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MolGate — Module 3: Protein Preparation (Engine B)
人機決策層(單一腳本跑完):
Stage 15:有偵測到輔因子/金屬才停,否則一路向下
Stage 17:僅 GPCR/金屬酶相關標靶才停,否則一路向下
Flag 16/18:PROPKA/鹽橋占位(SKIPPED)
最後寫入 prep_decisions.json,並設 ready_for_engine_e = true(供 Engine C 銜接)
依賴:biopython;Index 載入與 Engine A 共用(import molgate_module3_engineA)
"""
from __future__ import annotations
import argparse
import json
import sys
from datetime import datetime
from pathlib import Path
from typing import Any
from Bio.PDB import PDBParser
_PKG_ROOT = Path(__file__).resolve().parent
_UI_ROOT = _PKG_ROOT.parent
if str(_PKG_ROOT) not in sys.path:
sys.path.insert(0, str(_PKG_ROOT))
if str(_UI_ROOT) not in sys.path:
sys.path.insert(0, str(_UI_ROOT))
from molgate_module3_engineA import build_engine_entry, load_master_index_file
from molgate_ui.console_utf8 import configure_console_utf8, should_prompt_interactive
from molgate_ui.protein_families import family_needs_stage17_hitl
configure_console_utf8()
SCHEMA_VERSION = "0.3"
PREP_DECISIONS_SCHEMA = "0.3"
CRYSTALLIZATION_HET: set[str] = {
"HOH", "WAT", "GOL", "EDO", "PEG", "MPD",
"SO4", "PO4", "ACT", "DMS", "FMT", "TRS", "MES", "EPE",
"CL", "NA", "K", "BR", "IOD", "NO3", "NH4",
}
METAL_RESNAMES: set[str] = {
"ZN", "MG", "MN", "FE", "FE2", "FES", "CU", "NI", "CO", "MO", "W", "V",
"CD", "HG", "PT", "AU", "AG", "PB", "CA", "SR", "BA", "RB", "CS", "LI",
"CR", "EU", "GD", "SM", "IR", "RU", "RH", "OS", "RE", "TA",
}
def save_stage(session_dir: Path, stage: int, name: str, data: dict) -> dict:
data = dict(data)
data["_stage"] = stage
data["_name"] = name
data["_timestamp"] = datetime.now().isoformat()
data["_schema_version"] = SCHEMA_VERSION
path = session_dir / f"stage_{stage:02d}_{name}.json"
path.write_text(json.dumps(data, indent=2, ensure_ascii=False), encoding="utf-8")
return data
def load_cleaned_pdb(session_dir: Path) -> Path:
path = session_dir / "protein" / "cleaned.pdb"
if not path.is_file():
raise FileNotFoundError("找不到 cleaned.pdb,請先跑 Engine A")
return path
def infer_kept_chains(session_dir: Path, structure) -> list[str]:
s12 = session_dir / "stage_12_chains.json"
if s12.is_file():
try:
data = json.loads(s12.read_text(encoding="utf-8"))
kc = data.get("kept_chains")
if isinstance(kc, list) and kc:
return kc
except (json.JSONDecodeError, OSError, KeyError):
pass
return sorted({c.id for m in structure for c in m})
def load_prep_decisions(session_dir: Path) -> dict[str, Any]:
path = session_dir / "prep_decisions.json"
if path.is_file():
return json.loads(path.read_text(encoding="utf-8"))
return {
"schema_version": PREP_DECISIONS_SCHEMA,
"decisions": {},
"flags": [],
}
def save_prep_decisions(session_dir: Path, decisions: dict[str, Any]) -> None:
path = session_dir / "prep_decisions.json"
decisions = dict(decisions)
decisions["_timestamp"] = datetime.now().isoformat()
path.write_text(json.dumps(decisions, indent=2, ensure_ascii=False), encoding="utf-8")
def prompt_choice(
options: list[str],
label: str,
default: int = 0,
*,
non_interactive: bool = False,
) -> int:
if not should_prompt_interactive(non_interactive=non_interactive):
print(f" [AUTO] 非互動:{label} → 選項 [{default}]")
return default
print(f"\n ── {label} ──")
for i, opt in enumerate(options):
marker = "(預設)" if i == default else ""
print(f" [{i}] {opt}{marker}")
while True:
try:
