한국자기공명학회논문지 (Journal of the Korean Magnetic Resonance Society)

한국자기공명학회 (Korean Magnetic Resonance Society)
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Backbone 1H, 15N and 13C Resonance Assignment and Secondary Structure Prediction of HP0062 (O24902_HELPY) from Helicobacter pylori

  • Jang, Sun-Bok (Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Ma, Chao (Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Park, Sung-Jean (Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Kwon, Ae-Ran (Department of Herbal Skin Care, College of Herbal Bio-Industry, Daegu Haany University) ;
  • Lee, Bong-Jin (Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University)
  • 발행 : 2009.12.20
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초록

HP0062 is an 86 residue hypothetical protein from Helicobacter pylori strain 26695. HP0062 was identified ESAT-6/WXG100 superfamily protein based on structure and sequence alignment and also contains leucine zipper domain sequence. Here, we report the sequence-specific backbone resonance assignment of HP0062. About 97.7% of all $^1H_N,\;^{15}N,\;^{13}C_{\alpha},\;^{13}C_{\beta}\;and\;^{13}C=O$ resonances were assigned unambiguously. We could predict the secondary structure of HP0062 by analyzing the deviation of the $^{13}C_{alpha}\;and\;^{13}C_{\beta}$ chemical shifts from their respective random coil values. Secondary structure prediction shows that HP0062 consist of two ${\alpha}$-helices. This study is a prerequisite for determining the solution structure of HP0062 and can be used for the study on interaction between HP0062 and DNA and other Helicobacter pylori proteins.

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