majiayu000 name: pubmed-gene-drug-research description: Gene, drug compound, and disease research using NCBI Extended databases. Triggers: 基因, gene, 藥物, drug, compound, PubChem, ClinVar, 變異, variant, 臨床意義
基因與藥物研究
描述
使用 NCBI 擴展資料庫（Gene、PubChem、ClinVar）進行基因功能、藥物化合物、遺傳變異的跨資料庫研究。
觸發條件
- 「這個基因的功能是什麼？」
- 「這個藥物的結構/作用機制？」
- 「這個變異的臨床意義？」
- 提到基因名稱（如 BRCA1, TP53）
- 提到藥物化合物名稱
- 提到 ClinVar、遺傳變異
資料庫概覽
| 資料庫 | 內容 | 用途 |
|---|---|---|
| NCBI Gene | 基因功能、位置、表現 | 基因研究 |
| PubChem | 化合物結構、藥理 | 藥物研究 |
| ClinVar | 遺傳變異臨床意義 | 遺傳診斷 |
NCBI Gene 工具
搜尋基因
search_ncbi_gene(query="BRCA1 breast cancer", limit=10)
回傳：
{
"genes": [
{
"gene_id": "672",
"symbol": "BRCA1",
"name": "BRCA1 DNA repair associated",
"organism": "Homo sapiens",
"chromosome": "17",
"description": "This gene encodes a tumor suppressor...",
"aliases": ["BRCC1", "FANCS", "RNF53"]
}
]
}
取得基因詳情
get_ncbi_gene_info(gene_id="672")
回傳：
{
"gene_id": "672",
"symbol": "BRCA1",
"full_name": "BRCA1 DNA repair associated",
"chromosome": "17",
"location": "17q21.31",
"summary": "This gene encodes a tumor suppressor protein...",
"function": "DNA double-strand break repair...",
"pathways": ["Homologous recombination", "DNA damage response"],
"diseases": ["Breast-ovarian cancer syndrome", "Fanconi anemia"],
"expression": {
"tissues": ["breast", "ovary", "testis"],
"level": "ubiquitous"
},
"pubmed_references": ["12345678", "87654321"]
}
PubChem 工具
搜尋化合物
search_pubchem_compound(query="remimazolam", limit=5)
回傳：
{
"compounds": [
{
"cid": "11526795",
"name": "Remimazolam",
"formula": "C21H19BrN4O2",
"molecular_weight": 439.3,
"iupac_name": "methyl 3-[(4S)-8-bromo-1-methyl-6-(2-pyridinyl)...",
"synonyms": ["CNS-7056", "ONO-2745"]
}
]
}
取得化合物詳情
get_pubchem_compound_info(cid="11526795")
回傳：
{
"cid": "11526795",
"name": "Remimazolam",
"formula": "C21H19BrN4O2",
"molecular_weight": 439.3,
"structure": {
"canonical_smiles": "CN1C(=O)CN=C(C2=CC=CC=N2)...",
"inchi": "InChI=1S/C21H19BrN4O2/..."
},
"pharmacology": {
"mechanism": "GABA-A receptor positive allosteric modulator",
"drug_class": "Benzodiazepine",
"therapeutic_use": "Procedural sedation, general anesthesia"
},
"properties": {
"logP": 2.5,
"hydrogen_bond_donors": 0,
"hydrogen_bond_acceptors": 4,
"rotatable_bonds": 5
},
"related_pubmed": ["30217674", "28523456"]
}
ClinVar 工具
搜尋變異
search_clinvar(query="BRCA1 pathogenic", limit=20)
回傳：
{
"variants": [
{
"variation_id": "17661",
"gene": "BRCA1",
"variant_name": "NM_007294.4:c.5266dupC",
"hgvs": "p.Gln1756Profs*74",
"clinical_significance": "Pathogenic",
"condition": "Hereditary breast and ovarian cancer syndrome",
"review_status": "★★★★ (reviewed by expert panel)"
}
]
}
取得變異詳情
get_clinvar_variation(variation_id="17661")
回傳：
{
"variation_id": "17661",
"gene": "BRCA1",
"variant": {
"hgvs_c": "NM_007294.4:c.5266dupC",
"hgvs_p": "p.Gln1756Profs*74",
"variant_type": "frameshift",
"consequence": "loss of function"
},
"clinical": {
"significance": "Pathogenic",
