Name | microcystin-LR |
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Synonyms |
akerstox
TOXIN,BLUE-GREENALGA EINECS 200-659-6 Microcystin-LR microcystin-lr solution 1,4,7,10,14,17,21-Heptaazacyclopentacosa-3,6,9,13,16,20-hexaene-11,22-dicarboxylic acid, 15-[3-[(aminoiminomethyl)amino]propyl]-3,6,9,13,16,20-hexahydroxy-18-[(1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenyl-1,3-heptadien-1-yl]-1,5,12,19-tetramethyl-2-methylene-8-(2-methylpropyl)-25-oxo-, (3E,5R,6E,8S,9E,11R,12S,13E,15S,16E,18S,19S,20E,22R)- toxin-lr microcystin LR MFCD00131607 1,4,7,10,14,17,21-Heptaazacyclopentacosane-11,22-dicarboxylic acid, 15-[3-[(aminoiminomethyl)amino]propyl]-18-[(1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenyl-1,3-heptadien-1-yl]-1,5,12,19-tetramethyl-2-methylene-8-(2-methylpropyl)-3,6,9,13,16,20,25-heptaoxo-, (5R,8S,11R,12S,15S,18S,19S,22R)- 5-L-Arginine-cyanoginosin (3E,5R,6E,8S,9E,11R,12S,13E,15S,16E,18S,19S,20E,22R)-15-(3-Carbamimidamidopropyl)-3,6,9,13,16,20-hexahydroxy-8-isobutyl-18-[(1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenyl-1,3-heptadien-1-yl]-1,5,12,19-tetramethyl-2-methylene-25-oxo-1,4,7,10,14,17,21-heptaazacyclopentacosa-3,6,9,13,16,20-hexaene-11,22-dicarboxylic acid 5-L-Arginine-microcystin LA microcystin-a MCYST-LR (5R,8S,11R,12S,15S,18S,19S,22R)-15-(3-Carbamimidamidopropyl)-8-isobutyl-18-[(1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenyl-1,3-heptadien-1-yl]-1,5,12,19-tetramethyl-2-methylene-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptaazacyclopentacosane-11,22-dicarboxylic acid CYANOGINOSIN-LR |
Description | Microcystin-LR is a potent inhibitor of type 1 and type 2A protein phosphatases (PP1 and PP2A), with IC50s of 1.7 nM and 0.04 nM, respectively. Sequence: Ala-D-Ala-Leu-D-{Bas}-Arg-{Oaa}-D-{Ggu}. |
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Related Catalog | |
Target |
IC50: 1.7 nM (PP1), 0.04 nM (PP2A)[1]. |
In Vitro | Microcystins are toxic molecules produced by cyanobacterial blooms due to water eutrophication[2]. Microcystin-LR proves to be a potent inhibitor of type 1 (IC50=1.7 nM) and type 2A (IC50= 0.04 nM) protein phosphatases. Microcystin-LR inhibits the activity of both type 1 and type 2A phosphatases >10-fold more potently than okadaic acid under the same conditions. Type 2A protein phosphatases in dilute mammalian cell extracts are found to be completely inhibited by 0.5 nM microcystin-LR while type 1 protein phosphatases are only slightly affected at this concentration[1]. |
References |
[2]. Lone Y, et al. Microcystin-LR Induced Immunotoxicity in Mammals. J Toxicol. 2016:8048125. |
Density | 1.3±0.1 g/cm3 |
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Molecular Formula | C49H74N10O12 |
Molecular Weight | 995.172 |
Flash Point | 11 °C |
Exact Mass | 994.548767 |
PSA | 340.64000 |
LogP | -1.54 |
Appearance | solid film |
Index of Refraction | 1.598 |
Water Solubility | ethanol: 1 mg/mL |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
|
Symbol |
GHS02, GHS06, GHS08 |
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Signal Word | Danger |
Hazard Statements | H225-H301-H311-H331-H370 |
Precautionary Statements | P210-P260-P280-P301 + P310-P311 |
Personal Protective Equipment | Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US) |
Hazard Codes | T+ |
Risk Phrases | 26/27/28-36/37/38-43 |
Safety Phrases | S26;S45;S36/S37/S39 |
RIDADR | UN 2811 6.1/PG 1 |
WGK Germany | 3 |
RTECS | GT2810000 |
Hazard Class | 6.1 |
~% 101043-37-2 |
Literature: Chemical Research in Toxicology, , vol. 11, # 3 p. 159 - 163 |