Results 31 to 40 of about 34,911 (258)

A Dual-Enzyme Amplification Loop for the Sensitive Biosensing of Endopeptidases

open access: yes, 2023
A rapid and sensitive approach for the detection of endopeptidases via a new analyte-triggered mutual emancipation of linker-immobilized enzymes (AMELIE) mechanism has been developed and demonstrated using a matrix metallopeptidase, a collagenase, as the
Sze Wing Tang (16509935)   +5 more
core   +2 more sources

Genetic Evidence for Distinct Functions of Peptidoglycan Endopeptidases in Escherichia coli

open access: yesFrontiers in Microbiology, 2020
Peptidoglycan (PG) is an essential component of the bacterial exoskeleton that plays a pivotal role in the maintenance of cell shape and resistance to cell lysis under high turgor pressures.
Si Hyoung Park   +4 more
doaj   +1 more source

Highly active and selective endopeptidases with programmed substrate specificities [PDF]

open access: yes, 2009
A family of engineered endopeptidases has been created that is capable of cleaving a diverse array of peptide sequences with high selectivity and catalytic efficiency (kcat/KM > 104 M?1 s?1).
Varadarajan, Navin   +4 more
core   +1 more source

Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron

open access: yesAngewandte Chemie, EarlyView.
Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej   +20 more
wiley   +2 more sources

Influence of heavy metals on biosynthesis, activity of lytic enzymes and growthstimulating factor of Streptomyces recifensis var. lyticus P-29

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2005
Influence of heavy metals on growth, biosynthesis, lytic action and growthstimulating activity enzymes complex of Streptomyces recifensis var. lyticus was studied.
Т. P. Kilochok   +4 more
doaj   +1 more source

Endopeptidase 24.16B. A new variant of endopeptidase 24.16.

open access: yesThe Journal of biological chemistry, 1995
A peptidase, isolated from rat testes, is inhibited by 1 mM o-phenanthroline, 1 microM N-(1-(R,S)-carboxyl-3-phenylpropyl)-Ala-Ala-Phe-p-aminobenzoate, and 6 mM Pro-Ile, properties similar to those ascribed to endopeptidase 24.16. The enzyme hydrolyzes dynorphin A-8, neurotensin 1-13, angiotensin I, and substance P.
D, Rodd, L B, Hersh
openaire   +2 more sources

Substrate‐Dependent Crosslinking by the Cytochrome P450 From Aminopyruvatide Biosynthesis

open access: yesAngewandte Chemie, EarlyView.
Substitutions in the aminopyruvatide precursor peptide altered the C─C linkage formed from a YLY motif by the P450 ApyO to a N─C linkage in a WLY motif. Moreover, constitutional isomers crosslinked by C─C and C─O linkages were formed from YYY or YWY motifs. ABSTRACT Cytochrome P450s catalyze an array of reactions including crosslinking of aromatic side
Chandrashekhar Padhi   +6 more
wiley   +2 more sources

Antioxidant potential and physicochemical properties of protein hydrolysates from body parts of North Atlantic sea cucumber (Cucumaria frondosa)

open access: yesFood Production, Processing and Nutrition, 2021
Protein hydrolysates were prepared from North Atlantic sea cucumber (Cucumaria frondosa) body wall (BW), and processing by-product flower (FL) and internal organs (IN).
Tharindu R. L. Senadheera   +2 more
doaj   +1 more source

Two new cysteine endopeptidases obtained from the latex of Araujia hortorum fruits [PDF]

open access: yes, 2022
Two new endopeptidases were purified to homogeneity from the latex of Araujia hortorum fruits by a simple purification procedure involving ultracentrifugation and ion exchange chromatography.
Obregón, Walter David   +5 more
core  

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

open access: yesMolecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller   +10 more
wiley   +1 more source

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