| Product Name |
Recombinant Human X-Ray Repair Cross Complementing 5 (XRCC5) Protein |
| Product Overview |
This recombinant human X-Ray Repair Cross Complementing 5 (XRCC5) protein includes amino acids 2-460 of the target gene is expressed in E.coli.The protein is supplied in lyophilized form and formulated in PBS pH 7.4, 0.01% SKL, 5% Trehalose, 1% Mannitolprior to lyophilization. |
| Target Uniprot Id |
P13010 |
| Recommended Name |
X-ray repair cross-complementing protein 5 |
| Gene Name |
XRCC5 |
| Synonyms |
KARP1; KU80; KUB2; Ku86; NFIV; TLAA; Lupus Ku Autoantigen Protein P80; Nuclear factor IV; 86 kDa of Ku antigen; CTC box-binding factor 85 kDa; Thyroid-lupus autoantigen |
| Species |
Human |
| Predicted Molecular Mass |
56kDa |
| Expression System |
E.coli |
| Expression Range |
2-460 |
| Tag |
N-6His |
| Purity |
>90% |
| Formulation |
Lyophilized |
| Buffer |
PBS pH 7.4, 0.01% SKL, 5% Trehalose, 1% Mannitol |
| Storage Condition |
1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C. |
| Reconstitution Instruction |
Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%. |
| Applications |
Positive Control; Immunogen; SDS-PAGE; WB |
| Research Area |
Epigenetics And Nuclear Signaling |
| Target Function |
Single-stranded DNA-dependent ATP-dependent helicase that plays a key role in DNA non-homologous end joining (NHEJ) by recruiting DNA-PK to DNA. Required for double-strand break repair and V(D)J recombination. Also has a role in chromosome translocation. The DNA helicase II complex binds preferentially to fork-like ends of double-stranded DNA in a cell cycle-dependent manner. It works in the 3'-5' direction. During NHEJ, the XRCC5-XRRC6 dimer performs the recognition step: it recognizes and binds to the broken ends of the DNA and protects them from further resection. Binding to DNA may be mediated by XRCC6. The XRCC5-XRRC6 dimer acts as regulatory subunit of the DNA-dependent protein kinase complex DNA-PK by increasing the affinity of the catalytic subunit PRKDC to DNA by 100-fold. The XRCC5-XRRC6 dimer is probably involved in stabilizing broken DNA ends and bringing them together. The assembly of the DNA-PK complex to DNA ends is required for the NHEJ ligation step. The XRCC5-XRRC6 dimer probably also acts as a 5'-deoxyribose-5-phosphate lyase (5'-dRP lyase), by catalyzing the beta-elimination of the 5' deoxyribose-5-phosphate at an abasic site near double-strand breaks. XRCC5 probably acts as the catalytic subunit of 5'-dRP activity, and allows to 'clean' the termini of abasic sites, a class of nucleotide damage commonly associated with strand breaks, before such broken ends can be joined. The XRCC5-XRRC6 dimer together with APEX1 acts as a negative regulator of transcription. In association with NAA15, the XRCC5-XRRC6 dimer binds to the osteocalcin promoter and activates osteocalcin expression. As part of the DNA-PK complex, involved in the early steps of ribosome assembly by promoting the processing of precursor rRNA into mature 18S rRNA in the small-subunit processome. Binding to U3 small nucleolar RNA, recruits PRKDC and XRCC5/Ku86 to the small-subunit processome. Plays a role in the regulation of DNA virus-mediated innate immune response by assembling into the HDP-RNP complex, a complex that serves as a platform for IRF3 phosphorylation and subsequent innate immune response activation through the cGAS-STING pathway. |
| Subcellular Location |
Nucleus. Nucleus, nucleolus. Chromosome. |
| Protein Family |
Ku80 family |
