Quote Originally Posted by silver_corolla
ACETYL*SERYL*TYROSYL*SERYL*ISO*LEUCYL*THREONYL*SER YL*PROLYL*SERYL*GLUTAMINYL*PHENYL*ALANYL*VALYL*PHE NYL*ALANYL*LEUCYL *SERYL*SERYL*VALYL*TRYPTOPHYL*ALANYL*ASPARTYL*PROL YL*ISOLEUCYL*GLUTAMYL*LEUCYL*LEUCYL*ASPARAGINYL*VA LYL*CYSTEINYL*THREONY L*SERYL*SERYL*LEUCYL*GLYCYL*ASPARAGINYL*GLUTAMINYL *PHENYL*ALANYL*GLUTAMINYL*THREONYL*GLUTAMINYL*GLUT AMINYL*ALANYL*ARGINYL *THREONYL*THREONYL*GLUTAMINYL*VALYL*GLUTAMINYL*GLU TAMINYL*PHENYL*ALANYL*SERYL*GLUTAMINYL*VALYL*TRYPT OPHYL*LYSYL*PROLYL*PH ENYL*ALANYL*PROLYL*GLUTAMINYL*SERYL*THREONYL*VALYL *ARGINYL*PHENYL*ALANYL*PROLYL*GLYCYL*ASPARTYL*VALY L*TYROSYL*LYSYL*VALYL *TYROSYL*ARGINYL*TYROSYL*ASPARAGINYL*ALANYL*VALYL* LEUCYL*ASPARTYL*PROLYL*LEUCYL*ISOLEUCYL*THREONYL*A LANYL*LEUCYL*LEUCYL*G LYCYL*THREONYL*PHENYL*ALANYL*ASPARTYL*THREONYL*ARG INYL*ASPARAGINYL*ARGINYL*ISOLEUCYL*ISOLEUCYL*GLUTA MYL*VALYL*GLUTAMYL*AS PARAGINYL*GLUTAMINYL*GLUTAMINYL*SERYL*PROLYL*THREO NYL*THREONYL*ALANYL*GLUTAMYL*THREONYL*LEUCYL*ASPAR TYL*ALANYL*THREONYL*A RGINYL*ARGINYL*VALYL*ASPARTYL*ASPARTYL*ALANYL*THRE ONYL*VALYL*ALANYL*ISOLEUCYL*ARGINYL*SERYL*ALANYL*A SPARAGINYL*ISOLEUCYL* ASPARAGINYL*LEUCYL*VALYL*ASPARAGINYL*GLUTAMYL*LEUC YL*VALYL*ARGINYL*GLYCYL*THREONYL*GLYCYL*LEUCYL*TYR OSYL*ASPARAGINYL*GLUT AMINYL*ASPARAGINYL*THREONYL*PHENYL*ALANYL*GLUTAMYL *SERYL*METHIONYL*SERYL*GLYCYL*LEUCYL*VALYL*TRYPTOP HYL*THREONYL*SERYL*AL ANYL*PROLYL*ALANYL*SERINE (1,181 letters) = Tobacco Mosaic Virus, Dahlemense Strain.
This word has appeared in the American Chemical Society's Chemical Abstracts and is thus considered by some to be the longest real word.
i think this one takes the cake