Se i . R e p . Kanazawa U n i v . Vo l . 2 8 N o . 2 p p . 59‑67 December 1 9 8 3
Beta‑alanine and Doparnine in the Reddish B r : own Scales of R α . p i 1 i o Butter ・ f H es
Yoshishige UMEBACHI and Yumi ISHIZAKI
Department 0 1 B i o l o g y , F . αcu
始。i f Kanazawa K .
仰a z
側0 , ( R e c e i v e d Octob
邑r3 0 , 1 9 8 3 )
A b s t r a c t ( 1 ) R e d d i s h brow
l1s c a l e s o f t h e a n a l
巴yes p o t i n t h e h i n d ‑ w i n g s o f P.
d e m o [ e u s and P . m a c h a o
目haveb e e n ex
呂min
巴df o r β ‑ a l a n i n e and dopamine
( 2 ) The s c a l e s were f r a c t i o n a t e d i n t o 70% e t h
呂n o l ‑ s o l u b !
巴f r a c t i o n , 4% HC1‑methanol
‑ s o l u b l e f r a c t i o n , and t h e r e s i d u a l s c a l e s , and t h e β ‑ a l a n i n ε c o n t e n t o f each f r a c t i o n was d e t e n n i n ε d . Most o f theβalanine p r e s e n t i n t h e s c a l e s h a s b e e n f o u n d i n t h e r e s i d
l1a l s c a l e s . On a c i d h y d r o l y s i s o f t h e r
巴日i d u a ls c a l e s , t h e β ‑ a l a n i n e h a s been r a t h e r r a p i d l y r e l e a s e d , and t h e h y c l r o l y s a t e h a s c o n t a i n
巴da l a r g e amount o f βalanine.
( 3 ) Th
巴p r o t e i n ‑ b o l l n dbrown p i g r n e n t ( I ‑ I C I ‑ p p t f r a c t i o n ) , which was e x t r
副二t
邑dw i t h J N NaOH a n c l p r
巴C!p i t
旦t
芭dby b e i n g a c i c l i f i
己dw i t h HC I . h a s c o n t a i n e d
呂l a r g eamount o f βalanine. 1 n most 0
1"a t l e a s t somεof thεβalanine , t h e N H
2‑ g r o u p h a s b e
巴np r o v e d t o be f r
日E
( 4 ) 1 4 C ‑ L a b e l l e d β ‑ a l a n i n
巴andl ' C ‑ d o p a m i n e , which w
臼ei n j e c t e d a t p r e p u p a l or p u p a l s t a g e
,have been i n c o r p o r a t e d i n t 1 1
巴h i g h e s td e g r
日ei n t o t h
巴r e s i d u a l s c a l e s . And t h e
14
C ha
日b ε
白nc o n f i r m e d t o be p r e s e n t i n t h e HCI'ppt 占 I f a c t i o n
( 5 ) A I l t h e s
巴r e s u l t s i n d i c a t ε t h a t t h
吃plgm
記n to f t h e r e d d i s h brown s c a l e s c o n t a i n s β ‑ a i a n i n e and d o p a m i n ι
l i n t J C o d u c t . i on
but
nor ommochl ・ omes Papiliochromes
,1
¥ 1
1and Chernical
and the main paie
have also been studied to some exten : I and name c ] 1 9 7 9 ) .
。
ft 1 1 e reddish brown i n th
色‑ 59‑
papers
6 0 Y. UMEBACHI and Y . I S H I Z A K I
(Umebachi
,1 9 7 8
,1 9 7 9
,1 9 8 3 ) are as follows : ( 1 ) The pigment contains kynurenine and βalanine.
(2)The pigment i s extractedas a protein‑bound form with
1N NaOH from the reddish brown s c a l e s and p r e c i p i t a t e d by H C l . But
,during t h i s procedure
,most of the kynurenine i s l o s t . ( 3 ) The s o l u b i l i t y of the pigment i s similar to that of melanin but the pigment i s not melanin.
(4)The protein‑bound pigment does not contain copper. And
(5)the absorption spectrum of the protein‑bound pigment does not have any peak and the absorbance progressively increases from 8 0 0 to 2 3 0 n m .
The present paper deals with more d e t a i l e d i n v e s t i g a t i o n s of β‑alanine i n the reddish brown s c a l e s and moreover shows that the pigment contains a l s o dopamine.
