产品分类
SAMHD1 Knockout THP-1 Cell Line
- 产品描述
- 细胞复苏
- 细胞传代
- 细胞冻存
- 抗体验证结果
-
- 品牌: ELEM粒曼
- 商品名称: SAMHD1 Knockout THP-1 Cell Line
- 商品编号: LM02300101347
- Gene Symbol: SAMHD1 MOP5
- Ensembl ID: ENSG00000101347
- Uniprot ID: Q9Y3Z3
- 宿主细胞 / 类型: THP-1/人单核细胞白血病
- NCBI Gene ID: 25939
- 规格: 1×10^6 cells/ 冻存管
- 筛选标记: N/A
- 生长特性: 悬浮细胞
- 培养条件: 37℃,5% CO2 的培养箱,1/2 到 1/4 传代
- 倍增时间: ~24-36 hours
- 生长培养基: RPMI-1640+10% FBS+0.05mM β-mercaptoethanol+1% P,S
- 参考换液频率: 2-3 天换液
- 支原体检测结果: 阴性
- 敲除效率(Sanger测序): 100%
- 蛋白质组验证结果: 已完成蛋白水平验证
- 抗体货号: LMAb01101347
- 目标基因介绍: Protein that acts both as a host restriction factor involved in defense response to virus and as a regulator of DNA end resection at stalled replication forks (PubMed:19525956, PubMed:21613998, PubMed:21720370, PubMed:23602554, PubMed:23601106, PubMed:22056990, PubMed:24336198, PubMed:26294762, PubMed:26431200, PubMed:28229507, PubMed:28834754, PubMed:29670289). Has deoxynucleoside triphosphate (dNTPase) activity, which is required to restrict infection by viruses, such as HIV-1: dNTPase activity reduces cellular dNTP levels to levels too low for retroviral reverse transcription to occur, blocking early-stage virus replication in dendritic and other myeloid cells (PubMed:19525956, PubMed:21613998, PubMed:21720370, PubMed:23602554, PubMed:23601106, PubMed:23364794, PubMed:25038827, PubMed:26101257, PubMed:22056990, PubMed:24336198, PubMed:28229507, PubMed:26294762, PubMed:26431200). Likewise, suppresses LINE-1 retrotransposon activity (PubMed:24035396, PubMed:29610582, PubMed:24217394). Not able to restrict infection by HIV-2 virus; because restriction activity is counteracted by HIV-2 viral protein Vpx (PubMed:21613998, PubMed:21720370). In addition to virus restriction, dNTPase activity acts as a regulator of DNA precursor pools by regulating dNTP pools (PubMed:23858451). Phosphorylation at Thr-592 acts as a switch to control dNTPase-dependent and -independent functions: it inhibits dNTPase activity and ability to restrict infection by viruses, while it promotes DNA end resection at stalled replication forks (PubMed:23602554, PubMed:23601106, PubMed:29610582, PubMed:29670289). Functions during S phase at stalled DNA replication forks to promote the resection of gapped or reversed forks: acts by stimulating the exonuclease activity of MRE11, activating the ATR-CHK1 pathway and allowing the forks to restart replication (PubMed:29670289). Its ability to promote degradation of nascent DNA at stalled replication forks is required to prevent induction of type I interferons, thereby preventing chronic inflammation (PubMed:27477283, PubMed:29670289). Ability to promote DNA end resection at stalled replication forks is independent of dNTPase activity (PubMed:29670289). Enhances immunoglobulin hypermutation in B-lymphocytes by promoting transversion mutation (By similarity).
