Results 91 to 100 of about 4,588 (199)

Purification and cDNA cloning of the ovigerous-hair stripping substance (OHSS) contained in the hatch water of an estuarine crab Sesarma haematocheir [PDF]

open access: yes, 2004
The egg attachment system of an estuarine crab Sesarma haematocheir is formed on the maternal ovigerous hairs just after egg laying, and slips off these hairs just after hatching.
Agata, Kiyokazu   +8 more
core   +1 more source

Structural and functional insights into caseinolytic proteases reveal an unprecedented regulation principle of their catalytic triad [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Caseinolytic proteases (ClpPs) are large oligomeric protein complexes that contribute to cell homeostasis as well as virulence regulation in bacteria. Although most organisms possess a single ClpP protein, some organisms encode two or more ClpP isoforms. Here, we elucidated the crystal structures of ClpP1 and ClpP2 from pathogenic
E. Zeiler   +8 more
openaire   +2 more sources

An open axial channel of the AAA ClpXP protease enhances degradation of specific classes of protein substrates

open access: yesProtein Science, Volume 35, Issue 1, January 2026.
Abstract ClpXP and other AAA proteases maintain proteostasis and regulate cellular functions by degrading misfolded, incomplete, or regulatory proteins. ClpX recognizes substrates via unstructured degron sequences, typically located at the N‐ or C‐terminus. Although five classes of degrons are known, only recognition of the ssrA tag, a C‐motif‐1 degron,
Yifei Lyu   +4 more
wiley   +1 more source

Ekstrakcija i pročišćavanje glukoamilaze i proteaze, proizvedenih jednostupanjskom fermentacijom s pomoću Aspergillus awamori [PDF]

open access: yes, 2011
Simultaneous extraction and purification of glucoamylase and protease produced concomitantly by Aspergillus awamori Nakazawa MTCC 6652 in a single fermentor using solid-state fermentation (SSF) has been studied.
Rintu Banerjee   +2 more
core   +1 more source

Phylogenomic analyses of malaria parasites and evolution of their exported proteins [PDF]

open access: yes, 2011
Background Plasmodium falciparum is the most malignant agent of human malaria. It belongs to the taxon Laverania, which includes other ape-infecting Plasmodium species. The origin of the Laverania is still debated.
Christian Pick   +4 more
core   +1 more source

Polychromophilus spp. (Haemosporida: Plasmodiidae): First Molecular Detection in Bat Flies From Brazilian Bats

open access: yesIntegrative Zoology, Volume 21, Issue 1, Page 137-150, January 2026.
This study identifies Polychromophilus sp. in blood‐feeding flies (Basilia speiseri and Basilia lindolphoi) from Myotis nigricans bats in Brazil, marking the first molecular detection of the parasite in an insect vector in this country. Two haplotypes were identified, both within the Polychromophilus murinus group.
Bruno S. Mathias   +7 more
wiley   +1 more source

Transferring an optimized TAP-toolbox for the isolation of protein complexes to a portfolio of rice tissues [PDF]

open access: yes, 2016
Proteins are the cell's functional entities. Rather than operating independently, they interact with other proteins. Capturing in vivo protein complexes is therefore crucial to gain understanding of the function of a protein in a cellular context ...
Cannoot, Bernard   +12 more
core   +1 more source

Isolation of a Protease‐Producing Microbacterium From the Intestinal Tract of Ruditapes philippinarum and Its Probiotic Effects

open access: yesAquaculture Nutrition, Volume 2026, Issue 1, 2026.
Aquatic probiotics are generally recognized as safe and nontoxic live bacterial preparations, primarily sourced from the culturing environment or directly from aquatic organisms. Upon entering the aquatic environment, these probiotics are capable of colonizing both the surface and internal compartments of aquatic organisms, thereby enhancing their ...
Hui Guan   +10 more
wiley   +1 more source

Toxin Production by Aeromonas sobria in Natural Environments: River Water vs. Seawater [PDF]

open access: yes, 2008
Aeromonas are water-borne pathogens. They are halotolerant, which means that they can survive in environments whose salt content corresponds to that of seawater (3.0% NaCl).
Ansaruzzaman, Mohammad   +6 more
core   +1 more source

Screening, Purification, and Characterization of Protease Inhibitors From Different Legume Seeds With Cytotoxic and Antimicrobial Effects

open access: yesLegume Science, Volume 7, Issue 4, December 2025.
ABSTRACT This study reports the purification and characterization of protease inhibitors (PIs) from three Egyptian legumes: soybean (Glycine max), cowpea (Vigna unguiculata), and chickpea (Cicer arietinum). Their antimicrobial and cytotoxic activities were also assessed.
Mona M. Ibrahim   +5 more
wiley   +1 more source

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