Materials and Methods
M a t e r i a l s
R e d d i s h brown s c a l e s o f t h e a n a l e y e s p o t i n t h e h i n d ‑ w i n g s o f Pa 〆 , l i od e m o l e u s and P a t i l i ・ o machaon were u s e d .
For t h e i n c o r p o r a t i o n ‑ e x p e r i m e n t s o f 1 . C ‑ l a b e l l e d compounds , young l a r v a e o f P. machaon were c o l l e c t e d i n t h e f i e l d and r a i s e d i n t h e l a b o r a t o r y . P u p a l s t a g e was 1 0 t o 1 3 d a y s
Ex
t r a c t i o n and j ト
‑ac t i o n a t i o
目S c a l e s were f i r s t e x t r a c t e d w i t h 70% e t h a n o l a t room t e m p e r a t u r e and 4 0 ・ Cs e v e r a l t i m e s , and t h e combined e x t r a c t i s c a l l
巴d70% EtOH f r a c t i o n . The r e s i d u e was t h e n e x t r a c t e d w i t h 4% HCl‑methanol a t room t e m p e r a t u r e f i v e t i m e s . The combined e x t r a c t i s named 4% HCI‑MeOH f r a c t i o n , and t h e r e s i d u e i s c a l l e d r e s i d u a l s c a l e s , which were s t i l l d a r k b r o w n .
The r e s i d u a l s c a l e s were f u r t h
巴rt r e a t e d w i t h 1 N NaOH a t room t e m p e r a t u r e e i g h t t i m e s . Most o f t h e d a r k brown p i g m e n t was
巴x t r a c t e dby t h i s e x t r a c t i o n . The combined e x t r a c t i s r e f e r r e d t o below a s 1 N NaOH‑soluble f r a c t i o n . The f i n a l r e s i d u e was b r o w n i s h y e l l o w
When t h e 1 N NaOH‑soluble f r a c t i o n was a c i d i f i e d w i t h c o n c . HCl and k e p t i n t h e c o l d , t h e d a r k brown p i g m e n t p r e c i p i t a t e d . A f t e r c e n t r i f u g a t i o n , t h e s u p e r n a t a n t was a l m o s t c o l o r l e s s . The p r e c i p i t a t e i s c a l l e d HCl‑ppt f r a c t i o n .
め
d r o l y s ι s
The a b o v e ‑ m e n t i o n e d f r a c t i o n s ( 7 0 % E t O H ‑ s o l u b l e
,4% HCI‑MeOH‑soluble
,r e s i d u a l s c a l e s
,and HCl p p t ) a s w
巴1 1a s t h e o r i g i n a l s c a l e s b e f o r e f r a c t i o n a t i o n were h y d r o l y z e d i n 6 N HCl a t 1 0 0
0C f o r 2 4 h r . I n some c a s e s , t h e h y d r o l y s a t e was d i l u t e d t o 1 N HCl w i t h w a t e r and a p p l i e d t o t h e Dowex 50W x 4 column ( 1 x 1 3 c m ) . A f t e r b e i n g washed w i t h w a t e r , amino a c i d s were e l u t e d w i t h 2 N ammonia w a t e r and l y o p h i l y z e d . I n some o t h e r c a s e s , t h e h y d r o l y s a t e was e v a p o r a t e d t o d r y n e s s i n a r o t a r y e v a p o r a t o r a t 6 0 。
C , and t h e r e s i d u e was k e p t o v e r NaOH i n a vacuum d e s I C c a t o r . The β ‑ a l a n i n e c o n t e n t o f t h e r e s i d u e t h u s o b t a i n e d was d e t e r r n i n e d .
I n some c a s e s , t h e t i m e o f h y d r o l y s i s and t h e c o n c e n t r a t i o n o f HCl were c h a n g e d .
