HOME> Products> Molecular Biology> Enzyme / Enzyme Inhibitor> DNA Homologous Recombination & Repair Proteins
High-Purity Recombinant Proteins for DNA Replication, Recombination, and Repair Research DNA Homologous Recombination & Repair Proteins
Date：July 08 2026Web Page No：160226
Explore our high-quality recombinant proteins for DNA repair and recombination research. Featuring key factors from both E. coli and mammalian systems (including RecA, Rad51, Rad52, and DNA Polymerases), our products are optimized for high purity and proven functional activity to support your next breakthrough.
Features
E. coli Proteins
LexA Repressor
LexA is a repressor protein that recognizes and binds to SOS-box sequences. It suppresses the transcription of genes within the SOS regulon involved in DNA repair and cell division regulation.
RecQ DNA Helicase
RecQ DNA helicase functions during both the early and late stages of homologous recombination. It unwinds DNA structures with specific conformations, such as telomeres and G-quadruplex (G4) DNA.
RuvA / RuvB
RuvA and RuvB form a complex during the late stages of homologous recombination and recombinational repair. This complex specifically binds to the Holliday junction (a recombination intermediate) and promotes branch migration to expand the heteroduplex region.
RuvC
RuvC is a structure-specific endonuclease that acts during the late stages of homologous recombination and recombinational repair. It specifically binds to the Holliday junction, introduces symmetrical nicks at the crossover point, and resolves the junction to release the recombinant DNA molecules.
DNA Photolyase
DNA photolyase is a repair enzyme that monomerizes cyclobutane pyrimidine dimers (CPDs) formed by UV damage. It binds specifically to damaged DNA and catalyzes light-dependent repair using blue light as an energy source.
Mammalian Proteins (Expressed in E. coli)
Rad51 (Human)
Human Rad51 is a functional homolog of E. coli RecA that plays a central role in genetic recombination and repair. It interacts with various proteins, including Rad52 and tumor suppressors like BRCA1 and BRCA2, to maintain genome stability.
Rad52 (Human)
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
DNA Polymerase β (Rat)
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
LexA is a repressor protein that recognizes and binds to SOS-box sequences. It suppresses the transcription of genes within the SOS regulon involved in DNA repair and cell division regulation.
RecQ DNA Helicase
RecQ DNA helicase functions during both the early and late stages of homologous recombination. It unwinds DNA structures with specific conformations, such as telomeres and G-quadruplex (G4) DNA.
RuvA / RuvB
RuvA and RuvB form a complex during the late stages of homologous recombination and recombinational repair. This complex specifically binds to the Holliday junction (a recombination intermediate) and promotes branch migration to expand the heteroduplex region.
RuvC
RuvC is a structure-specific endonuclease that acts during the late stages of homologous recombination and recombinational repair. It specifically binds to the Holliday junction, introduces symmetrical nicks at the crossover point, and resolves the junction to release the recombinant DNA molecules.
DNA Photolyase
DNA photolyase is a repair enzyme that monomerizes cyclobutane pyrimidine dimers (CPDs) formed by UV damage. It binds specifically to damaged DNA and catalyzes light-dependent repair using blue light as an energy source.
Mammalian Proteins (Expressed in E. coli)
Rad51 (Human)
Human Rad51 is a functional homolog of E. coli RecA that plays a central role in genetic recombination and repair. It interacts with various proteins, including Rad52 and tumor suppressors like BRCA1 and BRCA2, to maintain genome stability.
Rad52 (Human)
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
DNA Polymerase β (Rat)
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
RecQ DNA helicase functions during both the early and late stages of homologous recombination. It unwinds DNA structures with specific conformations, such as telomeres and G-quadruplex (G4) DNA.
RuvA and RuvB form a complex during the late stages of homologous recombination and recombinational repair. This complex specifically binds to the Holliday junction (a recombination intermediate) and promotes branch migration to expand the heteroduplex region.
RuvC
RuvC is a structure-specific endonuclease that acts during the late stages of homologous recombination and recombinational repair. It specifically binds to the Holliday junction, introduces symmetrical nicks at the crossover point, and resolves the junction to release the recombinant DNA molecules.
