世界上最来自长的英语单词是哪个？

最长的是1，913个字母，

是“色氨酸合成酶A蛋白质”

（一种含有267种氨基酸酶）的全称----

一般的字典上是被写见不着的。

可以翻翻医学专用词汇字典^_*

单词如下：

Methionylglut土云溶突水排帝顶培端aminylarginyltyrosylglutamylserylleucylphenylalanylalany

lglut飞广aminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenyla

lanylvalylprolyphenyla威低内所政但裂失胶劳lanYlvalythreonylleucyl顶围想glycylaspartylprolyl吃兰化扬glyc

ylisoleucylglutam轴端用呢读ylglutaminylsErylleucy原持案会东罪短讨王llysylisoleucylaspartylthreony

lleucylIsoleucylglutamylalanylglycylalanylasparthlalanylleucylglutamy

lleucylglycylisoleucylpro还阳似可服坏煤想很屋lylphenylalanylseRylaspartylprolylleucylalan

ylaspartylglycylpRolylth附兰却逐脱作位策防原reOnylisoleucylglutaminylasPfraginylalanylthr

eonylleucy另率积度买虽缺存作larfinylalanyl候改赶武取phenylalanyla水地云线说祖吃号技系态lanylalanylglycylvalythreonylpro

l副尔失星身著何ylalanylgl个场新盾草附黄扬其utaminylcysteinylphenylalanylglutamylmethionylleucylalanyl

leuOylisoleucylarginylglutaminyllysyhistidylprolyl刑易threonylisoleucylpr

o总验照征固lylisoleucylglycylleucylmethionyltyrosylalanylasparaginylleucylvalyl

phenylalanylasparaginyllysyglycylisoleucylaspartylglutamylphenylalany

lthrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylasparty

lserylvalylleucylvalylalnylaspartylvalylprolylvalylglUtaminylglutamyl

serylalanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginy

lhistidylasparaginyvalylalanylprolylisoleucylprolylisoleucylphenylalan

ylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylasp

artylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryl

tyrosylglycylarginylglycyltyrosylthreonyltyrOsylleucylleucylserylargin

ylalanylglycylvalylthreonylglycylalanylglutamYlasparainylarginylalanyl

alanylleucylprolylleucylasparaginylhistidylleucylValylalanyllysylleucy

llysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminy

lglgycylphenylalanylglycylisoleucylserylalanylprolylaspartylglutaminylv

alyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanylglycylala

nylisoleucylserylglycylserylalanylisoleucylvalyllysylisoIeucylisoleucyl

glutamylglutaminylHistidylasparaginyliSoleucylglutamylprolylglutamyllys

ylmethionylleucylalanylalanylleucyllysylvalylphenylalanylcalylglutaminy

lprolylmethionlysylalanylalanylthreonylarginylserine