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Recent activity of mouse metabolic phenotyping service at Korea Mouse Phenotyping Center (KMPC)
Hye Sun Go,Ji Min Choi,Seul Gi Yoon,Su In Jang,Soo Jin Son,Da In On,Hyun A Noh,Mi Young Kim,Il Yong Kim,Je Kyung Seong 한국실험동물학회 2021 한국실험동물학회 학술발표대회 논문집 Vol.2021 No.7
To understand the function of individual genes is also a key information in developing new treatment techniques. Even though a couple of genetically engineered mouse (GEM) models has been generated, still precising determination of mouse phenotype is not easy. Precising mouse phenotyping is one of the effective way leading to discovery gene function. International Mouse Phenotyping Consortium (IMPC) has established mega database of mouse phenotyping data from different institutes across the world based on generalized platform. However more precised mouse phenotyping is still needed. In order to meet the need for more detailed phenoyping in mouse, Korea Mouse Phenotyping Center (KMPC), nation-wide program for mouse production and phenotyping in Korea has been establishing several pipelines for disease-specific mouse phenotyping to support the mouse research. Here we introduce mouse metabolic and exercise phenotyping services, as well as the other services of mouse research such as providing genetically engineered mouse information, producing selling genetically engineered mice, and managing resource quality so that researchers can easily utilize the research infrastructure. Metabolic characterization in mouse is one of key factors for understanding the pathogenesis of obesity, type 2 diabetes and insulin resistance. KMPC has been providing mouse metabolic phenotyping including high fat diet, exercise and cold challenges. Multiple parameter including energy expenditure (EE), O2/CO2 consumption (RER), heat generation and activity has been provided with histology service and body composition. Also temperature can be measured during metabolic chamber with telemetric system. Here we summarized mouse metabolic phenotyping services at KMPC.
Synthesis and Biological Activities of Myomodulin E and its Analogs
Hye-Jin Go(고혜진),Jung-Kil Seo(서정길),Hae Jeom Seo(서혜점),Min Jeong Lee(이민정),Tae Hyun Park(박태현),Gun Do Kim(김군도),Nam Gyu Park(박남규) 한국생명과학회 2012 생명과학회지 Vol.22 No.4
군소인 Aplysia kurodai의 중추신경절로부터 발견된 myomodulin A (MMA, PMSMLRLamide)와 myomodulin E (MME, GLQMLRLamide)는 Mytilus edulis의 anterior byssus retractor muscle (ABRM)을 활성측정시스템으로 사용하여 정제되었다. . 정제된 MMA와 MME는 연체동물에서 발견된 myomodulin 계열의 펩타이드와 동일한 일차구조를 지닌다. MME의 구조와 활성간의 상관관계를 알아보기 위해서 MME, 유도체 및 다른 신경성 펩타이드들을 합성하였다. MME의 유도체인 Des[Gly¹]-MME, Des[Gly¹,Leu²]-MME 및 Des[Gly¹, Leu²,Gln³]-MME의 일차구조는 각각 LQMLRLamide, QMLRLamide 및 MLRLamide이다. 합성 물질들을 사용하여 ABRM에 대한 phasic -contraction을 측정하였다. MME는 1×10<SUP>-9</SUP> M 또는 더 높은 농도에서 ABRM의 phasic contraction을 저해하였다. 또한 MME는 1×10<SUP>-8</SUP> M에서 catch-tension에 대해 이완활성을 나타내었다. 합성 펩타이드들을 사용하여 Africa giant snail, Achatina fulica의 소낭과 penial retractor muscle에 대해서도 활성을 측정하였다. MME와 유도체들은 소낭에 대해서는 수축반응을 보였지만, penial retractor muscle에 대해서는 이완 활성을 나타내었다. 이러한 결과들은 MME와 그 유도체들은 연체동물의 다양한 조직에 대해 조절 효과를 가지고 있다는 것을 의미한다. 본 연구는 생체 내에서 발생하는 신경 및 circuit의 변화를 조절하는 작용 연구에 대한 기본적인 자료가 될 것이다. Previous work has characterized myomodulin A (MMA, PMSMLRLamide) and myomodulin E (MME, GLQMLRLamide) purified from the central nervous systems of the sea hare, Aplysia Kurodai, using the anterior byssus retractor muscle (ABRM) of the mussel, Mytilus edulis. The amino acid sequences of MMA and MME were the same as those of the myomodulin family peptide found in other mollusks. In this study, we synthesized MME, its derivatives, and other neuropeptides to investigate the relationship between the structure and biological activity of MME. The primary structures of MME’s derivatives, Des[Gly¹]-MME, Des[Gly¹,Leu²]-MME, and Des[Gly¹,Leu²,Gln³]-MME, were LQMLRLamide, QMLRLamide, and MLRLamide, respectively. MMA and synthetic peptides were tested on ABRM in M. edulis as well as muscle preparations in Achatina fulica. MME displayed an inhibitory effect on phasic contraction of the ABRM at 1×10<SUP>-9</SUP> M or higher. MME also had a relaxing effect on the catch-tension of AMRM at 1×10<SUP>-8</SUP> M. Both MMA and its analogs stimulated a contractile response on the crop and relaxed the catch-relaxing response on the penial retractor muscle of A. fulica. These results suggest that MME and its analogs have modulatory effects on various muscles of mollusks. This study has also laid the groundwork for future neural and circuit modulation studies during animal behavioral changes.
Aryl diester들에 존재하는 methoxycarbonylmethylester group의 상대적 반응성에 관한 연구
정혜진, 채수연, 표수진, 김다미,이유빈, 최의진, 김진주, 남궁성건 서울여자대학교 자연과학연구소 2016 자연과학연구논문집 Vol.28 No.-
The aryl diesters (1-3) and (8A) were prepared to investigate efficiency of methoxycarbonylmethyl (MCM) group as both protecting group specific for carboxylic acids and activating group for several functional group transformation reactions. MCM ester was very stable under strongly acidic condition and easily deprotected to its acid under mild basic condition. MCM ester of diclofenac (5B) proved to be one of activated esters through base-promoted cyclization reaction. MCM ester was also effective for transesterification reaction and reduction under the presented reaction conditions. Finally, MCM ester was not reactive to pri- and sec-aliphatic amines.