کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2008603 1066434 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ovarian jelly-peptides (OJPs), a new family of regulatory peptides identified in the cephalopod Sepia officinalis
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Ovarian jelly-peptides (OJPs), a new family of regulatory peptides identified in the cephalopod Sepia officinalis
چکیده انگلیسی

In marine invertebrates, numerous water-borne peptides involved in reproductive behavior have been characterized. In this study, we focused on three ovarian water-borne peptides, released by full-grown oocytes (FGO) in the genital coelom and in the lumen of the oviduct in the cuttlefish Sepia officinalis. The first one (DQVKIVL), was characterized by the monitoring of HPLC purified fraction using a myotropic bioassay. Subsequently, a peptidomic approach consisting of a mass spectrometry comparative screening performed between the peptide content of FGO with that of FGO-conditioned medium, led to the identification of two additional water-borne peptides. The second peptide identified (DEVKIVL) was characterized by MS/MS and the primary structure of the third one (DEVKIVLD) was elucidated by a combination of Edman degradation, acid hydrolysis and MS/MS analysis. Sequence homology, tissue mapping and bioactivity demonstrate that these peptides belong to the same family. DQVKIVL-related-peptides strictly localized in the female genital tract modulate the whole female genital tract and the main nidamental gland contractions. Furthermore, these peptides form a jelly, when resuspended in water. This particular property could play an important role in the kinetics of peptide diffusion in the external medium. Thus, these regulatory peptides were named ovarian jelly-peptides (OJPs).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Peptides - Volume 27, Issue 6, June 2006, Pages 1259–1268
نویسندگان
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