issue contents
January 2020 issue
research communications
This study presents the crystallization and X-ray diffraction analysis of the RING domain of mitochondrial E3 ubiquitin ligase 1 (MUL1-RING) and its complex with Ube2D2.
The recombinant production and crystallization of the PitA adhesin from the Streptococcus oralis pilus island 2-encoded sortase-dependent pilus is described. Limited proteolysis of PitA and its complex with terbium crystallophore gave greatly improved X-ray diffraction to 2.16 Å resolution and a sufficiently strong anomalous signal for terbium SAD phasing, respectively.
Open access
The crystal structure of the oxidized form of a human mitochondrial branched-chain aminotransferase (hBCATm) mutant was determined. The structural analysis supports the concept that a complex regulation mechanism is involved in hBCATm activity, which depends on the key residue Cys315.
PDB reference: human mitochondrial branched-chain aminotransferase, 6prx
Eisenia hydrolysis-enhancing protein from Aplysia kurodai, which is of interest as an indispensable protein for aiding the production of glucose from brown algae, has been purified and crystallized. Native and native-SAD X-ray diffraction data were collected at resolutions of 1.20 and 2.48 Å using wavelengths of 1.0 and 2.1 Å, respectively.
The bacterial transcriptional regulator of cobalt and nickel efflux, RcnR, has been crystallized with an oligonucleotide encompassing its DNA-binding site.
A purification protocol for the Escherichia coli RnlA–RnlB toxin–antitoxin complex has been established and the complex was crystallized and characterized using SAXS and native mass spectrometry.
Acinetobacter baumannii undecaprenyl pyrophosphate synthase, a key enzyme in bacterial cell-wall biosynthesis, has been shown via X-ray structures to bind three fragments identified from direct crystal soaking of a cocktailed screening library.