دورية أكاديمية

Pharmacological Characterization and Investigation of N-Terminal Loop Amino Acids of Adrenomedullin 2 That Are Important for Receptor Activation.

التفاصيل البيبلوغرافية
العنوان: Pharmacological Characterization and Investigation of N-Terminal Loop Amino Acids of Adrenomedullin 2 That Are Important for Receptor Activation.
المؤلفون: Musa H; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand., Hendrikse ER; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand., Brimble MA; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.; Maurice Wilkins Centre for Molecular Biodiscovery , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.; School of Chemical Sciences , The University of Auckland , 23 Symonds Street , Auckland 1010 , New Zealand., Garelja ML; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand., Watkins HA; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand., Harris PWR; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.; Maurice Wilkins Centre for Molecular Biodiscovery , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.; School of Chemical Sciences , The University of Auckland , 23 Symonds Street , Auckland 1010 , New Zealand., Hay DL; School of Biological Sciences , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.; Maurice Wilkins Centre for Molecular Biodiscovery , The University of Auckland , 3A Symonds Street , Auckland 1010 , New Zealand.
المصدر: Biochemistry [Biochemistry] 2019 Aug 13; Vol. 58 (32), pp. 3468-3474. Date of Electronic Publication: 2019 Jul 29.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 0370623 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-4995 (Electronic) Linking ISSN: 00062960 NLM ISO Abbreviation: Biochemistry Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Washington, American Chemical Society.
مواضيع طبية MeSH: Adrenomedullin/*chemistry , Adrenomedullin/*metabolism , Receptors, Cell Surface/*metabolism, Amino Acid Sequence ; Animals ; COS Cells ; Chlorocebus aethiops ; Cyclic AMP/biosynthesis ; Humans
مستخلص: Adrenomedullin 2 (AM2) is a peptide hormone with potent effects in the cardiovascular system. The N-terminal disulfide loop of AM2 is thought to be important for interacting with its receptors to initiate a signaling response. However, the relative contribution of each amino acid within this region is currently unknown. Thus, the region was investigated using an alanine scanning approach. Two AM2 peptides (AM2-47 and AM2-40) were directly compared at the CGRP, AM 1 , and AM 2 receptors in transfected Cos7 cells and found to have equivalent activity. Analogues of AM2-40 were then synthesized, substituting each individual amino acid within the disulfide loop with alanine. The ability of these analogues to stimulate a cAMP response was evaluated at the CGRP, AM 1 , and AM 2 receptors. AM2-40 L12A and T14A were less able to elicit cAMP responses through all tested receptors. In contrast, AM2-40 G13A was slightly more potent than the unmodified peptide at all tested receptors. Thus, it appears that residues within the disulfide loop region play differential roles in the ability of AM2 to stimulate cAMP production. The data provide the first structure-function investigation of AM2 agonism.
المشرفين على المادة: 0 (Receptors, Cell Surface)
148498-78-6 (Adrenomedullin)
E0399OZS9N (Cyclic AMP)
تواريخ الأحداث: Date Created: 20190723 Date Completed: 20200605 Latest Revision: 20200605
رمز التحديث: 20240829
DOI: 10.1021/acs.biochem.9b00571
PMID: 31328503
قاعدة البيانات: MEDLINE