pcDNA3.1(+) Mammalian Expression Vector

评测依据

• review_count：580
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[2000,4999]
• dimension：best_value
• sources：["京东","天猫","Thermo Fisher官网"]
• time_range：{"from":"2026-06-26 04:33:51","to":"2026-06-26 04:33:51"}
• intros：{"brand_intro":"Thermo Fisher Scientific是全球生命科学领域的领导者，总部位于美国马萨诸塞州。旗下Invitrogen品牌提供超过5000种载体和克隆试剂，以严格的质量控制和全面的技术支持著称，是分子生物学实验室的首选供应商之一。","product_intro":"pcDNA3.1(+)是经典的哺乳动物表达载体，含CMV启动子和多克隆位点，适用于高水平的瞬时和稳定表达。载体带有新霉素抗性基因（G418筛选），并包含T7启动子用于体外转录。该载体经过优化，在HEK293和CHO细胞中表达效率优异。","key_specs":["载体类型：哺乳动物表达载体","启动子：CMV","筛选标记：新霉素（G418）","多克隆位点：HindIII, KpnI, BamHI等","复制子：pUC ori","宿主：哺乳动物细胞"]}
• alt_products：[{"product_name":"pcDNA3.1(+) Mammalian Expression Vector","brand":"Thermo Fisher Scientific","model":"V79020","price":2850},{"product_name":"pEGFP-C1 Vector","brand":"Clontech (Takara Bio USA)","model":"6084-1","price":2980},{"product_name":"pCold I DNA Vector","brand":"Takara Bio","model":"3361","price":3200}]
• kol_quotes：["《Nature Protocols》中多次推荐该载体用于蛋白表达","冷泉港实验室将其列为标准教学载体"]
• scoring_breakdown：[{"source":"word_of_mouth","score":92.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞其稳定性和高表达水平，尤其在HEK293T细胞中瞬时转染效率可达80%以上。多位研究者提到该载体测序结果一致性好，酶切位点丰富，便于克隆操作。少数反馈指出大片段插入时表达量下降，但整体满意度高，是实验室常备载体。","source_count":3}},{"source":"objective","score":86.63216572190728,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.7,"price":2850,"wom_score":92.1}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":580,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["《Nature Protocols》中多次推荐该载体用于蛋白表达","冷泉港实验室将其列为标准教学载体"]}}]
• method_version：v2
• search_visual：null