Table 1

Structure of MCH analogs

Peptide	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
MCH^1-a	Asp	Phe	Asp	Met	Leu	Arg	Cys	Met	Leu	Gly	Arg	Val	Tyr	Arg	Pro	Cys	Trp	Gln	Val
Salmon MCH^1-a			Asp	Thr	Met	Arg	Cys	Met	Val	Gly	Arg	Val	Tyr	Arg	Pro	Cys	Trp	Glu	Val
[F¹³;Y¹⁹]-MCH^1-a	Asp	Phe	Asp	Met	Leu	Arg	Cys	Met	Leu	Gly	Arg	Val	Phe	Arg	Pro	Cys	Trp	Gln	Tyr
C1	Asp	Phe	Asp	Met	Leu	Arg	Ser	Met	Leu	Gly	Arg	Val	Tyr	Arg	Pro	Ser	Trp	Gln	Val
MCH_6–17						Arg	Cys	Met	Leu	Gly	Arg	Val	Tyr	Arg	Pro	Cys	Trp
S36077						Arg	Ser	Met	Leu	Gly	Arg	Val	Tyr	Arg	Pro	Ser	Trp
C2						Arg	Cys	Ala	Leu	Gly	Arg	Val	Tyr	Arg	Pro	Cys	Trp
C3						Arg	Cys	Met	Leu	Gly	Arg	Ala	Tyr	Arg	Pro	Cys	Trp
C4						Arg	Cys	Met	Leu	Gly	Arg	Val	Ala	Arg	Pro	Cys	Trp
C5						Arg	Cys	Met	Leu	Gly	Arg	Val	Tyr	Ala	Pro	Cys	Trp
C6						Arg	Cys	Met	Leu	Gly	His	Val	Tyr	Arg	Pro	Cys	Trp
C7						Arg	Cys				Arg	Val	Tyr	Arg	Pro	Cys	Trp
C8						Arg	Cys	Met	Leu		Arg	Val	Tyr	Arg	Pro	Cys	Trp
S36057				Tyr(I)	ADO	Arg	Cys	Met	Leu	Gly	Arg	Val	Phe	Arg	Pro	Cys	Trp

All compounds except C1 and S36077 are cyclic peptides between Cys⁷ and Cys¹⁶; substituted residues are in bold.