Structure of PDB 4kko Chain A

Receptor sequence

>4kkoA (length=554) Species: 11678 (Human immunodeficiency virus type 1 BH10)

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

3D structure

• PDB: 4kko Extension into the entrance channel of HIV-1 reverse transcriptase-Crystallography and enhanced solubility.
• Chain: A
• Resolution: 2.89 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	1RE	A	L100 K101 V106 V179 Y181 Y188 F227 L234 H235 Y318	L102 K103 V108 V181 Y183 Y190 F229 L236 H237 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:4kko, PDBe:4kko, PDBj:4kko
• PDBsum: 4kko
• PubMed: 23899617
• UniProt: P03366|POL_HV1B1 Gag-Pol polyprotein (Gene Name=gag-pol)