Results 91 to 100 of about 3,453,259 (246)

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

Inequality in the Caribbean: A Case Study of Hispaniola [PDF]

open access: yes, 2015
I examine the effects democratization, institution building, and colonization have on the political and economic stability and inequality in the Caribbean; specifically, I argue that each of these variables contributes to the political and economic ...

core   +1 more source

Penguasaan Konsep dan Keterampilan Proses Sains Siswa Kelas XII pada Materi Fluida Statis

open access: yesJurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2018
This study aims to describe the mastery of the concept and students' science process skills of static fluid materials. Descriptive research method. The study was conducted on 162 students of SMAN 1 Masbagik.
Ahmad Yadaeni   +2 more
doaj   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

THE USE OF DIFFICULTY LEARNING ASSESSMENT IN ASSESSING THE CONCEPT MASTERY OF BIOLOGY TEACHER CANDIDATES ON DEVELOPMENT STAGE OF ANIMAL EMBRIOLOGY

open access: yesJurnal Penelitian dan Pembelajaran IPA, 2017
This study aims to obtain a description of the mastery of the concept of biology teacher candidates through the study of learning difficulties in the concept of development stage of animal embryo.
Aa Juhanda
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Bagaimana Penguasaan Konsep Siswa pada Materi Fluida Statis?

open access: yesJurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2019
: The purpose of this study is to determine the increase of mastery concept in static fluid in inquiry learning with theoretical empirical reviews. The research method uses descriptive analysis.
Atika Isnaining Dyah   +2 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

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