raw = input(f" 請輸入編號(直接 Enter = {default}):").strip()
if raw == "":
return default
idx = int(raw)
if 0 <= idx < len(options):
return idx
except (ValueError, KeyboardInterrupt):
pass
print(" 請輸入有效編號")
def prompt_yes_no(
question: str,
default: bool = True,
*,
non_interactive: bool = False,
) -> bool:
if not should_prompt_interactive(non_interactive=non_interactive):
print(f" [AUTO] 非互動:{question} → {'Y' if default else 'N'}")
return default
default_str = "Y/n" if default else "y/N"
while True:
try:
raw = input(f" {question} [{default_str}]:").strip().lower()
if raw == "":
return default
if raw in ("y", "yes"):
return True
if raw in ("n", "no"):
return False
except KeyboardInterrupt:
sys.exit(0)
print(" 請輸入 y 或 n")
def _cocrystal_resnames(entry: dict[str, Any]) -> set[str]:
names: set[str] = set()
for key in ("cocrystal_het", "het_id"):
v = entry.get(key)
if isinstance(v, str) and v.strip():
names.add(v.strip().upper())
try:
from molgate_ui.anchor_routing import parse_pocket_rule_het
pr_het = parse_pocket_rule_het(str(entry.get("pocket_rule") or ""))
if pr_het:
names.add(pr_het)
except ImportError:
pass
return names
def _anchor_het_keep_keys(
entry: dict[str, Any],
detected: list[dict[str, Any]],
) -> set[tuple[str, str, Any]]:
"""Never strip anchor/cocrystal HET instances during Stage 15 removal."""
anchor = _cocrystal_resnames(entry)
if not anchor:
return set()
return {_het_key(d) for d in detected if str(d.get("resname") or "").upper() in anchor}
def _normalize_override(raw: Any) -> dict[str, str]:
if not isinstance(raw, dict):
return {}
out: dict[str, str] = {}
for k, v in raw.items():
if isinstance(k, str) and v is not None:
out[k.strip()] = str(v).strip()
return out
def _het_key(d: dict[str, Any]) -> tuple[str, str, Any]:
return (
str(d.get("resname", "")).strip().upper(),
str(d.get("chain", "")).strip(),
d.get("resseq"),
)
def detect_cofactor_candidates(
entry: dict[str, Any],
structure,
kept_chains: list[str],
) -> tuple[list[dict[str, Any]], list[str]]:
"""Scan cleaned PDB for cofactor/metal HETATM (excludes cocrystal & crystallization)."""
cocrystal = _cocrystal_resnames(entry)
detected: list[dict[str, Any]] = []
seen: set[tuple[str, str, Any]] = set()
for model in structure:
for chain in model:
if chain.id not in kept_chains:
continue
for res in chain:
resname = res.get_resname().strip().upper()
hetflag = res.get_id()[0].strip()
if not (hetflag == "H_" or hetflag.startswith("H")):
continue
if resname in cocrystal:
continue
if resname in METAL_RESNAMES:
key = (resname, chain.id, res.get_id()[1])
if key not in seen:
seen.add(key)
detected.append({
"resname": resname,
"chain": chain.id,
"resseq": res.get_id()[1],
"kind": "metal",
})
continue
if resname in CRYSTALLIZATION_HET:
continue
key = (resname, chain.id, res.get_id()[1])
if key not in seen:
seen.add(key)
detected.append({
"resname": resname,
"chain": chain.id,
"resseq": res.get_id()[1],
"kind": "het",
})
index_flagged: list[str] = []
cofactor_index = entry.get("cofactor")
metal_index = entry.get("metal")
if cofactor_index:
index_flagged.append(f"cofactor:{cofactor_index}")
if metal_index:
index_flagged.append(f"metal:{metal_index}")
return detected, index_flagged
def detect_stage15_from_session(
session_dir: Path,
target: str,
*,
index_path: Path | None = None,
) -> dict[str, Any]:
"""Preview Stage 15 cofactor/metal candidates (no stage files written)."""
