FOLR4/Juno Protein, Human, Recombinant (His)

产品编号 TMPK-00585

Izumo1 is the only essential sperm-egg fusion protein currently known on mammalian sperm, and its egg receptor (Juno; formerly Folr4) was recently discovered. Male knockout mice for Izumo1 and female knockout mice for Juno are both healthy but sterile. Here, both sperm-egg binding proteins are shown to be evolving under positive selection. Juno's presence in mammals alone, suggesting a recent mammalian-specific duplication and neofunctionalization of the ancestral folate receptor. FOLR4/Juno Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 25 kDa and the accession number is A6ND01-1.

FOLR4/Juno Protein, Human, Recombinant (His)

产品编号 TMPK-00585

规格	价格	库存
100 μg	¥ 3,250	5日内发货
500 μg	¥ 13,000	5日内发货
1 mg	¥ 21,700	5日内发货

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常见问题解答

问抑制剂加 DMSO 配成母液之后，能否放在常温的环境保存1周？

答不建议这么做，母液配置好分装保存，建议存于 -20℃ 或 -80℃，尽量避免反复冻融。如果您订购的规格很大，可以考虑分装粉末保存，固体粉末是比较稳定的，-20℃ 可以保存三年。

问抑制剂是否需要灭菌？

答如果您使用 DMSO 配制：不建议灭菌，DMSO 本身具有极强的杀菌力，配制好的溶液就是无菌溶液。如果您确实担心的，可以放置 4℃ 冰箱过夜放置即可；依然有顾虑的话，需用有机系专用滤膜过滤。如果您使用水配制：可以用 0.22 μm 滤膜过滤灭菌。

问是否能直接用缓冲液对抑制剂 DMSO 母液做梯度稀释？

答大部分情况下，都是可以溶解的。但有时，有机试剂直接加入水相介质时会析出。建议将抑制剂先以DMSO做梯度稀释，再将经过稀释的抑制剂加入缓冲液或细胞培养基。有些抑制剂甚至只有在其工作浓度下才能溶于水相。比如细胞实验中希望终浓度为 1 μM 的话，可以把 10 mM 的 DMSO 母液用 DMSO 稀释到 1 mM，再吸 2 μL 加入到 2 mL 的生理盐水/PBS/细胞培液，终浓度即为 1 μM。为避免药物析出，稀释前，可将母液和培养基 37℃ 预热，避免温度低造成严重析出。若稀释过程中出现化合物析出的情况，建议您采用超声加热的方法使其复溶。

问抑制剂母液的储存方式？

答母液配置完成后，一般储存于 -80℃，可以存 1 年以上。建议多分装几管，避免反复冻融，常用的存于 4 度，可放一周以上。

问母液配置的计算方法？

答（1） c=n/v=m/M/v 浓度=物质的量/体积=质量/相对分子质量/体积（2）官网产品详情页下方有溶液配制表格，可以参考计算好的加入溶剂体积

产品信息

生物活性	Activity has not been tested. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first.
产品描述	Izumo1 is the only essential sperm-egg fusion protein currently known on mammalian sperm, and its egg receptor (Juno; formerly Folr4) was recently discovered. Male knockout mice for Izumo1 and female knockout mice for Juno are both healthy but sterile. Here, both sperm-egg binding proteins are shown to be evolving under positive selection. Juno's presence in mammals alone, suggesting a recent mammalian-specific duplication and neofunctionalization of the ancestral folate receptor. FOLR4/Juno Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 25 kDa and the accession number is A6ND01-1.
种属	Human
表达系统	HEK293 Cells
标签	C-His
蛋白编号	A6ND01-1
别名	Juno,Izumo1r,FR-δ,FR-delta,FR δ,FR delta,FOLR4, LOC390243,Folbp3,Folate receptor 4
蛋白构建	Gly20-Ser228
蛋白纯度	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
分子量	25 kDa (predicted). Due to glycosylation, the protein migrates to 30-35 kDa based on Tris-Bis PAGE result.
内毒素	< 1 EU/μg by the LAL method.
缓冲液	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization.
复溶方法	Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
存储	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式	In general, Lyophilized powders are shipping with blue ice.
研究背景	Izumo1 is the only essential sperm-egg fusion protein currently known on mammalian sperm, and its egg receptor (Juno; formerly Folr4) was recently discovered. Male knockout mice for Izumo1 and female knockout mice for Juno are both healthy but sterile. Here, both sperm-egg binding proteins are shown to be evolving under positive selection. Juno's presence in mammals alone, suggesting a recent mammalian-specific duplication and neofunctionalization of the ancestral folate receptor.

FOLR4/Juno Protein, Human, Recombinant (His)

FOLR4/Juno Protein, Human, Recombinant (His)

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