Protein Name:
Midasin
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UniprotKB/SwissProt ID: Q9NU22 (Q9NU22)
Gene Name:
MDN1
Organism: Homo sapiens (Human)
Function: Nuclear chaperone required for maturation and nuclear export of pre-60S ribosome subunits (PubMed:27814492). Functions at successive maturation steps to remove ribosomal factors at critical transition points, first driving the exit of early pre-60S particles from the nucleolus and then driving late pre-60S particles from the nucleus (By similarity). At an early stage in 60S maturation, mediates the dissociation of the PeBoW complex (PES1-BOP1-WDR12) from early pre-60S particles, rendering them competent for export from the nucleolus to the nucleoplasm (By similarity). Subsequently recruited to the nucleoplasmic particles through interaction with SUMO-conjugated PELP1 complex (PubMed:27814492). This binding is only possible if the 5S RNP at the central protuberance has undergone the rotation to complete its maturation (By similarity)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Nucleus, nucleolus. Nucleus, nucleoplasm. Cytoplasm
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of Q9NU22
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
1394 |
EPVLLVGDTG C GKTTICQVFA |
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| 2 |
1867 |
VQHEKTKIFG C QNPFRQGGGR |
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| 3 |
2158 |
SHFLLTYKPK C LGEGGKAITM |
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| 4 |
3070 |
NLNRPIFSKC C FEVLTSSWRA |
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| 5 |
3263 |
YVKEELHQLQ C EWKTRNLSSQ |
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| 6 |
3985 |
KKFEAVLSEP C RSSLVESDKE |
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| 7 |
4192 |
LTEISSSWDG C QKYFYRSLAR |
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| 8 |
4371 |
PIPGSQLPSG C RMRKQDHLWQ |
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| 9 |
4517 |
QMEIAIRAIL C AIQNLEERKN |
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| 10 |
554 |
ELSLRDLLNW C NRIAHSFDSS |
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| 11 |
979 |
RALRFAASNP C GNIQRSLYEG |
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