Flap endonuclease 1/FEN-1 Protein, Human
Based on 1 Customer Validation
Flap endonuclease 1 (FEN-1) is a structure-specific nuclease crucial for DNA replication and repair. In replication, it cleaves 5'-overhanging flaps, guiding DNA polymerase and creating a nick for ligation. FEN-1 is integral to the long patch base excision repair pathway, preventing genomic instability. It exhibits 5'-3' exonuclease and RNase H activities, playing roles in rDNA and mitochondrial DNA replication and repair. Flap endonuclease 1/FEN-1 Protein, Human is the recombinant human-derived Flap endonuclease 1/FEN-1 protein, expressed by E. coli , with tag free.
- Species: Human
- Source: E. coli
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
Flap endonuclease 1 (FEN-1) is a structure-specific nuclease crucial for DNA replication and repair. In replication, it cleaves 5'-overhanging flaps, guiding DNA polymerase and creating a nick for ligation. FEN-1 is integral to the long patch base excision repair pathway, preventing genomic instability. It exhibits 5'-3' exonuclease and RNase H activities, playing roles in rDNA and mitochondrial DNA replication and repair. Flap endonuclease 1/FEN-1 Protein, Human is the recombinant human-derived Flap endonuclease 1/FEN-1 protein, expressed by E. coli , with tag free.
Background
Flap endonuclease 1 (FEN-1) is a structure-specific nuclease with dual enzymatic activities, functioning in both DNA replication and repair processes. In DNA replication, FEN-1 plays a crucial role by cleaving the 5'-overhanging flap structure generated during displacement synthesis, allowing DNA polymerase to navigate the 5'-end of a downstream Okazaki fragment. It enters the flap from the 5'-end and tracks to cleave the flap base, creating a nick for subsequent ligation. Additionally, FEN-1 is integral to the long patch base excision repair (LP-BER) pathway, where it cleaves within the apurinic/apyrimidinic (AP) site-terminated flap. Acting as a genome stabilization factor, FEN-1 prevents the equilibration of flaps into structures that may lead to duplications or deletions. Furthermore, the protein exhibits 5'-3' exonuclease activity on nicked or gapped double-stranded DNA and possesses RNase H activity. FEN-1's versatile functions extend to replication and repair processes in rDNA and mitochondrial DNA.
Verified Bioactivity
Biological activity has been tested in vitro.
MCE Validation Data
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Purity - SDS-PAGE
Purity - SDS-PAGE
Technical Parameters
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Species Human
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Source E. coli
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Tag Tag Free
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Accession
P39748-1 (M1-K380)
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Molecular Construction
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N-term
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FEN-1 (M1-K380)
Accession # P39748-1 -
C-term
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Protein Length
Full Length of Isoform-1
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Synonyms
FEN1; Flap Endonuclease 1; Prev. RAD2; Maturation Factor-1; FEN-1; Maturation Factor 1; MF1; HFEN-1; Flap Structure-Specific Endonuclease 1; DNase IV
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AA Sequence
MGIQGLAKLIADVAPSAIRENDIKSYFGRKVAIDASMSIYQFLIAVRQGGDVLQNEEGETTSHLMGMFYRTIRMMENGIKPVYVFDGKPPQLKSGELAKRSERRAEAEKQLQQAQAAGAEQEVEKFTKRLVKVTKQHNDECKHLLSLMGIPYLDAPSEAEASCAALVKAGKVYAAATEDMDCLTFGSPVLMRHLTASEAKKLPIQEFHLSRILQELGLNQEQFVDLCILLGSDYCESIRGIGPKRAVDLIQKHKSIEEIVRRLDPNKYPVPENWLHKEAHQLFLEPEVLDPESVELKWSEPNEEELIKFMCGEKQFSEERIRSGVKRLSKSRQGSTQGRLDDFFKVTGSLSSAKRKEPEPKGSTKKKAKTGAAGKFKRGK
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Predicted Molecular Mass
42.6 kDa
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Molecular Weight
Approximately 45 kDa, based on SDS-PAGE under reducing conditions.
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
Lyophilized from a 0.22 μm filtered solution of 20 mM Tris, 150 mM NaCl, 6% trehalose, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
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Data Sheet (237 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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