Protein Name:
Integrator complex assembly factor BRAT1
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UniprotKB/SwissProt ID: Q6PJG6 (Q6PJG6)
Gene Name:
BRAT1
Organism: Homo sapiens (Human)
Function: Component of a multiprotein complex required for the assembly of the RNA endonuclease module of the integrator complex (PubMed:39032489, PubMed:39032490). Associates with INTS9 and INTS11 in the cytoplasm and blocks the active site of INTS11 to inhibit the endonuclease activity of INTS11 before formation of the full integrator complex (PubMed:39032489, PubMed:39032490). Following dissociation of WDR73 of the complex, BRAT1 facilitates the nuclear import of the INTS9-INTS11 heterodimer (PubMed:39032489). In the nucleus, INTS4 is integrated to the INTS9-INTS11 heterodimer and BRAT1 is released from the mature RNA endonuclease module by inositol hexakisphosphate (InsP6) (PubMed:39032489). BRAT1 is also involved in DNA damage response; activates kinases ATM, SMC1A and PRKDC by modulating their phosphorylation status following ionizing radiation (IR) stress (PubMed:16452482, PubMed:22977523). Plays a role in regulating mitochondrial function and cell proliferation (PubMed:25070371). Required for protein stability of MTOR and MTOR-related proteins, and cell cycle progress by growth factors (PubMed:25657994)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Nucleus. Cytoplasm
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of Q6PJG6
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
308 |
LALGILKLEH C PQALRTQAFQ |
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| 2 |
487 |
WLLSSPKTPG C SDLGPLIPQF |
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| 3 |
673 |
GQTLGPPRTH C PYAVALPEVA |
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| 4 |
720 |
DCDRPVAQKS C DLLLFLRDKI |
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| 5 |
820 |
GGFLQGDEAD C Y--------- |
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