- 细胞开发路径: 采用CRISPR-RNP方法生成稳定KO Cell Pool;Sanger 测序结果显示KO Cell Pool敲除效率100%
- 应用: 高敲除效率的基因敲除细胞系(KO Cell Line),特别适用于初步功能分析、复杂疾病模型的开发、精准药物筛选以及广泛的基因发现研究。
关键词:- SAMHD1 MOP5
-
01. 在 37℃水浴中预热完全培养基。
02. 将冻存管在 37℃水浴中解冻 1-2 分钟。
03. 将冻存管转移到生物安全柜中,并用 70% 乙醇擦拭表面。
04. 拧开冻存管管盖,将细胞悬液轻轻转移到含有 9mL 完全培养基的无菌离心管中。
05. 在室温下以 125g 离心 5-7 分钟,弃上清。
06. 用 5mL 的完整培养基重悬细胞沉淀,将细胞悬液转移到 T25 培养瓶中。
07. 将细胞转移到 37℃,5% CO2 的培养箱中培养。
08. 参考传代比例:1/2 到 1/4 传代,2-3 天长满。 -
01. 待培养瓶中细胞汇合度至 80%-90% 以上,可进行细胞传代。
02. 将培养基、PBS、胰酶(0.25%Trypsin_EDTA Gibco 25200-056) 等从 4℃冰箱中拿出, 置于 37℃水浴中温度接近 37℃时取出并在瓶子表面喷洒 75% 酒精后置于生物安全柜中。03. 从培养箱中取出待传代的培养瓶,瓶身喷洒 75% 酒精后置于生物安全柜中。
04. 为避免冲散细胞,沿培养瓶上壁 PBS 润洗细胞,清洗细胞后弃去,T25 加 2mL。
05. 加入对应体积的胰酶(T75 加 1.5mL, T25 加 0.5mL) ,并轻轻晃动瓶身使胰酶平铺满细胞 底部。可根据实际情况适当增加或减少用量。约 1-2min 后大部分细胞脱落时,加入对应体积的完全培养基终止消化,并用 5mL 移液管轻轻吹打至细胞全部脱落。
06. 将细胞悬液转移至 15mL 离心管,悬液 300g 离心 5min,弃上清。
07. 移取 5mL 完全培养基重悬细胞,按需求调整接种比例,并补充培养瓶中完全培养基,T75 加至 13-15mL,T25 加至 5mL,加 1% 双抗。
08. 盖上瓶盖拧紧后轻轻晃动瓶身,使细胞混合均匀后置于 37℃,5% CO2 培养箱中。 -
01. 准备冻存液,并提前预冷。
02. 确保待冻存的细胞满足冻存要求,用显微镜检查以下状态:健康的外观及形态特征、所处生 长周期(对数晚期)、无污染或衰退迹象。
03. 对细胞进行消化及离心处理(具体步骤参考传代培养流程)
04. 按照每管 1mL 的量添加冻存液重悬细胞,吹打均匀后分装至冻存管。
05. 将细胞放在程序降温盒中,在 -80℃冰箱中冷冻。
06. 后续将细胞转移到液氮罐中,以便长期储存。 -
采用特异性单克隆抗体对野生型细胞和KO细胞的裂解液同时进行Western Blot(WB)检测,目标靶蛋白条带在WT细胞中显示,在KO细胞中消失或减弱。
产品类型: 基因敲除细胞系(Cell Line)
细胞系信息
Gene Symbol
SAMHD1 MOP5
NCBI Gene ID
25939
Ensembl ID
ENSG00000101347
Uniprot ID
Q9Y3Z3
筛选标记
N/A
宿主细胞 / 类型
THP-1/人单核细胞白血病
规格
1×10^6 cells/ 冻存管
生长培养基
RPMI-1640+10% FBS+0.05mM β-mercaptoethanol+1% P,S
生长特性
悬浮细胞
培养条件
37℃,5% CO2 的培养箱,1/2 到 1/4 传代
倍增时间
~24-36 hours
参考换液频率
2-3 天换液
支原体检测结果
阴性
敲除验证
敲除效率(Sanger测序)
100%
蛋白质组验证结果
已完成蛋白水平验证
抗体货号
LMAb01101347
抗体验证结果
采用特异性单克隆抗体对野生型细胞和KO细胞的裂解液同时进行Western Blot(WB)检测,目标靶蛋白条带在WT细胞中显示,在KO细胞中消失或减弱。
细胞系说明
目标基因介绍
Protein that acts both as a host restriction factor involved in defense response to virus and as a regulator of DNA end resection at stalled replication forks (PubMed:19525956, PubMed:21613998, PubMed:21720370, PubMed:23602554, PubMed:23601106, PubMed:22056990, PubMed:24336198, PubMed:26294762, PubMed:26431200, PubMed:28229507, PubMed:28834754, PubMed:29670289). Has deoxynucleoside triphosphate (dNTPase) activity, which is required to restrict infection by viruses, such as HIV-1: dNTPase activity reduces cellular dNTP levels to levels too low for retroviral reverse transcription to occur, blocking early-stage virus replication in dendritic and other myeloid cells (PubMed:19525956, PubMed:21613998, PubMed:21720370, PubMed:23602554, PubMed:23601106, PubMed:23364794, PubMed:25038827, PubMed:26101257, PubMed:22056990, PubMed:24336198, PubMed:28229507, PubMed:26294762, PubMed:26431200). Likewise, suppresses