Search results
Results From The WOW.Com Content Network
The other type of beta-lactamase is of the metallo type ("type B"). Metallo-beta-lactamases (MBLs) need metal ion(s) (1 or 2 Zn 2+ ions [2]) on their active site for their catalytic activities. [3] The structure of the New Delhi metallo-beta-lactamase 1 is given by 6C89. It resembles a RNase Z, from which it is thought to have evolved.
For example, Augmentin (FGP) is made of amoxicillin (a β-lactam antibiotic) and clavulanic acid (a β-lactamase inhibitor). The clavulanic acid is designed to overwhelm all β-lactamase enzymes, and effectively serve as an antagonist so that the amoxicillin is not affected by the β-lactamase enzymes. Another β-lactam/β-lactamase inhibitor ...
A lactam is a cyclic amide, and beta-lactams are named so because the nitrogen atom is attached to the β-carbon atom relative to the carbonyl. The simplest β-lactam possible is 2-azetidinone. β-lactams are significant structural units of medicines as manifested in many β-lactam antibiotics . [ 2 ]
Like beta-lactam antibiotics, they are processed by beta-lactamases to form an initial covalent intermediate. Unlike the case of beta-lactam antibiotics, the inhibitors act as suicide substrates (tazobactam and sulbactam) which ultimately leads to the degradation of the beta-lactamase. [7] Avibactam on the other hand does not contain a beta ...
NDM-1 functions through two zinc ions present in the active site that cause hydrolysis of the beta-lactams, rendering them ineffective. Experimental data has shown that zinc chelators can prevent the hydrolysis of beta-lactams mediated by metallo-beta-lactamases. [14]
212442 Ensembl ENSG00000147592 ENSMUSG00000025937 UniProt Q53H82 Q99KR3 RefSeq (mRNA) NM_016027 NM_145381 RefSeq (protein) NP_057111 NP_663356 Location (UCSC) Chr 8: 70.64 – 70.67 Mb Chr 1: 13.69 – 13.73 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Lactamase, beta 2 is a protein that in humans is encoded by the LACTB2 gene. Structure LACTB2 is located on the 8th chromosome ...
USAID delivers billions of dollars in humanitarian aid, funding that advocates say provides a critical lifeline to more than 100 countries at only a small fraction of the overall federal budget.
Clavulanic acid is a β-lactam drug that functions as a mechanism-based β-lactamase inhibitor.While not effective by itself as an antibiotic, when combined with penicillin-group antibiotics, it can overcome antibiotic resistance in bacteria that secrete β-lactamase, which otherwise inactivates most penicillins.