Infrared difference spectroscopy of proteins: from bands to bonds

VA Lorenz-Fonfria - Chemical reviews, 2020 - ACS Publications
Infrared difference spectroscopy probes vibrational changes of proteins upon their
perturbation. Compared with other spectroscopic methods, it stands out by its sensitivity to …

Phytochrome structure and signaling mechanisms

NC Rockwell, YS Su, JC Lagarias - Annu. Rev. Plant Biol., 2006 - annualreviews.org
Phytochromes are a widespread family of red/far-red responsive photoreceptors first
discovered in plants, where they constitute one of the three main classes of …

Mutational analysis of Deinococcus radiodurans bacteriophytochrome reveals key amino acids necessary for the photochromicity and proton exchange cycle of …

JR Wagner, J Zhang, D Von Stetten, M Günther… - Journal of Biological …, 2008 - jbc.org
The ability of phytochromes (Phy) to act as photointerconvertible light switches in plants and
microorganisms depends on key interactions between the bilin chromophore and the …

Two ground state isoforms and a chromophore D-ring photoflip triggering extensive intramolecular changes in a canonical phytochrome

C Song, G Psakis, C Lang, J Mailliet, W Gärtner… - Proceedings of the …, 2011 - pnas.org
Phytochrome photoreceptors mediate light responses in plants and in many
microorganisms. Here we report studies using 1H–13C magic-angle spinning NMR …

Light-induced Proton Release of Phytochrome Is Coupled to the Transient Deprotonation of the Tetrapyrrole Chromophore*[boxs]

B Borucki, D von Stetten, S Seibeck, T Lamparter… - Journal of Biological …, 2005 - jbc.org
The P r→ P fr phototransformation of the bacteriophytochrome Agp1 from Agrobacterium
tumefaciens and the structures of the biliverdin chromophore in the parent states and the …

A new type of bacteriophytochrome acts in tandem with a classical bacteriophytochrome to control the antennae synthesis in Rhodopseudomonas palustris

E Giraud, S Zappa, L Vuillet, JM Adriano… - Journal of Biological …, 2005 - jbc.org
Phytochromes are chromoproteins found in plants and bacteria that switch between two
photointerconvertible forms via the photoisomerization of their chromophore. These two …

Vibrational couplings between protein and cofactor in bacterial phytochrome Agp1 revealed by 2D-IR spectroscopy

D Buhrke, N Michael, P Hamm - Proceedings of the National Academy of …, 2022 - pnas.org
Phytochromes are ubiquitous photoreceptor proteins that undergo a significant refolding of
secondary structure in response to initial photoisomerization of the chromophoric group …

[HTML][HTML] Two-photon absorption and photoionization of a bacterial phytochrome

TN Do, D Menendez, D Bizhga, EA Stojković… - Journal of molecular …, 2024 - Elsevier
Phytochromes constitute a family of photosensory proteins that are utilized by various
organisms to regulate several physiological processes. Phytochromes bind a bilin pigment …

Chromophore–protein interplay during the phytochrome photocycle revealed by step-scan FTIR spectroscopy

JA Ihalainen, E Gustavsson, L Schroeder… - Journal of the …, 2018 - ACS Publications
Phytochrome proteins regulate many photoresponses of plants and microorganisms. Light
absorption causes isomerization of the biliverdin chromophore, which triggers a series of …

The pigments

H Scheer - Light-harvesting antennas in photosynthesis, 2003 - Springer
The pigments of antenna systems have several functions. l: they absorb light efficiently, 2:
they transfer the excitation energy with minimum losses to the reaction centers, 3: they …