GSDMD (N-terminal) 抗体 (YA5502) (HY-P85810)

Gsdmdc1, Gsdmd, Gasdermin-D, Gasdermin domain-containing protein 1

反应种属:Human, Mouse, Rat
抗原名称:GSDMD
应用:WB, ELISA, IF/ICC
标记:Unconjugated

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经验证应用

项目详情
WBWestern blot analysis of extracts from PC-3 (lane 2(20μg), NIH/3T3 (lane 3(20μg), THP-1 (lane 4(20μg), Jurkat (lane 5(20μg) using GSDMD Antibody. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/3000) was used in 5% BSA in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (HY-P8004/HY-P8001, 1/10,000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1 (lane 2, 20ug), THP-1 treated with 25ng/ml TPA for 24 hours, then treated with 5ng/ml LPS for 3 hours and add 1ug/ml BFA for another 3 hours (lane3, 20μg) and THP-1 treated with 50ng/ml TPA for 24 hours, then treated with 5ng/ml LPS for 3 hours and add 1ug/ml BFA for another 3 hours (lane4, 20μg) using GSDMD (N-terminal) Antibody ( HY-P85810 ). Proteins were transferred to a PVDF membrane and blocked with 5% BSA in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80993, 1/10,000) was used in 5% BSA in TBST at 4°C overnight. Goat Anti-Mouse IgG-HRP Secondary Antibody (HY-P8004,1/10,000) was used for 1 hour at room temperature.
ICCImmunocytochemistry analysis of Hela cells labeling GSDMD (N-terminal) with GSDMD (N-terminal) Antibody ( HY-P85810 ) at 1/100 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with GSDMD (N-terminal) Antibody ( HY-P85810 ) at 1/100 dilution in quick block buffer overnight at 4 ℃.AF488-conjugated Goat Anti-Mouse IgG H&L (HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue). Immunocytochemistry analysis of Hela cells labeling GSDMD (N-terminal) with GSDMD (N-terminal) Antibody ( HY-P85810 ) at 1/300 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with GSDMD (N-terminal) Antibody ( HY-P85810 ) at 1/300 dilution in quick block buffer overnight at 4 ℃.AF488-conjugated Goat Anti-Mouse IgG H&L (HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

详细信息

免疫原AA range: 1-100
宿主/亚型Mouse / IgG
抗体类型Monoclonal
产品形式溶液
偶联物Non-conjugated
纯化方式affinity chromatography.
浓度不同批次浓度可能有所不同,具体浓度请参见对应批次的COA。 批次浓度查询
储存缓冲液Supplied in PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA
储存条件保存条件 & 期限: Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles. 运输条件: Shipping with blue ice.
RRIDAB_3719050
UniProt IDP57764
Gene ID79792 [ NCBI ]

背景信息

功能: GSDMD 是一种成孔蛋白前体,在宿主抵御病原体感染和危险信号的过程中发挥关键作用。该蛋白是成孔蛋白的前体:经切割后,释放的 N 端结构域 (Gasdermin-D N 端) 会结合细胞膜并形成孔道,引发焦亡;它可响应微生物感染和危险信号,促进焦亡发生。当细胞响应经典以及非经典 (如胞质 LPS) 炎症小体激活剂时,炎性半胱天冬酶 CASP1、CASP4 或 CASP5 会切割 Gasdermin-D,生成该活性结构域。切割后,该结构域会转移到质膜,与膜内侧的脂质强结合,包括单磷酸化磷脂酰肌醇 (如磷脂酰肌醇 4-磷酸)、双磷酸化磷脂酰肌醇 (如磷脂酰肌醇 (4,5)-二磷酸、磷脂酰肌醇 (3,4,5)-三磷酸),与磷脂酸和磷脂酰丝氨酸的结合力较弱。它会在膜内同源寡聚化,形成内径 10-15 纳米 (nm) 的孔道,使成熟的白细胞介素-1 (IL1B 和 IL18) 释放,触发焦亡。Gasdermin 孔道还可使成熟的半胱天冬酶-7 (CASP7) 释放 (依据同源性推测)。在部分 (而非全部) 细胞类型中,焦亡发生后会出现焦亡性细胞死亡,这是由下游 ninjurin-1 (NINJ1) 激活介导的,NINJ1 可介导膜破裂 (细胞溶解)。它还会在线粒体外膜形成孔道,导致线粒体 DNA (mtDNA) 释放到胞质中 (依据同源性推测)。从焦亡细胞释放到胞外环境的 Gasdermin-D N 端可快速结合并杀死革兰氏阴性菌和革兰氏阳性菌,且不会损伤邻近的哺乳动物细胞,因为其脂质结合特异性使其不会从外侧破坏质膜。在细胞培养条件下,它对李斯特菌等胞内菌也有活性 (依据同源性推测)。它还可响应耶尔森菌毒素 YopJ 对 MAP3K7/TAK1 的灭活作用,此时 CASP8 会切割 GSDMD 使其激活 (依据同源性推测)。它是黏膜组织抵御肠道病原体的必要组分 (依据同源性推测)。脑内皮细胞中非经典炎症小体的激活会导致过度焦亡,造成血脑屏障破坏 (依据同源性推测)。它可与细菌和线粒体脂质 (包括心磷脂) 强结合,不结合未磷酸化的磷脂酰肌醇、磷脂酰乙醇胺和磷脂酰胆碱;响应膳食抗原时,小肠上段中的 CASP3 或 CASP7 会切割 GSDMD 生成转录共激活因子 (依据同源性推测)。该结构域是维持小肠食物耐受的必要成分:它会转位进入细胞核,作为 STAT1 的共激活因子,诱导 CIITA 和 MHC II 类分子的转录,进而诱导小肠上段的 1 型调节性 T (Tr1) 细胞生成 (依据同源性推测);木瓜蛋白酶过敏原可切割 GSDMD 生成该结构域。切割后,它会转移到质膜,在膜内同源寡聚化,形成内径 10-15 纳米 (nm) 的孔道,使成熟的白细胞介素-33 (IL33) 特异性释放,促进 2 型炎症免疫应答 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] 。 亚细胞定位: 细胞质、胞质溶胶;炎症小体;细胞膜;多通道膜蛋白;分泌型;线粒体膜;细胞质、胞质溶胶;细胞核;细胞质、胞质溶胶 表达水平: 组织特异性:该基因在食管基底上层细胞以及胃峡部/颈部、胃小凹和胃腺中表达,提示其在分化细胞中优先表达。 亚基: 同源寡聚体;插入膜中时含有 27-28 个亚基的同源寡聚环状孔复合物 (PubMed:33883744, PubMed:34289345, PubMed:38040708)。