Protein Information

Name protein kinase A (protein family or complex)
Synonyms Protein kinase A; cAMP dependent protein kinase; cAMP dependent protein kinases

Compound Information

Name anthraquinone
CAS 9,10-anthracenedione

Reference List

PubMed Abstract RScore(About this table)
1466788 Jinsart W, Ternai B, Polya GM: Inhibition of myosin light chain kinase, cAMP-dependent protein kinase, protein kinase C and of plant Ca (2+)-dependent protein kinase by anthraquinones. Biol Chem Hoppe Seyler. 1992 Sep;373(9):903-10.

A range of anthraquinone derivatives inhibits the catalytic subunit of cAMP-dependent protein kinase (cAK).
82(1,1,1,2) Details
7582818 Zhao WQ, Polya GM, Wang BH, Gibbs ME, Sedman GL, Ng KT: Inhibitors of cAMP-dependent protein kinase impair long-term memory formation in day-old chicks. Neurobiol Learn Mem. 1995 Sep;64(2):106-18.

Neither anthraquinone nor the anthraquinone derivative anthraflavic acid, which have little effect on protein kinase A activity, affected memory retention.
3(0,0,0,3) Details
19409890 Xu L, Ting-Lou, Lv N, Zhu X, Chen Y, Yang J: Emodin augments calcium activated chloride channel in colonic smooth muscle cells by Gi/Go protein. Eur J Pharmacol. 2009 Aug 1;615(1-3):171-6. Epub 2009 May 3.

Gi/Go protein inhibits protein kinase A (PKA) and protein kinase C (PKC), and PKA and PKC reduced ClCA currents.
Emodin is a natural anthraquinone in rhubarb.
2(0,0,0,2) Details
7547985 Faltynek CR, Schroeder J, Mauvais P, Miller D, Wang S, Murphy D, Lehr R, Kelley M, Maycock A, Michne W, et al.: Damnacanthal is a highly potent, selective inhibitor of p56lck tyrosine kinase activity. Biochemistry. 1995 Sep 26;34(38):12404-10.

Damnacanthal, an anthraquinone isolated from a plant extract, was found to be a potent, selective inhibitor of p56lck tyrosine kinase activity.
Damnacanthal had > 100-fold selectivity for p56lck over the serine/threonine kinases, protein kinase A and protein kinase C, and > 40-fold selectivity for p56lck over four receptor tyrosine kinases.
1(0,0,0,1) Details
12794753 Yeh FT, Wu CH, Lee HZ: Signaling pathway for aloe-emodin-induced apoptosis in human H460 lung nonsmall carcinoma cell. Int J Cancer. 2003 Aug 10;106(1):26-33.

Aloe-emodin (1,8-dihydroxy-3-(hydroxymethyl)-anthraquinone) is an active component from the root and rhizome of Rheum palmatum that has been reported to exhibit antitumor effects through an unknown mechanism.
Aloe-emodin (40 microM)-induced apoptosis of H460 cells involves modulation of cAMP-dependent protein kinase, protein kinase C, Bcl-2, caspase-3 and p38 protein expression.
2(0,0,0,2) Details
10083837 Yim H, Lee YH, Lee CH, Lee SK: Emodin, an anthraquinone derivative isolated from the rhizomes of Rheum palmatum, selectively inhibits the activity of casein kinase II as a competitive inhibitor. Planta Med. 1999 Feb;65(1):9-13.

We measured IC50 values for emodin on the activities of several Ser/Thr protein kinases, including cAMP-dependent protein kinase (PKA), protein kinase C (PKC), cdc2, casein kinases I (CKI) and CKII.
1(0,0,0,1) Details