master = load_master_index_file(index_path)
entry = build_engine_entry(master, target, session_dir)
pdb_id = (entry.get("pdb_id") or "").upper()
if not pdb_id:
raise ValueError("index entry missing pdb_id")
cleaned_path = load_cleaned_pdb(session_dir)
parser = PDBParser(QUIET=True)
structure = parser.get_structure(pdb_id, str(cleaned_path))
kept_chains = infer_kept_chains(session_dir, structure)
detected, index_flagged = detect_cofactor_candidates(entry, structure, kept_chains)
return {
"ok": True,
"target": target.upper(),
"pdb_id": pdb_id,
"kept_chains": kept_chains,
"detected": detected,
"index_flagged": index_flagged,
"needs_confirm": bool(detected or index_flagged),
"count": len(detected),
}
def stage15_cofactor(
entry: dict[str, Any],
structure,
kept_chains: list[str],
session_dir: Path,
*,
non_interactive: bool,
auto_action: str = "",
selective_keep: list[dict[str, Any]] | None = None,
) -> dict[str, Any]:
print("\n[Stage 15] 輔因子/金屬處理...")
detected, index_flagged = detect_cofactor_candidates(entry, structure, kept_chains)
needs_confirm = len(detected) > 0 or len(index_flagged) > 0
if not needs_confirm:
print(" ✓ 無需確認的輔因子/金屬候選,一路向下(AUTO)")
print(" → Status: AUTO")
return save_stage(session_dir, 15, "cofactor", {
"status": "AUTO",
"detected": [],
"index_flagged": [],
"action": "none",
"kept": [],
"removed": [],
})
print(" ⚠ 偵測到輔因子/金屬候選(人機確認):")
for d in detected:
print(f" [{d.get('kind', 'het')}] {d['resname']} chain {d['chain']} res {d['resseq']}")
for f in index_flagged:
print(f" Master Index 標記:{f}")
if needs_confirm:
if non_interactive:
if selective_keep is None:
print(" ❌ 偵測到輔因子/金屬候選,必須由使用者逐項決定。")
print(" 系統不會自動移除或保留任何項目。")
print(" 請於 Module 3 UI 勾選後確認,或以 --het-keep-json 傳入您的選擇。")
sys.exit(1)
keep_set = {_het_key(d) for d in selective_keep}
keep_set |= _anchor_het_keep_keys(entry, detected)
kept = []
removed = []
for d in detected:
label = f"{d['resname']}:{d['chain']}:{d['resseq']}"
if _het_key(d) in keep_set:
kept.append(label)
print(f" ✓ 保留:{label}")
else:
removed.append(d["resname"])
print(f" ✗ 移除:{label}")
print(" → Status: MANUAL (使用者逐項確認)")
return save_stage(session_dir, 15, "cofactor", {
"status": "MANUAL",
"detected": detected,
"index_flagged": index_flagged,
"action": "selective",
"kept": kept,
"removed": removed,
"selective_keep": selective_keep,
})
idx = prompt_choice(
["移除全部(預設安全)", "全部保留", "逐一確認"],
label="輔因子/金屬處理方式",
default=0,
non_interactive=non_interactive,
)
anchor_keep = _anchor_het_keep_keys(entry, detected)
if idx == 0:
action = "remove_all"
kept = [
f"{d['resname']}:{d['chain']}:{d['resseq']}"
for d in detected
if _het_key(d) in anchor_keep
]
removed = [
d["resname"]
for d in detected
if _het_key(d) not in anchor_keep
] + index_flagged
if kept:
print(f" ✓ 保留 anchor HET(共晶/口袋定義):{', '.join(kept)}")
print(" ✓ 選擇:移除全部(anchor HET 除外)")
status = "MANUAL"
elif idx == 1:
action = "keep_all"
kept = [d["resname"] for d in detected] + index_flagged
removed = []
print(" ✓ 選擇:保留全部")
status = "MANUAL"
else:
kept = []
removed = []
for d in detected:
keep = prompt_yes_no(
f"保留 {d['resname']} chain {d['chain']}?",
default=False,
)
if keep:
kept.append(d["resname"])
else:
removed.append(d["resname"])
action = "selective"
status = "MANUAL"
print(f" → Status: {status}")
return save_stage(session_dir, 15, "cofactor", {
"status": status,
"detected": detected,
"index_flagged": index_flagged,
"action": action,
"kept": kept,
"removed": removed,
})
def flag16_propka(session_dir: Path) -> dict[str, Any]:
print("\n[Flag 16] PROPKA 滴定態(占位,併入 Engine B)...")
