Results 101 to 110 of about 61,455 (226)

The High-Resolution Structures of the Neutral and the Low pH Crystals of Aminopeptidase from \u3cem\u3eAeromonas proteolytica\u3c/em\u3e [PDF]

, 2006
The aminopeptidase from Aeromonas proteolytica (AAP) contains two zinc ions in the active site and catalyzes the degradation of peptides. Herein we report the crystal structures of AAP at 0.95-Å resolution at neutral pH and at 1.24-Å resolution at low pH.
Bienvenue, David L., Bzymek, Krzysztof P., Desmarais, William, Holz, Richard C., Petsko, Gregory A., Ringe, Dagmar   +5 more
core   +1 more source

Reduced Dietary Protein Induces Changes in the Dental Proteome

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 2, Page 107-127, March 2026.
Low dietary protein (10%) from normal (20%) does change protein expression in tooth proteome and alter developmental pathways. Among the significant protein expressions changes are actin‐based myosins, tooth, and bone development proteins. Perplexingly tooth size is not altered, suggesting more nuanced phenotypic response to low dietary protein in ...
Robert W. Burroughs, Christopher J. Percival, Natasha S. Vitek   +2 more
wiley   +1 more source

Proctolin and an Endogenous Proctolin-Like Peptide Enhance the Contractility of the Limulus Heart [PDF]

, 1983
Synthetic proctolin increases the force but not the rate of heart contractions of Limulus in a time- and dose-dependent manner. The threshold of this effect is 3 × 10−10M and the ED50 is approximately 10−8M. At concentrations up to 10−7 M, proctolin has
Augustine, George J., Sullivan, Robert E., Watson, Winsor H., III   +2 more
core   +2 more sources

Recent Advancements in the Characterization of D‐Amino Acid and Isoaspartate Post‐Translational Modifications

Mass Spectrometry Reviews, Volume 45, Issue 2, Page 218-230, March/April 2026.
ABSTRACT One of the great triumphs of mass spectrometry‐based peptide and protein characterization is the characterization of their modifications as most modifications have a characteristic mass shift. What happens when the modification does not change the mass of the peptide?
Samuel Okyem, Jonathan V. Sweedler
wiley   +1 more source

Dipeptidyl peptidase IV, aminopeptidase N and DPIV/APN-like proteases in cerebral ischemia

Journal of Neuroinflammation, 2012
Background Cerebral inflammation is a hallmark of neuronal degeneration. Dipeptidyl peptidase IV, aminopeptidase N as well as the dipeptidyl peptidases II, 8 and 9 and cytosolic alanyl-aminopeptidase are involved in the regulation of autoimmunity and ...
Röhnert Peter, Schmidt Werner, Emmerlich Patrick, Goihl Alexander, Wrenger Sabine, Bank Ute, Nordhoff Karsten, Täger Michael, Ansorge Siegfried, Reinhold Dirk, Striggow Frank   +10 more
doaj   +1 more source

Proton NMR Spectroscopy as a Probe of Dinuclear Copper(II) Active Sites in Metalloproteins. Characterization of the Hyperactive Copper(II)-Substituted Aminopeptidase from \u3cem\u3eAeromonas proteolytica\u3c/em\u3e [PDF]

, 1998
Proton NMR spectra of the hyperactive Cu(II)-substituted aminopeptidase from Aeromonas proteolytica (AAP) were recorded in both H2O and D2O buffered solution at pH 6.7.
Bennett, Brian, Chen, Guanjing, Holz, Richard C., Ming, Li-June   +3 more
core   +1 more source

Functional modulation of the transient outward current Ito by KCNE beta-subunits and regional distribution in human non-failing and failing hearts [PDF]

, 2006
Objectives: The function of Kv4.3 (KCND3) channels, which underlie the transient outward current I,, in human heart, can be modulated by several accessory subunits such as KChIP2 and KCNE1-KCNE5.
Banse, U., Cotella, D., Graf, E., Jost, Norbert, Radicke, S., Ravens, U., Tseng, G., Varró, András, Wettwer, E.   +8 more
core   +1 more source

Targeting Tumor Dormancy and Recurrence: Molecular Mechanisms and Peptide Therapeutic Delivery

MedComm – Oncology, Volume 5, Issue 1, March 2026.
This review summarizes the molecular mechanisms that regulate tumor dormancy and its role in cancer recurrence, with emphasis on immune evasion, extracellular matrix remodeling, metabolic regulation and angiogenic switching. It further discusses emerging peptide–based therapeutic strategies aimed at detecting, modulating, and eliminating dormant tumor ...
Abdur Raheem Aleem, Atif Ali, Wajid Ali, Yuying Cheng, Zhibin Yan, Chaoyi Xia, Chenguang Liu, Caiyun Fu, Yiren Hu, Xi Wang   +9 more
wiley   +1 more source

Persulfidome of Sweet Pepper Fruits during Ripening: The Case Study of Leucine Aminopeptidase That Is Positively Modulated by H₂S

Antioxidants
Protein persulfidation is a thiol-based oxidative posttranslational modification (oxiPTM) that involves the modification of susceptible cysteine thiol groups present in peptides and proteins through hydrogen sulfide (H2S), thus affecting their function ...
María A. Muñoz-Vargas, Salvador González-Gordo, Angeles Aroca, Luis C. Romero, Cecilia Gotor, José M. Palma, Francisco J. Corpas   +6 more
doaj   +1 more source

Substrate specificity and structural investigation into PepO and PepW : two peptidases from Lactobacillus rhamnosus : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University, Palmerston North, New Zealand [PDF]

, 2005
The proteolytic systems of lactic acid bacteria have important roles in the maturation and flavour development of cheese. Lactic acid bacteria pepetidases contribute to the taste of cheese through the production of low-molecular weight peptides and free ...
Yates, Karen Maree
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