1HSG: Crystal structure

Crystal structure at 1.9 Å resolution of human immunodeficiency virus (HIV) II protease complexed with L-735,524, an orally bioavailable inhibitor of the HIV proteases. Determined by X-ray diffraction at 2.0 Å resolution. Released 3 Apr 1996.

Method: X-ray diffraction
Resolution: 2.0 Å
Organism: Human immunodeficiency virus 1
Chains: 2
Atoms: 1,686
Mol. weight: 22.22 kDa
Ligands: MK1
Released: 3 Apr 1996

Explore 1HSG in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1HSG contains 2 α-helices and 18 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 1 helix, 9 β-strands

Element	Residues	Length	Sheet
β-strand	2-3	2	1
β-strand	10-15	6	2
β-strand	18-24	7	2
β-strand	32-34	3	2
β-strand	43-49	7	2
β-strand	52-66	15	2
β-strand	69-78	10	2
β-strand	84-85	2	2
α-helix	87-90	4
β-strand	96-98	3	1

Chain B: 1 helix, 9 β-strands

Element	Residues	Length	Sheet
β-strand	2-3	2	1
β-strand	10-15	6	3
β-strand	18-24	7	3
β-strand	32-33	2	3
β-strand	43-48	6	3
β-strand	53-66	14	3
β-strand	69-77	9	3
β-strand	84-85	2	3
α-helix	87-90	4
β-strand	96-98	3	1

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
HIV-1 protease	A, B	protein	99	Human immunodeficiency virus 1	P03367

Sequence of entity 1 (A, B), FASTA

>1HSG_1 HIV-1 PROTEASE (chains A, B)
PQITLWQRPLVTIKIGGQLKEALLDTGADDTVLEEMSLPGRWKPKMIGGIGGFIKVRQYD
QILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF

Ligands and cofactors

ID	Name	Formula	Copies
MK1	N-[2(R)-hydroxy-1(S)-indanyl]-5-[(2(S)-tertiary butylaminocarbonyl)-4(3-pyridyl…	C36 H47 N5 O4	1

Primary citation

Crystal structure at 1.9-A resolution of human immunodeficiency virus (HIV) II protease complexed with L-735,524, an orally bioavailable inhibitor of the HIV proteases. Chen, Z., Li, Y., Chen, E. et al. J Biol Chem (1994) 269:26344-26348. PubMed

Other PDB entries of the same protein (UniProt P03367), best resolution first:

5YOK 0.85 Å, Structure of HIV-1 Protease in Complex with Inhibitor KNI-1657
3A2O 0.88 Å, Crystal Structure of HIV-1 Protease Complexed with KNI-1689
3FX5 0.93 Å, Structure of HIV-1 Protease in Complex with Potent Inhibitor KNI-272 Determined by High…
3DJK 1.0 Å, Wild Type HIV-1 Protease with potent Antiviral inhibitor GRL-0255A
1NH0 1.03 Å, 1.03 A structure of HIV-1 protease: inhibitor binding inside and outside the active site
3NDX 1.03 Å, HIV-1 Protease Saquinavir:Ritonavir 1:50 complex structure
3BVA 1.05 Å, Cystal structure of HIV-1 Active Site Mutant D25N and p2-NC analog inhibitor
4HE9 1.06 Å, Crystal Structure of HIV-1 protease mutants I54M complexed with inhibitor GRL-0519
3DK1 1.07 Å, Wild Type HIV-1 Protease with potent Antiviral inhibitor GRL-0105A
2QD7 1.11 Å, HIV-1 Protease Mutant V82A with potent Antiviral inhibitor GRL-98065
3TOH 1.12 Å, HIV-1 Protease - Epoxydic Inhibitor Complex (pH 9 - Orthorombic Crystal form P212121)
8FUJ 1.12 Å, HIV-1 wild type protease with GRL-03419A, with N-(2,5-dimethylphenyl)-4-(pyridin-3-yl)pyr…

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1HSG is part of these collections:

Drugs bound to their targets

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