print(" → Flag: PROPKA_SKIPPED")
print(" → Status: SKIPPED")
return save_stage(session_dir, 16, "propka", {
"status": "SKIPPED",
"flag": "PROPKA_SKIPPED",
"note": "快速版占位。正式版需 PROPKA/PDB2PQR 並重跑。",
})
def stage17_override(
entry: dict[str, Any],
session_dir: Path,
*,
non_interactive: bool,
) -> dict[str, Any]:
print("\n[Stage 17] 關鍵殘基 Override...")
family = entry.get("family", "default")
override = _normalize_override(entry.get("override"))
needs_hitl = family_needs_stage17_hitl(entry) or len(override) > 0
if not needs_hitl:
print(f" ✓ family={family},非 GPCR/金屬酶優先類別且無 Index override,一路向下(AUTO)")
print(" → Status: AUTO")
return save_stage(session_dir, 17, "override", {
"status": "AUTO",
"family": family,
"override_rules": {},
})
print(f" ⚠ 需確認:family={family}(GPCR/金屬酶相關或具 Index override)")
if override:
print(f" Master Index override 建議({len(override)} 項):")
for residue, rule in override.items():
print(f" {residue} → {rule}")
else:
print(" Master Index 無預設 override,請自行確認質子化/關鍵殘基敘述")
if non_interactive:
final_rules = dict(override)
print(" ✓ --non-interactive:採用 Index 之 override(無則空)")
return save_stage(session_dir, 17, "override", {
"status": "AUTO",
"family": family,
"override_rules": final_rules,
})
final_rules: dict[str, str] = {}
status = "MANUAL"
if override:
accepted = prompt_yes_no(
"接受上述 override 建議?",
default=True,
non_interactive=non_interactive,
)
if accepted:
final_rules = dict(override)
print(" ✓ 接受建議 override")
else:
print(" 手動輸入 override(格式:殘基鍵=狀態,例 HIS114=protonated)")
print(" 輸入 done 或空白行結束")
while True:
try:
raw = input(" 輸入:").strip()
if raw.lower() == "done" or raw == "":
break
if "=" in raw:
k, v = raw.split("=", 1)
final_rules[k.strip()] = v.strip()
print(f" ✓ 加入:{k.strip()} → {v.strip()}")
except KeyboardInterrupt:
break
else:
print(" 手動輸入 override(殘基鍵=狀態);直接 Enter 結束=無 override")
while True:
try:
raw = input(" 輸入:").strip()
if raw.lower() == "done" or raw == "":
break
if "=" in raw:
k, v = raw.split("=", 1)
final_rules[k.strip()] = v.strip()
print(f" ✓ 加入:{k.strip()} → {v.strip()}")
except KeyboardInterrupt:
break
print(f" → Status: {status}")
return save_stage(session_dir, 17, "override", {
"status": status,
"family": family,
"override_rules": final_rules,
})
def flag18_saltbridge(session_dir: Path) -> dict[str, Any]:
print("\n[Flag 18] 鹽橋分析(占位,併入 Engine B)...")
