Methionylglutaminylarginyl...serine

Methionylglutaminylarginyl...serine is the chemical name for the tryptophan synthase A protein which is made up of 267 amino acids. The chemical formula is C₁₂₈₉H₂₀₅₁N₃₄₃O₃₇₅S₈

It is one of the longest words in English.

According to the Guinness World Records, 18th edition, It is the longest chemical name.

In its complete form, the 1,913 letter word is :"Methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylglutaminylleu-":"cyllysylglutamylarginyllysylglutamylglysylalanylphenylalanylvalylprolylphenylalanyl-":"yalylthreonylleucylglcycylaspartylprolylglicylisoleucyglutamylglutaminlserylleucyll-":"ysylisoleucylaspartylthreonylleucylisoleucylglutamylalanylglyclyalanylaspartylalany-":"lleucyglutamylleucylgluycylisoleucylproluylphenylalanyserylaspartyprolylleucelalany-":"laspartylglycylprolylthreonylisolleucyglutaminylasparaginylalanythreonylleucylargin-":"ylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanylglutaminylcysteinylp-":"henylalanylglglutamylmethionylleucyalanylleucylisoleucylarginylglutaminyllysylhisti-":"dylprolyuthreonylisoleucylprolylisoleucylglycylleucylleucylmethionyltyrosylalanylas-":"baraginylleucylvalylphenylalanylsparaginyyllysylglycylisoleucylaspartylglutamylphen-":"ylalanylyltyrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylspartylseryl-":"valylleucylvallalanylaspartylvalylprolylvalvlglutaminylglutamylserylalanylprolylphe-":"nylalalrginylglutaminylalanylalanylleucylarginylhistidylasparaginylvalylalalprolyli-":"soleucylphenylalanylisoleucylcysteinylprolyprolylaspartylalanylaspartylaspartyspart-":"yleucylleucylarginylglutaminylisoleucylalanylseryltyroslglycylarginylglycyltyrosylt-":"hreonyltyrosylleucylleucylserylarginlalanylglycylvalylthreonylglycylalanylglutamyla-":"sparaginylarginylanylalanylleucylprolylleucylaspaaginylhistidylleucylvalylalanyllys-":"ylleucyllysylglutamyltyrosylasparagimylalanylalanyprolylprolylleucylglutaminylglycy-":"lphenlalanylglycylisoleyucylserylalanylprolylaspartylglutaminylvalyllysylalanylalan-":"ylisoleucylalspartylalanylglycylalanylalanylglycylalanylasoleucylserylglycylserylal-":"anylisoleucylbalyllysylisoleucylisoleucylglutamylglutaminylhistidylasparaginylisole-":"ucylglutamylpronylgluotamyllysylmethionylluecylalanylalanyoeucyllysylvalylphenylala-":"nylvalylglutamilylprolylmethionyllysylalanylalanylthreonylarginylserine"

ee also

*Longest word in English
*Acetylseryltyrosylseryliso...serine
*Methionylthreonylthreonyl...isoleucine ~ Titin
*Methionylalanylthreonyl...leucine ~ Enaptin
*Protein
*Amino acid