Title

Computational analysis and structure predictions of CHH-related peptides from Litopenaeus vannamei

Authors

Authors

G. P. C. Nagaraju; N. S. Kumari; G. L. V. Prasad; B. R. Naik;D. W. Borst

Comments

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Abbreviated Journal Title

Integr. Biol.

Keywords

CRUSTACEAN HYPERGLYCEMIC HORMONE; MOLT-INHIBITING HORMONE; AMINO-ACID-SEQUENCE; MOLECULAR CHARACTERIZATION; HOMARUS-AMERICANUS; CARCINUS-MAENAS; CDNA CLONING; PROTEIN; SHRIMP; EXPRESSION; Cell Biology

Abstract

The crustaceans produce several related peptides that belong to the crustacean hyperglycemic hormone (CHH) family. While these peptides have similar amino acid sequences, they have diverse biological functions that must arise, in part, from differences in the 3D shape of these peptides. However, it is generally accepted that peptides with a high degree of sequence similarity also have a similar 3-D structure. We used the solution structure of one peptide in the crustacean hyperglycemic hormone family, the molt-inhibiting hormone of the kuruma prawn (Marsupenaeus japonicus), to predict the shape of the five known peptides related to CHH in the Pacific white shrimp, Litopenaeus vannamei. The high similarity of the 3-D structures of these peptides suggests a common fold for the entire family. Nevertheless, minor differences in the shape of these peptides were observed, which may be the basis for their different biological properties.

Journal Title

Integrative Biology

Volume

3

Issue/Number

3

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

218

Last Page

224

WOS Identifier

WOS:000288126800007

ISSN

1757-9694

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