D e t e
門n i n a t i o n0 1 β ‑ a l a n i n e
T h i s was p e r f o r m e d by t h e DNP‑method ( S a n g e r and Thompson , 1 9 5 3 ) . The sample ( t h e a b o v e
‑ m e n t i o n e d h y d r o l y s a t e ) was d i s s o l v e d i n O . l m l o f 1% t r i m e t h y l a m i n e , and 0 . 2 m l o f 5% FDNB ( l ‑ f l u o r o
2 , 4 ‑ d i n i t r o b e n z e n e ) i n e t h a n o l was a d d e d . A f t e r s t a n d i n g f o r 2 h r i n t h e d a r k , t h e s o l u t i o n was s u b m i t t e d
B e t a ‑ a l a n i n e and Dopamine i n t h e R e d d i s h Br
側 ηS c a l e s 0 / んがJ め B u t t e J
プl i e s 6 1
t o two‑dimensional t h i n ‑ l a y e r chromatography w i t h s i l i c a g e l s h e ε t (M
日r c k , N 0
,5 5 5 3 ) . The s o l v
巴n tf o r t h
巴f i r s t d i r e c t i o n was t h e o r g a n i c l a y e r o f t o l u
巴n e , c h l o r o e t h a n o l , p y r i d i n ε , and 0 . 8 N ammonia water mixture ( 5 : 3 ・ 1 . 5: 3 ) and I o r t h e second d i r
邑c t i o n , a mixture o f chroloIorm , b e n z y l a l c o h o l , and a c e t i c a c i d ( 7 0 : 3 0 : 3 ) . A f t e r development , a b s o r b a n c e o f t h e y e l l o w s p o t o f DNPβalanine on t h e chromatogram was measured w i t h a Shimazu 9 2 0 TLC s c a n n e r , which c o u l d p
日rfonna z i g ‑ z a g s c a n o v ε r a s p o t and i n t e g r a t e t h e v a l u e s o f a b s o r b a n c e .
Amino a c i d a
河a l y s e s
The r ε s i c 1 u a l s c a l e s and HC!‑ppt f r a c t i o n from P . d e m o l e u s were hydrolyzed a s m e n t i o n e c l above , and amino a c i c 1 s o f t h e h y d r o l y s a t e s were a n a l y z e c 1 w i t h a Nihon‑D
巴n s h i200A amino a c i d a n a l y z e r .
D i n i t r o 戸 h e n y l a t i o n 0 / t h e HC1‑ptt メ l
'Clc u o n
Th 日目 C I ‑ p p tf r a c t i o n from P . d e m o l e u s was d i s s o l v e c l i n 1 N NaOH a n c l a p p l i e c l t o t h
巴Dow
告x50Wx 4 column ( 1 x 1 3 c m ) . The column w
乱sw
旦s h e dw i t h watεr , a n c l t h e n t h e brown pigment was e l u t e d w i t h 2 N ammonia wat
芭r(Umebachi , 1 9 7 8 , 1 9 7 9 ) . The pigment was e l
抗 日d
日hεado f
在minoa c i c l f r a c t i o n . The c l a r k brown e f f l u e n t was c o l l e c t e d and I y o p h i l y z e d . The r e s i d u e , which was t h e p r o t e i n ‑ b o u n d dark brown pigment , was washe c 1 w i t h wat
巴r , d i s s o l v e c l i n 1 N N aOH , and p r e c i p i t a t e d w i t h c o n c . HC . I The d
乱r k brown p r e c i p i t a t e was i u r t h e r washed w i t h water and d i s s o l v e d i n 1ml o f 5% 1 ' 1 aHC0
3, a n c l 2ml o f 5%
FDNB i n e t h a n o l w
乱sa d d e d . A f t e r s t a n d i n g f o r 3 h r i n t h e dark , t h e solutionwas a c i d i f i e c 1 w i t h t h r
在日d r o p s o f c o n c . HCl ョ n c lwashed w i t h e t h y l e t h e r . A f t e r b e i n g f u r t h
日rw a s h e c l w i t h w
乳t e r 、 a c e t o n e , and e t h y l e t h e r , t h e p r
巴c i p i t a t ewas hy c 1 r o ! y z e d i n 6 N HCl a t 1 0 5 > ( f o r 1 5 h r i n
品s e a l ε dt u b e . Th
巴h y d r o l y s a t ewas d i l u t e d t o 1 N HCl with w
呂t e rand e x t r
丘c t
己dw i t h e t h y l e t h e r t h r e e t i m e s . The c o m b i n e c l e t h
巴rl a y e r was evaporated t o c l r y n e s s
,d i s s o l v e c l i n a c e t o n e
,昌nds u b m i t t e d t o t w o ‑ d i m e n s i o n a l t h i n ‑ l a y e r chromatography i n t h e sam
巴v v a ya s u s
日c lI n t h e d
日t e r m i n a t i o no f s‑alanin
色I n c 0 1 p o r a t i ω
1o f
j.jC ‑ l a b e t ! e d β a l a n i
刀eand d o 戸 amzne
Th
日l a b e l l e d compounds u s e d w
巴reβ‑alanin
巴[ 1 ‑1 4 C ] (Nεw England N u c l ε a r ; s p e c i f i c a c t i v i t y , 5 4 . 7μCi p e r 1 1 1 mo l )
乳n c 1dopami
日記[ s i d ec h a i n ‑ l ‑ " C] (Amer
ちham; s p e c i f i c a c t i v i t y , 56μCi p e r m m o l ) . Exp
巴r i m e n t
日werea l l p
日r f o r m E
、dw i t h P
.1na c h a o n . The l a b e l l ε d compounds were u s e d a s a wat
巴rs o l
l1t i
仁川1 , r e s p e c t i v
白l y , and 0 . 0 2 t o 0 . 0 6 r
は1 ( ( J . 6 t o 2 μ Ci)ぱ i t was i n j e c t e d a t t h
日) ) r
でp u p a ls t a g e 0
1'5‑7days a f t ε r p u p a t i o n
A f t e r emergence o f b u t t
己r f l y , a u t o r a c l i o g r a p h o f t h
巴wingswas t a k
己l い ' N i t ha Sakura Medical X ‑ray f i l m
ヲt o ' p eA . ' 1 ' 1 1
日t i m e0 1 exposur
巴was1 4 t o 2 1 d a y s . 1 、 hen , t h e r e c l d i s h b γ 。 l I / ns c a l
巴s" V
巴r es c r a p ε d and
t r
芭a t e dw i ! h 7 0 ; : o
付: h a n o la n c l
,1 ; ¥ ; HCl‑methanol s u c c e s s i v e l y
乱smentioned a b o v e . The 7 0 ' J " ; 1 よ tOHf r a c t i o n and , 1% HCI‑MeOH f r a c t i o n w
巴r ee v a p o r a t e d t o d r y n e s ョ i nc o u n t i n g v i a l s , r
巴s p
巴c t i v e l y . Th
巴r e s i d u a l s c a l e s were a l s o t r a n s f c
lTeclωa c o u n t i n g v i a l . To t h e d r y sample i n t h e c o u n t i n g v i a l t h u s o b t a i n e d , O
白5mlo f wat
灯 江 口dlml o f t h e s o l u b i l i z e r ' ‑ 、 , ( 1 TCSo I A l n e r s h a l Y U ¥ V ε r e a c l d e c l . A f t e r t h e sample was warmed a t 50T f o r ' o
巴v e r a lhO
l1r s . 0 . 0 3 m ] o f g l
乱c i a l a c
ぞt i c a c i c 1 and 8m1 o f s c i n t i l l a t i o n c o c l : t a i l (ACS I I o I A m
巴r d l a l η i
¥¥'eτεadd
日d . A f t e r t h
白C
凸u n t i n gv i a l
c.o n t a i n i n g l h e
E:::,a r n p ] c ¥ v a s 1 ; ; : ε p t i n t l J ε r ε f r i g e r a t o r f o r 2 t o 6days
町dp
日1
(¥1" 1/,仁、
N a日mcasuredw i t h a Beckman . L S‑900 り l i q u i d
~,ci口Li llationc o u n t e r
1 n som
巴c a s e s t h er a d i o a c t i v e r e d d i s h b r : ywn s c a l ε S " ¥ V e r
日washedw i t h 7 0 : : 6
日t h a n o l1
日p e a t
己dlyand t h e n ¥ v e r
日h y d r o l y z ε di n 6 N HCl a t l O O o C f o r 2 4 h r . The h y d r o l y s a t e was f i l t e r e d t h r o u g h C e n t r i f l o w CF
‑25 { / ¥ n u c o n J , and t h e f i 1 t r
日l : e¥ v a s e v a p o r a t e d t o dryn
合 間i na r o t a r y e v a p o r a t o
l'a t 6 0 " c ' A f t
日rb e i n g k e p t 0
¥7ε r 、 J a O I ‑ I i n a VaC
t1l1 1
l1c l e s i c c a t o r . t h e r e s i d u
日 明T礼s
dis~3()lvedi n
lO~~6 εthanol eJnd s u b m i t t e d : 1 0 o n c
‑ d i r n e n s i o n a l t h i n ‑ l a } .