"review_status": "reviewed by expert panel",
"last_evaluated": "2023-06-15"
},
"conditions": [
{
"name": "Hereditary breast and ovarian cancer syndrome",
"medgen_id": "C0677776",
"inheritance": "Autosomal dominant"
}
],
"population_frequency": {
"gnomAD": 0.00001,
"note": "Rare variant"
},
"evidence": {
"pubmed_references": ["12345678", "23456789"],
"functional_studies": "Loss of BRCT domain function"
}
}
跨資料庫研究流程
情境：研究 BRCA1 基因與藥物標靶
# Step 1: 基因資訊
gene_info = get_ncbi_gene_info(gene_id="672") # BRCA1
# Step 2: 相關文獻
search_literature(
query=f'"{gene_info["symbol"]}"[Gene] AND drug target',
limit=20
)
# Step 3: 相關化合物（靶向藥物）
search_pubchem_compound(query="BRCA1 inhibitor", limit=10)
# Step 4: 臨床相關變異
search_clinvar(query="BRCA1 pathogenic", limit=50)
藥物研究流程
情境：研究新藥的作用機制和相關研究
# Step 1: 化合物資訊
compound = get_pubchem_compound_info(cid="11526795") # remimazolam
# Step 2: 相關基因（藥物標靶）
search_ncbi_gene(query="GABA receptor", limit=10)
# Step 3: 臨床文獻
search_literature(
query=f'"{compound["name"]}" mechanism action',
limit=30
)
# Step 4: 藥物比較
search_literature(
query=f'"{compound["name"]}" versus midazolam',
limit=20
)
遺傳變異研究流程
情境：評估某個變異的臨床意義
# Step 1: 搜尋變異
variants = search_clinvar(query="NM_007294.4:c.5266dupC")
# Step 2: 取得詳細資訊
variant_details = get_clinvar_variation(variation_id="17661")
# Step 3: 相關基因功能
gene_info = get_ncbi_gene_info(gene_id="672")
# Step 4: 相關文獻
search_literature(
query=f'BRCA1 c.5266dupC pathogenic',
limit=20
)
# Step 5: 類似變異
search_clinvar(query="BRCA1 frameshift pathogenic", limit=30)
藥物基因組學研究
情境：研究藥物與基因變異的關係
# Step 1: 藥物資訊
drug = search_pubchem_compound(query="warfarin")
# Step 2: 相關代謝基因
cyp_genes = search_ncbi_gene(query="CYP2C9 warfarin metabolism")
# Step 3: 影響藥效的變異
variants = search_clinvar(query="CYP2C9 drug response")
# Step 4: 藥物基因組學文獻
search_literature(
query="warfarin CYP2C9 pharmacogenomics",
limit=30
)
整合報告範例
基因報告
## BRCA1 基因報告
### 基本資訊
- **基因符號**: BRCA1
- **位置**: 17q21.31
- **功能**: DNA 雙股斷裂修復
### 相關疾病
- 遺傳性乳癌卵巢癌症候群
- Fanconi 貧血
### 關鍵變異 (ClinVar)
| 變異 | 臨床意義 | 審查狀態 |
|------|----------|----------|
| c.5266dupC | Pathogenic | ★★★★ |
| c.68_69del | Pathogenic | ★★★★ |
### 相關文獻
- PMID: 12345678 - "BRCA1 and DNA repair..."
- PMID: 87654321 - "Hereditary breast cancer..."
藥物報告
## Remimazolam 藥物報告
### 基本資訊
- **CID**: 11526795
- **分子式**: C21H19BrN4O2
- **分子量**: 439.3 g/mol
### 藥理學
- **機轉**: GABA-A 受體正向異位調節劑
- **藥物分類**: 苯二氮平類
- **適應症**: 程序性鎮靜、全身麻醉
### 相關文獻
- PMID: 30217674 - "Phase 3 RCT..."
- PMID: 35678901 - "Real-world experience..."
小技巧
1. 基因搜尋技巧
# 使用官方基因符號
search_ncbi_gene(query="TP53") # ✅
search_ncbi_gene(query="p53 protein") # ⚠️ 可能找到多個
# 加入物種限制
search_ncbi_gene(query="BRCA1 human")
2. 化合物搜尋技巧
# 使用 CID 最準確
get_pubchem_compound_info(cid="11526795")
# 商品名搜尋
search_pubchem_compound(query="Lipitor") # atorvastatin
3. 變異命名法
# HGVS 標準命名
search_clinvar(query="NM_007294.4:c.5266dupC")
# 蛋白質變異
search_clinvar(query="BRCA1 p.Gln1756Profs")
# 基因 + 臨床意義
search_clinvar(query="BRCA1 pathogenic")