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Full-Text Articles in Molecular Biology
Cloning And Expression Of Hydra Innexin 2, A Gap Junction Protein Required For Coordinated Contraction Of The Body Column, Ashley O'Brien
Cloning And Expression Of Hydra Innexin 2, A Gap Junction Protein Required For Coordinated Contraction Of The Body Column, Ashley O'Brien
Biology Theses
In invertebrates gap junctions are formed by the innexin family of proteins. Remarkably, the genome of Hydra magnipapillata contains 17 innexin genes. This study focused on Hydra innexin-2 (h-Inx2) which is expressed in nerve cells and plays a role in contraction of the body column. The gene sequence of H-Inx2 was obtained from the National Center for Biotechnology Information (NCBI), the gene was synthesized externally and transferred to a vector suitable for expression in Xenopus oocytes (pcDNA3.1 CT-GFP TOPO). The TOPO CT-GFP vector includes a priming site for RNA polymerase which allows in vitro preparation of RNA. Another advantage is …
Ph Sensitivity Of Connexin 50 Hemichannels: H95 And Beyond, Leah Volk
Ph Sensitivity Of Connexin 50 Hemichannels: H95 And Beyond, Leah Volk
Biology Theses
Gap junction channels formed by connexin proteins are critical for the health and function of the vertebrate lens. It is important to understand how these channels are affected by pH because a pH gradient exists in lens tissue. Intracellular pH (pHi) is a regulator of gap junction coupling, and different connexins show different sensitivities to pHi. A “Particle-Receptor” model for pH-dependent channel closure involves the intramolecular interaction between the cytoplasmic tail of the connexin and a region near the mouth of the channel dependent on a highly conserved histidine residue at position 95. While this model …