Recombinant Human Endonuclease III-like protein 1 (NTHL1)

1. The processing of the lesions was evaluated by purified enzyme cocktails of hNTH1 and hOGG1 as well as with a HeLa cell extract. Interestingly, the yield of double-strand breaks (DSBs) resulting from the processing of the bistranded lesions are appreciably lower when the DNA is treated with the HeLa cell extract compared with the relevant purified enzyme cocktail in both models PMID: 30207305
2. NTHL1 in these extracts was able to excise thymine glycol from both naked DNA and sites in nucleosomes that earlier studies had shown to be sterically accessible. However, the same extracts were able to excise lesions from sterically-occluded sites in nucleosomes only after the addition of Mg2+/ATP. PMID: 28709015
3. WT NTHL1 (human) and Nth (E. coli) are remarkably alike with respect to specificity of glycosylase reaction, and although NTHL1 is a much slower enzyme than Nth, the tighter binding of NTHL1 compensates, resulting in similar kcat/Kd values for both enzymes with each of the substrates tested. For NTHL1 Gln287Ala, specificity for substrates positioned opposite G is lost, but not that of substrates positioned opposite A. PMID: 28292631
4. We therefore found published evidence to support the association between variants in NTHL1 and RPS20 with CRC. PMID: 27713038
5. Both Ntg1 and its human homologue, NTHL1, can be SUMO-modified in response to oxidative stress. PMID: 27839712
6. NTH1 polymorphisms may be associated with non-small cell lung cancer pathogenesis. PMID: 26400813
7. This study extends the description of biallelic mutations in NTHL1 beyond the single c.268C-->T,p.Q90* mutation that was observed previously. PMID: 26559593
8. A homozygous loss-of-function germline mutation in the NTHL1 gene predisposes to a new subtype of BER-associated adenomatous polyposis and colorectal cancer. PMID: 25938944
9. we demonstrated that hNEIL1 and hNTH1 cleave Oz sites as efficiently as 5-hydroxyuracil sites. Thus, hNEIL1 and hNTH1 can repair Oz lesions PMID: 22465744
10. NTH1 is involved in removal of 8-oxoguanine from 8-oxoguanine/guanine mispairs in DNA PMID: 11328882
11. recombinant hNTH1 lacking 55, 72 or 80 residues from the N terminus had four- to fivefold higher activities than the full-length enzyme PMID: 12144783
12. substrate selectivity of mammalian NTH1 and the concomitant selective stimulation of activity by APE1 are indicative of selective repair of oxidative damage in different regions of the genome PMID: 12519758
13. dimerization of hNTH1 involving the N-terminal tail masks the inhibitory effect of this tail and plays a critical role in its catalytic turnover in the cell PMID: 14522981
14. hNTH1 and hNEIL1 but not hNEIL2 excised the two stereoisomers of thymine glycol (5R-Tg and 5S-Tg), but their isomer specificity was markedly different PMID: 14734554
15. search for the factors interacting with NTH1 shows GST-NTH1 fusion protein precipitates proliferating cell nuclear antigen (PCNA) and p53 as well as XPG from human cell-free extracts PMID: 15358233
16. NTH1 is a DNA glycosylase that excise 5-formyluracil, 5-hydroxymethyluracil and Thymine glycol in human cells. PMID: 15533839
17. hNTH1 plays two roles in the processing of radiation damages: repair of potentially lethal single lesions and generation of lethal double strand breaks at clustered damage sites. PMID: 16111924
18. Nth1 released 5R,6S 2'-deoxyribonucleoside diastereoisomer (Tg2) much more rapidly than cis 5S,6R-deoxyribonucleoside diastereoisomer (Tg1) regardless of the opposing purine. Neil1 released Thymine glycol non-stereoselectively. PMID: 16446124
19. The damage specificity of human homologues of Endo III (hNTHl) and Endo VIII (hNEIL1 and hNEIL2) is compared to elucidate the repair role in cells. PMID: 17150535
20. These observations suggest that access to sterically occluded lesions entails the partial, reversible unwrapping of DNA from the histone octamer, allowing hNTH1 to capture its DNA substrate when it is in an unwound state. PMID: 17923696
21. Downregulation of NTH1 is associated with gastric cancer. PMID: 19414504

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HGNC: 8028

OMIM: 602656

KEGG: hsa:4913

STRING: 9606.ENSP00000219066

UniGene: Hs.66196