Every year Lions Clubs all over the nation give free dictionaries to third grade elementary students. On the last page of the dictionary is the longest word in the English language. It's fun to watch the students faces when they are asked if they can pronounce the word. I can't pronounce it. Can you?
The longest word in the english language refers to a distinct part of DNA.
This word is a "Tryptophan synthetase A protein", an enzyme that has 267 amino acids, and makes a record of 1,909 letters. It is the term for the formula C-1289 H-2051 N-343 O-375 S8.:
Methionylglutaminylarginyltyrosylglutamylserylleuc ylphen-
ylalanylalanylglutaminylleucyllysylglutamylarginyl lysylgluta-
mylglysylalanylphenylalanylvalylprolylphenylalanyl yalylthre-
onylleucylglcycylaspartylprolylglicylisoleucygluta mylgluta-
minlserylleucyllysylisoleucylaspartylthreonylleucy lisoleu-
cylglutamylalanylglyclyalanylaspartylalanylleucygl utamylle-
ucylgluycylisoleucylproluylphenylalanyserylasparty prolylleu-
celalanylaspartylglycylprolylthreonylisolleucyglut aminylaspa-
raginylalanythreonylleucylarginylalanylphenylalany lalanylal-
anylglycylvalylthreonylprolylalanylglutaminylcyste inylphen-
ylalanylglglutamylmethionylleucyalanylleucylisoleu cylarginyl-
glutaminyllysylhistidylprolyuthreonylisoleucylprol ylisoleuc-
ylglycylleucylleucylmethionyltyrosylalanylasbaragi nylleucyl-
valylphenylalanylsparaginyyllysylglycylisoleucylas partylglut-
amylphenylalanylyltyrosylalanylglutaminylcysteinyl glutamyll-
ysylvalylglycylvalylspartylserylvalylleucylvallala nylaspart-
ylvalylprolylvalvlglutaminylglutamylserylalanylpro lylpheny-
lalalrginylglutaminylalanylalanylleucylarginylhist idylasp-
araginylvalylalalprolylisoleucylphenylalanylisoleu cylcystei-
nylprolyprolylaspartylalanylaspartylaspartyspartyl eucylle-
ucylarginylglutaminylisoleucylalanylseryltyroslgly cylargin-
ylglycyltyrosylthreonyltyrosylleucylleucylserylarg inlalanyl-
glycylvalylthreonylglycylalanylglutamylasparaginyl arginyla-
nylalanylleucylprolylleucylaspaaginylhistidylleucy lvalylalan-
yllysylleucyllysylglutamyltyrosylasparagimylalanyl alanypro-
lylprolylleucylglutaminylglycylphenlalanylglycylis oleyucyls-
erylalanylprolylaspartylglutaminylvalyllysylalanyl alanylisol-
eucylalspartylalanylglycylalanylalanylglycylalanyl asoleucylse-
rylglycylserylalanylisoleucylbalyllysylisoleucylis oleucylgluta-
mylglutaminylhistidylasparaginylisoleucylglutamylp ronylglu-0
tamyllysylmethionylluecylalanylalanyoeucyllysylval ylpheny-
lalanylvalylglutamilylprolylmethionyllysylalanylal anylthreo-
nylarginylserine.
ylalanylalanylglutaminylleucyllysylglutamylarginyl
mylglysylalanylphenylalanylvalylprolylphenylalanyl
onylleucylglcycylaspartylprolylglicylisoleucygluta
minlserylleucyllysylisoleucylaspartylthreonylleucy
cylglutamylalanylglyclyalanylaspartylalanylleucygl
ucylgluycylisoleucylproluylphenylalanyserylasparty
celalanylaspartylglycylprolylthreonylisolleucyglut
raginylalanythreonylleucylarginylalanylphenylalany
anylglycylvalylthreonylprolylalanylglutaminylcyste
ylalanylglglutamylmethionylleucyalanylleucylisoleu
glutaminyllysylhistidylprolyuthreonylisoleucylprol
ylglycylleucylleucylmethionyltyrosylalanylasbaragi
valylphenylalanylsparaginyyllysylglycylisoleucylas
amylphenylalanylyltyrosylalanylglutaminylcysteinyl
ysylvalylglycylvalylspartylserylvalylleucylvallala
ylvalylprolylvalvlglutaminylglutamylserylalanylpro
lalalrginylglutaminylalanylalanylleucylarginylhist
araginylvalylalalprolylisoleucylphenylalanylisoleu
nylprolyprolylaspartylalanylaspartylaspartyspartyl
ucylarginylglutaminylisoleucylalanylseryltyroslgly
ylglycyltyrosylthreonyltyrosylleucylleucylserylarg
glycylvalylthreonylglycylalanylglutamylasparaginyl
nylalanylleucylprolylleucylaspaaginylhistidylleucy
yllysylleucyllysylglutamyltyrosylasparagimylalanyl
lylprolylleucylglutaminylglycylphenlalanylglycylis
erylalanylprolylaspartylglutaminylvalyllysylalanyl
eucylalspartylalanylglycylalanylalanylglycylalanyl
rylglycylserylalanylisoleucylbalyllysylisoleucylis
mylglutaminylhistidylasparaginylisoleucylglutamylp
tamyllysylmethionylluecylalanylalanyoeucyllysylval
lalanylvalylglutamilylprolylmethionyllysylalanylal
nylarginylserine.
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