Results 41 to 50 of about 4,121,048 (281)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Severe deviation in protein fold prediction by advanced AI: a case study

Scientific Reports
Artificial intelligence (AI) and deep learning are making groundbreaking strides in protein structure prediction. AlphaFold is remarkable in this arena for its outstanding accuracy in modelling proteins fold based solely on their amino acid sequences. In
Jacinto López-Sagaseta, Alejandro Urdiciain   +1 more
doaj   +1 more source

The Maturation Pathway of Nickel Urease

Inorganics, 2019
Maturation of urease involves post-translational insertion of nickel ions to form an active site with a carbamylated lysine ligand and is assisted by urease accessory proteins UreD, UreE, UreF and UreG.
Yap Shing Nim, Kam-Bo Wong
doaj   +1 more source

Expression and Characterization of Relaxin Family Peptide Receptor 1 Variants

Frontiers in Pharmacology, 2022
G-protein coupled receptors (GPCR) transduce extracellular stimuli into the cell interior and are thus centrally involved in almost all physiological-neuronal processes.
David Speck, Gunnar Kleinau, Mark Meininghaus, Antje Erbe, Antje Erbe, Alexandra Einfeldt, Alexandra Einfeldt, Michal Szczepek, Patrick Scheerer, Patrick Scheerer, Vera Pütter, Vera Pütter   +11 more
doaj   +1 more source

Going viral − Virus‐targeting nanobodies for research, diagnostics and therapy

FEBS Letters, EarlyView.
The increasing prevalence of viral diseases represents a major threat for global human health. Nanobodies, small binding fragments derived from camelid heavy‐chain antibodies, offer versatile tools for viral research, diagnostics, and antiviral therapy.
Domenic Ebert, Ulrich Rothbauer
wiley   +1 more source

Mutant p53R273H disrupts PDPK1 homodimerization and contributes to PDPK1 activation

Molecular Oncology, EarlyView.
How mutant p53R273H drives AKT signaling is unclear. We show that p53R273H, but not wild‐type, directly binds PDPK1 via a mutation‐dependent conformational change. This interaction disrupts inhibitory PDPK1 homodimerization and enhances AKT phosphorylation.
Mei Chee Lim, Alvin Kunyao Guo, Yoko Itahana, Srinivasaraghavan Kannan, Valerie Goh, Mingmin Ong, Terina Yan Wen Tay, Weiying Ye, Sabhashina Radha Krishnan, Jun Nishiyama, Chandra S Verma, Koji Itahana   +11 more
wiley   +1 more source

Crystal structure of pectocin M1 reveals diverse conformations and interactions during its initial step via the ferredoxin uptake system

FEBS Open Bio
Pectocin M1 (PM1), the bacteriocin from phytopathogenic Pectobacterium carotovorum which causes soft rot disease, has a unique ferredoxin domain that allows it to use FusA of the plant ferredoxin uptake system.
Nawee Jantarit, Hideaki Tanaka, Yuxi Lin, Young‐Ho Lee, Genji Kurisu   +4 more
doaj   +1 more source

Angiotensin and Endothelin Receptor Structures With Implications for Signaling Regulation and Pharmacological Targeting

Frontiers in Endocrinology, 2022
In conjunction with the endothelin (ET) type A (ETAR) and type B (ETBR) receptors, angiotensin (AT) type 1 (AT1R) and type 2 (AT2R) receptors, are peptide-binding class A G-protein-coupled receptors (GPCRs) acting in a physiologically overlapping context.
David Speck, Gunnar Kleinau, Michal Szczepek, Dennis Kwiatkowski, Rusan Catar, Aurélie Philippe, Aurélie Philippe, Patrick Scheerer, Patrick Scheerer   +8 more
doaj   +1 more source

Protein Crystallography for Metalloproteins

, 2010
The structures of proteins are very essential in understanding the functions of proteins. Protein crystallography is the most wide-used and precious method for structure determination of proteins. This chapter, Protein crystallography for metalloproteins,
Haifeng Hou, Yuhui Dong, Zengqiang Gao
core   +1 more source