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Isolation and identification of a pheromonotropic neuropeptide from the brain-suboesophageal ganglion complex of Lymantria dispar: a new member of the PBAN family.

Abstract：

:A pheromonotropic peptide was isolated from brain-suboesophageal ganglion complexes of the adult female gypsy moth, Lymantria dispar, using a 5-step HPLC purification protocol and an in vivo bioassay in Helicoverpa zea. The intact peptide was sequenced by automated Edman degradation. The L. dispar pheromone biosynthesis activating neuropeptide (Lyd-PBAN) is a C-terminally amidated 33-amino acid peptide with a molecular weight of 3881. The peptide was synthesized using Fmoc procedures. Lyd-PBAN has sequence homology with Hez-PBAN (81.8%) and Bom-PBAN-I (66.7%). All three PBANs share the C-terminal hexapeptide sequence, Tyr-Phe-Ser-Pro-Arg-Leu-NH2. In addition, the C-terminal pentapeptide sequences of Pseudaletia pheromonotropin (Pss-PT), Bombyx diapause hormone (Bom-DH), the locustamyotropins (Lom-MT) and leucopyrokinin (Lem-PK) are identical or have a high degree of homology to the C-terminus of PBANs.

journal_name

Insect Biochem Mol Biol

journal_title

Insect biochemistry and molecular biology

authors

Masler EP,Raina AK,Wagner RM,Kochansky JP

doi

10.1016/0965-1748(94)90111-2

subject

Has Abstract

pub_date

1994-09-01 00:00:00

pages

829-36

issue

8

eissn

0965-1748

issn

1879-0240

pii

0965-1748(94)90111-2

journal_volume

24

pub_type

杂志文章

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