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. 2010 Apr 28;8(5):1550–1566. doi: 10.3390/md8051550

Table 4.

Modulation of protein phosphatase 1 (PP1) activity.

Species S# Amount μg/mL PP1 activation/inhibition

aqueous organic aqueous organic

unheated heate A B M unheated heated A B M
d
Callyspongia plicifera 9 58 48 23 44
Ircinia felix 59 283/78* 273 x2
Ircinia felix 93 244/70* 200 176 275 790 x1.5 33 67 100
Ircinia strobilina 56 192/55* 177 x1.4
Ircinia cf. abseits 13 346/41* 227 x1.5
2
Neofibularia nolitangere 83 28 54 167 67 100 100
Spheciospongia 69 78 50
vesparium
Verongula gigantea 44 388/138* 319 x2
Verongula rigida 38 164/54* 130 x2
Unidentified 1 21 73 117 673 100 100 100

Organic extracts: A (acetone), B (butanol), M (methanol).

Activation is indicated in italics, and denotes a factor by which the PP1 activity is enhanced.

Inhibition is indicated in normal text, and denotes the % of inhibition.

*

protein.

S# sample number.