TY - GEN AU - Alexeev,D G AU - Lipanov,A A TI - Poly(dA).poly(dT) is a B-type double helix with a distinctively narrow minor groove SN - 0028-0836 PY - 1987///0408 KW - Calcium KW - metabolism KW - Nucleic Acid Conformation KW - Poly dA-dT KW - Polydeoxyribonucleotides KW - Sodium KW - X-Ray Diffraction N1 - Publication Type: Journal Article UR - https://doi.org/10.1038/325821a0 ER -