Results 11 to 20 of about 40,140 (225)

Aminopeptidase C of Aspergillus niger Is a Novel Phenylalanine Aminopeptidase [PDF]

open access: yesApplied and Environmental Microbiology, 2003
ABSTRACT A novel enzyme with a specific phenylalanine aminopeptidase activity (ApsC) from Aspergillus niger (CBS 120.49) has been characterized. The derived amino acid sequence is not similar to any previously characterized aminopeptidase sequence but does share similarity with some mammalian acyl-peptide ...
Basten, E.J.W.   +2 more
openaire   +5 more sources

HISTOCHEMICAL DEMONSTRATION OF AMINOPEPTIDASE [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1956
A histochemical method for demonstration of aminopeptidase in tissue sections using the substrates l-leucyl β-naphthylamide and dl-alanyl β-naphthylamide is presented. The method may also be quantitated on tissue sections. The successful histochemical demonstration of the enzyme with both substrates is dependent upon the use of frozen-
M S, BURSTONE, J E, FOLK
openaire   +3 more sources

Purification and partial characterization of Phaseolus vulgaris seed aminopeptidase [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 1999
The aminopeptidase activity of Phaseolus vulgaris seeds was measured using L-Leu-p-nitroanilide and the L-aminoacyl-ß-naphthylamides of Leu, Ala, Arg and Met.
A.P. Abdala   +3 more
doaj   +2 more sources

The role of insulin-regulated aminopeptidase in MHC class I antigen presentation

open access: yesFrontiers in Immunology, 2012
Production of MHC I ligands from antigenic proteins generally requires multiple proteolytic events. While the proteolytic steps required for antigen processing in the endogenous pathway are clearly established, persisting gaps of knowledge regarding ...
Peter M Van Endert, Loredana eSaveanu
doaj   +1 more source

MHJ_0125 is an M42 glutamyl aminopeptidase that moonlights as a multifunctional adhesin on the surface of Mycoplasma hyopneumoniae [PDF]

open access: yesOpen Biology, 2013
Bacterial aminopeptidases play important roles in pathogenesis by providing a source of amino acids from exogenous proteins, destroying host immunological effector peptides and executing posttranslational modification of bacterial and host proteins.
Mark W. Robinson   +12 more
doaj   +1 more source

Preparation and Characterization of an Ancient Aminopeptidase Obtained from Ancestral Sequence Reconstruction for L-Carnosine Synthesis

open access: yesMolecules, 2022
As a biologically active peptide, L-carnosine has been widely used in the pharmaceutical, cosmetic and health care industries due to its various physiological properties.
Fan Liu   +7 more
doaj   +1 more source

The Discovery of Insulin-Regulated Aminopeptidase (IRAP) Inhibitors: A Literature Review

open access: yesFrontiers in Pharmacology, 2020
Insulin-Regulated Aminopeptidase (IRAP, EC 3.4.11.3) is a multi-tasking member of the M1 family of zinc aminopeptidases. Among its diverse biological functions, IRAP is a regulator of oxytocin levels during late stages of pregnancy, it affects cellular ...
Dimitris Georgiadis   +4 more
doaj   +1 more source

Depth-Resolved Variations of Cultivable Bacteria and Their Extracellular Enzymes in the Water Column of the New Britain Trench

open access: yesFrontiers in Microbiology, 2018
Marine microorganisms and their extracellular enzymes (ECEs) play an important role in the remineralization of organic material by hydrolyzing high-molecular-weight substrates to sizes sufficiently small to be transported through cell membrane, yet the ...
Qianfeng Liu   +9 more
doaj   +1 more source

An M29 Aminopeptidase from Listeria Monocytogenes Contributes to In Vitro Bacterial Growth but not to Intracellular Infection

open access: yesMicroorganisms, 2020
Aminopeptidases that catalyze the removal of N-terminal residues from polypeptides or proteins are crucial for physiological processes. Here, we explore the biological functions of an M29 family aminopeptidase II from Listeria monocytogenes (LmAmpII). We
Xian Zhang   +11 more
doaj   +1 more source

IRAP Endosomes Control Phagosomal Maturation in Dendritic Cells

open access: yesFrontiers in Cell and Developmental Biology, 2020
Dendritic cells (DCs) contribute to the immune surveillance by sampling their environment through phagocytosis and endocytosis. We have previously reported that, rapidly following uptake of extracellular antigen into phagosomes or endosomes in DCs, a ...
Mirjana Weimershaus   +6 more
doaj   +1 more source

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