4NGB: Endoribonuclease Dicer

Structure of human Dicer Platform-PAZ-Connector Helix cassette in complex with 12-mer siRNA having UU-3' ends (2.25 Angstrom resolution). Determined by X-ray diffraction at 2.25 Å resolution. Released 5 Mar 2014.

Method
X-ray diffraction
Resolution
2.25 Å
Organism
Homo sapiens
Chains
2
Atoms
2,678
Mol. weight
38.72 kDa
Released
5 Mar 2014

Explore 4NGB in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4NGB contains 17 α-helices and 13 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 17 helices, 13 β-strands

ElementResiduesLengthSheet
β-strand758-770131
α-helix771-7722
α-helix773-7753
α-helix780-7823
α-helix785-7873
β-strand791-79661
α-helix799-8024
β-strand806-81051
β-strand813-826141
α-helix830-84213
α-helix843-8475
β-strand867-87371
β-strand880-88231
α-helix884-8929
α-helix899-9013
α-helix915-9184
β-strand921-92442
α-helix932-9343
β-strand935-94172
β-strand94913
α-helix9501
β-strand95713
α-helix958-9669
β-strand977-98262
α-helix1006-102015
β-strand1022-102322
α-helix1025-10273
β-strand1028-103032
α-helix1035-10417
α-helix1044-10529

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Endoribonuclease DicerAprotein302Homo sapiensQ9UPY3 (AlphaFold model)
5'-r(*gp*cp*gp*ap*ap*up*up*cp*gp*cp*up*u)-3'BRNA12
Sequence of entity 1 (A), FASTA
>4NGB_1 Endoribonuclease Dicer (chains A)
SDQPCYLYVIGMVLTTPLPDELNFRRRKLYPPEDTTRCFGILTAKPIPQIPHFPVYTRSG
EVTISIELAASGFMLSLQMLELITRLHQYIFSHILRLEKPALEFKPTDADSAYCVLPLNV
VNDSSTLDIDFKFMEDIEKSEARIGIPSTKYTKETPFVFKLEDYQDAVIIPRYRNFDQPH
RFYVADVYTDLTPLSKFPSPEYETFAEYYKTKYNLDLTNLNQPLLDVDHTSSRLNLLTPR
HLNQKGKALPLSSAEKRKAKWESLQNKQILVPELCAIHPIPASLWRKAVCLPSILYRLHC
LL
Sequence of entity 2 (B), FASTA
>4NGB_2 5'-R(*GP*CP*GP*AP*AP*UP*UP*CP*GP*CP*UP*U)-3' (chains B)
GCGAAUUCGCUU

Primary citation

A Phosphate-Binding Pocket within the Platform-PAZ-Connector Helix Cassette of Human Dicer. Tian, Y., Simanshu, D.K., Ma, J.B. et al. Mol Cell (2014) 53:606-616. DOI 10.1016/j.molcel.2014.01.003 · PubMed

Other PDB entries of the same protein (UniProt Q9UPY3 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 4NGB directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.