U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Approval Year

Substance Class Protein
Created
by admin
on Wed Apr 02 11:23:16 GMT 2025
Edited
by admin
on Wed Apr 02 11:23:16 GMT 2025
Protein Type NUCLEOLAR PROTEIN
Protein Sub Type
Sequence Origin HUMAN
Sequence Type COMPLETE
Record UNII
EA6MNS8JXJ
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
NUCLEOLIN
Common Name English
PROTEIN C23
Preferred Name English
Code System Code Type Description
UNIPROT
P19338
Created by admin on Wed Apr 02 11:23:16 GMT 2025 , Edited by admin on Wed Apr 02 11:23:16 GMT 2025
PRIMARY
FDA UNII
EA6MNS8JXJ
Created by admin on Wed Apr 02 11:23:16 GMT 2025 , Edited by admin on Wed Apr 02 11:23:16 GMT 2025
PRIMARY
Related Record Type Details
INHIBITOR -> TARGET
Quarfloxin disrupts the interaction between the nucleolin protein and a G-quadruplex DNA structure in the ribosomal DNA (rDNA) template, a critical interaction for rRNA biogenesis that is overexpressed in cancer cells.

Structural Modifications

Modification Type Location Site Location Type Residue Modified Extent Fragment Name Fragment Approval
AMINO ACID REMOVAL [1_8] [1_14] [1_15] [1_95] [1_102] [1_108] [1_115] [1_123] [1_317] [1_347] [1_376] [1_397] [1_402] [1_426] [1_443] [1_466] [1_476] [1_512] [1_520] [1_571] [1_576] [1_645] SITE_SPECIFIC N6-ACETYLLYSINE 470AD5VY1X
AMINO_ACID_SUBSTITUTION [1_58] [1_75] [1_83] [1_91] [1_98] [1_105] [1_112] [1_120] [1_213] [1_300] [1_366] [1_404] SITE_SPECIFIC THREONINE PHOSPHATE 3L4WX7B1EI
AMINO_ACID_SUBSTITUTION [1_655] [1_659] [1_665] [1_669] [1_672] [1_678] [1_680] [1_686] [1_690] [1_693] SITE_SPECIFIC N,N-DIMETHYLARGININE 63CV1GEK3Y
AMINO_ACID_SUBSTITUTION [1_27] [1_33] [1_40] [1_41] [1_66] [1_144] [1_152] [1_183] [1_205] [1_355] [1_457] [1_459] [1_562] [1_579] [1_590] [1_618] SITE_SPECIFIC DEXFOSFOSERINE VI4F0K069V
Name Property Type Amount Referenced Substance Defining Parameters References
Molecular Formula CHEMICAL
MOL_WEIGHT:NUMBER(CALCULATED) CHEMICAL