DNA Photolyase
DNA photolyase is a repair enzyme that monomerizes cyclobutane pyrimidine dimers (CPDs) formed by UV damage. It binds specifically to damaged DNA and catalyzes light-dependent repair using blue light as an energy source.
Mammalian Proteins (Expressed in E. coli)
Rad51 (Human)
Human Rad51 is a functional homolog of E. coli RecA that plays a central role in genetic recombination and repair. It interacts with various proteins, including Rad52 and tumor suppressors like BRCA1 and BRCA2, to maintain genome stability.
Rad52 (Human)
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
DNA Polymerase β (Rat)
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
RuvC is a structure-specific endonuclease that acts during the late stages of homologous recombination and recombinational repair. It specifically binds to the Holliday junction, introduces symmetrical nicks at the crossover point, and resolves the junction to release the recombinant DNA molecules.
DNA photolyase is a repair enzyme that monomerizes cyclobutane pyrimidine dimers (CPDs) formed by UV damage. It binds specifically to damaged DNA and catalyzes light-dependent repair using blue light as an energy source.
Mammalian Proteins (Expressed in E. coli)
Rad51 (Human)
Human Rad51 is a functional homolog of E. coli RecA that plays a central role in genetic recombination and repair. It interacts with various proteins, including Rad52 and tumor suppressors like BRCA1 and BRCA2, to maintain genome stability.
Rad52 (Human)
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
DNA Polymerase β (Rat)
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
Human Rad51 is a functional homolog of E. coli RecA that plays a central role in genetic recombination and repair. It interacts with various proteins, including Rad52 and tumor suppressors like BRCA1 and BRCA2, to maintain genome stability.
Rad52 (Human)
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
DNA Polymerase β (Rat)
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
Human Rad52 plays a major role in genetic recombination and repair by mediating strand-annealing reactions between complementary DNA strands. It physically and functionally interacts with Rad51, Dmc1, and RPA during the recombination process.
This is a highly purified, full-length recombinant rat DNA polymerase β. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps.
DNA Polymerase κ (Human)
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
This is a highly purified recombinant human DNA polymerase κ containing a C-terminal His-tag. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass.
Product Information
[Date : July 08 2026 00:08]
| Detail | Product Name | Product Code | Supplier | Size | Price | ||||||||||||||||||||||||||||||
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LexA Repressor, Recombinant DatasheetThis may not be the latest data sheet. |
01-005 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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LexA Repressor, Recombinant DatasheetThis may not be the latest data sheet. |
01-006 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
LexA Repressor, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-005
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 0.8mg/ml |
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| Storage | -80°C | CAS | |
| Link | |||
LexA Repressor, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-006
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 0.8mg/ml |
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|---|---|---|---|
| Storage | -20°C | CAS | |
| Link | |||
[Date : July 08 2026 00:08]
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RecQ DNA Helicase, Recombinant DatasheetThis may not be the latest data sheet. |
01-003 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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RecQ DNA Helicase, Recombinant DatasheetThis may not be the latest data sheet. |
01-004 | BAKBioAcademia, Inc. | 100 µg | $1,405 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
RecQ DNA Helicase, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-003
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 0.5mg/ml |
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| Storage | -80°C | CAS | |
| Link | |||
RecQ DNA Helicase, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-004
- Supplier: BAK
- Size: 100µg
- Price: $1,405
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 0.5mg/ml |
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|---|---|---|---|
| Storage | -20°C | CAS | |
| Link | |||
[Date : July 08 2026 00:08]
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RuvA, Recombinant DatasheetThis may not be the latest data sheet. |
01-007 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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RuvA, Recombinant DatasheetThis may not be the latest data sheet. |
01-008 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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RuvB, Recombinant DatasheetThis may not be the latest data sheet. |
