absence of oral feeding were found to increase the amount of new polypeptides in high density lipoproteins from 3 to 40% of total proteins as compared to 0.1% in normal subjects fed a regular diet. This increase was observed in HDL2 as well as in HDL3 and even in VLDL.
Malmendier, Claude, Ameryckx, Jean Pierre   +1 more
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Apoprotein A‐V: An important regulator of triglyceride metabolism

Journal of Inherited Metabolic Disease, 2008
SummaryApolipoprotein A‐V (apoA‐V) was discovered in 2001 both by comparative sequencing and as a liver regeneration protein. The gene is a located at the APOA1/C3/A4/A5 gene cluster on chromosome 11q23, a locus well known for playing a major role in regulating plasma cholesterol and triglyceride (TG) levels.
M, Kluger, J, Heeren, M, Merkel
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Apoproteins of avian very low density lipoprotein: demonstration of a single high molecular weight apoprotein

Biochemistry, 1979
The high molecular weight apoproteins of very low density lipoprotein (VLDL) were compared after preparation of VLDL from plasma and sera of diethylstilbestrol-treated roosters. When prepared from plasma with adequate control of endogenous proteolytic activity, VLDL contained a single high molecular weight apoprotein (apo-VLDL-B) as judged by ...
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Surfactant apoprotein A secretion by human tracheobronchial epithelial cells

Respiration Physiology, 1993
To determine whether surfactant apoproteins are produced locally by the airway walls, we used a two-site simultaneous immunoassay with monoclonal antibodies and measured the surfactant apoprotein-A (SP-A) content in media cultured with human airway explants or cultured epithelial cells.
T, Masuda, Y, Andoh, S, Shimura, Y, Ohkawara, K, Hosoda, S, Hashimoto, H, Sasaki, T, Takishima   +7 more
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A review of the unique features of HDL apoproteins

Lipids, 1979
AbstractThe human plasma high density lipoproteins (HDL) are a heterogeneous ensemble of five proteins associated with both neutral and polar lipids. The sequences of all five proteins are known. ApoA‐I and apoA‐II are the major protein components; apoC‐I, apoC‐II and apoC‐III are the minor protein components.
H J, Pownall, J D, Morrisett, J T, Sparrow, L C, Smith, J, Shepherd, R L, Jackson, A M, Gotto   +6 more
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