In the central nervous system, glycine binds to two recognition sites; one of them (G2), associated with the glutamate receptor, is insensitive to strychnine. Strychnine-insensitive sites were predominant in the forebrain areas and bound D-serine and D-alanine better than the respective L stereoisomers. [3H]D-serine was a more selective radioligand than [3H]glycine for the strychnine-insensitive sites. In the forebrain, the binding of both ligands was inhibited by the putative G2 receptor antagonists, 7-chlorokynurenate and 3-amino-1-hydroxy-2-pyrrolidone, while in pons and in spinal cord only the latter drug was effective. This may indicate the heterogeneity of strychnine-insensitive glycine recognition sites.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0024-3205(90)90100-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metastatic Anaplastic Thyroid Carcinoma to the Right Ventricle.
JACC Case Rep
December 2024
Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Anaplastic thyroid carcinoma (ATC) is a rare, yet extremely aggressive form of thyroid cancer characterized by rapid growth and early metastasis to distant sites. Cardiac involvement is very uncommon and the presentation of cardiac metastasis in ATC can vary widely, highlighting the importance of early clinical recognition. We describe an extremely rare case of metastatic ATC that spread to the right ventricle.
View Article and Find Full Text PDFPerovskite-Based Smart Eyeglasses as Noncontact Human-Computer Interaction.
Adv Mater
January 2025
Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing, 100080, P. R. China.
More than 70% of human information comes from vision. The eye is one of the most attractive sensing sites to collect biological parameters. However, it is urgent to develop a cost-effective and easy-to-use approach to monitor eyeball information in a minimally invasive way instead of current smart contact lenses or camera-based eyeglasses.
View Article and Find Full Text PDFReconstruction of 2 Independent Facial Defects Using A Single Paramedian Forehead Flap.
J Craniofac Surg
November 2024
Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina.
Background: The paramedian forehead flap (PMFF) has been well established for use in reconstruction limited to a single nasal outer layer defect and has recently gained recognition as an acceptable alternative to traditional methods of lower eyelid reconstruction. The use of a single, pedicled PMFF for the reconstruction of more than one defect has yet to be described.
Methods: A 59-year-old male patient was originally diagnosed with large squamous cell carcinoma resulting in radical resection and ipsilateral neck dissection.
NesT-NABind: a Nested Transformer for Nucleic Acid-Binding Site Prediction on Protein Surface.
J Chem Inf Model
January 2025
School of Information Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong New Area, Shanghai 201210, China.
Protein-nucleic acid interactions play a crucial role in many physiological processes. Identifying the binding sites of nucleotides on the protein surface is the prerequisite for understanding the molecular recognition mechanisms between the two types of macromolecules and also provides the information to design or generate molecule modulators against these sites to manipulate biological function according to specific requirements. Existing studies mainly focus on characterizing local surfaces around sites, often neglecting the interrelationships among these sites and the global protein information.
View Article and Find Full Text PDFIdentification of Key Amino Acids in the A Domains of Polymyxin Synthetase Responsible for 2,4-Diaminobutyric Acid Adenylation in NBRC3020 Strain.
ACS Chem Biol
January 2025
Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan.
Developing novel nonribosomal peptides (NRPs) requires a comprehensive understanding of the enzymes involved in their biosynthesis, particularly the substrate amino acid recognition mechanisms in the adenylation (A) domain. This study focused on the A domain responsible for adenylating l-2,4-diaminobutyric acid (l-Dab) within the synthetase of polymyxin, an NRP produced by NBRC3020. To date, investigations into recombinant proteins that selectively adenylate l-Dab─exploring substrate specificity and enzymatic activity parameters─have been limited to reports on A domains found in enzymes synthesizing l-Dab homopolymers (pldA from USE31 and pddA from NBRC15115), which remain exceedingly rare.
View Article and Find Full Text PDFWant 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!