01-009 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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RuvB, Recombinant DatasheetThis may not be the latest data sheet. |
01-010 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
RuvA, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-007
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 2.7mg/ml |
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| Storage | -20°C | CAS | |
| Link | |||
RuvA, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-008
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 2.0mg/ml |
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| Storage | -20°C | CAS | |
| Link | |||
RuvB, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-009
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 2.0mg/ml |
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| Storage | -20°C | CAS | |
| Link | |||
RuvB, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-010
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 2.0mg/ml |
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|---|---|---|---|
| Storage | -20°C | CAS | |
| Link | |||
[Date : July 08 2026 00:08]
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RuvC, Recombinant DatasheetThis may not be the latest data sheet. |
01-011 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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RuvC, Recombinant DatasheetThis may not be the latest data sheet. |
01-012 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
RuvC, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-011
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
E. coli RuvC protein is a structurally specific endonuclease which binds specifically to the Holliday junction (structure). Holliday junction is known as an intermediate of recombination at the late stage of homologous recombination and recombination repair. RuvC protein forms a homodimer and introduces a nick in the symmetrical point of the Holliday junction cleaving and resolving the recombinant. Origin : E.coli |
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| Storage | -20°C | CAS | |
| Link | |||
RuvC, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 01-012
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Origin : E.coli Purity : >90% (SDS-PAGE) Concentration : 13mg/ml |
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| Storage | -20°C | CAS | |
| Link | |||
[Date : July 08 2026 00:08]
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E. coli DNA Photolyase DatasheetThis may not be the latest data sheet. |
01-013 | BAKBioAcademia, Inc. | 20 µg | $328 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
E. coli DNA Photolyase
DatasheetThis may not be the latest data sheet.
- Product Code: 01-013
- Supplier: BAK
- Size: 20µg
- Price: $328
| Description |
E. coli DNA photolyase is a DNA repair enzyme that monomerizes cyclobutane pyrimidine dimers (CPDs) formed between adjacent bases in a DNA strand. It binds specifically to UV-damaged DNA and catalyzes light-dependent repair using blue light as an energy source. Purified recombinant full-size E. coli Photolyase (Deoxyribodipyrimidine photolyase). Buffer: 25 mM Tris-HCI (pH 7.4), 50 mM KCl, 0.5 mM EDTA, 5 mM β-mercaptoethanol, 50% Glycerol |
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| Storage | -20°C | CAS | |
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[Date : July 08 2026 00:08]
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Rad51, Human, Recombinant DatasheetThis may not be the latest data sheet. |
10-001 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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Rad51, Human, Recombinant DatasheetThis may not be the latest data sheet. |
10-002 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
Rad51, Human, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 10-001
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Purity:＞95%(SDS-PAGE), Host: E. coli, Concentration: 1.0 mg/mL. Human Rad51 protein is a functional and structural homolog of E. coli RecA protein, playing a major role in genetic recombination and recombinational repair by mediating strand-exchange reactions between homologous DNA strands. It physically and functionally interacts with various proteins, including its paralogs, Rad52, and key tumor suppressors such as BRCA1, BRCA2, and P53 to maintain genome stability. This highly purified recombinant protein retains robust nuclear filament-forming capabilities, strand-exchange activity, and ATP-stimulated single-stranded DNA binding activity. Rad51 protein was highly purified from E. coli over-expressing human Rad51 protein as a recombinant protein. The tag was removed from the recombinant protein (it still contains Gly-Ser-His at the N-terminal). Buffer: 20 mM Tris-HCl pH8.0, 100 mM KCl, 1 mM DTT, 0.5 mM EDTA, 10% glycerol. |
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| Storage | -80°C | CAS | |
| Link | |||
Rad51, Human, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 10-002