日rc h r o r n a t o g l
司phy0 1 1 a c e l l u l m
きそうs h e e t
(lVlèrcl~しN o . 5 5 5 2 ) '
!vi t h a mixt
lJr e o f
河6 2
Y.U M E B A C H I a n d Y . I S H I Z A K I
‑ b u t a n o l ‑ a c e t i c a c i d ‑ w a t e r ( 1 2 : 3 : 5 ) . R a d i o a c t i v i t y o f t h e c h r o m a t o g r a m was m e a s u r e d w i t h a B e r t h o l d r a d i o a c t i v e c h r o m a t o g r a m s c a n n e r . The n i n h y d r i n r e a c t i o n was a l s o c a r r i e d o u t .
I n s o m e o t h e r c a s e s , t h e r a d i o a c t i v e r e d d i s h b r o w n s c a l e s w e r e t r e a t e d w i t h 70% e t h a n o l , 4% H C l m e t h a n o l , a n d 1 N NaOH s u c c e s s i v e l y a s m e n t i o n e d a b o v e . The H C l ‑ p p t f r a c t i o n was p r e p a r e d f r o m t h e 1 N N a O H ‑ s o l u b l e f r a c t i o n , a n d i t s r a d i o a c t i v i t y was m e a s u r e d w i t h t h e a b o v e ‑ m e n t i o n e d l i q u i d
s c i n t i l l a t i o n c o u n t e r .
R e s u l t s l n c o r p o r a t i o n 0 1 1 4 C ̲ β ‑ a l a n i n e
An a u t o r a d i o g r a p h o f t h e wings from t h e b u t t e r f l y ( P . m a c h a o n ) which was i n j e c t e d with 14C‑β‑a l a n i n e a t t h e p u p a l s t a g e i s g i v e n i n F i g . l a
,which shows t h a t t h e 1 4 C was i n c o r p o r a t e d i n t o n o t o n l y t h e deep y e l l o w s c a l e s b u t a l s o t h e r e d d i s h brown s c a l e s o f t h e a n a l e y e s p o t . The b u t t e r f l y which was i n j e c t e d a t t h e p r e p u p a l s t a g e gave a l s o s u b s t a n t i a l l y t h e same a u t o r a d i o g r a p h .
The r a d i o a c t i v e r e d d i s h brown s c a l e s were s c r a p e d and h y d r o l y z e d i n 6 N HCl
,and t h e h y d r o l y s a t e was s u b m i t t e d t o o n e ‑ d i m e n s i o n a l t h i n ‑ l a y e r chromatography. The r e s u l t o f r a d i o a c t i v i t y s c a n n i n g on t h e chromatogram i s g i v e n i n F i g . 2 , which shows t h a t t h e s c a l e s i n c o r p o r a t e d 14Cβ‑alanine and t h a t r a d i o a c t i v e s u b s t a n c e o t h e r than 1 4 C ̲ β ‑ a l a n i n e i s a b s e n t o r , i f any p r e s e n t , i t i s o n l y a l i t t l e . Of c o u r s e , many n i n h y d r i n ‑ p o s i t i v e c o l d
F i g . 1 . A u t o r a d i o g r a p h s o f t h e w i n g s o f P . machaon w h i c h was i n j e c t e d w i t h ( a ) 1 4 C ‑
β a l a n i n e o r ( b ) 1 4 C ‑ d o p a m i n e a t t h e p u p a l s t a g e . R , r e d d i s h b r o w n p a r t .
