▁See ▁also ▁ ▁National ▁Register ▁of ▁Historic ▁Places ▁list ings ▁in ▁Jack ▁County , ▁Texas ▁List ▁of ▁county ▁cour th ouses ▁in ▁Texas ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Jack ▁County , ▁Texas ▁Category : Ne oc lass ical ▁architecture ▁in ▁Texas ▁Category : G overn ment ▁buildings ▁completed ▁in ▁ 1 9 4 0 ▁Category : 1 9 4 0 ▁establish ments ▁in ▁Texas <0x0A> </s> ▁On nam ide ▁A ▁is ▁a ▁bio active ▁natural ▁product ▁found ▁in ▁The on ella ▁sw inho ei , ▁a ▁species ▁of ▁marine ▁sp on ge ▁whose ▁genus ▁is ▁well ▁known ▁for ▁yield ing ▁a ▁diverse ▁set ▁of ▁bi olog ically ▁active ▁natural ▁products , ▁including ▁the ▁sw in hol ides ▁and ▁poly the on am ides . ▁It ▁be ars ▁struct ural ▁similar ities ▁to ▁the ▁p eder ins , ▁a ▁family ▁of ▁comp ounds ▁known ▁to ▁in hib it ▁protein ▁synth esis ▁in ▁e uk ary otic ▁cells . ▁On nam ide ▁A ▁and ▁its ▁analog ues ▁have ▁attract ed ▁academic ▁interest ▁due ▁to ▁their ▁c yt ot ox icity ▁and ▁potential ▁for ▁comb ating ▁the ▁growth ▁and ▁pro l ifer ation ▁of ▁cancer ▁cells . ▁ ▁History ▁On nam ide ▁A ▁was ▁first ▁isolated ▁in ▁ 1 9 8 8 ▁from ▁The on ella ▁s pp ., ▁a ▁genus ▁of ▁marine ▁sp ong es ▁res iding ▁off ▁the ▁coast ▁of ▁Ok ina wa , ▁Japan , ▁as ▁part ▁of ▁a ▁bio ass ay ▁aim ed