Protein Information

Name alpha tubulin
Synonyms Alpha tubulin ubiquitous; Tubulin K alpha 1; Tubulin alpha ubiquitous chain; K alpha 1; K ALPHA 1 protein; alpha tubulin; K alpha 1s; K ALPHA 1 proteins…

Compound Information

Name chlorpyrifos
CAS

Reference List

PubMed Abstract RScore(About this table)
19632257 Grigoryan H, Schopfer LM, Peeples ES, Duysen EG, Grigoryan M, Thompson CM, Lockridge O: Mass spectrometry identifies multiple organophosphorylated sites on tubulin. Toxicol Appl Pharmacol. 2009 Oct 15;240(2):149-58. Epub 2009 Jul 24.

Chlorpyrifos oxon bound covalently to tyrosines 83, 103, 108, 161, 224, 262, 272, 357, and 399 in bovine alpha tubulin, and to tyrosines 50, 51, 59, 106, 159, 281, 310, and 340 in bovine beta tubulin.
81(1,1,1,1) Details
18502412 Grigoryan H, Schopfer LM, Thompson CM, Terry AV, Masson P, Lockridge O: Mass spectrometry identifies covalent binding of soman, sarin, chlorpyrifos oxon, diisopropyl fluorophosphate, and FP-biotin to tyrosines on tubulin: a potential mechanism of long term toxicity by organophosphorus agents. Chem Biol Interact. 2008 Sep 25;175(1-3):180-6. Epub 2008 Apr 22.

It was found that OP bound to tyrosine 83 of alpha tubulin in peptide TGTYR, tyrosine 59 in beta tubulin peptide YVPR, tyrosine 281 in beta tubulin peptide GSQQYR, and tyrosine 159 in beta tubulin peptide EEYPDR.
1(0,0,0,1) Details
19631231 Grigoryan H, Lockridge O: Nanoimages show disruption of tubulin polymerization by chlorpyrifos oxon: implications for neurotoxicity. Toxicol Appl Pharmacol. 2009 Oct 15;240(2):143-8. Epub 2009 Jul 22.

The two labeled tyrosines in polymerized tubulin were Tyr 103 in EDAANNYR of alpha tubulin, and Tyr 281 in GSQQYR of beta tubulin.
1(0,0,0,1) Details
12140181 Schuh RA, Lein PJ, Beckles RA, Jett DA: Noncholinesterase mechanisms of chlorpyrifos neurotoxicity: altered phosphorylation of Ca2+/cAMP response element binding protein in cultured neurons. Toxicol Appl Pharmacol. 2002 Jul 15;182(2):176-85.

Western blot analysis of lysates from primary cultures of cortical neurons exposed to CPF, CPF-oxon, or trichloropyridinol (TCP) for 1 h and cultures exposed to trichloropyridinol (TCP) for 7 days indicated that all exposures increased the level of the phosphorylated (activated) form of CREB (pCREB), without significant changes in total CREB or alpha-tubulin.
1(0,0,0,1) Details
17321052 Prendergast MA, Self RL, Smith KJ, Ghayoumi L, Mullins MM, Butler TR, Buccafusco JJ, Gearhart DA, Terry AV Jr: Microtubule-associated targets in chlorpyrifos oxon hippocampal neurotoxicity. Neuroscience. 2007 Apr 25;146(1):330-9. Epub 2007 Feb 22.

Cytotoxicity (somatic uptake of the non-vital marker propidium iodide), as well as IR of alpha-tubulin and microtubule-associated protein-2 (a/b) [MAP-2], was assessed 1, 3, and 7 days after the start of CPO exposure.
1(0,0,0,1) Details
20021063 Sachana M, Flaskos J, Hargreaves AJ: Effects of Chlorpyrifos and Chlorpyrifos-Methyl on the Outgrowth of Axon-Like Processes, Tubulin, and GAP-43 in N2a Cells. Toxicol Mech Methods. 2005;15(6):405-10.

0(0,0,0,0) Details