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Sep. 10, 2014:
A total of 174 experimentally verified S-nitrosylation sites on 94 S-nitrosylated proteins from individualized human colorectal cancer tissues using a label-free quantitation strategy.

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Protein Name: DNA (cytosine-5)-methyltransferase 1

UniprotKB/SwissProt ID: P26358 (P26358)

Gene Name: DNMT1

Organism: Homo sapiens (Human)

Function: Methylates CpG residues. Preferentially methylates hemimethylated DNA. Associates with DNA replication sites in S phase maintaining the methylation pattern in the newly synthesized strand, that is essential for epigenetic inheritance. Associates with chromatin during G2 and M phases to maintain DNA methylation independently of replication. It is responsible for maintaining methylation patterns established in development. DNA methylation is coordinated with methylation of histones. Mediates transcriptional repression by direct binding to HDAC2. In association with DNMT3B and via the recruitment of CTCFL/BORIS, involved in activation of BAG1 gene expression by modulating dimethylation of promoter histone H3 at H3K4 and H3K9. Probably forms a corepressor complex required for activated KRAS-mediated promoter hypermethylation and transcriptional silencing of tumor suppressor genes (TSGs) or other tumor-related genes in colorectal cancer (CRC) cells (PubMed:24623306). Also required to maintain a transcriptionally repressive state of genes in undifferentiated embryonic stem cells (ESCs) (PubMed:24623306). Associates at promoter regions of tumor suppressor genes (TSGs) leading to their gene silencing (PubMed:24623306). Promotes tumor growth (PubMed:24623306)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR001025 BAH_dom
IPR043151 BAH_sf
IPR050390 C5-Methyltransferase
IPR018117 C5_DNA_meth_AS
IPR001525 C5_MeTfrase
IPR031303 C5_meth_CS
IPR022702 Cytosine_MeTrfase1_RFD
IPR010506 DMAP1-bd
IPR017198 DNMT1-like
IPR029063 SAM-dependent_MTases_sf
IPR002857 Znf_CXXC

The S-nitrosylation sites of P26358

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 1071 TVEYGEDLPE C VQVYSMGGPN   
2 1125 KGKGKPKSQA C EPSEPEIEIK   
3 1191 NPGSTVFTED C NILLKLVMAG   
4 1221 LPQKGDVEML C GGPPCQGFSG   
5 1226 DVEMLCGGPP C QGFSGMNRFN   
6 1339 EPLHVFAPRA C QLSVVVDDKK   
7 1476 RSSSGALRGV C SCVEAGKACD   
8 356 SKTHPPKCIQ C GQYLDDPDLK   
9 420 FSVYCKHGHL C PIDTGLIEKN   
10 580 SDEQPIFLTP C MRDLIKLAGV   
11 62 FLQTEIKNQL C DLETKLRKEE   
12 751 DGKKSYYKKV C IDAETLEVGD   
13 896 EDNKFKFCVS C ARLAEMRQKE