TY - GEN AU - Feldman,Chris R AU - Brodie,Edmund D AU - Brodie,Edmund D AU - Pfrender,Michael E TI - Constraint shapes convergence in tetrodotoxin-resistant sodium channels of snakes SN - 1091-6490 PY - 2012///0509 KW - Amino Acid Sequence KW - Animals KW - Biological Assay KW - DNA Mutational Analysis KW - Drug Resistance KW - Geography KW - Models, Genetic KW - Molecular Conformation KW - Molecular Sequence Data KW - Mutation KW - Regression Analysis KW - Selection, Genetic KW - Sequence Homology, Amino Acid KW - Snakes KW - Sodium Channels KW - chemistry KW - Tetrodotoxin KW - pharmacology N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1073/pnas.1113468109 ER -