TY - GEN AU - Lubin,M TI - Observations on the shape of the 50S ribosomal subunit SN - 0027-8424 PY - 1969///0320 KW - Centrifugation, Density Gradient KW - Escherichia coli KW - analysis KW - Microscopy, Electron KW - Ribosomes KW - Staining and Labeling N1 - Publication Type: Journal Article UR - https://doi.org/10.1073/pnas.61.4.1454 ER -