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(Table 1) Sample description and tetrapyrrole pigment yields for DSDP holes 63-647 and 63-471
, 1981 (Table 1) Sample description and tetrapyrrole pigment yields for DSDP holes 63-647 and 63 ...
Earl W Baker (6981329) +3 more
core +1 more source
Crystallization and preliminary X-ray characterization of the tetrapyrrole-biosynthetic enzyme porphobilinogen deaminase from Bacillus megaterium [PDF]
, 2013 The enzyme porphobilinogen deaminase (PBGD; hydroxymethylbilane synthase; EC 2.5.1.61) catalyses an early step of the tetrapyrrole-biosynthesis pathway in which four molecules of the monopyrrole porphobilinogen are condensed to form a linear tetrapyrrole.
Azim, N +17 more
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Leishmania major possesses a unique HemG-type protoporphyrinogen IX oxidase
Bioscience Reports, 2014 Leishmania major was proposed to either utilize haem from its host or partially synthesize the tetrapyrrole from host provided precursors. However, only indirect evidence was available for this partial late haem biosynthetic pathway. Here, we demonstrate
Dagmar Zwerschke +3 more
doaj +1 more source
Heme, Heme Oxygenase-1, Statins, and SARS-CoV-2
Antioxidants, 2023 Heme, a metalloporphyrin, or more specifically, a tetrapyrrole containing ferrous iron, is an ancient molecule [...]
David K. Stevenson +2 more
doaj +1 more source
, 2014 Citation: 'tetrapyrroles' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.T06291 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire +1 more source
Crystal structure of 4-(methoxycarbonyl)phenylboronic acid
Acta Crystallographica Section E: Crystallographic Communications, 2015 In the title compound, C8H9BO4, the methoxycarbonyl group is rotated out of the plane of the benzene ring by 7.70 (6)°. In the crystal, molecules are linked via pairs of O—H...O hydrogen bonds, involving the boronic acid OH groups, forming inversion ...
Keith J. Flanagan, Mathias O. Senge
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ACS Omega, 2019 Photodynamic therapy (PDT) is a treatment in which photoactive compounds delivered to cancerous tissues are excited with light and then transfer the absorbed energy to adjacent tissue oxygen molecules to generate toxic singlet oxygen (1O2).
Jianxin Wang +3 more
semanticscholar +1 more source
Plants, 2020 Plastid-nucleus retrograde signaling (PNRS) play essential roles in regulating nuclear gene expression during plant growth and development. Excessive reactive oxygen species can trigger PNRS.
Qingbo Zheng +8 more
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Tetrapyrrole utilization by Bacteroids ruminocola [PDF]
Journal of Bacteriology, 1977 Reduced versus oxidized difference spectra of whole cells and pyridine hemochromogens of heme-requiring isolates of Bacteroides ruminicola are altered when deuteroporphyrin or mesoporphyrin replaces protoheme as a growth factor. During growth in the presence of either deuteroporphyrin or mesoporphyrin, whole cells exhibit peaks at 545 t547, 515 to 518,
D R, McCall, D R, Caldwell
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Biosynthesis of the modified tetrapyrroles—the pigments of life [PDF]
Journal of Biological Chemistry, 2020 Modified tetrapyrroles are large macrocyclic compounds, consisting of diverse conjugation and metal chelation systems and imparting an array of colors to the biological structures that contain them. Tetrapyrroles represent some of the most complex small molecules synthesized by cells and are involved in many essential processes that are fundamental to ...
Donald A. Bryant +2 more
openaire +4 more sources