AI Article Synopsis

  • Researchers created isotopically labeled forms of a protein called MsrB1 from mice by substituting its key amino acid selenocysteine with cysteine.
  • The study focuses on the NMR (Nuclear Magnetic Resonance) assignment for the reduced version of this protein, which is important for understanding its structure and function.
  • The isotopes 15N and 13C were used to enhance the sensitivity and resolution of the NMR analysis.

Article Abstract

Isotopically labeled, 15N and 15N/13C forms of recombinant methionine-r-sulfoxide reductase 1 (MsrB1, SelR) from Mus musculus were produced, in which catalytic selenocysteine was replaced with cysteine. We report here the 1H, 13C and 15N NMR assignment of the reduced form of this mammalian protein.

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12104-007-9039-7DOI Listing

Publication Analysis

Top Keywords

13c 15n
8
mus musculus
8
nmr assignments
4
assignments 13c
4
15n spectra
4
spectra methionine
4
methionine sulfoxide
4
sulfoxide reductase
4
reductase mus
4
musculus isotopically
4

Similar Publications

NMR resonance assignment of a ligand-binding domain of ephrin receptor A2.

Biomol NMR Assign

December 2024

Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe University, Max-von-Laue-Str. 7, 60438, Frankfurt/Main, Germany.

Ephrin receptors regulate intercellular communication and are thus involved in tumor development. Ephrin receptor A2 (EphA2), in particular, is overexpressed in a variety of cancers and is a proven target for anti-cancer drugs. The N-terminal ligand-binding domain of ephrin receptors is responsible for the recognition of their ligands, ephrins, and is directly involved in receptor activation.

View Article and Find Full Text PDF

L-arginine: glycine amidinotransferase (AGAT) gained academic interest as the rate-limiting enzyme in creatine biosynthesis and its role in the regulation of creatine homeostasis. Of clinical relevance is the diagnosis of patients with AGAT deficiency but also the potential role of AGAT as therapeutic target for the treatment of another creatine deficiency syndrome, guanidinoacetate N-methyltransferase (GAMT) deficiency. Applying a stable isotope-labeled substrate method, we utilized ARG 15N (ARG-δ2) and GLY 13C15N (GLY-δ3) to determine the rate of 1,2-13C,15N guanidinoacetate (GAA-δ5) formation to assess AGAT activity in various mouse tissue samples and human-derived cells.

View Article and Find Full Text PDF

Hydrolytic and oxidative damage to pyrimidine nucleobases in DNA represents a significant source of mutations in the human genome. To better understand how these lesions are incorporated and repaired in human cells, it is desirable to have ready access to isotopically enriched nucleosides for use in isotope tracing and mass spectrometry-based quantification experiments. Here we report on improved syntheses of deoxyuridine, deoxycytidine, 5-hydroxydeoxyuridine, and 5-hydroxydeoxycytidine nucleosides labeled with C and N.

View Article and Find Full Text PDF

Dental profiling is the process of analyzing teeth to identify a victim or skeletal remains when no antemortem data are available. Using dental profiling techniques, we can determine the age, sex, and population of the individual and gather data about their socio-economic status, personal habits, oral and systemic health, occupation, nutrition, family relationships, and psychological characteristics. The research aims to gain insights into the diet, health, socio-economic status, and demography of the Late Iron Age inhabitants of Illyrian origin who lived on the Croatian island of Korcula.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!