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MSQC4

SILu™Lite SigmaMAb 通用抗体标准品 人

别名:

IgG1 光, 人 SILu™Lite SigmaMAb 通用抗体标准品, SigmaMAb

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关于此项目

NACRES:
NA.12
UNSPSC Code:
23201100
Clone:
-
Species reactivity:
-
Application:
—
Citations:
6
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recombinant

expressed in CHO cells

Quality Level

200

shipped in

wet ice

storage temp.

−20°C

General description

SILU™ Lite SigmaMAb 是一种重组人单克隆 IgG1λ 轻抗体，在 CHO 细胞中表达的分子量约为 150 kDa。其旨在优化单克隆抗体、生物仿制药和药品的准确完整质量分析。对这种大型生物分子进行准确的完整质量分析可以提供有关结构和翻译后修饰（如糖基化）的全面信息。其他信息如异质性、批间变异、氨基酸截断以及 N-末端 Lys 加工、聚集和降解等均可确定。在治疗性单克隆抗体药物开发中，使用质谱法进行完整质量分析对于配制和储存也非常重要。
该产品由两条相同的重链和两条相同的轻链组成。重链和轻链通过一个二硫键连接。重链通过位于铰链区的两个二硫键连接。其他 12 个半胱氨酸键在分子内仅限于 6 个不同的球状结构域。采用 4 种不同的酶：糜蛋白酶、Asp-N 和 Glu-C 内切蛋白酶和胰蛋白酶，通过完整质量和肽图谱分析评价抗体序列。获得了 100% 的序列覆盖率。

Application

以 SILu™ Lite SigmaMAb 通用抗体标准人为模型系统，研究气相单克隆抗体 (mAb) 解折叠与 mAb 糖基化离散水平之间的定量关系。

Features and Benefits

SigmaMAb 轻链、重链和完整蛋白（糖型丰度最高）的分子量计算值如下：

描述/组成/更改/平均质量 (Da)

还原轻链/C1006H1555N267O333S7 / 焦谷氨酸 (Q) / 22942.2

还原重链/C2181H3393N587O663S16 / （无更改）/ 48957.8
C2237H3485N591O702S16 / G0F / 50403.2
C2243H3495N591O707S16 / G1F / 50565.3
C2249H3505N591O712S16 / G2F / 50727.5

天然完整质量，非还原型 / C6374H9864N1708O1992S46 / 2 X 焦谷氨酸 (Q) / 143767.7
C6486H10048N1716O2070S46 / G0F+G0F / 146658.4
C6492H10058N1716O2075S46 / G0F+G1F / 146820.6
C6498H10068N1716O2080S46 / G1F+G1F / 146982.7
C6504H10078N1716O2085S46 / G1F+G2F / 147144.8
C6510H10088N1716O2090S46 / G2F+G2F / 147307.0

Physical form

以含有磷酸盐缓冲盐水的冻干粉形式提供

Preparation Note

当使用磷酸盐缓冲液 (pH 值为 6-7) 复溶冻干品时，SigmaMAb 回收率最大。

Analysis Note

SigmaMab 重链
EVQLVESGGGLVQPGGSLRLSCVASGFTLNNYDMHWVRQGIGKGLEWVSKI
GTAGDRYYAGSVKGRFTISRENAKDSLYLQMNSLRVGDAAVYYCARGAGRW
APLGAFDIWGQGTMVTVSS|ASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYF
PEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVN
HKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISR
TPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV
VSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPS
RDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFL
YSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG

SigmaMab 轻链
QSALTQPRSVSGSPGQSVTISCTGTSSDIGGYNFVSWYQQHPGKAPKLMIY
DATKRPSGVPDRFSGSKSGNTASLTISGLQAEDEADYYCCSYAGDYTPGV
VFGGGTKLTVL|GQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTV
AWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQ
VTHEGSTVEKTVAPTECS
也可作为稳定同位素标记产品，Silu ™Mab（产品编号 MSQC3）
根据 A280 测定的蛋白含量确定包装规格

Other Notes

避免使用 PBS 进行复溶。
通过加入 500 μL 超纯水或磷酸盐缓冲液复溶小瓶内容物，并剧烈混匀。溶解后的产物可根据需要进一步稀释。

Legal Information

SILu is a trademark of Sigma-Aldrich Co. LLC

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

常规特殊物品

此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SLCH4932
SLCF7124
SLCD9252
SLCD1780
SLCB6914

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实验方案

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SEC-MS protocol for rapid glycoprofiling of monoclonal antibodies with antibody purification and mass spectrometer calibration.

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商品

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Rapid Glycan Prep & Analysis by LC-MS Workflow

PNGase Fast denaturing buffer and enzyme provide results similar to a conventional 20-hour protocol, reducing workflow time to about 1 hour.

Middle-Up Antibody Analysis by RP Chromatography

Compare columns in resolving medium-sized antibody fragments after digestion with DTT or IdeS using Reversed-Phase Chromatography for analysis.

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"Collision Induced Unfolding Detects Subtle Differences in Intact Antibody Glycoforms and Associated Fragments.
Tian Y and Brandon T R
International Journal of Mass Spectrometry (2017)
Yutong Jin et al.
mAbs, 11(1), 106-115 (2018-09-20)
The pharmaceutical industry's interest in monoclonal antibodies (mAbs) and their derivatives has spurred rapid growth in the commercial and clinical pipeline of these effective therapeutics. The complex micro-heterogeneity of mAbs requires in-depth structural characterization for critical quality attribute assessment and
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全球贸易项目编号

货号GTIN
MSQC4-100MG04061832012582
MSQC4-1MG04061835574414