Search results
Results from the WOW.Com Content Network
Glutamate transporters are a family of neurotransmitter transporter proteins that move glutamate – the principal excitatory neurotransmitter – across a membrane. The family of glutamate transporters is composed of two primary subclasses: the excitatory amino acid transporter ( EAAT ) family and vesicular glutamate transporter ( VGLUT ) family.
GLUT5 is a fructose transporter expressed on the apical border of enterocytes in the small intestine. [5] GLUT5 allows for fructose to be transported from the intestinal lumen into the enterocyte by facilitated diffusion due to fructose's high concentration in the intestinal lumen.
The sodium/glutamate symporter, also known as glutamate permease, is a transmembrane protein family found in bacteria and archaea. These proteins are symporters that are responsible for the sodium-dependent uptake of extracellular glutamate into the cell. They are integral membrane proteins located in the bacterial inner membrane. [1]
The basic fold of the MFS transporter is built around 12, [4] or in some cases, 14 transmembrane helices [5] (TMH), with two 6- (or 7- ) helix bundles formed by the N and C terminal homologous domains [6] of the transporter which are connected by an extended cytoplasmic loop. The two halves of the protein pack against each other in a clam-shell ...
Gamma-glutamyltransferase (also γ-glutamyltransferase, GGT, gamma-GT, gamma-glutamyl transpeptidase; [1] EC 2.3.2.2) is a transferase (a type of enzyme) that catalyzes the transfer of gamma-glutamyl functional groups from molecules such as glutathione to an acceptor that may be an amino acid, a peptide or water (forming glutamate).
In animals, fungi, and bacteria, GABA-T helps facilitate a reaction that moves an amine group from GABA to 2-oxoglutarate, and a ketone group from 2-oxoglutarate to GABA. [4] [5] [6] This produces succinate semialdehyde and L-glutamate. [4] In plants, pyruvate and glyoxylate can be used in the place of 2-oxoglutarate.
In bacteria, the ammonia is assimilated to amino acids via glutamate and aminotransferases. [2] In plants, the enzyme can work in either direction depending on environment and stress. [ 3 ] [ 4 ] Transgenic plants expressing microbial GLDHs are improved in tolerance to herbicide, water deficit, and pathogen infections. [ 5 ]
Glutamate racemase (MurI) provides multiple functions for bacterial cells. MurI is an enzyme which is primarily known for its role in synthesizing bacterial cell walls. While performing the function of cell wall synthesis, MurI also acts as a gyrase inhibitor, preventing gyrase from binding to DNA.