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고초균을 이용한 재조합 인간 골 형성 단백질-7의 발현과 정제
김춘광(Chun-Kwang Kim),오성덕(Sung-Duk Oh),이종일(Jong Il Rhee) 한국생물공학회 2010 KSBB Journal Vol.25 No.3
Bone morphogenetic protein-7 (BMP-7) is one of important growth factors for skeletal development and bone growth. In this work, BMP-7 was efficiently expressed in recombinant Bacillus subtilis. The mature BMP-7 protein indicated molecular weight of 15.4 kDa by Western blot assay and was secreted into culture medium with 0.35 ng/mL. The extracellular and intracellular rhBMP-7 proteins were purified by using a FPLC system with an ion exchange column and a gel filtration column. The extracellular and intracellular rhBMP-7 proteins had finally a 57.1% purity and a 36.2% purity, respectively. The purified rhBMP-7 proteins showed an intact biological activity which stimulated alkaline phophatase (ALP) activity in MC3T3-E1 cells.
해충저항성 Agb0101 벼 알레르기 유발 가능성 평가 연구
이시명 ( Sim Yung Lee ),박수윤 ( Soo Youn Park ),여윤수 ( Yun Soo Yeo ),조현석 ( Hyun Suk Cho ),권순종 ( Sun Jong Kwon ),오성덕 ( Sung Duk Oh ),오선우 ( Sun Woo Oh ),김재광 ( Jaek Wang Kim ),박순기 ( Soon Ki Park ) 한국국제농업개발학회 2015 韓國國際農業開發學會誌 Vol.27 No.1
Genetically modified crops are becoming an increasingly important feature of the agricultural landscapes. Specially, insect-resistant GM crops are the most fast growing traits in the world. We developed Insect-resistant Agb0101 rice using the cry1ac1 gene in order to support the food safety assessment of insect-resistant Agb0101 rice containing modified Cry1Ac1 (mCry1Ac1) protein. The novel protein introduced into the genetically modified crops need to be evaluated for the potential allergenecity before their introduction into the food chain to address the safety concerns of consumers for commercialization. We performed assessment for allergy. The mCry1Ac1 protein does not possess the characteristics associated with food allergens, and no posttranslational change. The mCry1Ac1 protein can be rapidly degraded in gastric and intestinal fluids and heat treatment at 100oC. In conclusion, there is a reasonable certainty of no harm resulting from the inclusion of the mCry1Ac1 protein in human food or animal feed.