PINT-87aa | whatman (沃特曼)

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PINT-87aa

PINT-87aa 是一种 87 个氨基酸的肽，由长的基因间非蛋白质编码 RNA p53 诱导的转录本 (LINC-PINT) 的环状形式编码。PINT-87aa 可直接与聚合酶相关因子复合物 (PAF1c) 相互作用并抑制多种癌基因的转录延伸。PINT-87aa 在体外和体内抑制胶质母细胞瘤细胞增殖。

PINT-87aa Chemical Structure

规格		是否有货
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生物活性

PINT-87aa, an 87-amino acid (aa) peptide, is encoded by the circular form of the long intergenic non-protein-coding RNA p53-induced transcript (LINC-PINT). PINT-87aa directly interacts with polymerase associated factor complex (PAF1c) and inhibits the transcriptional elongation of multiple oncogenes. PINT-87aa suppresses glioblastoma cell proliferation in vitro and in vivo^[1].

体外研究
(In Vitro)

Both 456 and 4121 cells overexpressing PINT-87aa exhibits G1 arrest and reduces cell proliferation without obvious cellular toxicity, whereas PINT-87aa K.O. SW1783 and Hs683 cells shows increased cell cycle and cell proliferation rates^[1].
The mRNA of PAF1 downstream genes (CPEB1, SOX-2, c-Myc, etc.) is inhibited transcriptionally in PIN87aa-overexpressing 456 and 4121 cells compared with that in control cells^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

456 and 4121 cells stably overexpressing PINT-87aa exhibits decreased in situ tumorigenic potential compared with control cells, as assessed by tumor growth and animal survival in mice^[1].
PINT-87aa K.O. cells results in significantly increased xenograft tumor volumes of nude mice^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

9607.03

Formula

C₃₉₆H₆₂8N₁₄₀O_{1₁₅S₁₃}

Sequence

Met-Leu-Trp-Leu-Pro-Asp-Arg-Gly-Ser-Cys-Ser-Ala-Arg-Ser-Pro-Ser-Gly-Met-Leu-Arg-Gly-Ala-Pro-Gly-Gly-Trp-Arg-Tyr-Gly-Arg-Arg-Cys-Gly-Arg-Arg-Arg-Gln-Ser-Cys-Cys-Cys-Cys-Cys-Cys-Cys-Ser-His-Val-Gly-Ala-Pro-Leu-Ser-Phe-His-Arg-Glu-Ala-Ser-Leu-Val-Ser-His-Asp-Gly-His-Asp-Ile-Met-Lys-Gln-His-Cys-Gly-Glu-Glu-Ser-Ile-Arg-Gly-Ala-His-Gly-Tyr-Lys-Asn-Lys

Sequence Shortening

MLWLPDRGSCSARSPSGMLRGAPGGWRYGRRCGRRRQSCCCCCCCSHVGAPLSFHREASLVSHDGHDIMKQHCGEESIRGAHGYKNK

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent & Solubility

In Vitro:

H₂O

Peptide Solubility and Storage Guidelines:

1. Calculate the length of the peptide.

2. Calculate the overall charge of the entire peptide according to the following table:

	Contents	Assign value
Acidic amino acid	Asp (D), Glu (E), and the C-terminal -COOH.	-1
Basic amino acid	Arg (R), Lys (K), His (H), and the N-terminal -NH₂	+1
Neutral amino acid	Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q)	0

3. Recommended solution:

Overall charge of peptide	Details
Negative (<0)	1. Try to dissolve the peptide in water first. 2. If water fails, add NH₄OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (>0)	1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0)	1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

参考文献

[1]. Zhang M, et, al. A peptide encoded by circular form of LINC-PINT suppresses oncogenic transcriptional elongation in glioblastoma. Nat Commun. 2018 Oct 26;9(1):4475.

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