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The mitochondrial matrix contains the mitochondrial DNA, ribosomes, soluble enzymes, small organic molecules, nucleotide cofactors, and inorganic ions. [1] The enzymes in the matrix facilitate reactions responsible for the production of ATP , such as the citric acid cycle , oxidative phosphorylation , oxidation of pyruvate , and the beta ...
There are four groups of intramembrane proteases, distinguished by their catalytic mechanism: [5]. Metalloproteases: Site-2 protease (S2P) and S2P-like proteases [9]; Aspartyl proteases: this group includes presenilin, the active subunit of gamma secretase [10] [11] and signal peptide peptidases (SPPs) and SPP-like proteases, which are distantly related to presenilin but have opposite membrane ...
Voltage-gated ion-channels are usually ion-specific, and channels specific to sodium (Na +), potassium (K +), calcium (Ca 2+), and chloride (Cl −) ions have been identified. [1] The opening and closing of the channels are triggered by changing ion concentration, and hence charge gradient, between the sides of the cell membrane.
Protein metabolism denotes the various biochemical processes responsible for the synthesis of proteins and amino acids (anabolism), and the breakdown of proteins by catabolism. The steps of protein synthesis include transcription, translation, and post translational modifications.
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Forms nouns that denote a person who 'feeds on' the first element or part of the word Greek φαγιστής (phagistḗs) eater; see -phagia: Lotophagi-phagy: Forms nouns that denotes 'feeding on' the first element or part of the word Greek φαγία (phagia) eating; see -phagia: hematophagy: phall-phallus: Greek φαλλός (phallós ...
Ribbon diagrams, also known as Richardson diagrams, are 3D schematic representations of protein structure and are one of the most common methods of protein depiction used today. The ribbon depicts the general course and organization of the protein backbone in 3D and serves as a visual framework for hanging details of the entire atomic structure ...
In contrast, intramembranous ossification takes place directly beneath the periosteum, adjacent to the broken bone’s ends. [10] [12] A schematic of endochondral fracture, where B shows the location of both endochondral and intramembranous ossification.