9ASO

Human Drosha and DGCR8 in complex with Pri-let-7a2

• PDB DOI: https://doi.org/10.2210/pdb9ASO/pdb
• EM Map EMD-43821: EMDB EMDataResource
• NAKB: 9ASO

• Classification: RNA BINDING PROTEIN/RNA
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda, Escherichia coli
• Mutation(s): No 


• Deposited: 2024-02-26 Released: 2024-09-04 
• Deposition Author(s): Garg, A., Joshua-Tor, L.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI), National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

RNAi_protein_a2

Garg, A., Joshua-Tor, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 368.91 kDa 
• Atom Count: 9,426 
• Modelled Residue Count: 1,037 
• Deposited Residue Count: 3,010 
• Unique protein chains: 2
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Isoform 4 of Drosha	A	1,337	Homo sapiens	Mutation(s): 0  Gene Names: DROSHA, RN3, RNASE3L, RNASEN EC: 3.1.26.3
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NRR4 (Homo sapiens) Explore Q9NRR4  Go to UniProtKB:  Q9NRR4
PHAROS:  Q9NRR4 GTEx:  ENSG00000113360

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Microprocessor complex subunit DGCR8	B, C	773	Homo sapiens	Mutation(s): 0  Gene Names: DGCR8, C22orf12, DGCRK6, LP4941
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WYQ5 (Homo sapiens) Explore Q8WYQ5  Go to UniProtKB:  Q8WYQ5
PHAROS:  Q8WYQ5 GTEx:  ENSG00000128191

Entity ID: 3
Molecule	Chains	Length	Organism	Image
Pri-let-7a2	D [auth E]	127	Homo sapiens

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	E [auth A], F [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CA (Subject of Investigation/LOI)	G [auth A], H [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20_4459:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-04 
Deposition Author(s): Garg, A., Joshua-Tor, L.

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Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	R01 GM114147

Revision History  

• Version 1.0: 2024-09-04
  Type: Initial release