print(" → Flag: SALT_BRIDGE_SKIPPED")
print(" → Status: SKIPPED")
return save_stage(session_dir, 18, "saltbridge", {
"status": "SKIPPED",
"flag": "SALT_BRIDGE_SKIPPED",
"note": "快速版占位。正式版需 PROPKA 完成後再分析。",
})
def _merge_flags(existing: list[Any], new_flags: list[str]) -> list[str]:
out: list[str] = []
for x in existing or []:
if isinstance(x, str) and x not in out:
out.append(x)
for f in new_flags:
if f not in out:
out.append(f)
return out
def _update_manifest_engine_b(session_dir: Path, prep_path: Path) -> None:
try:
from molgate_manifest import read_manifest, rel_path, write_manifest
except ImportError:
return
mp = session_dir / "molgate_run_manifest.json"
if not mp.is_file():
return
try:
m = read_manifest(session_dir)
paths = dict(m.get("paths") or {})
rmap = dict(paths.get("relative") or {})
rmap["prep_decisions"] = rel_path(session_dir, prep_path)
paths["relative"] = rmap
paths["prep_decisions_absolute"] = str(prep_path.resolve())
ns = dict(paths.get("next_step") or {})
ns["after_module3_engine_b"] = {
"read_prep_decisions_from": rmap["prep_decisions"],
"hint": "下一步:Engine C(receptor.pdbqt,Stage 19/20);需 ready_for_engine_e=true",
}
paths["next_step"] = ns
m["paths"] = paths
pl = dict(m.get("pipeline") or {})
pl["module3_engine_b"] = {
"status": "complete",
"completed_at": datetime.now().isoformat(),
"stages": ["15", "16", "17", "18"],
}
m["pipeline"] = pl
summ = dict(m.get("summary") or {})
summ["prep_decisions_relative"] = rmap["prep_decisions"]
summ["ready_for_engine_e"] = True
m["summary"] = summ
write_manifest(session_dir, m)
except Exception:
pass
def run_engine_b(
session_dir: Path,
target: str,
*,
index_path: Path | None = None,
skip_manifest_target_check: bool = False,
non_interactive: bool = False,
stage15_keep: list[dict[str, Any]] | None = None,
) -> dict[str, Any]:
print("=" * 55)
print(" MolGate — Module 3 Engine B(人機決策層)")
print(" Stage 15 → Flag 16 → Stage 17 → Flag 18 → prep_decisions.json")
print("=" * 55)
try:
master = load_master_index_file(index_path)
except FileNotFoundError as e:
print(f"❌ {e}")
sys.exit(1)
try:
entry = build_engine_entry(master, target, session_dir)
except KeyError:
print(
f"[ERROR] Target '{target}' 不在 Master Index,"
"且 session 內無 session_index.json"
)
sys.exit(1)
if entry.get("allowed") is False:
print(f"❌ Target '{target}' 在 Master Index 標記為 allowed=false,已中止")
sys.exit(1)
if not skip_manifest_target_check:
try:
from molgate_manifest import validate_target_matches_manifest
validate_target_matches_manifest(session_dir, target)
except FileNotFoundError:
pass
except ValueError as e:
print(f"❌ {e}")
sys.exit(1)
pdb_id = (entry.get("pdb_id") or "").upper()
if not pdb_id:
print("❌ 條目缺少 pdb_id")
sys.exit(1)
try:
cleaned_path = load_cleaned_pdb(session_dir)
except FileNotFoundError as e:
print(f"❌ {e}")
sys.exit(1)
parser = PDBParser(QUIET=True)
structure = parser.get_structure(pdb_id, str(cleaned_path))
kept_chains = infer_kept_chains(session_dir, structure)
print(f"\n Target:{target.upper()} | PDB:{pdb_id}")
print(f" cleaned.pdb:{cleaned_path}")
print(f" kept_chains:{kept_chains}")
try:
r15 = stage15_cofactor(
entry,
structure,
kept_chains,
session_dir,
non_interactive=non_interactive,
auto_action="",
selective_keep=stage15_keep,
)
r16 = flag16_propka(session_dir)
