Korea Institute of Ocean Science & Technology

Samsung Electronics Co., Ltd.

Jun Hyuck Lee

Joung Han Yim

Se Jong Han

Il-Chan Kim

Ha Ju Park

Chul Soo Shin

Dockyu Kim

Bon-Hun Koo

Ji Woo Lee

Tai Kyoung Kim

Moon Hyuk Choi

Chul Hyung Yang

Hong Kum Lee

Ui Joung Youn

Kwon Joo Yeo

The present invention can synthesize lobaric acid and four analogues thereof, which are five phenolic lichen metabolites isolated from an extract of the Antarctic lichenand selectively inhibit PTP1B, by a simple, economic and efficient chemical synthesis method.

Method for synthesis of lobaric acid and analog thereof

An electronic device is provided. The electronic device includes an earphone interface including a plug housing into which an earphone plug is inserted comprising contact points that contact electrode terminals of the earphone plug and protrusions connected to the contact points, and a substrate having signal lines coupled to the protrusions arranged in the plug housing to transmit signals to the electrode terminals of the earphone plug or receive signals from a specific electrode terminal. The substrate includes a ground line connected to a ground terminal of the earphone plug and a coupler that couples a wireless signal that flows through the ground line.

Earphone interface and electronic device including the same

A cold-adapted protease derived fromPAMC 21717 or a recombinant cold-adapted protease obtained by expressing a gene encoding the cold-adapted protease inis described, and more particularly, a crystal of a protease exhibiting activity at low temperatures, a method for crystallizing the protease, a method for preparing the protease, a recombinant microorganism that expresses the protease, a method for preparing the recombinant microorganism, a method for preparing the recombinant protease and the use of the cold-adapted protease. The cold-adapted protease exhibits high activity at low temperatures, and securely maintains its enzymatic activity even in the presence of high pH, various metal ions and surfactants. Thus, it is useful in various industrial applications.

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Growing community of inventors

Incheon, South Korea

Jun Hyuck Lee