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The comparison with PDE5 is inferred from sequence similarity and the reconstructed organisation.\nexposure: Solubilised rod PDE6 depleted of its gamma subunits, with immunolabelling\nevidence_span: {\"source_cache\": \"artifacts/sildenafil-research/11453687.abstract.txt\", \"locator\": \"Indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"54fdc1cf336b81568055fa21b19ad21600db5bf276dc5dc9e1dcb490cb63de30\", \"start_char\": 0, \"end_char\": 1312, \"text_sha256\": \"54fdc1cf336b81568055fa21b19ad21600db5bf276dc5dc9e1dcb490cb63de30\"}\n[sil-p11453687] Molecular organization of bovine rod cGMP-phosphodiesterase 6. 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