Results 251 to 260 of about 1,097,067 (307)
Some of the next articles are maybe not open access.
2013
The evaluation of enzyme activities, especially their capacities, represents an important step towards the modelling of biochemical pathways in living organisms. The implementation of microplate technology enables the determination of up to >50 enzymes in relatively large numbers of samples and in various biological materials. Most of these enzymes are
Menard, Guillaume +4 more
openaire +4 more sources
The evaluation of enzyme activities, especially their capacities, represents an important step towards the modelling of biochemical pathways in living organisms. The implementation of microplate technology enables the determination of up to >50 enzymes in relatively large numbers of samples and in various biological materials. Most of these enzymes are
Menard, Guillaume +4 more
openaire +4 more sources
1987
Publisher Summary This chapter discusses the sulfate-activating enzymes. The two sulfate-activating enzymes, ATP-sulfurylase (ATP:sulfate adenylyltransferase; sulfate adenylyltransferase), and APS kinase (ATP: adenylylsuifate 3'-phosphotransferase; adenylylsulfate kinase), catalyze the activation of inorganic sulfate first to APS (adenosine- 5 ...
I H, Segel, F, Renosto, P A, Seubert
openaire +2 more sources
Publisher Summary This chapter discusses the sulfate-activating enzymes. The two sulfate-activating enzymes, ATP-sulfurylase (ATP:sulfate adenylyltransferase; sulfate adenylyltransferase), and APS kinase (ATP: adenylylsuifate 3'-phosphotransferase; adenylylsulfate kinase), catalyze the activation of inorganic sulfate first to APS (adenosine- 5 ...
I H, Segel, F, Renosto, P A, Seubert
openaire +2 more sources
Bulletin of Mathematical Biology, 1976
The electromagnetic molecular electronic resonance (EMER) frequencies of the molecular chains of α-chymotrypsin are calculated. The chain length relations and coupling positions suggest a possible energy transfer, at the EMER frequencies, from one chain to the other.
openaire +2 more sources
The electromagnetic molecular electronic resonance (EMER) frequencies of the molecular chains of α-chymotrypsin are calculated. The chain length relations and coupling positions suggest a possible energy transfer, at the EMER frequencies, from one chain to the other.
openaire +2 more sources
Archives of Biochemistry and Biophysics, 1960
Abstract Hydroxamates of peptides were formed from some peptides by incubating with pH5 enzyme, hydroxylamine and ATP. l -Leucyl- l -tyrosyl-hydroxamate was identified by paper chromatography. The formation of glycyl- l -leucyl-hydroxamate was dependent on ATP.
S, TUBOI, A, HUZINO
openaire +2 more sources
Abstract Hydroxamates of peptides were formed from some peptides by incubating with pH5 enzyme, hydroxylamine and ATP. l -Leucyl- l -tyrosyl-hydroxamate was identified by paper chromatography. The formation of glycyl- l -leucyl-hydroxamate was dependent on ATP.
S, TUBOI, A, HUZINO
openaire +2 more sources
Corticosteroids and Enzyme Activity
1964Publisher Summary This chapter describes those enzymes that are altered following adrenalectomy or the administration of corticosteroids. The current literature on this subject is descriptive rather than interpretive. Although it bridges the interest of endocrinologists, pharmacologists, and biochemists, few answers are to be found at present to the ...
F, ROSEN, C A, NICHOL
openaire +2 more sources
Multimodulation of Enzyme Activity
1981Publisher Summary This chapter discusses the multimodulation of enzyme activity. Multimodulation of enzyme activity arises from the accumulation in a given enzyme of several regulatory mechanisms, whether of different types—cooperative, allosteric, interconversion, or of the same type—multiple allosteric effects, or of any combination of these ...
openaire +2 more sources
Measurement of Enzyme Activities
2017The determination of enzyme activities in organ or organellar extracts is an important means of investigating metabolic networks and allows testing the success of enzyme-targeted genetic engineering. It also delivers information on intrinsic enzyme parameters such as kinetic properties or impact of effector molecules. This chapter provides protocols on
openaire +2 more sources
Enzymes and Enzyme Activity Encoded by Nonenveloped Viruses
Annual Review of Virology, 2017Viruses are obligate intracellular parasites that rely on host cell machineries for their replication and survival. Although viruses tend to make optimal use of the host cell protein repertoire, they need to encode essential enzymatic or effector functions that may not be available or accessible in the host cellular milieu.
Kimi, Azad +2 more
openaire +2 more sources
Activities of proteolytic enzymes
2011Proteases, also known as proteinases or proteolytic enzymes, are a large group of hydrolases that catalyze the cleavage of peptide bonds in proteins to produce peptides and/or amino acids. Classification of proteolytic enzymes is based on three major criteria: type of reaction catalyzed, functional group of the active site, and type of molecular ...
LANDI, LORETTA +3 more
openaire +3 more sources
Enzymic Activities of Commercial Preparations of Pancreatic Enzymes
Scottish Medical Journal, 1977The enzymic activities of 20 commercial pancreatic extracts have been measured by standard (F.I.P.) methods of assay and the activities have been compared with a standard preparation of pancreatin supplied by the British Pharmacopoeia Commission. A wide range of enzymic activities was found.
S, Drummond +3 more
openaire +2 more sources