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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: Midasin

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

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR003593 AAA+_ATPase
IPR040848 AAA_lid_7
IPR011704 ATPase_dyneun-rel_AAA
IPR048617 MDN1_AAA_lid_4
IPR012099 Midasin
IPR041190 Midasin_AAA_lid_5
IPR027417 P-loop_NTPase
IPR002035 VWF_A
IPR036465 vWFA_dom_sf

The S-nitrosylation sites of Q9NU22

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 1394 EPVLLVGDTG C GKTTICQVFA   
2 1867 VQHEKTKIFG C QNPFRQGGGR   
3 2158 SHFLLTYKPK C LGEGGKAITM   
4 3070 NLNRPIFSKC C FEVLTSSWRA   
5 3263 YVKEELHQLQ C EWKTRNLSSQ   
6 3985 KKFEAVLSEP C RSSLVESDKE   
7 4192 LTEISSSWDG C QKYFYRSLAR   
8 4371 PIPGSQLPSG C RMRKQDHLWQ   
9 4517 QMEIAIRAIL C AIQNLEERKN   
10 554 ELSLRDLLNW C NRIAHSFDSS   
11 979 RALRFAASNP C GNIQRSLYEG