r17 = stage17_override(
entry,
session_dir,
non_interactive=non_interactive,
)
r18 = flag18_saltbridge(session_dir)
except Exception as e:
print(f"\n❌ Pipeline stopped: {e}")
sys.exit(1)
prep = load_prep_decisions(session_dir)
prep["schema_version"] = PREP_DECISIONS_SCHEMA
prep["target"] = target.upper()
prep["pdb_id"] = pdb_id
ch = entry.get("cocrystal_het") or entry.get("het_id")
prep["cocrystal_het"] = ch.strip().upper() if isinstance(ch, str) and ch.strip() else None
dec = dict(prep.get("decisions") or {})
dec["stage15_cofactor"] = {
"action": r15["action"],
"kept": r15["kept"],
"removed": r15["removed"],
"detected": r15["detected"],
"index_flagged": r15["index_flagged"],
"status": r15["status"],
}
dec["stage16_propka"] = {
"status": r16["status"],
"flag": r16.get("flag"),
"note": r16.get("note"),
}
dec["stage17_override"] = {
"rules": r17["override_rules"],
"family": r17["family"],
"status": r17["status"],
}
dec["stage18_saltbridge"] = {
"status": r18["status"],
"flag": r18.get("flag"),
"note": r18.get("note"),
}
prep["decisions"] = dec
prep["engines"] = dict(prep.get("engines") or {})
prep["engines"]["engine_b"] = {
"status": "complete",
"completed_at": datetime.now().isoformat(),
"stages": ["15", "16", "17", "18"],
}
flags: list[str] = []
if r16.get("flag"):
flags.append(str(r16["flag"]))
if r18.get("flag"):
flags.append(str(r18["flag"]))
if r15["status"] == "MANUAL":
flags.append("STAGE15_MANUAL_COFACTOR")
if r17["status"] == "MANUAL":
flags.append("STAGE17_MANUAL_OVERRIDE")
prep["flags"] = _merge_flags(prep.get("flags"), flags)
prep["ready_for_engine_e"] = True
prep_path = session_dir / "prep_decisions.json"
save_prep_decisions(session_dir, prep)
_update_manifest_engine_b(session_dir, prep_path)
print("\n" + "=" * 55)
print(" Engine B 完成 ✓")
print(" ready_for_engine_e = true")
print(f" 契約:{prep_path}")
print(f" Session:{session_dir}")
print("=" * 55)
return {
"stage15": r15,
"stage16": r16,
"stage17": r17,
"stage18": r18,
"prep_decisions": str(prep_path),
}
if __name__ == "__main__":
ap = argparse.ArgumentParser(description="MolGate Module 3 Engine B")
ap.add_argument("--session-dir", required=True)
ap.add_argument("--target", required=True)
ap.add_argument(
"--index",
type=Path,
default=None,
help="Master Index JSON(預設:MolGate 目錄下 master_index.json)",
)
ap.add_argument(
"--skip-manifest-target-check",
action="store_true",
help="不與 molgate_run_manifest.json 的 target 交叉驗證",
)
ap.add_argument(
"--non-interactive",
action="store_true",
help="Stage 15/17 不詢問(15 有候選時必須 --het-keep-json;17 採 Index override)",
)
ap.add_argument(
"--het-keep-json",
type=Path,
default=None,
help="Stage 15 使用者逐項選擇:JSON 陣列 [{resname, chain, resseq}, ...] 要保留的項目",
)
args = ap.parse_args()
sd = Path(args.session_dir)
if not sd.is_dir():
print(f"❌ Session 目錄不存在:{sd}")
sys.exit(1)
keep_list: list[dict[str, Any]] | None = None
if args.het_keep_json:
if not args.het_keep_json.is_file():
print(f"❌ het-keep-json 不存在:{args.het_keep_json}")
sys.exit(1)
keep_list = json.loads(args.het_keep_json.read_text(encoding="utf-8"))
run_engine_b(
sd,
args.target,
index_path=args.index,
skip_manifest_target_check=args.skip_manifest_target_check,
non_interactive=args.non_interactive,
stage15_keep=keep_list,
)
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