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지렁이 중장에서 발현되는 endo-b-1,4-glucanase의 동정 및 특성에 관한 연구Isolation and Characterization of Endo-beta-1,4-glucanase from the Midgut of the Earthworm, Eisenia andrei

Authors
이명식조성진탁은식허소영이종애박범준조현주신주옥박순철
Issue Date
Dec-2003
Publisher
한국토양동물학회
Keywords
Endoglucanase; earthworm; Eisenia andrei; midgut; glycosyl hydrolase family 9
Citation
한국토양동물학회지, v.8, no.1-2, pp 7 - 12
Pages
6
Journal Title
한국토양동물학회지
Volume
8
Number
1-2
Start Page
7
End Page
12
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/57463
Abstract
지렁이 (Eisenia andrei)의 중장에서 내생의 endoglucanase 유전자의 전체 염기 서열을 동정하였다. ORF의 길이는 1,371 bp이며, 456개의 아미노산으로 번역된다. NCBI에 등록된 가재와 흰개미의 cellulase 및 endo-β-1, 4-glucanase와 50-51%의 유사성을 보이며, 활성 부위가 잘 보존되어 있었다. 계통수 분석에서는 다른 동물 분류군에서 밝혀진 GHF9 그룹의 cellulase와 근연관계가 없음이 확인되었다.
Endogeneous endoglucanase (EC 3.2.1.4) cDNA was cloned from a representative species (Eisenia anderi) of the earthworm family Lumbricidae. Endoglucanase from the midgut of the earthworm is composed of 456 amino acids and belongs to glycosyl hydrolase family 9 (GHF9), sharing high homologies (50-51 %) with those of selected termite and crayfish. This endoglucanase consists of three consensus catalytic domains found in most microbial cellulases. A phylogenetic tree was constructed using the amino acid squence data matched through the BLASTX program and showed that GHF9 families could be divided into four groups of arthropoda, bacteria, plant and annelida.
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자연과학대학 (생명과학과)
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