Results 81 to 90 of about 3,024,720 (334)

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

The effects of physical activity on pollutant particle deposition in the realistic human lung airways

open access: yes, 2021
Pollutant particles emission has been a major source of worry for many years due to their negative health impacts. For health risk assessment, it is critical to understand how to assess pollutant particles transportation and deposition (TD) in human lung
Islam, Mohammad S.   +4 more
core  

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Rod-shaped Clay Particles

open access: yesNature, 1938
THE minerals found in clays and soil colloids are usually considered to be plate-shaped and to have layer lattices built up from sheets of silicon – oxygen tetrahedra. This may be true in the majority of cases, but rod- or needle-shaped particles can also occur and should not be overlooked. Their presence may be due to one of the following two reasons.
openaire   +1 more source

Influence of manufacturing process on fundamental properties of NiCoCrAlY powders

open access: yesFenmo yejin jishu
NiCoCrAlY powders was prepared by plasma rotating electrode process (PREP), vacuum gas atomization (VGA) and agglomeration-sintering method (ASM), respectively.
TIAN Jiale   +4 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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   +3 more
wiley   +1 more source

ON THE DETERMINATION OF THE SHAPE-TYPE OF PARTICLES

open access: yesImage Analysis & Stereology, 2011
Based on observations on similar-looking randomly deformed particles inference is made about the original common shape-type of these particles by means of statistical tests.
openaire   +4 more sources

Experimental study on effect of particle shape on erosion intermittenting graded soils using transparent soil

open access: yesYantu gongcheng xuebao
Internal erosion is one of the main causes of seepage damage in natural sediments or geotechnical structures. In the seepage process, particle shape is an important factor affecting the development of erosion in soil.
ZHOU Hang 1, 2, WU Yuhan 1, 2, LIU Hanlong 1, 2, QI Geping 1, 2
doaj   +1 more source

Shape-Directed Microspinners Powered by Ultrasound

open access: yes, 2018
The propulsion of micro- and nanoparticles using ultrasound is an attractive strategy for the remote manipulation of colloidal matter using biocompatible energy inputs. However, the physical mechanisms underlying acoustic propulsion are poorly understood,
Syeda Sabrina (4926688)   +20 more
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy