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A study of non-reduced SDS-PAGE purity method of conbercept
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Chuan-fei YU1, Feng ZHANG1, Ai-bing LIU2, Ya-fei ZHANG2, Zu-xiu LUO2, Su CHEN2, Xiao KE2, Lan WANG1, *
Acta Pharmaceutica Sinica | 2018, 53(12) : 2099 - 2103
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Acta Pharmaceutica Sinica | 2018, 53(12): 2099-2103
ORIGINAL ARTICLES Pharmaceutical Analysis
A study of non-reduced SDS-PAGE purity method of conbercept
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Chuan-fei YU1, Feng ZHANG1, Ai-bing LIU2, Ya-fei ZHANG2, Zu-xiu LUO2, Su CHEN2, Xiao KE2, Lan WANG1, *
Affiliations
  • 1. National Institutes for Food and Drug Control, Beijing 100050, China
  • 2. Chengdu Kanghong Pharmaceutical Group, Chengdu 610000, China
Published: 2018-12-12 doi: 10.16438/j.0513-4870.2018-0555
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A non-reduced SDS-PAGE purity method for quantitation of conbercept fragments was established based on gel screening, comparison of gel imaging system, linearity range of main band, screening of destaining conditions. The results indicated that the bands could be separated effectively with good clearness and flatness on 4%-15% gradient concentration gel, the peaks of all bands could be separated from baseline using high-distinguishability gel imaging system, the signal intensity of a main band had shown a good linearity with ≤ 3 μg of loading amount, and that the destaining was set as a total of ≤ 3 h with exchanging 100 mL destaining buffer every 60 min. The established non-reduced SDS-PAGE method could demonstrate the purity of conbercept more objectively. After validation, the established non-reduced SDS-PAGE method was submitted to FDA in the form of supplementary materials, which laid a quality basis for the direct entry of conbercept to the clinical Ⅲ study in the United States.

non-reduced SDS-PAGE  /  linearity  /  loading amount
Chuan-fei YU, Feng ZHANG, Ai-bing LIU, Ya-fei ZHANG, Zu-xiu LUO, Su CHEN, Xiao KE, Lan WANG. A study of non-reduced SDS-PAGE purity method of conbercept[J]. Acta Pharmaceutica Sinica, 2018 , 53 (12) : 2099 -2103 . DOI: 10.16438/j.0513-4870.2018-0555
Year 2018 volume 53 Issue 12
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Article Info
doi: 10.16438/j.0513-4870.2018-0555
  • Receive Date:2018-06-13
  • Online Date:2026-01-15
  • Published:2018-12-12
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  • Received:2018-06-13
  • Revised:2018-07-30
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    1. National Institutes for Food and Drug Control, Beijing 100050, China
    2. Chengdu Kanghong Pharmaceutical Group, Chengdu 610000, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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