Protein Information

Name CA III
Synonyms CA III; Carbonic anhydrase C; CA3; CAIII; Car3; Carbonate dehydratase III; Carbonic anhydrase 3; Carbonic anhydrase III…

Compound Information

Name piperazine
CAS piperazine

Reference List

PubMed Abstract RScore(About this table)
12941378 Ayala GX, Tapia R: Expression of heat shock protein 70 induced by 4-aminopyridine through glutamate-mediated excitotoxic stress in rat hippocampus in vivo. Neuropharmacology. 2003 Oct;45(5):649-60.

The first signs of histological neuronal damage were observed in CA1 and CA3 subfields of the perfused hippocampus 3 h after treatment and progressed until reaching a maximal neuronal loss at 24 h.
The N-methyl-D-aspartate (NMDA) receptor antagonists MK-801 and (3-phosphonopropyl)-piperazine-2-carboxylic acid prevented the seizures, the neurodegeneration and the expression of HSP70.
1(0,0,0,1) Details
15146049 Lozovaya NA, Grebenyuk SE, Tsintsadze TSh, Feng B, Monaghan DT, Krishtal OA: Extrasynaptic NR2B and NR2D subunits of NMDA receptors shape 'superslow' afterburst EPSC in rat hippocampus. J Physiol. 2004 Jul 15;558(Pt 2):451-63. Epub 2004 May 14.

In conditions of facilitated synaptic release, CA3/CA1 synapses generate anomalously slow NMDA receptor-mediated EPSCs (EPSC (NMDA)).
In contrast, ifenprodil, a highly selective NR2B antagonist, and [+/-]-cis-1-[phenanthren-2yl-carbonyl] piperazine-2,3-dicarboxylic acid (PPDA), a competitive antagonist that is moderately selective for NR2D subunits, more strongly inhibited the late component of the afterburst EPSC (NMDA).
1(0,0,0,1) Details
12166089 Tsuji K: [Effect of (+/-)-pindolol on the central 5-HT1A receptor by the use of in vivo microdialysis and hippocampal slice preparations]. Nihon Shinkei Seishin Yakurigaku Zasshi. 2002 Jun;22(3):85-95.


The 5-HT and other 5-HT1A receptor agonists, flesinoxan and 8-hydroxy-2- (di-n-propylamino) tetralon (8-OH-DPAT), significantly decreased the population excitatory postsynaptic potential (EPSP) in the CA3-CA1 excitatory synapse in a dose-dependent manner.
1(0,0,0,1) Details
19684252 Costa BM, Feng B, Tsintsadze TS, Morley RM, Irvine MW, Tsintsadze V, Lozovaya NA, Jane DE, Monaghan DT: N-methyl-D-aspartate (NMDA) receptor NR2 subunit selectivity of a series of novel piperazine-2,3-dicarboxylate derivatives: preferential blockade of extrasynaptic NMDA receptors in the rat hippocampal CA3-CA1 synapse. J Pharmacol Exp Ther. 2009 Nov;331(2):618-26. Epub 2009 Aug 14.
82(1,1,1,2) Details
11172755 Inoue T, Wang F, Moriguchi A, Shirakawa K, Matsuoka N, Goto T: FK960, a novel potential anti-dementia drug, enhances high K (+)-evoked release of somatostatin from rat hippocampal slices. Brain Res. 2001 Feb 16;892(1):111-7.

We have demonstrated that FK960 [N-(4-acetyl-1-piperazinyl)-p-fluorobenzamide monohydrate], a novel putative anti-dementia drug of piperazine derivative, ameliorates memory deficits in a variety of animal models of dementia in rats and monkeys, and also augments long-term potentiation (LTP) in the mossy fiber-CA3 pathway in guinea-pig hippocampal slices.
31(0,1,1,1) Details
18627905 Vullo D, Nishimori I, Scozzafava A, Supuran CT: Carbonic anhydrase activators: Activation of the human cytosolic isozyme III and membrane-associated isoform IV with amino acids and amines. Bioorg Med Chem Lett. 2008 Aug 1;18(15):4303-7. Epub 2008 Jun 28.

An activation study of the human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms hCA III (cytosolic) and IV (membrane-associated) with a series of natural and non-natural amino acids and aromatic/heterocyclic amines is reported. hCA III was efficiently activated by d-His, serotonin, pyridyl-alkylamines, and aminoethyl-piperazine/morpholine (K (A) s of 91nM-1.12microM), whereas the best hCA IV activators were 4-amino-phenylalanine, serotonin, and 4-(2-aminoethyl)-morpholine (K (A) s of 79nM-3.14microM).
Precise steric and electronic requirements are needed to be present in the molecules of effective CA III/IV activators, in order to assure an adequate fit within the enzyme active site for the formation of the enzyme-activator complex, and for efficient proton transfer processes between the active site and the reaction medium.
2(0,0,0,2) Details