Related Experiment Video
Updated: Jul 14, 2026

In Situ Detection of Ribonucleoprotein Complex Assembly in the C. elegans Germline using Proximity Ligation Assay
Published on: May 5, 2020
A novel Aurelia aurita protein mesoglein contains DSL and ZP domains
I V Matveev1, T G Shaposhnikova, O I Podgornaya
1Institute of Cytology RAS, Tikhoretsky pr. 4, St-Petersburg 194064, Russia. ivm@ivm.stud.pu.ru
Abstract:
Body of the scyphoid jellyfish Aurelia aurita consists of 2 epithelia -- epidermis and gastroderm. The layers are separated by a thick layer of extracellular matrix -- mesoglea. A. aurita has a lot of cells in the mesoglea unlike many other Cnidarians. The major protein of the mesoglea with apparent molecular mass of 47 kDa was detected by SDS-PAGE. A partial mRNA of the protein 1421 bp long was cloned and sequenced. The search for homologous nucleotide and protein sequences shows that the mRNA sequence is novel. Deduced amino acid sequence of 416 aa contains zona pellucida (ZP) domain and Delta/Serrate/Lag-2 (DSL) domain. The protein was named mesoglein. According to reverse transcription PCR analysis it is expressed in the mature medusa exclusively in the mesogleal cells. Mesoglein belongs to the lowest phyla among ZP domain-containing proteins. The protein is supposed to be a structural element of the mesoglea extracellular matrix.
Related Concept Videos
Conservation of Protein Domains Over Different Proteins
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to form...
Cytoskeletal Linker Proteins - Plakins
Rab Proteins
Rab proteins switch between a cytosolic, GDP-bound inactive state and a membrane-anchored, GTP-bound active state. By themselves, Rabs show slow rates of GDP/GTP exchange and GTP hydrolysis. Thus, Rab proteins are considered...
Septins
Assembly of Signaling Complexes
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Role of Septins
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...

