Recombinant Human PIBF protein (His tag)
Price:
- 表达系统: E.coli
- 蛋白编码: Q8WXW3
别称 |
C13orf24;KIAA1008;PIBF 1;PIBF;PIBF1;PIBF1;Progesterone immunomodulatory binding factor 1;Progesterone induced blocking factor 1
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表达系统 |
E.coli
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序列 |
Asn 13-Val 203
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蛋白编码 |
Q8WXW3
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种属 |
Human
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计算分子量 |
20.9 kDa
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表观分子量 |
28 kDa
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标签 |
N-His
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纯度 |
> 95 % as determined by reducing SDS-PAGE.
|
内毒素 |
Please contact us for more information.
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保存条件 |
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
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运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
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制剂 |
Lyophilized from sterile PBS, pH 7.4.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
复溶方法 |
Please refer to the printed manual for detailed information.
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背景 |
PIBF-1 (Progesterone induced blocking factor 1) is a 90-92 kDa progesterone-inducible molecule initially isolated from the lymphocytes of pregnant women. It is produced by lymphocytes plus villous trophoblast cells, and modulates the activity of cytotoxic NK cells. Human PIBF-1 is 757 amino acids (aa) in length. It contains a possible signal sequence (aa 1-26), two Leu-zippers (aa 311-323 and 643-664), two NLSs (aa 282-285 and 567-573), a bZIP sequence (aa 574-614), and an ER retention motif (aa 752-757). PIBF-1 is found in the nucleus, cytoplasm, and circulation, the result of multiple splice variants. SDS-page shows 90 kDa, 80-83 kDa, 48-52 kDa, 34-35 kDa, and 10-12 kDa isoforms. The 90 kDa form is nuclear and full-length, while the 34-35 kDa form is secreted and likely represents aa 1-223 spliced to aa 683-757. There is a 50-55 kDa form that is apparently intracellular, possibly bioactive and likely represents the N-terminus of the molecule. Over aa 19?419, human PIBF-1 shares 88% aa identity with mouse PIBF-1.
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实验操作视频
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