CN114591407A - 耐碱蛋白a变体及其应用 - Google Patents
耐碱蛋白a变体及其应用 Download PDFInfo
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- CN114591407A CN114591407A CN202111572524.4A CN202111572524A CN114591407A CN 114591407 A CN114591407 A CN 114591407A CN 202111572524 A CN202111572524 A CN 202111572524A CN 114591407 A CN114591407 A CN 114591407A
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- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
- C07K14/305—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Micrococcaceae (F)
- C07K14/31—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Micrococcaceae (F) from Staphylococcus (G)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36
- B01D15/3804—Affinity chromatography
- B01D15/3809—Affinity chromatography of the antigen-antibody type, e.g. protein A, G, L chromatography
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- G—PHYSICS
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- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6854—Immunoglobulins
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
- C07K2319/30—Non-immunoglobulin-derived peptide or protein having an immunoglobulin constant or Fc region, or a fragment thereof, attached thereto
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Chemical Kinetics & Catalysis (AREA)
- Peptides Or Proteins (AREA)
Abstract
Description
蛋白A变体编号 | Kon(1/Ms) | Koff(1/s) | KD(M) |
Z | 1.4E5 | 3.6E-3 | 2.6E-8 |
T_SEQAA-1 | 1E5 | 2.2E-3 | 2.2E-8 |
T_SEQAA-2 | 1.3E4 | 1.1E-2 | 8.4E-7 |
T_SEQAA-3 | 1.2E5 | 1.3E-3 | 1.1E-8 |
T_SEQAA-4 | ND | ND | N/A |
T_SEQAA-5 | 1.8E4 | 3.3E-2 | 1.8E-6 |
T_SEQAA-6 | 1.2E4 | 5.6E-3 | 2.1E-7 |
T_SEQAA-7 | 3.8E3 | 6.6E-4 | 1.7E-7 |
T_SEQAA-8 | 9.5E3 | 1.5E-3 | 1.6E-7 |
T_SEQAA-9 | 8E2 | 2.8E-4 | 3.5E-7 |
T_SEQAA-10 | 2.1E5 | 4E-3 | 1.9E-8 |
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CN202310688624.6A CN116679071A (zh) | 2021-12-21 | 2021-12-21 | 免疫检测方法 |
CN202111572524.4A CN114591407B (zh) | 2021-12-21 | 2021-12-21 | 耐碱蛋白a变体及其应用 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101910194A (zh) * | 2007-11-12 | 2010-12-08 | 诺维信公司 | 供纯化用的双亲和性多肽 |
CN104059133A (zh) * | 2013-03-18 | 2014-09-24 | 南京金斯瑞生物科技有限公司 | 一类突变的具有高耐碱特性的蛋白a及其应用 |
CN109476712A (zh) * | 2016-08-11 | 2019-03-15 | 纳维格蛋白质有限公司 | 新型对碱稳定的免疫球蛋白结合蛋白 |
CN110177617A (zh) * | 2017-01-04 | 2019-08-27 | 南京金斯瑞生物科技有限公司 | 高载量耐碱蛋白a磁珠及其使用方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101910194A (zh) * | 2007-11-12 | 2010-12-08 | 诺维信公司 | 供纯化用的双亲和性多肽 |
CN104059133A (zh) * | 2013-03-18 | 2014-09-24 | 南京金斯瑞生物科技有限公司 | 一类突变的具有高耐碱特性的蛋白a及其应用 |
CN109476712A (zh) * | 2016-08-11 | 2019-03-15 | 纳维格蛋白质有限公司 | 新型对碱稳定的免疫球蛋白结合蛋白 |
CN110177617A (zh) * | 2017-01-04 | 2019-08-27 | 南京金斯瑞生物科技有限公司 | 高载量耐碱蛋白a磁珠及其使用方法 |
US20190329218A1 (en) * | 2017-01-04 | 2019-10-31 | Nanjingjinsirui Science & Technology Biology Corp. | High-loading and alkali-resistant protein a magnetic bead and method of use thereof |
Non-Patent Citations (1)
Title |
---|
WAHLBERG E.,ET AL.: "ACCESSION NO:1H0T_A,Chain A, IMMUNOGLOBULIN G BINDING PROTEIN A", GENBANK DATABASE * |
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