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ER-associated CTRP1 regulates mitochondrial fission via interaction with DRP1
Sonn Seong Keun,Seo Seungwoon,Yang Jaemoon,오기숙,Chen Hsiuchen,Chan David C.,이건수,Lee Kyung S.,양영,Oh Goo Taeg 생화학분자생물학회 2021 Experimental and molecular medicine Vol.53 No.-
C1q/TNF-related protein 1 (CTRP1) is a CTRP family member that has collagenous and globular C1q-like domains. The secreted form of CTRP1 is known to be associated with cardiovascular and metabolic diseases, but its cellular roles have not yet been elucidated. Here, we showed that cytosolic CTRP1 localizes to the endoplasmic reticulum (ER) membrane and that knockout or depletion of CTRP1 leads to mitochondrial fission defects, as demonstrated by mitochondrial elongation. Mitochondrial fission events are known to occur through an interaction between mitochondria and the ER, but we do not know whether the ER and/or its associated proteins participate directly in the entire mitochondrial fission event. Interestingly, we herein showed that ablation of CTRP1 suppresses the recruitment of DRP1 to mitochondria and provided evidence suggesting that the ER–mitochondrion interaction is required for the proper regulation of mitochondrial morphology. We further report that CTRP1 inactivation-induced mitochondrial fission defects induce apoptotic resistance and neuronal degeneration, which are also associated with ablation of DRP1. These results demonstrate for the first time that cytosolic CTRP1 is an ER transmembrane protein that acts as a key regulator of mitochondrial fission, providing new insight into the etiology of metabolic and neurodegenerative disorders.
해초추출물 (Petalonia binghamiae)이 저밀도지질단백질 결손 생쥐에서 혈중 콜레스테롤에 미치는 영향
손성근 ( Seong Keun Sonn ),박종길 ( Jong Gil Park ),전형준 ( Hyung Jun Jeon ),이미란 ( Mi Ran Lee ),이미니 ( Mi Ni Lee ),고희철 ( Hee Chul Ko ),강성일 ( Seong Il Kang ),이문한 ( Mun Han Lee ),김세재 ( Se Jae Kim ),오구택 ( Goo Tea 한국지질동맥경화학회(구 한국지질학회) 2008 韓國脂質學會誌 Vol.18 No.2
Sonn, Yeon Kyu,Kang, Seong Soo,Ha, Sang Keun,Kim, Yoo Hak,Lee, Chang Hoon 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.5
Soil organic carbon (SOC) has the potential to promote the soil quality for sustainability and mitigation of global warming. There is little information on organic carbon composition despite of having resistance of carbon degradation in soil. In this study, to understand the effect of volcanic ash on organic carbon composition and quantity in soil, we investigated characteristics of volcanic soil and compared organic carbon composition of soil and humic extract by using $^{13}C$-CPMAS-NMR spectra under soil profiles of Namweon series in Jeju. SOC contents of inner soil profiles were 134.8, 101.3, and 27.4 g C $kg^{-1}$ at the layer of depth 10-20, 70-80 and 90-100 cm, respectively. These layers were significantly different to soil pH, oxalate Al contents, and soil moisture contents. Alkyl C/O-alkyl C ratio in soil was higher than that of humic extracts, which was decreased below soil depth. Aromaticity of soil and humic extract was ranged from 29-38 and 24-32%, which was highest at the humic extract of 70-80 cm in soil depth. These results indicate that the changes of SOC in volcanic ash soil resulted from alteration of organic composition by pyrolysis and stability of organic carbon by allophane in volcanic ash soil.
Min Keun Kim,Yeon-Kyu Sonn,Seong-Soo Kang,Jae-Young Heo,Dae-Ho Kim,Yong-Jo Choi,Sang-Dae Lee,Hyun-Yul Shin,Yong Sik Ok,Young Han Lee 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.4
The monitoring of soil fertility changes in orchard is very important for agricultural sustainability. Field monitoring was performed to evaluate the soil chemical properties of 140 orchard (23 sites for sandy loam, 88 sites for loam, 28 sites for silt loam, and 1 site for loamy fine sand) in Gyeongnam province every 4 years from 2002 to 2014. Soil chemical properties such as pH, electrical conductivity, amount of organic matter (OM), available phosphate (P₂O5), lime requirement (LR), exchangeable potassium (K), calcium (Ca), magnesium (Mg), and sodium were analyzed. The amount of OM, exchangeable K, Ca, and Mg were significantly increased as cultivation year increases. The frequency distribution within optimum range of subsoil chemical properties in 2014 was 34.3% for pH, 35.0% for OM, 17.1% for available P₂O5, 22.9% for exchangeable K, 15.7% for exchangeable Ca, and 22.1% for exchangeable Mg. In addition, the available P₂O5 and exchangeable calcium were excess level with portions of 69.3% and 48.6%, respectively. The soil chemical properties in the topsoil and subsoil showed that soil pH was significantly higher in sandy loam soil than those from the loam and silt loam soils. The OM, exchangeable K, Mg, and LR of loam soil were higher than those from the sandy loam soil. These results indicated that a balanced management of soil chemical properties as affected by soil texture can improve the amount of fertilizer applied for sustainable agriculture in orchard field.
