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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-directed RNA polymerase, mitochondrial

UniprotKB/SwissProt ID: O00411 (O00411)

Gene Name: POLRMT

Organism: Homo sapiens (Human)

Function: DNA-dependent RNA polymerase catalyzes the transcription of mitochondrial DNA into RNA using the four ribonucleoside triphosphates as substrates (PubMed:21278163, PubMed:33602924). Component of the mitochondrial transcription initiation complex, composed at least of TFB2M, TFAM and POLRMT that is required for basal transcription of mitochondrial DNA (PubMed:29149603). In this complex, TFAM recruits POLRMT to a specific promoter whereas TFB2M induces structural changes in POLRMT to enable promoter opening and trapping of the DNA non-template strand (PubMed:29149603). Has DNA primase activity (PubMed:18685103, PubMed:33602924). Catalyzes the synthesis of short RNA primers that are necessary for the initiation of lagging-strand DNA synthesis from the origin of light-strand DNA replication (OriL) (PubMed:18685103, PubMed:33602924)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Mitochondrion

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR046950 DNA-dir_Rpol_C_phage-type
IPR002092 DNA-dir_Rpol_phage-type
IPR043502 DNA/RNA_pol_sf
IPR037159 RNA_POL_N_sf
IPR029262 RPOL_N
IPR011990 TPR-like_helical_dom_sf

The S-nitrosylation sites of O00411

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 319 QDQDAGTIER C LEQMSQEGLK   
2 535 ALQNHYRKYL C LLASDAEVPE   
3 809 NMDFRGRTYP C PPHFNHLGSD   
4 94 NRVDVARLPE C GSGDGSLQPP