Structure of PDB 4flg Chain A

Receptor sequence

>4flgA (length=99) Species: 11676 (Human immunodeficiency virus 1)

PQITLWKRPLVTIKIGGQLKEALLDTGADDTVIEEMSLPGRWKPKMVGGI
GGFIKVRQYDQIIIEIAGHKAIGTVLVGPTPVNIIGRNLLTQIGATLNF

3D structure

• PDB: 4flg Capturing the Reaction Pathway in Near-Atomic-Resolution Crystal Structures of HIV-1 Protease.
• Chain: A
• Resolution: 1.31 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): D25 T26 G27
• Catalytic site (residue number reindexed from 1): D25 T26 G27
• 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	peptide	A	D25 G27 A28 D29 D30 V47 G48 G49	D25 G27 A28 D29 D30 V47 G48 G49
BS02	peptide	A	D25 I50 V82 I84	D25 I50 V82 I84
BS03	peptide	A	G27 A28 D29 D30 V47 G48 I50	G27 A28 D29 D30 V47 G48 I50
BS04	ILE	A	D25 I84	D25 I84

Gene Ontology

Molecular Function

• GO:0004190 aspartic-type endopeptidase activity

Biological Process

• GO:0006508 proteolysis

External links

• PDB: RCSB:4flg, PDBe:4flg, PDBj:4flg
• PDBsum: 4flg
• PubMed: 22963370
• UniProt: P03367|POL_HV1BR Gag-Pol polyprotein (Gene Name=gag-pol)