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Methionylglutaminy...serine

Methionylglutaminy...serine is a scientific name for tryptophan synthetase, which is made up of 267 amino acids. It has appeared written down a number of times and has 1,909 letters.

According to the Guinness Book of World Records, 18th edition, it is the longest chemical word for C1289H2051N343O375S8.

The full name is:

methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanyl- glutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanyl- valylprolylphenylalanylvalylthreonylleucylglycylaspartylprolylglycyl- isoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucyl- isoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucyl- glycylisoleucylprolylphenylalanylserylaspartylprolylleucylalanylaspartyl- glycylprolylthreonylisoleucylglutaminylasparaginylalanylthreonylleucyl- arginylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanyl- glutaminylcysteinylphenylalanylglutamylmethionylleucylalanylleucyl- isoleucylarginylglutaminyllysylhistidylprolylthreonylisoleucylprolyl- isoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylvalyl- phenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyl- tyrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylseryl- valylleucylvalylalanylaspartylvalylprolylvalylglutaminylglutamylseryl- alanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginylhistidyl- asparaginylvalylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolyl- prolylaspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminyl- isoleucylalanylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucyl- leucylserylarginylalanylglycylvalylthreonylglycylalanylglutamylasparaginyl- arginylalanylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyl- lysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucyl- glutaminylglycylphenylalanylglycylisoleucylserylalanylprolylaspartyl- glutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanyl- glycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoleucyl- isoleucylglutamylglutaminylhistidylasparaginylisoleucylglutamylprolyl- glutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalanylvalyl- glutaminylprolylmethionyllysylalanylalanylthreonylarginylserine

Compare Longest word in the English language.