E. coli biotin ligase
(BirA) is highly specific in covalently attaching biotin to the 15
amino
acid AviTag peptide. This recombinant protein was biotinylated in
vivo
by AviTag-BirA technology, which method is BriA catalyzes amide
linkage
between the biotin and the specific lysine of the AviTag.
DNA ligase IV ATP dependent; DNA joinase; DNA ligase 4; DNA ligase IV; DNA repair enzyme; DNLI4_HUMAN; LIG 4; LIG4; LIG4S; Ligase IV; Ligase IV DNA ATP dependent; Polydeoxyribonucleotide synthase [ATP] 4; Polydeoxyribonucleotide synthase 4; Polydeoxyribonucleotide synthase; Polynucleotide ligase; Sealase
The tag type will
be
determined during production process. If you have specified tag
type, please tell us and we will develop the specified tag
preferentially.
產(chǎn)品提供形式:
Lyophilized powder
Note: We will
preferentially ship the format that we have in stock, however,
if you have any special requirement for the format, please
remark your requirement when placing the order, we will prepare
according to your demand.
復(fù)溶:
We recommend that this vial be briefly centrifuged
prior
to opening to bring the contents to the bottom. Please reconstitute
protein in deionized sterile water to a concentration of 0.1-1.0
mg/mL.We recommend to add 5-50% of glycerol (final concentration)
and
aliquot for long-term storage at -20℃/-80℃. Our default final
concentration of glycerol is 50%. Customers could use it as
reference.
儲(chǔ)存條件:
Store at -20°C/-80°C upon receipt, aliquoting is
necessary for
mutiple use. Avoid repeated freeze-thaw cycles.
保質(zhì)期:
The shelf life is related to many factors, storage
state,
buffer ingredients, storage temperature and the stability of the
protein
itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C.
The
shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期:
Delivery time may
differ from different purchasing way or location, please kindly
consult your local distributors for specific delivery time.
Note: All of our
proteins are default shipped with normal blue ice packs, if you
request to ship with dry ice, please communicate with us in
advance
and extra fees will be charged.
注意事項(xiàng):
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
DNA ligase involved in DNA non-homologous end joining (NHEJ); required for double-strand break (DSB) repair and V(D)J recombination. Catalyzes the NHEJ ligation step of the broken DNA during DSB repair by resealing the DNA breaks after the gap filling is completed. Joins single-strand breaks in a double-stranded polydeoxynucleotide in an ATP-dependent reaction. LIG4 is mechanistically flexible: it can ligate nicks as well as compatible DNA overhangs alone, while in the presence of XRCC4, it can ligate ends with 2-nucleotides (nt) microhomology and 1-nt gaps. Forms a subcomplex with XRCC4; the LIG4-XRCC4 subcomplex 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. LIG4 regulates nuclear localization of XRCC4.
基因功能參考文獻(xiàn):
Cells doubly deficient in Pol theta; and Lig4 exhibit 100% gene-targeting efficiency because of virtually no random integration events. PMID: 28695890
These studies provide a scaffold for defining impacts of LigIV catalytic core mutations and deficiencies in human LIG4 syndrome. PMID: 29980672
study demonstrated that there was an association between DNA ligase 4 Thr9Ile polymorphism and male infertility and suggests CT genotype as a risk factor for male infertility PMID: 28991497
An increased frequency of binucleated lymphocytes with micronuclei was increased in carriers of the T/T genotype of the LIG4 (rs1805388) gene compared to miners harbouring the C/T genotype. PMID: 28992182
Cellular NHEJ of diverse ends thus identifies the steps necessary for repair through LIG4-mediated sensing of differences in end structure and consequent dynamic remodeling of aligned ends. PMID: 28930678
This study shown that both ligase IV and XRCC4 may act in concert to modulate the development of glioma. PMID: 27508978
We demonstrated an association between six previously published single nucleotide polymorphisms (rs15869 [ BRCA2], rs1805389 [ LIG4], rs8079544 [ TP53], rs25489 [ XRCC1], rs1673041 [ POLD1], and rs11615 [ ERCC1]) and subsequent CNS tumors in survivors of childhood cancer treated by radiation therapy. PMID: 28976792
In a recombinant PNKP-XRCC4-LigIV complex, both the PNKP FHA and catalytic domains contact the XRCC4 coiled-coil and LigIV BRCT repeats. Multipoint contacts between PNKP and XRCC4-LigIV regulate PNKP recruitment and activity within NHEJ. PMID: 28453785
Data suggest that stimulation of Artemis nuclease/DCLRE1C activity by XRCC4-DNA ligase IV hetero-complex and efficiency of blunt-end ligation are determined by structural configurations at the DNA ends. (XRCC4 = X-ray repair cross complementing 4) PMID: 28696258
found that the rs228593, rs2267437 and rs1805388 functional polymorphisms probably alter the level of expression of the ATM, XRCC6 and LIG4 genes, respectively, being important in the maintenance of genomic instability in MDS PMID: 27497341
marked overlap of dyskeratosis congenita with four other genetic syndromes, confounding accurate diagnosis and subsequent management. Patients with clinical features of dyskeratosis congenita need to have genetic analysis of USB1, LIG4 and GRHL2 in addition to the classical dyskeratosis congenita genes and telomere length measurements. PMID: 27612988
The rs1805388 in LIG4 was associated with increased radioresistance. PMID: 26974709
LIG4 is highly upregulated in human colorectal cancer cells. PMID: 27009971
