Results 101 to 110 of about 4,302 (241)

A Pterin-Dependent Signaling Pathway Regulates a Dual-Function Diguanylate Cyclase-Phosphodiesterase Controlling Surface Attachment in Agrobacterium tumefaciens

mBio, 2015
The motile-to-sessile transition is an important lifestyle switch in diverse bacteria and is often regulated by the intracellular second messenger cyclic diguanylate monophosphate (c-di-GMP). In general, high c-di-GMP concentrations promote attachment to
Nathan Feirer, Jing Xu, Kylie D. Allen, Benjamin J. Koestler, Eric L. Bruger, Christopher M. Waters, Robert H. White, Clay Fuqua   +7 more
doaj   +1 more source

Photosensitization of peptides and proteins by pterin derivatives [PDF]

, 2019
Proteins are one of the preferential targets of the photosensitized damaging effects of ultraviolet (UV) radiation on biological system. Pterins belong to a family of heterocyclic compounds, which are widespread in living systems and participate in ...
Castaño, Carolina, Dántola, María Laura, Lorente, Carolina, Oliveros, Esther, Reid, Lara Olivia, Thomas, Andrés Héctor   +5 more
core  

Biochemistry of locusts. 6. The occurrence of a flavin in the eggs and of a pterin in the eyes of the African migratory locust (Locusta migratoria migratorioides R. & F.) and the desert locust (Schistocerca gregaria Forsk.) [PDF]

, 1951
T. W. Goodwin, S. Srisukh
openalex   +1 more source

An Enzyme Immunoassay for Neopterin and Biopterin Using a Microtitre Plate Linked with N2-(3-Aminopropyl) Derivatives of Pteridines

Pteridines, 1990
A novel and sensitive enzyme immunoassay for neopterin and biopterin using a microtitre plate has been developed. The antiserum against neopterin or biopterin was incubated with samples prepared from human urine or rat tissues, and was placed in a well ...
Sugimoto Takashi, Ogiwara Shoji, Kiuchi Kazutoshi, Nagatsu Toshiharu, Sakai Masao, Nagatsu Ikuko, Fujita Keisuke   +6 more
doaj   +1 more source

Chemical modification of 5-hydroxytryptophan photoinduced by endogenous sensitizers present in skin [PDF]

[EN] Damage caused to biological targets through sunlight photosensitized reaction is of paramount importance due to their potential effects on human health.
Dantola, M. Laura, Farias, Jesuan J., Lhiaubet, Virginie Lyria, Lizondo-Aranda, Paloma, Serrano, Mariana P., Thomas, Andrés H.   +5 more
core   +1 more source

Fluorescence-based characterisation of selected edible insect species: Excitation emission matrix (EEM) and parallel factor (PARAFAC) analysis

Current Research in Food Science, 2021
Fluorescence spectroscopy coupled with chemometric tools is a powerful analytical method, largely used for rapid food quality and safety evaluations. However, its potential has not yet been explored in the novel food sector.
G. Rossi, J. Durek, S. Ojha, O.K. Schlüter   +3 more
doaj  

Role of biopterin transporter (BT1) gene on growth and infectivity of Leishmania [PDF]

, 2007
Leishmania are known to be auxotrophic for pteridines that are known to play a critical role in the parasites survival. In the present work the role of biopterin transporter in the growth of the parasite and infectivity in to macrophages has been worked ...
Dole, Vandana S., Jain, Manju, Madhubala, Rentala, Myler, Peter J., Stuart, Kenneth D.   +4 more
core  

Structural Elements of Methanopterin, a Novel Pterin [PDF]

, 1983
Jan T. Keltjens, Marjan J. HUBERTS, W. H. Laarhoven, Godfried D. Vogels   +3 more
openalex   +1 more source

Intracranial calcification in dihydropteridine reductase deficiency

The Turkish Journal of Pediatrics, 1990
We described the clinical status and computerized tomographic findings of two patients with tetrahydrobiopterin (BH4) deficiency due to impaired BH4 regeneration.
T Coşkun, A Besim, I Ozalp, M Eryilmaz
doaj  

Multiple Routes to Color Convergence in a Radiation of Neotropical Poison Frogs. [PDF]

Syst Biol, 2023
Twomey E, Melo-Sampaio P, Schulte LM, Bossuyt F, Brown JL, Castroviejo-Fisher S.   +5 more
europepmc   +1 more source