英文名稱    DNA Ligase IV    

中文名稱    DNA連接酶4抗體    

別    名    LIG4; DNA ligase IV ATP dependent; DNA ligase IV ATP dependent; DNA joinase; DNA joinase; DNA ligase 4; DNA ligase IV; DNA repair enzyme; DNA repair enzyme; DNLI4_HUMAN; LIG 4; LIG4; LIG-4; Ligase IV; Ligase IV; Ligase IV DNA ATP dependent; Polydeoxyribonucleotide synthase [ATP] 4; Polydeoxyribonucleotide synthase 4; Polydeoxyribonucleotide synthase; Polydeoxyribonucleotide synthase; Polynucleotide ligase; Polynucleotide ligase; Sealase.    

供應商      遠慕生物

研究領域    細胞生物  表觀遺傳學      

抗體來源    Rabbit    

克隆類型    Polyclonal    

交叉反應    Human, Mouse, Rat, Chicken, Dog, Cow, Horse, Rabbit, Sheep,     

產品應用    WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 DNA連接酶4抗體（石蠟切片需做抗原修復） 
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.    

分 子 量    104kDa    

性    狀    Lyophilized or Liquid    

濃    度    1mg/1ml    

免 疫 原    KLH conjugated synthetic peptide derived from human DNA Ligase IV    

亞    型    IgG    

純化方法    affinity purified by Protein A    

儲 存 液    Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4    

保存條件    Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.    

DNA連接酶4抗體產品介紹    background:

The X-ray repair cross-complementing protein XRCC4 and DNA Ligase IV are essential for repairing double-strand breaks in DNA. These proteins form a critical complex consisting of two molecules of each protein that preferentially bind DNA with nicks or broken ends. As an obligate accessory molecule, XRCC4 binds to DNA Ligase IV and enhances its joining activity. The XRCC4/ DNA Ligase IV complex is also involved in V(D)J recombination. V(D)J recombination occurs in normal development of the adaptive immune system and involves the formation of a double-strand break intermediate. Deletions of either DNA Ligase IV or XRCC4 inhibit the completion of V(D)J recombination, resulting in a high incidence of apoptosis in the developing nervous system and a block in B and T cell maturation.

Function:
Efficiently joins single-strand breaks in a double-stranded polydeoxynucleotide in an ATP-dependent reaction. Involved in DNA non-homologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. The LIG4-XRCC4 complex is responsible for the NHEJ ligation step, and XRCC4 enhances the joining activity of LIG4. Binding of the LIG4-XRCC4 complex to DNA ends is dependent on the assembly of the DNA-dependent protein kinase complex DNA-PK to these DNA ends.

Tissue Specificity:
Testis, thymus, prostate and heart.

DISEASE:
Defects in LIG4 are the cause of LIG4 syndrome (LIG4S) [MIM:606593]. This disease is characterized by immunodeficiency and developmental and growth delay. Patients display unusual facial features, microcephaly, growth and/or developmental delay, pancytopenia, and various skin abnormalities.
Defects in LIG4 are a cause of severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-negative/NK-cell-positive with sensitivity to ionizing radiation (RSSCID) [MIM:602450]. SCID refers to a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. Patients with SCID present in infancy with recurrent, persistent infections by opportunistic organisms. The common characteristic of all types of SCID is absence of T-cell-mediated cellular immunity due to a defect in T-cell development. Individuals affected by RS-SCID show defects in the DNA repair machinery necessary for coding joint formation and the completion of V(D)J recombination. A subset of cells from such patients show increased radiosensitivity.

Similarity:
Belongs to the ATP-dependent DNA ligase family. Contains 2 BRCT domains.