Structure of PDB 4idk Chain A

Receptor sequence

>4idkA (length=556) Species: 11678 (Human immunodeficiency virus type 1 BH10)

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

3D structure

• PDB: 4idk Detecting Allosteric Sites of HIV-1 Reverse Transcriptase by X-ray Crystallographic Fragment Screening.
• Chain: A
• Resolution: 2.1 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	T27	A	L100 K101 K103 Y181 Y188 F227 W229 L234 H235 P236 Y318	L102 K103 K105 Y183 Y190 F229 W231 L236 H237 P238 Y320
BS02	1FE	A	E396 T397 T400 L425 Q428 E430	E398 T399 T402 L427 Q430 E432
BS03	MG	A	D443 D549	D445 D551

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:4idk, PDBe:4idk, PDBj:4idk
• PDBsum: 4idk
• PubMed: 23342998
• UniProt: P03366|POL_HV1B1 Gag-Pol polyprotein (Gene Name=gag-pol)