| N(H) | proton density |
|---|---|
| PIXE | particle-induced x-ray emission; proton-induced x-ray emission |
| PMF | platelet membrane fluidity; progressive massive fibrosis; proton motive force; pterygomaxillary foss... |
| pmf | proton motive force |
| PMR | patient meta-record; perinatal mortality rate; periodic medical review; physical medicine and rehabi... |
| 1H NMR | High resolution proton nuclear magnetic resonance |
|---|---|
| PIXE | Proton Induced X-ray Emission |
| PPI | Proton Pump Inhibitor |
| PD | Proton density |
| PMR | Proton magnetic resonance |
| proton | <physics> An elementary atomic particle with a positive charge and a mass of about 1 amu. (09 Oct 1997) |
|---|---|
| proton acceptor | <chemistry> A base, an anionic substance that acceptsa proton during an acid-basereaction. (09 Oct 1997) |
| proton ATPase | <enzyme> An ion pump that actively transports hydrogen ions across lipid bilayers in exchange for ATP. Major groups are the F-type ATPases, that run in reverse to synthesise ATP in bacterial, mitochondrial and chloroplast membranes (ATP synthase) and the V-type ATPases found in intracellular vesicles with an acidic lumen and on certain epithelial cells (e.g. Kidney intercalated cells). Gastric H/K ATPase is a proton ATPase. (18 Nov 1997) |
| proton donor | <chemistry> An acid, a susbstance that donates protons in an acid-base reduction reaction. (10 Jan 1998) |
| proton pump | Integral membrane proteins that transport protons across a membrane against a concentration gradient. This transport is driven by hydrolysis of ATP by hydrogen-transporting ATP synthase. (12 Dec 1998) |
| proton pump inhibitor | <pharmacology> A group of anti-ulcer medications which work by binding to H+/K+ ATPase, an enzyme which is found on the secretory surface of parietal cells. It thereby inhibits the final transport of hydrogen ions (via exchange with potasium) into the gastric lumen. Examples of proton pump inhibitors include omeprazole and lansoprazole. (27 Sep 1997) |
| proton-motive force | Energy that is generated by the transfer of protons or electrons across an energy-transducing membrane and that can be used for chemical, osmotic, or mechanical work. Proton-motive force can be generated by a variety of phenomena including the operation of an electron transport chain, illumination of a purple membrane, and the hydrolysis of ATP by a proton atpase. (12 Dec 1998) |
| protonema | Origin: NL, fr. Gr. First +, a thread. <botany> The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed. Source: Websters Dictionary (01 Mar 1998) |
| protoneuron | Hypothetical primitive neuron lacking polarization. Origin: proto-+ G. Neuron, nerve (05 Mar 2000) |
| protonophore | <cell biology> Ionophore that carries protons. Many uncouplers are protonophores. (18 Nov 1997) |
| protonotary | Pl> -ries . [LL. Protonotarius, fr. Gr. Prw^tos first + L. Notarius a shorthand writer, a scribe: cf. F. Protonotaire. 1. A chief notary or clerk. " My private prothonotary." 2. Formerly, a chief clerk in the Court of King's Bench and in the Court of Common Pleas, now superseded by the master. 3. A register or chief clerk of a court in certain States of the United States. 4. Formerly, one who had the charge of writing the acts of the martyrs, and the circumstances of their death; now, one of twelve persons, constituting a college in the Roman Curia, whose office is to register pontifical acts and to make and preserve the official record of beatifications. 5. The chief secretary of the patriarch of Constantinople. <zoology> Prothonotary warbler, a small American warbler (Protonotaria citrea). The general colour is golden yellow, the back is olivaceous, the rump and tail are ash-colour, several outer tail feathers are partly white. Source: Websters Dictionary (01 Mar 1998) |
| protons | Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion. (12 Dec 1998) |
| membrane-bound proton-translocating PPi synthase | <enzyme> From rhodospirillum rubrum; functions as an alternative coupling factor; n,n'-dicyclohexylcarbodiimide-sensitive; catalyses the phosphorylation of pi to ppi, the hydrolysis of ppi and the concomitant translocation of proton across the plasma membrane Registry number: EC 3.6.1.- Synonym: h(+)-ppi synthase (26 Jun 1999) |
|---|
Synonyms : H+ Pump, Proton Pump, Pump, H+, Pump, Proton, Pumps, Proton
Synonyms : deltapH, Chemiosmotic Mechanism, Proton Motive Force, Proton-Motive Forces, gradient, pH, pH, delta
Synonyms : H+-Pi Symporter, Proton-Phosphate Cotransporters, Proton-Phosphate Symporter, Cotransporters, Proton-Phosphate, H+ Pi Symporter, Proton Phosphate Cotransporters, Proton Phosphate Symporter, Proton Phosphate Symporters, Symporter, H+-Pi
Synonyms : ATPase, F(1)F(0), ATPase, F0F1, ATPase, H(+), Adenosine Triphosphatase Complex, F(0)F(1)-ATP Synthase, F-0-ATPase, F-1-ATPase, F0F1 ATPase, F1-ATPase, F1F0 ATPase Complex, H(+)-ATPase, H(+)-Transporting ATP Synthase, Acyl-Phosphate-Linked, H+ ATPase, ATPase, H+
Synonyms : Hydrogen Ion, Ion, Hydrogen, Ions, Hydrogen, Proton
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|---|---|---|---|
|
ÇÁ·ÎÅä´Ð¿¬Áúݼ¿ - »õâ
|
¾ÆÁÖ¾àǰ°ø¾÷ |
A05606611 | Calcium pantothenate, Carduus Marianus extract, Cyanocobalamin 0.1%, Nicotinamide, Pyridoxine HCl, Riboflavin, Thiamine HCl | ÀϹÝÀǾàǰ | ºñ±Þ¿© |
| protonitrate |
(pro
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
|
|---|---|
| proton |
an elementary particle of positive charge which forms the nucleus of the ordinary hydrogen atom of mass 1; along with neutrons, protons form the nuclei of atoms of all other elements. The proton is the unit of positive electricity; it has one quantum of charge (1.6 ×10-19 coulomb), equivalent to the electron but of opposite polarity, and its mass is 1.67 ×10-27 kilogram, approximately that of the hydrogen ion. Symbol p.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| proton p. |
a system for transporting protons across cell membranes, often exchanging them for other positively charged ions; it may be driven by energy supplied by ATP metabolism, light, or a flow of electrons. See also H+,K+-ATPase.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| proton pump i. |
gastric acid pump i.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| proton t. |
tautomerism in which an acidic proton is transferred from one position to another in the same molecule, e.g., keto-enol tautomerism. Called also prototropy.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| proton | a stable particle with positive charge equal to the negative charge of an electron |
|---|---|
| proton | a collider that collides beams of protons and antiprotons |
| proton | resonance of protons to radiation in a magnetic field |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|