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Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer compound made from the monomer N-vinylpyrrolidone. [1] PVP is available in a range of molecular weights and related viscosities, and can be selected according to the desired application properties.
The cross-linked form of PVP is used as a disintegrant (see also excipients) in pharmaceutical tablets. [1] PVPP is a highly cross-linked version of PVP, making it insoluble in water, though it still absorbs water and swells very rapidly generating a swelling force. This property makes it useful as a disintegrant in tablets.
CAPS is the common name for 3-(Cyclohexylamino)-1-propanesulfonic acid, a chemical used as buffering agent in biochemistry. The similar substance N-cyclohexyl-2-hydroxyl-3-aminopropanesulfonic acid (CAPSO) is also used as buffering agent in biochemistry. Its useful pH range is 9.7-11.1.
Capping may refer to: the creation of five-prime (5') caps in a cell nucleus Capping enzyme; Cap (sport), making an appearance in a game at international level; Ambulance chasing, the practice of lawyers seeking clients at a disaster site; Jakugo, or capping phrase, a response to a Zen kōan; Capping stunt, a New Zealand university student prank
5' cap structure. Capping is a three-step process that utilizes the enzymes RNA triphosphatase, guanylyltransferase, and methyltransferase. [1] [2] Through a series of three steps, the cap is added to the first nucleotide's 5' hydroxyl group of the growing mRNA strand while transcription is still occurring.
12332 Ensembl ENSG00000042493 ENSMUSG00000056737 UniProt P40121 P24452 RefSeq (mRNA) NM_001256139 NM_001256140 NM_001747 NM_001320732 NM_001320733 NM_001320734 NM_001042534 NM_001271395 NM_001271415 NM_007599 RefSeq (protein) NP_001243068 NP_001243069 NP_001307661 NP_001307662 NP_001307663 NP_001738 n/a Location (UCSC) Chr 2: 85.39 – 85.42 Mb Chr 6: 72.52 – 72.54 Mb PubMed search Wikidata ...
829 12340 Ensembl ENSG00000116489 ENSMUSG00000070372 UniProt P52907 P47753 RefSeq (mRNA) NM_006135 NM_009797 NM_001355044 RefSeq (protein) NP_006126 NP_033927 NP_001341973 Location (UCSC) Chr 1: 112.62 – 112.67 Mb Chr 3: 104.73 – 104.77 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse F-actin-capping protein subunit alpha-1 is a protein that in humans is encoded by the CAPZA1 gene ...
Reducing agents and oxidizing agents are the ones responsible for corrosion, which is the "degradation of metals as a result of electrochemical activity". [3] Corrosion requires an anode and cathode to take place. The anode is an element that loses electrons (reducing agent), thus oxidation always occurs in the anode, and the cathode is an ...