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Purity:＞95%(SDS-PAGE), Host: E. coli, Concentration: 1.0 mg/mL. Human Rad51 protein is a functional and structural homolog of E. coli RecA protein, playing a major role in genetic recombination and recombinational repair by mediating strand-exchange reactions between homologous DNA strands. It physically and functionally interacts with various proteins, including its paralogs, Rad52, and key tumor suppressors such as BRCA1, BRCA2, and P53 to maintain genome stability. This highly purified recombinant protein retains robust nuclear filament-forming capabilities, strand-exchange activity, and ATP-stimulated single-stranded DNA binding activity. Rad51 protein was highly purified from E. coli over-expressing human Rad51 protein as a recombinant protein. The tag was removed from the recombinant protein (it still contains Gly-Ser-His at the N-terminal). Buffer: 20 mM Tris-HCl pH8.0, 100 mM KCl, 1 mM DTT, 0.5 mM EDTA, 10% glycerol. |
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| Storage | -80°C | CAS | |
| Link |
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[Date : July 08 2026 00:08]
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Rad52, Human, Recombinant DatasheetThis may not be the latest data sheet. |
10-003 | BAKBioAcademia, Inc. | 20 µg | $349 | |||||||||||||||||||||||||||||||
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Rad52, Human, Recombinant DatasheetThis may not be the latest data sheet. |
10-004 | BAKBioAcademia, Inc. | 100 µg | $1,053 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
Rad52, Human, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 10-003
- Supplier: BAK
- Size: 20µg
- Price: $349
| Description |
Purity:＞90%(SDS-PAGE)，Host:E. coli，Concentration:1.0 mg/ml |
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| Storage | -80°C | CAS | |
| Link | |||
Rad52, Human, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 10-004
- Supplier: BAK
- Size: 100µg
- Price: $1,053
| Description |
Purity:＞90%(SDS-PAGE)，Host:E. coli，Concentration:1.0 mg/ml |
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|---|---|---|---|
| Storage | -80°C | CAS | |
| Link | |||
[Date : July 08 2026 00:08]
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DNA polymerase β (Rat), functional DatasheetThis may not be the latest data sheet. |
10-101 | BAKBioAcademia, Inc. | 20 µg | $262 | |||||||||||||||||||||||||||||||
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DNA polymerase β (Rat), functional DatasheetThis may not be the latest data sheet. |
10-102 | BAKBioAcademia, Inc. | 100 µg | $790 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
DNA polymerase β (Rat), functional
DatasheetThis may not be the latest data sheet.
- Product Code: 10-101
- Supplier: BAK
- Size: 20µg
- Price: $262
| Description |
This is a highly purified, full-length recombinant rat DNA polymerase β expressed in E. coli with high enzymatic activity without any tag attached. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps. The enzyme has molecular mass of 38 kDa. The amino acid sequence of the rat enzyme has 86% identity to the human homolog. Buffer: 50mM Tris-HCl pH7.6, 0.3M KCl, 0.1mM EDTA, 1mM DTT, 20% glycerol. |
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| Storage | -80°C | CAS | |
| Link | |||
DNA polymerase β (Rat), functional
DatasheetThis may not be the latest data sheet.
- Product Code: 10-102
- Supplier: BAK
- Size: 100µg
- Price: $790
| Description |
This is a highly purified, full-length recombinant rat DNA polymerase β expressed in E. coli with high enzymatic activity without any tag attached. It plays a pivotal role in base excision repair (BER), helping to maintain DNA integrity by filling single-nucleotide gaps. The enzyme has molecular mass of 38 kDa. The amino acid sequence of the rat enzyme has 86% identity to the human homolog. Buffer: 50mM Tris-HCl pH7.6, 0.3M KCl, 0.1mM EDTA, 1mM DTT, 20% glycerol. |
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[Date : July 08 2026 00:08]
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DNA Polymerase κ, Functional, Human, Recombinant DatasheetThis may not be the latest data sheet. |
10-105 | BAKBioAcademia, Inc. | 50 µg | $411 | |||||||||||||||||||||||||||||||
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[Date : July 08 2026 00:08]
DNA Polymerase κ, Functional, Human, Recombinant
DatasheetThis may not be the latest data sheet.
- Product Code: 10-105
- Supplier: BAK
- Size: 50µg
- Price: $411
| Description |
This is a highly purified recombinant human DNA polymerase κ(1-560 aa) containing a C-terminal His-tag, expressed in E. coli. It specializes in translesion synthesis (TLS), making it a valuable tool for functional analyses of DNA damage bypass. The product is catalytically active and its molecular weight is 65 kD. Activity of this product has been confirmed by a user researcher even if it was diluted 8,000-fold. Buffer: 50% glycerol, 10 mM sodium phosphate buffer (pH 7.0), 0.2 M NaCl. |
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| Storage | -20°C | CAS | |
| Link | |||
CONTACT
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