36CW | pdb_000036cw

HIV-1 reverse transcriptase (F227C) in complex with DNAddG Aptamer and unincorporated ISL-triphosphate

• PDB DOI: https://doi.org/10.2210/pdb36CW/pdb
• EM Map EMD-77393: EMDB EMDataResource

• Classification: VIRAL PROTEIN
• Organism(s): Human immunodeficiency virus 1, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2026-06-01 Released: 2026-09-02 
• Deposition Author(s): Hecksel, C.W., Walker, S.N., Klein, D.J.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 1.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Allosteric Crosstalk

Hecksel, C.W., Walker, S.N., Raheem, I., Asante-Appiah, E., Calero, G., Diamond, T.L., Gabelli, S.B., Gomez-Llorente, Y., Hayes, R.P., Tummala, S., Vergara, S., Klein, D.J.

(2026) ACS Infect Dis 

• DOI: https://doi.org/10.1021/acsinfecdis.6c00431

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 130.22 kDa 
• Atom Count: 8,200 
• Modeled Residue Count: 938 
• Deposited Residue Count: 1,055 
• Unique protein chains: 2
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Reverse transcriptase/ribonuclease H	A	562	Human immunodeficiency virus 1	Mutation(s): 3  Gene Names: gag-pol EC: 2.7.7.49 (PDB Primary Data), 2.7.7.7 (PDB Primary Data), 3.1.26.13 (PDB Primary Data), 3.1.13.2 (PDB Primary Data)
UniProt
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2)) Explore P04585  Go to UniProtKB:  P04585

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
p51 RT	B	455	Human immunodeficiency virus 1	Mutation(s): 1  Gene Names: gag-pol
UniProt
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2)) Explore P04585  Go to UniProtKB:  P04585

Entity ID: 3
Molecule	Chains	Length	Organism	Image
DNAddG (38-MER)	C [auth F]	38	synthetic construct

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
6FN (Subject of Investigation/LOI)	D [auth A]	2'-deoxy-4'-ethynyl-2-fluoroadenosine 5'-(tetrahydrogen triphosphate) C12 H15 F N5 O12 P3 BUMPFXRZUYYODO-QRPMWFLTSA-N
MG	E [auth A], F [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 1.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	cryoSPARC	4.7

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-09-02 
Deposition Author(s): Hecksel, C.W., Walker, S.N., Klein, D.J.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-09-02
  Type: Initial release