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Key Documents

P7280

Sigma-Aldrich

Poly-ᴅ-Lysine Hydrobromide

synthetic, mol wt 30,000-70,000, powder, γ-irradiated, suitable for cell culture, BioXtra

同義詞:

PDL

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About This Item

線性公式:
D-Lys-(D-Lys)n-D-Lys · xHBr
CAS號碼:
MDL號碼:
分類程式碼代碼:
12352202
PubChem物質ID:
NACRES:
NA.75

product name

聚-D-赖氨酸 氢溴酸盐, average mol wt 30,000-70,000, lyophilized powder, γ-irradiated, BioReagent, suitable for cell culture

生物源

synthetic (organic)

品質等級

無菌

γ-irradiated

產品線

BioReagent
BioXtra

形狀

lyophilized powder

分子量

average mol wt 30,000-70,000

包裝

pkg of 5 X 5 mg
pkg of 5 mg

濃度

0.016—0.032 mmol lysine

技術

cell culture | mammalian: suitable

表面覆盖率

4 μg/cm2

溶解度

H2O: soluble 50 mg/mL, clear, colorless

運輸包裝

ambient

儲存溫度

−20°C

SMILES 字串

O=C(C)[C@@](NC)([H])CCCCN.[Br]

InChI

1S/C6H14N2O2.BrH/c7-4-2-1-3-5(8)6(9)10;/h5H,1-4,7-8H2,(H,9,10);1H

InChI 密鑰

MEXAGTSTSPYCEP-UHFFFAOYSA-N

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一般說明

多聚-D-赖氨酸氢溴酸盐(PDL)是一种由赖氨酸组成的带正电的聚合物,其中的每个赖氨酸单元结合一个氢溴酸分子。这种氢溴酸分子赋予多聚-D-赖氨酸独特的特性,令其形成晶体并易溶于水基溶液。

應用

多聚-D-赖氨酸氢溴酸盐涂层已用于:
  • 在原代神经元培养物的免疫荧光显微镜检查中,包被组织培养板孔和盖玻片,‘以研究与寨卡病毒感染有关的神经功能失调。
  • 包被盖玻片以增强大鼠肠道分离的肠肌层细胞的附着和增殖。
  • 处理载玻片的表面以实现细胞附着,以研究大鼠小肠的肠肌层丛(myenteric plexus )。
聚-D-赖氨酸聚合物可用于制备细胞附着的表面。D-赖氨酸聚合物也可用于消化聚-L-赖氨酸聚合物并导致L-赖氨酸过量摄取的细胞。

建议使用0.5 - 1.0 mL的该产品0.1 mg/mL溶液用作细胞培养的基质对25 cm2进行涂覆。 较低分子量的该产品粘度相对较低,但较高分子量的形式则可提供每分子更多的附着位点。

生化/生理作用

多聚-L-赖氨酸(PDL)氢溴酸盐是细胞的非特异性粘附因子,它通过增强细胞膜表面的负电荷离子与培养表面之间的静电相互作用,促进细胞与固相基质的粘附。 当被细胞培养表面吸收后,聚-D-赖氨酸可增加带正电的细胞结合位点数量。

特點和優勢

通过γ-辐射灭菌。

成分

聚-D-赖氨酸是一种带正电的氨基酸聚合物,其中每个赖氨酸残基约有一个HBr。 氢溴酸盐可使聚-D-赖氨酸呈可溶于水的结晶形式。 在β结构中可能会发现少量的产物,因为HBr干扰氨基与羧基或含N或O部分之间的氢键。

注意

无菌溶液可在2-8℃条件下稳定保存2年。脱水保存在-20°C条件下。

準備報告

本品分子量在30000-70000之间,经过细胞培养试验和射线辐照。为了除去 HBr,将该产物溶解在中性缓冲液中,并透析除去盐。 通常,要将此产品用作附着因子,将50mL无菌组织培养级水加到5 mg聚赖氨酸中,并在每25cm2溶液中使用1mL该溶液无菌包被表面。 5分钟后,吸去溶液,并彻底冲洗表面。 在加入细胞和培养基之前让其干燥两小时。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。

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Valentina Cigliola et al.
PloS one, 11(3), e0150880-e0150880 (2016-03-10)
Signalling through gap junctions contributes to control insulin secretion and, thus, blood glucose levels. Gap junctions of the insulin-producing β-cells are made of connexin 36 (Cx36), which is encoded by the GJD2 gene. Cx36-null mice feature alterations mimicking those observed
Li Wang et al.
Neuroscience letters, 661, 63-70 (2017-10-02)
The abnormal expression of the autophagy-related protein Beclin 1 has been implicated in Alzheimer's disease (AD) brains, whereas the precise involvement of Caspase-mediated Beclin 1 cleavage in AD neurons has not yet been fully clarified. In this study, we investigated
Nadine Dupuis et al.
Molecular pharmacology, 91(6), 595-608 (2017-03-21)
G protein-coupled receptors are the most important drug targets for human diseases. An important number of them remain devoid of confirmed ligands. GPR27 is one of these orphan receptors, characterized by a high level of conservation among vertebrates and a
Diana Fernández-Suárez et al.
Cell death & disease, 10(10), 732-732 (2019-10-02)
MAG (Myelin-associated glycoprotein) is a type I transmembrane glycoprotein expressed by Schwann cells and oligodendrocytes, that has been implicated in the control of axonal growth in many neuronal populations including cerebellar granule neurons (CGNs). However, it is unclear whether MAG
Bhavana Muralidharan et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 37(46), 11245-11254 (2017-10-14)
Regulation of the neuron-glia cell-fate switch is a critical step in the development of the CNS. Previously, we demonstrated that Lhx2 is a necessary and sufficient regulator of this process in the mouse hippocampal primordium, such that Lhx2 overexpression promotes

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