Premium
The cystine‐stabilized α‐helix: A common structural motif of ion‐channel blocking neurotoxic peptides
Author(s) -
Kobayashi Yuji,
Takashima Hiroyuki,
Tamaoki Haruhiko,
Kyogoku Yoshimasa,
Lambert Paul,
Kuroda Hisaya,
Chino Naoyoshi,
Watanabe Takushi X.,
Kimura Terutoshi,
Sakakibara Shumpei,
Moroder Luis
Publication year - 1991
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.360311009
Subject(s) - chemistry , charybdotoxin , cystine , structural motif , stereochemistry , ion channel , crystallography , biophysics , cysteine , biochemistry , enzyme , receptor , biology , membrane potential
Neurotoxic peptides from venoms of scorpions and honey bees exhibit a consensus pattern in the two disulfide bridgings related to the sequence portions Cys‐X‐Cys and Cys‐X‐X‐X‐Cys. A revised three‐dimensional structure of charybdotoxin, as determined by two‐dimensional nmr spectroscopy, confirms that the consensus cystine dislocation generates in all these toxins a common structural element, i.e., the cystine‐stabilized α‐helical (CSH) motif, which may be correlated with their common ion channel blocking activity.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom