由26个英文字母不重复的组成的单词是哪一个？

由26个英文字母不重复的组成的单词是哪一个？

A a
B b
C c
D d
E e
F f
G g
H h
I i
J j
K k
L l
M m
N n
O o
P p
Q q
R r
S s
T t
U u
V v
W w
X x
Y y
Z z

补充： 1913个字母，“色氨酸合成酶a蛋白质”（一种含有267种氨基酸酶）的全称： methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalany lglutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenyla lanylvalylprolyphenylalanylvalythreonylleucylglycylaspartylprolylglyc ylisoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreony lleucylisoleucylglutamylalanylglycylalanylasparthlalanylleucylglutamy lleucylglycylisoleucylprolylphenylalanylserylaspartylprolylleucylalan ylaspartylglycylprolylthreonylisoleucylglutaminylaspfraginylalanylthr eonylleucylarfinylalanylphenylalanylalanylalanylglycylvalythreonylpro lylalanylglutaminylcysteinylphenylalanylglutamylmethionylleucylalanyl leuoylisoleucylarginylglutaminyllysyhistidylprolylthreonylisoleucylpr olylisoleucylglycylleucylmethionyltyrosylalanylasparaginylleucylvalyl phenylalanylasparaginyllysyglycylisoleucylaspartylglutamylphenylalany lthrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylasparty lserylvalylleucylvalylalnylaspartylvalylprolylvalylglutaminylglutamyl serylalanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginy lhistidylasparaginyvalylalanylprolylisoleucylprolylisoleucylphenylalan ylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylasp artylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryl tyrosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylargin ylalanylglycylvalylthreonylglycylalanylglutamylasparainylarginylalanyl alanylleucylprolylleucylasparaginylhistidylleucylvalylalanyllysylleucy llysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminy lglgycylphenylalanylglycylisoleucylserylalanylprolylaspartylglutaminylv alyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanylglycylala nylisoleucylserylglycylserylalanylisoleucylvalyllysylisoieucylisoleucyl glutamylglutaminylhistidylasparaginylisoleucylglutamylprolylglutamyllys ylmethionylleucylalanylalanylleucyllysylvalylphenylalanylcalylglutaminy lprolylmethionlysylalanylalanylthreonylarginylserine