Structure of PDB 8dx3 Chain A

Receptor sequence

>8dx3A (length=556) Species: 11676 (Human immunodeficiency virus 1)

MVPISPIETVPVKLKPGMDGPKVKQWPLTEEKIKALVEICTEMEKEGKIS
KIGPENPYNTPVFAIKKKDSTKWRKLVDFRELNKRTQDFWEVQLGIPHPA
GLKKKKSVTVLDVGDAYFSVPLDEDFRKYTAFTIPSINNETPGIRYQYNV
LPQGWKGSPAIFQSSMTKILEPFAAQNPDIVIYQYMDDLYVGSDLEIGQH
RTKIEELRQHLLRWGLTTPDKKHQKEPPFLWMGYELHPDKWTVQPIVLPE
KDSWTVNDIQKLVGKLNWASQIYPGIKVRQLSKLLRGTKALTEVIPLTEE
AELELAENREILKEPVHGVYYDPSKDLIAEIQKQGQGQWTYQIYQEPFKN
LKTGKYARMRGAHTNDVKQLTEAVQKITTESIVIWGKTPKFKLPIQKETW
ETWWTEYWQATWIPEWEFVNTPPLVKLWYQLEKEPIVGAETFYVDGAANR
ETKLGKAGYVTNKGRQKVVPLTNTTNQKTELQAIYLALQDSGLEVNIVTD
SQYALGIIQAQPDKSESELVNQIIEQLIKKEKVYLAWVPAHKGIGGNEQV
DKLVSA

3D structure

• PDB: 8dx3 Halo Library, a Tool for Rapid Identification of Ligand Binding Sites on Proteins Using Crystallographic Fragment Screening.
• Chain: A
• Resolution: 2.06 Å

Enzymatic activity

• Enzyme Commision number: 2.7.7.-
  2.7.7.49: RNA-directed DNA polymerase.
  2.7.7.7: DNA-directed DNA polymerase.
  3.1.-.-
  3.1.13.2: exoribonuclease H.
  3.1.26.13: retroviral ribonuclease H.
  3.4.23.16: HIV-1 retropepsin.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	4JH	A	E233 H235 W239 T240	E235 H237 W241 T242
BS02	T27	A	L100 K101 K103 Y181 Y188 F227 W229 L234 H235 P236 Y318	L102 K103 K105 Y183 Y190 F229 W231 L236 H237 P238 Y320

Gene Ontology

Molecular Function

• GO:0003676 nucleic acid binding
• GO:0003964 RNA-directed DNA polymerase activity
• GO:0004523 RNA-DNA hybrid ribonuclease activity

Biological Process

• GO:0006278 RNA-templated DNA biosynthetic process

External links

• PDB: RCSB:8dx3, PDBe:8dx3, PDBj:8dx3
• PDBsum: 8dx3
• PubMed: 37115705
• UniProt: P03366|POL_HV1B1 Gag-Pol polyprotein (Gene Name=gag-pol)