Water scorpions (Heteroptera, Nepidae) and giant water bugs (Heteroptera, Belostomatidae): Sources of new members of the adipokinetic hormone/red pigment-concentrating hormone family

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F07%3A00094808" target="_blank" >RIV/60077344:_____/07:00094808 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Water scorpions (Heteroptera, Nepidae) and giant water bugs (Heteroptera, Belostomatidae): Sources of new members of the adipokinetic hormone/red pigment-concentrating hormone family

Original language description

The giant water bug Lethocerus indicus (family: Belostomatidae) contains a peptide code-named Letin-AKH and the water scorpion Nepa cinerea (family: Nepidae) has the peptide code-named Nepci-AKH. Synthetic peptides were made and co-elution on RP-HPLC with the natural peptide from crude gland extract confirmed the accuracy of the deduced sequence for Letin-AKH and demonstrated that Nepci-AKH contains a Leu residue at position 2 and not an Ile residue. A previously characterized member of the AKH/RPCH family was identified in the stick water scorpion Ranatra linearis: Grybi-AKH has the same mass (919 Da) as Nepci-AKH and differs in two positions from Nepci-AKH (residues 2 and 6). The apparent function of the peptides is to achieve lipid mobilization in the species under investigation; indications for this came from conspecific bioassays using the appropriate synthetic peptides for injecting into the insects. This funct. is very likely linked to dispersal flight metabolism of water bugs.

Czech name

Vodní ploštice (Heteroptera, Nepidae) a (Heteroptera, Nepidae): Zdroje nových peptidů adipokinetického hormonu z AKH/RPCH skupiny

Czech description

Vodní ploštice Lethocerus indicus (Belostomatidae) obsahuje AKH peptidy kódované jako Letin-AKH, zatímco Nepa cinerea (family: Nepidae) peptid the peptide označený jako Nepci-AKH. Byly připraveny syntetické peptidy a jejich koeluce pomocí RP-HPLC potvrdila sekvenci Letin-AKH a ukázala, že Nepci-AKH obsahuje v poloze 2 Leu, a ne Ile. Již dříve charakterizovaný peptid AKH/RPCH skupiny byl identifikován u Ranatra linearis: Grybi-AKH má stejnou hmotnost (919 Da) jako Nepci-AKH and liší se ve dvou polohách od Nepci-AKH (residues 2 and 6). Zjevnou funkcí peptidů je mobilizovat lipidy, což prokázaly pokusy s dávkováním syntetických peptidů přímo do hmyzu. Tato funkce je velmi pravděpodobně spojena s metabolismes letu u vodních ploštic.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

ED - Physiology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Peptides

ISSN

0196-9781

e-ISSN

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Volume of the periodical

28

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

1359-1367

UT code for WoS article

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EID of the result in the Scopus database

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