Five novel mutations in LIG4 and a potential hotspot mutation (c.833G > T; p.R278L) in the Chinese population with LIG4 deficiency syndrome were identified. PMID: 26762768
Our study identifies LIG4 as a predictor of an increased risk for early biochemical recurrence in prostate cancer PMID: 26134445
The genetic polymorphisms in LIG4 rs1805388 and HSPB1 rs2868371 were not obviously correlated with the risk of radiation pneumonitis and radiation-induced lung injury of lung cancer. PMID: 25811031
our results suggest that LIG4 rs10131 polymorphism in the DNA repair pathways plays an important role in the risk of glioma in a Chinese population. PMID: 25973104
Our data showed that Cd altered the phosphorylation of DNA-PKcs, and reduced the expression of both XRCC4 and Ligase IV in irradiated cells. PMID: 26201248
despite several limitations, this meta-analysis suggested that LIG4 T9I genetic variant is associated with a decreased risk of cancer among Caucasians, however, the rs1805386 gene polymorphism is not a risk factor of cancer. PMID: 25314918
High LIG4 expression is associated with less radiosensitivity of nasopharyngeal cancer. PMID: 25605214
DNA Ligase IV is required for efficient localization of XRCC4 and XLF into cell nucleus. PMID: 24984242
Ku-independent, LIGIV-dependent repair pathway exists in human somatic cells. PMID: 24837021
LIG4 Thr9Ile polymorphism is associated with treatment response in advanced non-small cell lung cancer. PMID: 24722796
Our data did not show association between LIG4 and RAD52 SNPs and SLE, its clinical manifestations or ethnicity in the tested population. PMID: 24415301
Loss of LIG4 is associated with colorectal cancer. PMID: 24282031
Results show that in cells deficient for Lig4, chromosomal translocations junctions had significantly longer deletions and more microhomologies. PMID: 25201414
Characterization of the protein interaction domains that modulate the XRCC4/Ligase IV interaction. PMID: 23794378
study reports the identification of biallelic truncating LIG4 mutations in 11 patients with microcephalic primordial dwarfism presenting with restricted prenatal growth and extreme postnatal global growth failure PMID: 24123394
DNA ligase IV expression of K562/DNR was also suppressed significantly with Sp1 family protein inhibition PMID: 24530422
DNA ligase IV and Artemis act cooperatively to promote nonhomologous end-joining PMID: 23967291
These results indicate for the first time that LIG4 rs1805388 and X-ray Repair Cross Complementing-4 (XRCC4) rs1805377, alone or in combination, are associated with a risk of gliomas. PMID: 23663450
The chromatin binding of XRCC4 was dependent on the presence of LIG4. PMID: 23994631
genetic association studies in population in China: Data suggest that SNPs in LIG4 (rs1805388, exon 2 54C>T, Thr9Ile) and RAG1 (recombination activating gene 1, rs2227973, A>G, K820R) are associated with male infertility. PMID: 23630330
No association between LIG4 gene polymorphisms (rs1805386 T>C, rs1805389 C>T, rs1805388 C>T and rs2232641 A>G) and breast cancer risk. PMID: 22994770
Structural basis of DNA ligase IV-Artemis interaction in nonhomologous end-joining. PMID: 23219551
DNA Ligase IV is differentially required for certain chromosome fusion events induced by telomere dysfunction. PMID: 23275564
The flexibility of the DNA ligase IV catalytic region is limited in a manner that affects the formation of the LigIV/XRCC4/XLF-Cernunnos complex. PMID: 22658747
The alpha2 helix in the Lig4 BRCT-1 domain is required for adenovirus-mediated degradation of Lig4. PMID: 22534089
polymorphisms in LIG4 do not contribute to cancer risk in a population of Lynch syndrome patients with colorectal cancer PMID: 21974800
XRCC4 modulates the dynamic interaction of the Ligase IV/XRCC4 complex with the NHEJ machinery at double-stranded DNA breaks PMID: 21982441
The current results indicated that NHEJ genetic polymorphisms, particularly LIG4 rs1805388, may modulate the risk of RP in patients with NSCLC who receive definitive radio(chemo)therapy PMID: 21717429
these results suggest that some variants in XRCC4, LIG4 and Ku80 genes can contribute to thyroid cancer susceptibility PMID: 20811692
in the Chinese population, LIG4 Ile658Val has only a slight impact on the risk of developing cervical carcinoma PMID: 20400235
Polymorphisms in the LIG4, BTBD2, HMGA2, and RTEL1 genes, which are involved in the double-strand break repair pathway, are associated with glioblastoma multiforme survival. PMID: 20368557
role of NHEJ enzyme Ligase IV in the pathogenesis of MDS PMID: 19727724
provide a first sight of the structural organization of the Lig4-Xrcc4 complex, which suggests that the BRCT domains could provide the link of the ligase to Xrcc4 while permitting some movements of the catalytic domains of Lig4. PMID: 19837014
crystal structure of an Xrcc4-DNA ligase IV complex PMID: 11702069
mutations identified in patients exhibiting developmental delay and immunodeficiency PMID: 11779494
Association of DNA polymerase mu (pol mu) with Ku and ligase IV: role for pol mu in end-joining double-strand break repair. PMID: 12077346
Genetic variants of NHEJ DNA ligase IV can affect the risk of developing multiple myeloma, a tumour characterised by aberrant class switch recombination PMID: 12471202
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相關(guān)疾病:
LIG4 syndrome (LIG4S); Severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-negative/NK-cell-positive with sensitivity to ionizing radiation (RSSCID)