Protein Information

Name ATPase
Synonyms ATP7A; MK; ATPase; Cation transporting ATPase; ATP7A protein; ATPase Cu(2+) transporting alpha polypeptide; Copper pump 1; Copper transporting ATPase 1…

Compound Information

Name chlordecone
CAS

Reference List

PubMed Abstract RScore(About this table)
6196030 Chetty SC, Aldous CN, Rashatwar SS, Desaiah D: Effect of chlordecone on pH and temperature dependent substrate activation kinetics of rat brain synaptosomal ATPases. Biochem Pharmacol. 1983 Nov 1;32(21):3205-11.

Chlordecone, a polycyclic chlorinated insecticide known as Kepone, inhibited the activities of (Na+-K+) ATPase and Mg2+-ATPase in rat brain synaptosomes.
250(3,3,4,5) Details
6160190 Desaiah D: Comparative effects of chlordecone and mirex on rat cardiac ATPases and binding of 3H-catecholamines. J Environ Pathol Toxicol. 1980 Aug;4(1):237-48.

The in vitro data showed that chlordecone significantly inhibited mitochondrial Mg2+ ATPase and Na+--K+ ATPase in a concentration dependent manner with ID50 values of 5 x 10 (-8) and 2 x 10 (-6) M, respectively.
169(2,2,3,4) Details
2466998 Curtis LR: Chlordecone is a potent in vitro inhibitor of oligomycin-insensitive Mg2+ -ATPase of rat bile canaliculi-enriched fraction. J Biochem Toxicol. 1988 Winter;3:321-8.
163(2,2,2,3) Details
6158768 Desaiah D, Gilliland T, Ho IK, Mehendale HM: Inhibition of mouse brain synaptosomal ATPases and ouabain binding by chlordecone. Toxicol Lett. 1980 Sep;6(4-5):275-85.

The in vitro data show that chlordecone inhibits PNPPase, Na+-K+ ATPase, and Mg2+ ATPase activities with ID50 values of 4, 5 and 7 micrograms respectively.
88(1,1,2,3) Details
2416942 Desaiah D, Chetty CS, Rao KS: Chlordecone inhibition of calmodulin activated calcium ATPase in rat brain synaptosomes. J Toxicol Environ Health. 1985;16(2):189-95.
69(0,2,3,4) Details
2413407 Bansal SK, Desaiah D: Chlordecone toxicity: effect of withdrawal of treatment on ATPase inhibition. Neurotoxicology. 1985 Fall;6(3):103-7.
43(0,1,3,3) Details
2471839 Jinna RR, Uzodinma JE, Desaiah D: Age-related changes in rat brain ATPases during treatment with chlordecone. J Toxicol Environ Health. 1989;27(2):199-208.

These results suggest that the Na+ pump, Ca2+-ATPase, and ATP synthesizing enzymes are highly sensitive to chlordecone during early postnatal development.
38(0,1,2,3) Details
1691869 Maier WE, Costa LG: Na+/K (+)-ATPase in rat brain and erythrocytes as a possible target and marker, respectively, for neurotoxicity: studies with chlordecone, organotins and mercury compounds. Toxicol Lett. 1990 Apr;51(2):175-88.
34(0,1,1,4) Details
6159026 Mishra SK, Koury M, Desaiah D: Inhibition of calcium ATPase activity in rat brain and muscle by chlordecone. Bull Environ Contam Toxicol. 1980 Aug;25(2):262-8.
31(0,1,1,1) Details
6172757 Jordan JE, Grice T, Mishra SK, Desaiah D: Acute chlordecone toxicity in rats: a relationship between tremor and ATPase activities. Neurotoxicology. 1981 Oct;2(2):355-64.
14(0,0,2,4) Details
6175765 Desaiah D: Interaction of chlordecone with biological membranes. . J Toxicol Environ Health. 1981 Nov-Dec;8(5-6):719-30.

The order of sensitivity of the ATPases tested to chlordecone was: oligomycin-sensitive (mitochondrial) Mg2+-ATPase greater than Na+,K+-ATPase greater than Ca2+-ATPase greater than oligomycin-insensitive Mg2+-ATPase.
13(0,0,2,3) Details
1717700 Desaiah D, Pentyala SN, Trottman CH, Vig PJ, Sekhon BS: Combined effects of carbon tetrachloride and chlordecone on calmodulin activity in gerbil brain. J Toxicol Environ Health. 1991 Oct;34(2):219-28.

Ca (2+)-ATPase and calmodulin (CaM) activities were determined in gerbil brain P2 fraction and cytosol, respectively, at intervals of 0.5, 2, 6, 12, and 24 h after CCl4 administration.
4(0,0,0,4) Details
1701552 Kodavanti PR, Cameron JA, Yallapragada PR, Desaiah D: Effect of chlordecone (Kepone) on calcium transport mechanisms in rat heart sarcoplasmic reticulum. Pharmacol Toxicol. 1990 Sep;67(3):227-34.

Cardiac SR Ca2 (+)-ATPase. 45Ca-uptake and cAMP as well as calmodulin (CaM) dependent protein phosphorylation were measured.
3(0,0,0,3) Details
7690997 Kodavanti PR, Rao VC, Mehendale HM: Loss of calcium homeostasis leads to progressive phase of chlordecone-potentiated carbon tetrachloride hepatotoxicity. Toxicol Appl Pharmacol. 1993 Sep;122(1):77-87.

Hepatic plasma membrane Ca (2+)-ATPase (high and low affinity components) as well as 45Ca uptake by mitochondria and microsomes was measured using a range of calcium concentrations in Ca (2+)-EGTA-buffered medium at different time points after a single ip administration of CCl4 (100 microliters/kg).
2(0,0,0,2) Details
1696822 Kodavanti PR, Kodavanti UP, Mehendale HM: Altered hepatic energy status in chlordecone (Kepone)-potentiated CCl4 hepatotoxicity. Biochem Pharmacol. 1990 Aug 15;40(4):859-66.

Oligomycin-sensitive Mg2 (+)-ATPase was decreased significantly only starting at 6 hr (21%) after CCl4 administration, indicating that depletion of ATP at early time points was most likely due to rapid utilization consequent to toxic events.
2(0,0,0,2) Details
73494 Koch RB, Desaiah D, Glick B, Subba Rao DS, Stinson R: Antibody reactivation of kepone inhibited brain ATPase activities. Gen Pharmacol. 1977;8(4):231-4.

1(0,0,0,1) Details
66775 Desaiah D, Ho IK, Mehendale HM: Effects of kepone and mirex on mitochondrial Mg2+-ATPase activity in rat liver. Toxicol Appl Pharmacol. 1977 Feb;39(2):219-28.

1(0,0,0,1) Details
70207 Desaiah D, Ho IK, Mehendale HM: Inhibition of mitochondrial Mg2+ ATPase activity in isolated perfused rat liver by kepone. Biochem Pharmacol. 1977 Jun 15;26(12):1155-9.

1(0,0,0,1) Details
1696754 Teo S, Vore M: Mirex exposure inhibits the uptake of estradiol-17 beta (beta-D-glucuronide), taurocholate, and L-alanine into isolated rat hepatocytes. Toxicol Appl Pharmacol. 1990 Jul;104(3):411-20.


The insecticides mirex and chlordecone have previously been found to suppress the biliary excretion of a wide variety of compounds.
0(0,0,0,0) Details