1H, 13C and 15N chemical shift assignments for the cyclic-nucleotide binding homology domain of a KCNH channel

被引:2
作者
Li, Qingxin [1 ]
Ng, Hui Qi [2 ]
Kang, CongBao [2 ]
机构
[1] Agcy Sci Technol & Res, Inst Chem & Engn Sci, Singapore 138669, Singapore
[2] Agcy Sci Technol & Res, Ctr Expt Therapeut, Singapore 138669, Singapore
关键词
Voltage-gated potassium channel; NMR; Cyclic-nucleotide binding domain; Resonance assignment; KCNH channel; HERG; EAG;
D O I
10.1007/s12104-014-9544-4
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
The KCNH family of ion channels plays important roles in heart and nerve cells. The C-terminal region of the KCNH channel contains a cyclic-nucleotide binding homology domain (CNBHD) which is important for channel gating through interaction with the eag domain. To study the solution structure of CNBHD of the KCNH channel of zebrafish, we over-expressed and purified this domain from E. coli. We report the resonance assignments of the CNBHD. The assignments will allow us to perform structural and dynamic studies for this domain, which will shed light on its role in channel gating.
引用
收藏
页码:55 / 58
页数:4
相关论文
共 15 条
  • [1] Structure of the carboxy-terminal region of a KCNH channel
    Brelidze, Tinatin I.
    Carlson, Anne E.
    Sankaran, Banumathi
    Zagotta, William N.
    [J]. NATURE, 2012, 481 (7382) : 530 - U147
  • [2] Crystal structure and functional analysis of the HERG potassium channel N terminus: A eukaryotic PAS domain
    Cabral, JHM
    Lee, A
    Cohen, SL
    Chait, BT
    Li, M
    Mackinnon, R
    [J]. CELL, 1998, 95 (05) : 649 - 655
  • [3] NMRPIPE - A MULTIDIMENSIONAL SPECTRAL PROCESSING SYSTEM BASED ON UNIX PIPES
    DELAGLIO, F
    GRZESIEK, S
    VUISTER, GW
    ZHU, G
    PFEIFER, J
    BAX, A
    [J]. JOURNAL OF BIOMOLECULAR NMR, 1995, 6 (03) : 277 - 293
  • [4] The structural mechanism of KCNH-channel regulation by the eag domain
    Haitin, Yoni
    Carlson, Anne E.
    Zagotta, William N.
    [J]. NATURE, 2013, 501 (7467) : 444 - +
  • [5] Johnson Bruce A, 2004, Methods Mol Biol, V278, P313
  • [6] Kim YM, 2013, BIOMOL NMR ASSIGN, DOI [10.1007/s12104-010-9248-3, DOI 10.1007/S12104-010-9248-3]
  • [7] NMR solution structure of the N-terminal domain of hERG and its interaction with the S4-S5 linker
    Li, Qingxin
    Gayen, Shovanlal
    Chen, Angela Shuyi
    Huang, Qiwei
    Raida, Manfred
    Kang, CongBao
    [J]. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 2010, 403 (01) : 126 - 132
  • [8] 1H, 13C and 15N chemical shift assignments for the N-terminal domain of the voltage-gated potassium channel-hERG
    Li, Qingxin
    Raida, Manfred
    Kang, CongBao
    [J]. BIOMOLECULAR NMR ASSIGNMENTS, 2010, 4 (02) : 211 - 213
  • [9] Structural, Biochemical, and Functional Characterization of the Cyclic Nucleotide Binding Homology Domain from the Mouse EAG1 Potassium Channel
    Marques-Carvalho, Maria J.
    Sahoo, Nirakar
    Muskett, Frederick W.
    Vieira-Pires, Ricardo S.
    Gabant, Guillaume
    Cadene, Martine
    Schoenherr, Roland
    Morais-Cabral, Joao H.
    [J]. JOURNAL OF MOLECULAR BIOLOGY, 2012, 423 (01) : 34 - 46
  • [10] An evaluation of chemical shift index-based secondary structure determination in proteins: influence of random coil chemical shifts.
    Mielke S.P.
    Krishnan V.V.
    [J]. Journal of Biomolecular NMR, 2004, 30 (2) : 143 - 153