机构:[a]Oncology Department, The First Affiliated Hospital of Kunming Medical College, Kunming 650032, Yunnan, China昆明医科大学附属第一医院[b]Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050016, China[c]The Affiliated Zhongda Hospital of Southeast University, Nanjing 21009, Jiangsu, China[d]Nanjing Maternal and Child Health Hospital, 123# Tianfeixiang, Baixia District, Nanjing 210004, Jiangsu, China
A novel lumbricin-like antimicrobial peptide named lumbricin-PG was isolated from skin secretions of the earthworm, Pheretima guillelmi (Michaelsen), using a procedure of one step Sephadex G-50 gel filtration and one step C(8) reverse-phase high-performance liquid chromatography (RP-HPLC). Its amino acid sequence was determined as FSRYARMRDSRPWSDRKNNYSGPQFTYPPEKAPPEKLIKWNN EGSPIFEMPAEGGHIEP by Edman degradation combined with cDNA cloning and mass spectrometry analysis. The cDNA encoding lumbricin-PG was cloned by cDNA library screening. The predicted protein from the cDNA sequence was composed of 73 amino acid residues including a mature lumbricin-PG and predicted signal peptide. It showed similarity with lumbricin antimicrobial peptide from the earthworm, Lumbricus rubellus by BLAST search. Purified lumbricin-PG exerted potential antimicrobial activities against bacteria and fungi; it showed weak hemolysis activity against human and rabbit red cells. (C) 2011 Elsevier Inc. All rights reserved.
第一作者机构:[a]Oncology Department, The First Affiliated Hospital of Kunming Medical College, Kunming 650032, Yunnan, China[b]Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050016, China
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推荐引用方式(GB/T 7714):
Wenliang Li,Sisi Li,Jian Zhong,et al.A novel antimicrobial peptide from skin secretions of the earthworm, Pheretima guillelmi (Michaelsen)[J].PEPTIDES.2011,32(6):1146-1150.doi:10.1016/j.peptides.2011.04.015.
APA:
Wenliang Li,Sisi Li,Jian Zhong,Zhu Zhu,Jingze Liu&Wenhong Wang.(2011).A novel antimicrobial peptide from skin secretions of the earthworm, Pheretima guillelmi (Michaelsen).PEPTIDES,32,(6)
MLA:
Wenliang Li,et al."A novel antimicrobial peptide from skin secretions of the earthworm, Pheretima guillelmi (Michaelsen)".PEPTIDES 32..6(2011):1146-1150