{"id":47349,"topic":"ai","source":"Phys.org","title":"AI tools for predicting protein folding produce chemically impossible structures and need human oversight - Phys.org","url":"https://phys.org/news/2026-07-ai-tools-protein-chemically-impossible.html","url_hash":"71d7a2fa383ead1a75f08fb02cfe8372b988b24e","author":"","summary":"<a href=\"https://news.google.com/rss/articles/CBMifkFVX3lxTE5rLWZHQ2dUNVNma0NmMEdZdzRlUnBYcDFKSlBwTnhqSmFGakYyQnUwWDBHYXYyeXgxQVktZEhfZmNBZEVacHZuNmtrLTRUNFFRZlR5WllvX01BbmtqNFZMVmxBRmZsVlJuLVBXRU53UHVCakdTQXVrSzliRUpmQQ?oc=5\" target=\"_blank\">AI tools for predicting protein folding produce chemically impossible structures and need human oversight</a>&nbsp;&nbsp;<font color=\"#6f6f6f\">Phys.org</font>","content":null,"image_url":null,"lang":"en","published_at":"2026-07-27T16:20:03+00:00","fetched_at":"2026-07-27T17:15:04+00:00","status":"read","starred":0,"extract_state":"failed","summary_auto":null,"cluster_id":null,"extract_retries":2,"extract_error":"http_403","contract_version":"news_item.v1","format_contract_version":"news_item_formats.v1","dedup_url":"https://phys.org/news/2026-07-ai-tools-protein-chemically-impossible.html","quality_profile":{"profile_version":"extraction_quality.v2","bucket":"failed","confidence":0.0,"failure_kind":"http","retryable":false,"retry_after_attempts":0,"reason":"Low confidence: HTTP extraction failure (http_403).","operator_guidance":{"severity":"action_required","recommended_action":"manual_review","next_step":"Open diagnostics and review the original source manually before use.","operator_label":"Manual review","can_retry":false,"can_use_summary":false,"diagnostics_required":true},"content_depth":{"contract_version":"content_depth.v1","category":"summary_only","label":"Summary only","has_full_text":false,"has_summary":true,"content_length":0,"summary_length":401,"usable_text_length":401,"source_field":"summary"},"legacy_collapsed":false,"signals":{"extract_state":"failed","extract_error":"http_403","extract_retries":2,"content_length":0,"summary_length":401}},"news_item":{"id":47349,"canonical_url":"https://phys.org/news/2026-07-ai-tools-protein-chemically-impossible.html","source_url":"https://phys.org/news/2026-07-ai-tools-protein-chemically-impossible.html","title":"AI tools for predicting protein folding produce chemically impossible structures and need human oversight - 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