Beta~ala目t刀e
andDopami
刀ei n t h e R e d d i s h Brow
日S c a l e s 0 1 P a P i l i o B u t t e 1 ブ ' Z i e s 6 3
い 品 川 山 川 内 向 山 A h M
叫 ん巳
;JEl
F i g . 2
,R a d i o a c t i v i t y s c a n n i n g o f
th巴 thin~layerchromatogram o b t a i n ε d w i t h t h
色h y d r o J y s a t
巴o f 1 4 ( 二 一 β
且lanine~incorporatedr
巳d d i s h brown s c a l e s ( P . machaon)
,The chromatogram shows
njnhydrin~positiv巴 substances5 , s t a r t i n g l i n e ; F , t h e f r o n t o r s o l v
巴n t
T a b l
巴L D i s t r i b u t i o n o f r a d i o a c t i v i t y i n t h e
l1 C~ß~alanin巴 ìl1corporat巳dr e d d i s h brown s c a l e : o (p
,m . a c h a o n ) ( 1 "
巴r c e n t a g eo f t h e t o t a l r a d i o a c t i v i t y )
一
SUDsrancρs
首F r a c t i o n R a c i i o a c t i v i t ! d u P l n l 1
i1;, (X~/ 0
7 0 ' l
,o EtOH 4%
HC!~lvleOH32 1 4 . 5 8 2 . 3
amino a c i . ds ¥ N e r . e
F ' r o r n
仁heradioac : t i v e rεddish brown HCI‑MeCiH and r e s i d u a l s c a l e s were prepared
,and o f
ョach f r a c t i o n was measured. The r e s u l t s are i n Table 1 , ' N h i c h shows t h a t most o f t h e 1 4 C i s preSe i 1 t i n t h 日 : : ' e
引duals c a l e s
Moreovεr , the radioactive r e s i d u a l s c a l e s w
訂eextracted w ' I t h 1 N and t h e
!lCJ‑pp : l γ e H : t i o n from
:Ihe . 1 N ' N aOH ‑ , o o l u b l e f r a c t i o n was con l I nned t o be
1' a仁~1()a(', C1V色。
' T . " J
,b J e B e t a ‑ a l
日U 1 l r J ec o n t e n t s i o t h e r ε c l d i
命1:11'0 γ ¥ 1 ns c a l e s o f 二 } T a t i ! i o( u g p
陀J.'r n g d r y ' v v e i g h t 0 1
己c a l e s )
.
s p e c i e s d e
汁w た US
β/uani
口e
定
N l e a n 士 S . E o
1 " : ' " 1 ' 1 1
日n U l n l
コ巴1"u f d e t e n 1 1 ] n a b o
口i s shown i n
[)3.J
勾日n t h
巴巴B e t a ‑ t t l a η i
予l e con l e f 1 . t s s
ピぴ[C?C,
t
}lu c h
.i初 日6 1 . 9 ( 1 )
fh
ピ reddish
bro 明治 scale~古 of p,d e ‑ n l o u : ; u s and j J . F n a c l u l
円J
'l¥ ^ l εre a t 1 0 0 ' (
、f o r24br
1a n ( l r h e
Table which
show~~t h a ( tbe
1'eddish brown s c a l e s contain about 6 0
i n 6 ' r , T HCl
m
Y . U M E B A C H I a n d Y . I S H I Z A K I 6 4
mg d r y w e i g h t o f s c a l e s .
D i s t r i b u t i o n 0 1 β ‑ a l a n i n e i n t h e s c a l e s
The 70% EtOH f r a c t i o n , 4% HCl‑MeOH f r a c t i o n , and r e s i d u a l s c a l e s from t h e r e d d i s h brown s c a l e s were h y d r o l y z e d i n 6 N HCl
,and t h e i r β ‑ a l a n i n e c o n t e n t s were
D i s t r i b u t i o n ofβalanine i n t h e r e d d i s h b r o w n s c a l e s ( P e r c e n t a g e o f t h e t o t a l β ‑ a l a n i n e )
T a b l e 3 .
m a c h a o n
一
O弓4ヴ41 ・
︽d 1 i p b
d e m o l e u s
/ 0 9 q u
o ‑ ‑ Q
山
F r a c t i o n 7 0 % EtOH 4% HCI‑MeOH R e s i d u a l
s c a l e s S p e c i e s
9 2 . 5
d e t e r m i n e d . The r e s u 1 t s a r e g i v e n i n Table 3
,i n which t h e q u a n t i t y ofβalanine i n e a c h f r a c t i o n i s g i v e n a s p e r c e n t a g e o f t h e t o t a l β ‑ a l a n i n e c o n t e n t . The t a b l e shows t h a t a b o u t 9 0 p e r c e n t o f t h e t o t a l βalanine i s i n s o l u b l e i n 70% e t h a n o l and 4% HCl‑methanol and r e m a i n s i n t h e r e s i d u a l s c a l e s .
