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However, additional molecular interactions may render the amide form less stable; the amino group is expelled instead, resulting in an ester (Ser/Thr) or thioester (Cys) bond in place of the peptide bond. This chemical reaction is called an N-O acyl shift. The ester/thioester bond can be resolved in several ways:
The YxxCxxxF motif is found in the amino acid residues 121-131, whereas the GTS loop is found in amnio acid residues 31-33. The YxxCxxxF is composed of three invariant amino acid residues: Tyrosine (Y), Cysteine (C), and Phenylalanine (F). These sites are structurally separated in the folded eRF1 protein, however their main functions are very ...
1071 n/a Ensembl ENSG00000087237 n/a UniProt P11597 n/a RefSeq (mRNA) NM_000078 NM_001286085 n/a RefSeq (protein) NP_000069 NP_001273014 n/a Location (UCSC) Chr 16: 56.96 – 56.98 Mb n/a PubMed search n/a Wikidata View/Edit Human Cholesteryl ester transfer protein (CETP), also called plasma lipid transfer protein, is a plasma protein that facilitates the transport of cholesteryl esters and ...
Furthermore, the TetM protein is found to allow aminoacyl-tRNA molecules to bind to the ribosomal acceptor site, despite being concentrated with tetracyclines that would typically inhibit such actions. The TetM protein is regarded as a ribosomal protection protein, exhibiting GTPase activity that is dependent upon ribosomes.
The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis. The two ends of the polypeptide chain are referred to as the carboxyl terminus (C-terminus) and the amino terminus (N-terminus) based on the nature of the free group on each extremity.
Cells will use this phosphatidylserine to enter cells via apoptotic mimicry. The structure of this lipid differs in plants and animals, regarding fatty acid composition. In addition, phosphatidylserine plays an important role in the human brain content, as it makes up 13–15% of the phospholipids in the human cerebral cortex.
Polyester, plastics made of polymeric ester; Oligoester, a polymeric ester made of small number of ester monomers; Polyolester, an ester that is a synthetic oil used in refrigeration compressors; Thioester; Transesterification; Ether lipid, an ester that is a lipid and an ether; Acylal ((R 1 −C(=O)−O−)(R 2 −C(=O)−O−)CH−R 3)
Cholesterol oleate, a member of the cholesteryl ester family. Cholesteryl esters are a type of dietary lipid and are ester derivatives of cholesterol. The ester bond is formed between the carboxylate group of a fatty acid and the hydroxyl group of cholesterol. Cholesteryl esters have a lower solubility in water due to their increased ...