Results 261 to 270 of about 2,268,451 (316)
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Mechanism of inactivation of alanine racemase by .beta.,.beta.,.beta.-trifluoroalanine
Biochemistry, 1989The alanine racemases are a group of PLP-dependent bacterial enzymes that catalyze the racemization of alanine, providing D-alanine for cell wall synthesis. Inactivation of the alanine racemases from the Gram-negative organism Salmonella typhimurium and Gram-positive organism Bacillus stearothermophilus with beta, beta, beta-trifluoroalanine has been ...
W S, Faraci, C T, Walsh
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Biochemistry, 1981
The alanine racemase from Escherichia coli B has been shown to process DL isomers of beta -fluoroalanine as suicide substrates with an identical partitioning ratio for each enantiomer of 820 catalytic eliminations of HF per enzymatic inactivation event [Wang, E., & Walsh, C. T. (1978) Biochemistry 17, 1313], suggesting the aminoacrylate--PLP complex as
E A, Wang, C, Walsh
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The alanine racemase from Escherichia coli B has been shown to process DL isomers of beta -fluoroalanine as suicide substrates with an identical partitioning ratio for each enantiomer of 820 catalytic eliminations of HF per enzymatic inactivation event [Wang, E., & Walsh, C. T. (1978) Biochemistry 17, 1313], suggesting the aminoacrylate--PLP complex as
E A, Wang, C, Walsh
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Developmental Medicine & Child Neurology, 1965
In 1950 Bassen and Kornzweig described the case of an 18 year old girl with atypical retinitis pigmentosa, a neurological disorder and an abnormality of the red blood cells which had not been previously described. In early childhood she was said to have had coeliac disease. The patient’s 11 year old brother presented a similar clinical picture. In 1957
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In 1950 Bassen and Kornzweig described the case of an 18 year old girl with atypical retinitis pigmentosa, a neurological disorder and an abnormality of the red blood cells which had not been previously described. In early childhood she was said to have had coeliac disease. The patient’s 11 year old brother presented a similar clinical picture. In 1957
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\(\beta\)-Menger and \(\beta\)-Hurewicz spaces
2021Summary: Recently, some papers on weaker forms of classical covering properties of Hurewicz and Menger have been published. In this paper, using the covers formed by \(\beta\)-open sets, we introduce and study the properties of \(\beta\)-Menger and \(\beta\)-Hurewicz topological spaces. We give counterexamples that show the interrelations between those
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Oestrogen receptor beta (ER beta)
Reviews of Reproduction, 1998Steroid action is mediated by specific intracellular receptors, which are shifted to a transcriptionally active state after ligand binding. In 1996, the cloning of a new member of the nuclear receptor superfamily from the rat prostate was reported. Ligand-binding experiments have shown that this receptor binds specifically to oestrogens and it has been
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Rapid separation of bovine beta-crystallin subunits beta B1, beta B2, beta B3, beta A3 and beta A4.
Experimental eye research, 1990Bovine beta-crystallin aggregates, beta H-, beta L1- and beta L2-crystallins, prepared by rapid gel filtration, are each subjected to anion-exchange chromatography in deaggregating media using a Pharmacia Fast Protein Liquid Chromatography System. beta B1, beta B2 and beta A4 subunits are rapidly isolated using a one step Mono Q column from beta H ...
C, Slingsby, O A, Bateman
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The Indian Journal of Pediatrics, 2005
Sarcoglycanopathies are relatively rare progressive muscular dystrophies with autosomal recessive inheritance; which belong to the group of limb girdle muscular dystrophies. The phenotype resembles dystrophinopathies due to proximal muscle weakness and calf hypertrophy. Reports from the Indian subcontinent are scarce.
Seema, Kapoor +3 more
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Sarcoglycanopathies are relatively rare progressive muscular dystrophies with autosomal recessive inheritance; which belong to the group of limb girdle muscular dystrophies. The phenotype resembles dystrophinopathies due to proximal muscle weakness and calf hypertrophy. Reports from the Indian subcontinent are scarce.
Seema, Kapoor +3 more
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Structure of coiled beta-beta-hairpins and beta-beta-corners.
FEBS letters, 1991Two types of super-secondary structure, coiled beta-beta-hairpins and beta-beta-corners, are considered in this paper. A beta-beta-corner can be represented as a long beta-beta-hairpin folded orthogonally on itself so that the strands, when passing from one layer to the other, rotate in a right-handed direction about an imaginary axis. It is shown that
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13-cis-Beta,beta-carotene and 15-cis-beta,beta-carotene.
Acta crystallographica. Section C, Crystal structure communications, 200813-cis-Beta,beta-carotene, C(40)H(56), crystallizes with a complete molecule in the asymmetric unit, whereas 15-cis-beta,beta-carotene, also C(40)H(56), has twofold symmetry about an axis through the central bond of the polyene chain. The polyene methyl groups are arranged on one side of the polyene chains for each molecule and the 6-s-cis beta end ...
Giuditta, Bartalucci +4 more
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Beta-lipotropin precursor of beta-MSH and beta-endorphin.
Annales de la nutrition et de l'alimentation, 1979The molecule beta-lipotropin, composed of 91 amino acids (beta-LPH 1-91) has gained considerable importance in recent years. Its double role as the precursor of beta-MSH (beta-LPH 41-58) and beta-endorphin (beta-LPH 61-91) makes this peptide unique in its kind.
N G, Seidah +3 more
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