8 6 . 2
R e l e a s e 0 1 β a l a n i n e b y a c i d h y d r o l y s i s
The r e s i d u a l s c a l e s o f P. demoleuswere h y d r o l y z e d i n 6 N HCl a t 1 0 0
0C f o r 2 . 5
,5 . 5
,1 1 . 5
,and 2 4 h r , and β ‑ a l a n i n e o f t h e h y d r o l y s a t e was d e t e r m i n e d . As s e e n i n F i g . 3 , β ‑ a l a n i n e i s r a t h e r r a p i d l y r e l e a s e d on a c i d h y d r o l y s i s
,t h o u g h i t t a k e s 2 4 h r t o r e l e a s e t h e t o t a l β
a l a n i n e .
O
0‑
100
( ポ )
ω Z
E D
‑ ︽ ち Ehx
ω ω ロ ω
一ω
﹄16 24
( h r )
8
Time
R e l e a s e o f β a l a n i n e f r o m t h e r e s i d u a l s c a l e s o f P . d e m o l e u s b y a c i d h y d r o l y s i s ( 6 N H C l , 1 0 0 ' C ) .
F i g . 3 .
B e t a ‑ a l a n i n e a
托dDopamine i n t h e R e d d i s h Brown S c a l e s 0 / P a p i l i o B u t t e r f l i e s 6 5 T a b l e 4 . M o l a r r a t i o s o f a m i n o a c i d s i n t h
色h y d r o l y s a t e so f t h e r e s i d u a l
s c a l e s a n c l H C l ‑ p p t f r a c t i o n f r o m P . d e m o l e u s
Amino
呂c i d
Asp Thr S e l G l u Pro G l y A l a Val I l e L e u Tyr Phe βAla Ky
孔L y s H i s Arg
R e s i d u a l * s c a l
己S
3 . 3
i3 1 . 8 1 6 . 4 3 1 . 5 5 7 . 6 5 7 . 1 1 0 0 . 0 1 0 2 . 1 5 8 . 7 3 3 . 1 4 7 . 0 3 2 . 0 8 . 9 2 8 5 . 0 4 . 9 1 3 . 0 2 3 . 9
E x p e r i m e n t a l N 0 2 R e s i d u a l * *
s c a l
吉日3 . 7 4 0 . 7 2 6 . 2 4 1 . 9 4 2 . 8 5 5 . 1 1 0 0 . 0 9 4 . 7 1 1 1 . 0 3 2 . 4 4 6 . 3 4 1 . 0
9 . 5 1 9 7 . 8 1 2 . 3 1 5 . 5 2 7 . 5 2 1 . 7
3 日 C l ‑ p p t
ホキf r a c t i o n 2 7 . 6 3 6 . 6 2 3 . 0 3 1 . 1 8 8 . 0 4 4 . 4 1 0 0 . 0 7 2 . 0 8 4 . 4 3 7 . 7 5 3 . 0 2 3 . 0 1 9 . 5 4 9 8 . 1 T r a c ε
2 0 . 2 6 4 . 6
本
Theh y d r o l y s a t e was d
芭s a l t e dt h r o u g h t l 1 巴 Dowex5 0 ' 0 1 c o l u m n T
I1巴h y d r o l y s a t e
¥iv a s e v a p o r a t e d t o d r y n e s s i n a r o t a r y
巴v a p o r a t o r . T 乱 1 0 1 a r
I乱t l O S
丘r
匂g I V
E.:l1証st h e v a l u
記f o r1 0 0 o f g l y c i n e
i . t T h i s i n c 1 u d e s 1 1 1
日t h i o n i n
日a n dm e t h i o n i n ε s u l f o x i d e .