Kim, Min Keun,Sonn, Yeon-Kyu,Kang, Seong-Soo,Heo, Jae-Young,Kim, Dae-Ho,Choi, Yong-Jo,Lee, Sang-Dae,Shin, Hyun-Yul,Ok, Yong Sik,Lee, Young Han 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.4
The monitoring of soil fertility changes in orchard is very important for agricultural sustainability. Field monitoring was performed to evaluate the soil chemical properties of 140 orchard (23 sites for sandy loam, 88 sites for loam, 28 sites for silt loam, and 1 site for loamy fine sand) in Gyeongnam province every 4 years from 2002 to 2014. Soil chemical properties such as pH, electrical conductivity, amount of organic matter (OM), available phosphate ($P_2O_5$), lime requirement (LR), exchangeable potassium (K), calcium (Ca), magnesium (Mg), and sodium were analyzed. The amount of OM, exchangeable K, Ca, and Mg were significantly increased as cultivation year increases. The frequency distribution within optimum range of subsoil chemical properties in 2014 was 34.3% for pH, 35.0% for OM, 17.1% for available $P_2O_5$, 22.9% for exchangeable K, 15.7% for exchangeable Ca, and 22.1% for exchangeable Mg. In addition, the available $P_2O_5$ and exchangeable calcium were excess level with portions of 69.3% and 48.6%, respectively. The soil chemical properties in the topsoil and subsoil showed that soil pH was significantly higher in sandy loam soil than those from the loam and silt loam soils. The OM, exchangeable K, Mg, and LR of loam soil were higher than those from the sandy loam soil. These results indicated that a balanced management of soil chemical properties as affected by soil texture can improve the amount of fertilizer applied for sustainable agriculture in orchard field.
Yeon Kyu Sonn,Seong Soo Kang,Sang Keun Ha,Yoo Hak Kim,Chang Hoon Lee 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.5
Soil organic carbon (SOC) has the potential to promote the soil quality for sustainability and mitigation of global warming. There is little information on organic carbon composition despite of having resistance of carbon degradation in soil. In this study, to understand the effect of volcanic ash on organic carbon composition and quantity in soil, we investigated characteristics of volcanic soil and compared organic carbon composition of soil and humic extract by using <SUP>13</SUP>C-CPMAS-NMR spectra under soil profiles of Namweon series in Jeju. SOC contents of inner soil profiles were 134.8, 101.3, and 27.4 g C kg<SUP>-1</SUP> at the layer of depth 10-20, 70-80 and 90-100 cm, respectively. These layers were significantly different to soil pH, oxalate Al contents, and soil moisture contents. Alkyl C/O-alkyl C ratio in soil was higher than that of humic extracts, which was decreased below soil depth. Aromaticity of soil and humic extract was ranged from 29-38 and 24-32%, which was highest at the humic extract of 70-80 cm in soil depth. These results indicate that the changes of SOC in volcanic ash soil resulted from alteration of organic composition by pyrolysis and stability of organic carbon by allophane in volcanic ash soil.
이영한(Young-Han Lee),손연규(Yeon Kyu Sonn),이성태(Seong-Tae Lee),허재영(Jae-Young Heo),김민근(Min-Keun Kim),김은석(Eon-Seok Kim),송원두(Won-Doo Song),장용선(Yong-Sun Zhang),전원태(Weon-Tai Jeon),옥용식(Yong Sik Ok) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.2
경남지역 논토양의 양분관리를 위한 기초자료를 제공하기 위해 260 지점의 화학성분 변동을 1999년부터 2011년까지 4년 주기로 분석하였다. 논토양 pH, 유기물 함량, 유효인산 함량, 유효규산 함량, 치환성 칼슘 및 마그네슘 함량은 1999년에 비해 2011년에 유의적으로 증가하였다. 유기물 함량의 초과비율은 1999년 40.0%, 2003년 30.4%, 2007년 48.5%, 2011년 50.8%로 증가하였다. 유효인산 함량의 초과비율은 1999년 55.0%, 2003년 57.7%, 2007년 52.7%, 2011년 63.5%로 2배 이상 과잉 집적되었다. 유기물 함량은 홍적대지에서 가장 높았고 유효인산 함량은 산록경사지에서 가장 높았다. 논토양의 통계분석과 주성분 분석을 통하여 경남지역 논토양의 유효인산 함량은 지형별 화학특성을 구별할 수 있는 중요인자로 판단되었다. Sustainable agriculture requires reliable information on the spatial distribution of the soil chemical properties for effective management of paddy fields. In order to provide adequate soil nutritional information for environmental-friendly agriculture, we investigated the soil chemical properties for 260 paddy soils sampled in Gyeongnam Province from 1999 to 2011 by four years of interval. Soil chemical properties of pH, organic matter, available phosphate and silicate, exchangeable potassium, calcium, and magnesium contents were analyzed. The pH value, organic matter, available phosphate and silicate, and exchangeable calcium and magnesium in paddy soils were significantly elevated in 2011 compared to 1999. The excessive levels of organic matter and available phosphate in paddy soils were detected in 2011. The soil available phosphate was highest in mountain foot-slope (p〈 0.05) and the soil organic matter was highest in diluvial terrace (p〈 0.05). It revealed that the soil available phosphate was the responsible factor for the differentiation of soil chemical properties by the topography in paddy soils.