[HTML][HTML] Structure of full-length cobalamin-dependent methionine synthase and cofactor loading captured in crystallo

J Mendoza, M Purchal, K Yamada… - Nature …, 2023 - nature.com
Cobalamin-dependent methionine synthase (MS) is a key enzyme in methionine and folate
one-carbon metabolism. MS is a large multi-domain protein capable of binding and …

[HTML][HTML] Emerging Roles of Vitamin B12 in Aging and Inflammation

SY Simonenko, DA Bogdanova… - International Journal of …, 2024 - mdpi.com
Vitamin B12 (cobalamin) is an essential nutrient for humans and animals. Metabolically
active forms of B12-methylcobalamin and 5-deoxyadenosylcobalamin are cofactors for the …

Cobalt–Sulfur Coordination Chemistry Drives B12 Loading onto Methionine Synthase

R Mascarenhas, A Guha, Z Li, M Ruetz… - Journal of the …, 2023 - ACS Publications
Cobalt–sulfur (Co–S) coordination is labile to both oxidation and reduction chemistry and is
rarely seen in nature. Cobalamin (or vitamin B12) is an essential cobalt-containing …

[HTML][HTML] Distinct conformational states enable transglutaminase 2 to promote cancer cell survival versus cell death

C Aplin, KA Zielinski, S Pabit, D Ogunribido… - Communications …, 2024 - nature.com
Abstract Transglutaminase 2 (TG2) is a GTP-binding, protein-crosslinking enzyme that has
been investigated as a therapeutic target for Celiac disease, neurological disorders, and …

[HTML][HTML] Development of in-line anoxic small-angle X-ray scattering and structural characterization of an oxygen-sensing transcriptional regulator

G Illava, R Gillilan, N Ando - Journal of Biological Chemistry, 2023 - ASBMB
Oxygen-sensitive metalloenzymes are responsible for many of the most fundamental
biochemical processes in nature, from the reduction of dinitrogen in nitrogenase to the …

Dynamic mechanism and structural property analysis of microfluidic-obtained pea protein fiber

R Li, Y Feng, S Zhang, H Zhang, F Ren, J Liu… - Journal of Food …, 2024 - Elsevier
Although protein-based fibers have been developed, the preparation of inexpensive, safe
and environmentally friendly plant protein fibers is still a hot topic. Herein, we constructed …

The structural basis of protein conformational switching revealed by experimental and AlphaFold2 analyses

R Banerjee - Proceedings of the National Academy of …, 2023 - National Acad Sciences
Multidomain proteins that engage in conformational acrobatics in service of their cellular
functions are typically challenging candidates for structure elucidation. Depending on the …

[HTML][HTML] Architecture of the human G-protein-methylmalonyl-CoA mutase nanoassembly for B12 delivery and repair

R Mascarenhas, M Ruetz, H Gouda, N Heitman… - Nature …, 2023 - nature.com
G-proteins function as molecular switches to power cofactor translocation and confer fidelity
in metal trafficking. The G-protein, MMAA, together with MMAB, an adenosyltransferase …

Plant protein fibers obtained by microfluidic spinning technology: An insight into the fabrication, characterization, and digestive characteristics

R Li, Y Feng, S Zhang, H Zhang, J Wang - Food Bioscience, 2024 - Elsevier
Although protein-based biomimetic fibers are available, green and inexpensive protein-
based fibers remain a challenge to develop. Herein, a microfluidic chip was designed to …

Miffi: Improving the accuracy of CNN-based cryo-EM micrograph filtering with fine-tuning and Fourier space information

D Xu, N Ando - Journal of Structural Biology, 2024 - Elsevier
Efficient and high-accuracy filtering of cryo-electron microscopy (cryo-EM) micrographs is an
emerging challenge with the growing speed of data collection and sizes of datasets …