Results 11 to 20 of about 232,235 (310)

Crystal structures of trypanosoma brucei oligopeptidase B broaden the paradigm of catalytic regulation in prolyl oligopeptidase family enzymes [PDF]

open access: yes, 2013
Oligopeptidase B cleaves after basic amino acids in peptides up to 30 residues. As a virulence factor in bacteria and trypanosomatid pathogens that is absent in higher eukaryotes, this is a promising drug target.
Canning, Peter   +3 more
core   +11 more sources

Mitochondrial protein import [PDF]

open access: yes, 1988
Transport of nuclear-encoded precursor proteins into mitochondria includes proteolytic cleavage of aminoterminal targeting sequences in the mitochondrial matrix. We have isolated the processing activity from Neurospora crassa.
Hartl, Franz-Ulrich   +5 more
core   +1 more source

The Bacillus subtilis signaling protein SpoIVB defines a new family of serine peptidases [PDF]

open access: yes, 2002
The protein SpoIVB plays a key role in signaling in the sigma (K) checkpoint of Bacillus subtilis. This regulatory mechanism coordinates late gene expression during development in this organism and we have recently shown SpoIVB to be a serine peptidase ...
Brannigan, J A, Cutting, S M, Hoa, N T
core   +2 more sources

Particles act as ‘specialty centers’ with expanded enzymatic function throughout the water column in the western North Atlantic

open access: yesFrontiers in Microbiology, 2022
Heterotrophic bacteria initiate the degradation of high molecular weight organic matter by producing an array of extracellular enzymes to hydrolyze complex organic matter into sizes that can be taken up into the cell.
C. Chad Lloyd   +7 more
doaj   +1 more source

Sonic Hedgehog Is a Member of the Hh/DD-Peptidase Family That Spans the Eukaryotic and Bacterial Domains of Life. [PDF]

open access: yes, 2018
Sonic Hedgehog (Shh) coordinates Zn2+ in a manner that resembles that of peptidases. The ability of Shh to undergo autoproteolytic processing is impaired in mutants that affect the Zn2+ coordination, while mutating residues essential for catalytic ...
Roelink, Henk
core   +3 more sources

Ubiquitylation activates a peptidase that promotes cleavage and destabilization of its activating E3 ligases and diverse growth regulatory proteins to limit cell proliferation in Arabidopsis [PDF]

open access: yes, 2017
The characteristic shapes and sizes of organs are established by cell proliferation patterns and final cell sizes, but the underlying molecular mechanisms coordinating these are poorly understood.
Bevan, Michael W   +18 more
core   +2 more sources

Inhibition of Human Cathepsins B and L by Caffeic Acid and Its Derivatives

open access: yesBiomolecules, 2020
Caffeic acid (CA) and its derivatives caffeic acid phenethyl ester (CAPE) and chlorogenic acid (CGA) are phenolic compounds of plant origin with a wide range of biological activities. Here, we identify and characterize their inhibitory properties against
Liza Ulčakar, Marko Novinec
doaj   +1 more source

PepO and CppA modulate Streptococcus sanguinis susceptibility to complement immunity and virulence

open access: yesVirulence, 2023
Streptococcus sanguinis is a ubiquitous commensal species of the oral cavity commonly involved as an opportunistic pathogen in cardiovascular infections.
Lívia A. Alves   +9 more
doaj   +1 more source

Solvent and thermal stability, and pH kinetics, of proline-specific dipeptidyl peptidase IV-like enzyme from bovine serum [PDF]

open access: yes, 2007
Proline-specific dipeptidyl peptidase-like (DPP IV; EC 3.4.14.5) activity in bovine serum has attracted little attention despite its ready availability and the paucity of useful proline-cleaving enzymes.
Abbott   +43 more
core   +1 more source

Predicted Secretome of the Monogenean Parasite Rhabdosynochus viridisi: Hypothetical Molecular Mechanisms for Host-Parasite Interactions

open access: yesParasitologia, 2023
Helminth parasites secrete several types of biomolecules to ensure their entry and survival in their hosts. The proteins secreted to the extracellular environment participate in the pathogenesis and anthelmintic immune responses. The aim of this work was
Marian Mirabent-Casals   +3 more
doaj   +1 more source

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