J ‑ l r n i n o aad t h e r e s i d u a l s c a l e s ω l d HC1‑ T μ
The r c s i d u a l s c a l e s o f P . d e r n o l e u s were i n 6 N HCl a t 1 0 0 ' ( f o r 24hr
,and was d e t e r r n i n e d with t h e amino ; : I c i d 1 、 her e s u l t s a r e g i v e n i n N o s . 1 and 2 o f Table 4
,i n which t h e molarγatios o f amino a c i d s a r e given a s thεva!ues f o r 1 0 0 o f g l y c i n e . The Expermεntal N o s
,1 and 2 show t h a t t h e r e s i c 1 1 . l a l s c a i ε s contain much more than o t h e r a
.mi n o a c i d s .
Moreuver
,t h e HCI‑ppt f r a c t i o n ・ I f om1
ヲdemol
正1βV
花} s h y d r o l y z e c l i
日t h esame
五vay a s i n th
日r e s i d u a l an c 1 t h e aminu a c i d conwosition
'vvas d e t e r m i n e d . The r e s u l t i s glven 1 1 1
a l s o a g r e a t
ト J . 0
,3 o f Table 4
,which s I 1 0ws t h a t t h e HCI‑p p t f r a c t i o n c o n t a i n s o f
t h e HCI 一片i
The H 仁 1 ‑p p t f r a c t i o n f r o 1 1 1 P . demoleuS¥NaS
and submitted t o t h i n ‑ l a y e r a s d e s c i r i b e d i n t h e s e c t i o n o f methods. Th
巴chromatogramc l e a r l y showed t h e
pre~:enceo f D N P β t h e s p o t o f w ア I 1 i c hwas c 1 i s t i n c t and p 1
ーとdominant. Although DNP‑a‑alanlne a 口 d
も
verea 1 s o t l l e l r spotswere
6 6 Y U ! v ! EBACHI a n d Y o I S Hl Z A K l
0/14C‑do 仰
,mzne
An a u t o r a d i o g r a p h o f t h e wings from t h e b u t t e r f 1 y which was i n j e c t e d w i t h 1 4 C ‑ d o p a m i n e a t t h e p u p a l s t a g e
,i s g i v e n i n F i g o I b
,which shows t h a t t h e 1 4 C was i n c o r p o r a t e d i n t o n o t o n l y t h e
a n a l e y e s p o t .
s c a l e s b u t a l s o t h e r e d d i s h brown s c a l e s o f t h e
T a b l e 5 0 D i s t r i b u t i o n o f r a d i o a c t i v i t y i n t h e 1 4 C ‑ d o p a m i n e ‑ i n c o r p o r a t
巴d r e d d i s h b r o w n s c a l
日s (P machaon) ( P e r c e n t a g e o f t h e t o t a l r a d i o a c t i v i t y ) F r a c t i o n
R a d i o a c t i v i t y dpm , %
M
記an+S .K
70% EtOH 7 0 6 十1. 0 *
( 3 )
ホ*4% HC1‑MeOH 1 1 . 3 寸 1 . 2
( 3 )
付
Th
日 立u m b e ro f d e t e r m i n a t i o n i s s h o w n i n p a r e n t h e s i s o
8 0 . 1 : t 1 . 5 ( 3 )
From t h e r a d i o a c t i v e r e d d i s h brown t h e EtOH
日CI‑MeOH and r e s i d u a i s c a l e s were p r e p a r ε d
,and t h e o f each f r a c t i o n was m e a s u r e c L The r e s u l t s a r e g i v e n i n Table 5
,which s h o ¥ ) ¥ l S t h a t most o f t h e 1 4 C i s p r e s e n t i n t h e r e s i d u a l s c a l e s o
The r a d i o a c t i v e r e s i d u a l s c a l e s were e x t r a c t e d w i t h 1 N and t h e HCl‑ppt f r a c t i o n from t h e
1N N aOB ‑ s o l u b l e f r a c t i o n was c o n f i r m e d t o be r a d i o a c t i v e .
D i s C l 1 S
SI l
OI 1 l
From t h e r e s u l t s o f t h e p a p e r s 1 9 8 3 ) and t I 1 e p a p e r , t h e r e i s no d o u b t t h a t t h e r e d d i s h brown o f p ゆがめ , i sn o t ommochrome b u t t h e v l h i c h i s r e l a t e d t o k y n u r e n i n e
,and For t h i s r e a S O
,1lt h e h a s been named R , Ford b ) h a s d i v i d e d r e d o f t h e P a p i l i o n i d a e i n t o two t y p e s A and R The o f typεA i s d i s t r i b u t e d i n
司