LINE-1 retrotransposon activity (PubMed:24035396, PubMed:29610582, PubMed:24217394). Not able to restrict infection by HIV-2 virus; because restriction activity is counteracted by HIV-2 viral protein Vpx (PubMed:21613998, PubMed:21720370). In addition to virus restriction, dNTPase activity acts as a regulator of DNA precursor pools by regulating dNTP pools (PubMed:23858451). Phosphorylation at Thr-592 acts as a switch to control dNTPase-dependent and -independent functions: it inhibits dNTPase activity and ability to restrict infection by viruses, while it promotes DNA end resection at stalled replication forks (PubMed:23602554, PubMed:23601106, PubMed:29610582, PubMed:29670289). Functions during S phase at stalled DNA replication forks to promote the resection of gapped or reversed forks: acts by stimulating the exonuclease activity of MRE11, activating the ATR-CHK1 pathway and allowing the forks to restart replication (PubMed:29670289). Its ability to promote degradation of nascent DNA at stalled replication forks is required to prevent induction of type I interferons, thereby preventing chronic inflammation (PubMed:27477283, PubMed:29670289). Ability to promote DNA end resection at stalled replication forks is independent of dNTPase activity (PubMed:29670289). Enhances immunoglobulin hypermutation in B-lymphocytes by promoting transversion mutation (By similarity).
细胞开发路径
采用CRISPR-RNP方法生成稳定KO Cell Pool;Sanger 测序结果显示KO Cell Pool敲除效率100%
应用
高敲除效率的基因敲除细胞系(KO Cell Line),特别适用于初步功能分析、复杂疾病模型的开发、精准药物筛选以及广泛的基因发现研究。
细胞培养说明
细胞复苏
01. 在 37℃水浴中预热完全培养基。
02. 将冻存管在 37℃水浴中解冻 1-2 分钟。
03. 将冻存管转移到生物安全柜中,并用 70% 乙醇擦拭表面。
04. 拧开冻存管管盖,将细胞悬液轻轻转移到含有 9mL 完全培养基的无菌离心管中。
05. 在室温下以 125g 离心 5-7 分钟,弃上清。
06. 用 5mL 的完整培养基重悬细胞沉淀,将细胞悬液转移到 T25 培养瓶中。
07. 将细胞转移到 37℃,5% CO2 的培养箱中培养。
08. 参考传代比例:1/2 到 1/4 传代,2-3 天长满。
细胞传代
01. 待培养瓶中细胞汇合度至 80%-90% 以上,可进行细胞传代。
02. 将培养基、PBS、胰酶(0.25%Trypsin_EDTA Gibco 25200-056) 等从 4℃冰箱中拿出, 置于 37℃水浴中温度接近 37℃时取出并在瓶子表面喷洒 75% 酒精后置于生物安全柜中。
03. 从培养箱中取出待传代的培养瓶,瓶身喷洒 75% 酒精后置于生物安全柜中。
04. 为避免冲散细胞,沿培养瓶上壁 PBS 润洗细胞,清洗细胞后弃去,T25 加 2mL。
05. 加入对应体积的胰酶(T75 加 1.5mL, T25 加 0.5mL) ,并轻轻晃动瓶身使胰酶平铺满细胞 底部。可根据实际情况适当增加或减少用量。约 1-2min 后大部分细胞脱落时,加入对应体积的完全培养基终止消化,并用 5mL 移液管轻轻吹打至细胞全部脱落。
06. 将细胞悬液转移至 15mL 离心管,悬液 300g 离心 5min,弃上清。
07. 移取 5mL 完全培养基重悬细胞,按需求调整接种比例,并补充培养瓶中完全培养基,T75 加至 13-15mL,T25 加至 5mL,加 1% 双抗。
08. 盖上瓶盖拧紧后轻轻晃动瓶身,使细胞混合均匀后置于 37℃,5% CO2 培养箱中。
细胞冻存
01. 准备冻存液,并提前预冷。
02. 确保待冻存的细胞满足冻存要求,用显微镜检查以下状态:健康的外观及形态特征、所处生 长周期(对数晚期)、无污染或衰退迹象。
03. 对细胞进行消化及离心处理(具体步骤参考传代培养流程)
04. 按照每管 1mL 的量添加冻存液重悬细胞,吹打均匀后分装至冻存管。
05. 将细胞放在程序降温盒中,在 -80℃冰箱中冷冻。
06. 后续将细胞转移到液氮罐中,以便长期储存。