Results 91 to 100 of about 2,890,302 (318)

Design of minibinder proteins as universal antagonists against canine and human TNFα

open access: yesCommunications Biology
In this study, we resolve the complex structure of canine TNFα (cTNFα) trimer bound to nanobody molecules at a resolution of 3.1 Å using cryo-electron microscopy.
Jun Weng   +13 more
doaj   +1 more source

Structure of the plastic-degrading Ideonella sakaiensis MHETase bound to a substrate

open access: yesNature Communications, 2019
Plastic polymer PET degrading enzymes are of great interest for achieving sustainable plastics recycling. Here, the authors present the crystal structures of the plastic degrading bacterial enzymes PETase, MHETase in its apo-form and MHETase bound to a ...
Gottfried J. Palm   +9 more
doaj   +1 more source

How an Enzyme Can Be a Non-Enzyme [PDF]

open access: yesStructure, 2004
AbstractThe crystal structure of the endonuclease, ribonuclease III, in complex with a double-stranded RNA fragment reveals the mechanism that allows for switching between two functional forms of the enzyme.
openaire   +3 more sources

A Novel Histidinol Phosphate Phosphatase, Catalyzing the Penulimate Step of the Histidine Biosynthesis Pathway, from a Hyperthermophilic Archaeon Thermococcus onnurineus NA1

open access: yes, 2007
The entire gene cluster encoding enzymes involved in the histidine biosynthesis was analyzed in the complete genome of the hyperthermophilic archaeon Thermococcus onnurineus NA1 and it was found that an essential gene to encode the histidinol phosphate ...
이정현   +3 more
core  

The pyruvate generator is a common phenomenon in mitochondria from different rat and mouse brain regions

open access: yesFEBS Letters, EarlyView.
The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber   +7 more
wiley   +1 more source

A Whole-Process Visible Strategy for the Preparation of Rhizomucor miehei Lipase with Escherichia coli Secretion Expression System and the Immobilization

open access: yesMicrobial Cell Factories
Background Rhizomucor miehei (RM) lipase is a regioselective lipase widely used in food, pharmaceutical and biofuel industries. However, the high cost and low purity of the commercial RM lipase limit its industrial applications.
Mingjun Yang   +8 more
doaj   +1 more source

Enzyme activity and dynamics in near-anhydrous conditions

open access: yes, 2009
Water is widely assumed to be essential for life 1, although the exact molecular basis of this requirement is unclear 2-4. Water facilitates protein motions 5-9 and although enzyme activity has been demonstrated at low hydrations in organic solvents 10 ...
John Finney   +6 more
core  

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Angiotensin-converting enzyme genotype and late respiratory complications of mustard gas exposure [PDF]

open access: yes, 2008
Exposure to mustard gas frequently results in long-term respiratory complications. However the factors which drive the development and progression of these complications remain unclear.
Julian Thompson   +26 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

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