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- PDB-1axa: ACTIVE-SITE MOBILITY IN HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 PROTE... -

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Basic information

Entry
Database: PDB / ID: 1axa
TitleACTIVE-SITE MOBILITY IN HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 PROTEASE AS DEMONSTRATED BY CRYSTAL STRUCTURE OF A28S MUTANT
ComponentsHIV-1 PROTEASE
KeywordsASPARTYL PROTEASE / HIV PROTEASE / MUTANT / ASPARTIC PROTEASE / HYDROLASE / ACID PROTEINASE
Function / homology
Function and homology information


HIV-1 retropepsin / : / retroviral ribonuclease H / exoribonuclease H / : / exoribonuclease H activity / host multivesicular body / DNA integration / RNA-directed DNA polymerase / viral genome integration into host DNA ...HIV-1 retropepsin / : / retroviral ribonuclease H / exoribonuclease H / : / exoribonuclease H activity / host multivesicular body / DNA integration / RNA-directed DNA polymerase / viral genome integration into host DNA / viral penetration into host nucleus / establishment of integrated proviral latency / RNA-directed DNA polymerase activity / Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases / RNA-DNA hybrid ribonuclease activity / viral nucleocapsid / DNA recombination / Hydrolases; Acting on ester bonds / DNA-directed DNA polymerase / aspartic-type endopeptidase activity / DNA-directed DNA polymerase activity / symbiont entry into host cell / symbiont-mediated suppression of host gene expression / lipid binding / host cell nucleus / host cell plasma membrane / virion membrane / structural molecule activity / proteolysis / DNA binding / RNA binding / zinc ion binding / membrane
Similarity search - Function
Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral / Integrase, N-terminal zinc-binding domain ...Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral / Integrase, N-terminal zinc-binding domain / Integrase, C-terminal, retroviral / Integrase DNA binding domain profile. / Immunodeficiency lentiviral matrix, N-terminal / gag gene protein p17 (matrix protein) / RNase H / Integrase core domain / Integrase, catalytic core / Integrase catalytic domain profile. / Retroviral nucleocapsid Gag protein p24, C-terminal domain / Gag protein p24 C-terminal domain / Retropepsin-like catalytic domain / Matrix protein, lentiviral and alpha-retroviral, N-terminal / Ribonuclease H domain / RNase H type-1 domain profile. / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase domain / Reverse transcriptase (RT) catalytic domain profile. / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Retrovirus capsid, C-terminal / Retroviral matrix protein / Retrovirus capsid, N-terminal / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Cathepsin D, subunit A; domain 1 / Acid Proteases / Zinc finger, CCHC-type / Zinc finger CCHC-type profile. / Ribonuclease H superfamily / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Aspartic peptidase domain superfamily / Ribonuclease H-like superfamily / Reverse transcriptase/Diguanylate cyclase domain / DNA/RNA polymerase superfamily / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Chem-U0E / Gag-Pol polyprotein
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1
MethodX-RAY DIFFRACTION / DIFFERENCE FOURIER / Resolution: 2 Å
AuthorsHong, L. / Hartsuck, J.A. / Foundling, S. / Ermolieff, J. / Tang, J.
CitationJournal: Protein Sci. / Year: 1998
Title: Active-site mobility in human immunodeficiency virus, type 1, protease as demonstrated by crystal structure of A28S mutant.
Authors: Hong, L. / Hartsuck, J.A. / Foundling, S. / Ermolieff, J. / Tang, J.
History
DepositionOct 13, 1997Processing site: BNL
Revision 1.0Apr 15, 1998Provider: repository / Type: Initial release
Revision 1.1Mar 3, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 2.0Jan 29, 2020Group: Atomic model / Derived calculations / Category: atom_site / struct_conn / Item: _atom_site.label_alt_id
Revision 2.1Nov 3, 2021Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 2.2Feb 7, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: HIV-1 PROTEASE
B: HIV-1 PROTEASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)22,8334
Polymers21,6402
Non-polymers1,1942
Water1,13563
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6220 Å2
ΔGint-9 kcal/mol
Surface area9160 Å2
MethodPISA
Unit cell
Length a, b, c (Å)63.554, 63.554, 83.660
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number169
Space group name H-MP61
Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (-0.49848, -0.8669, 0.00101), (-0.8669, 0.49848, -0.00088), (0.00026, -0.00131, -1)
Vector: 55.7408)

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Components

#1: Protein HIV-1 PROTEASE /


Mass: 10819.756 Da / Num. of mol.: 2 / Mutation: A28S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Genus: Lentivirus / Species (production host): Escherichia coli / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 / References: UniProt: P03366, HIV-1 retropepsin
#2: Chemical ChemComp-U0E / N-[[1-[N-ACETAMIDYL]-[1-CYCLOHEXYLMETHYL-2-HYDROXY-4-ISOPROPYL]-BUT-4-YL]-CARBONYL]-GLUTAMINYL-ARGINYL-AMIDE


Mass: 596.762 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C28H52N8O6
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 63 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.2 Å3/Da / Density % sol: 44 %
Crystal growpH: 6.8 / Details: pH 6.8
Crystal
*PLUS
Crystal grow
*PLUS
Temperature: 20 ℃ / pH: 5.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
14 mg/mlprotease1drop
210 mMsodium acetate1drop
30.5 mMdithiothreitol1drop
45 MU89360E1drop
515 %ammonium sulfate1drop
630 %ammonium sulfate1reservoir

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceWavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: May 1, 1996
RadiationMonochromator: CRYSTAL / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→34 Å / Num. obs: 11025 / % possible obs: 93 % / Observed criterion σ(I): 2 / Redundancy: 4.9 % / Rsym value: 0.064 / Net I/σ(I): 15
Reflection shellResolution: 2→2.2 Å / Redundancy: 2 % / Mean I/σ(I) obs: 3 / Rsym value: 0.25 / % possible all: 76
Reflection
*PLUS
Rmerge(I) obs: 0.064
Reflection shell
*PLUS
% possible obs: 75.9 %

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Processing

Software
NameClassification
TNTrefinement
SAINTdata reduction
SAINTdata scaling
TNTphasing
RefinementMethod to determine structure: DIFFERENCE FOURIER / Resolution: 2→20 Å / Isotropic thermal model: TNT BCORREL / σ(F): 0 / Stereochemistry target values: TNT PROTGEO
RfactorNum. reflection% reflection
Rwork0.194 --
all-11025 -
obs-11025 92.6 %
Solvent computationSolvent model: BABINET / Bsol: 266.2 Å2 / ksol: 0.818 e/Å3
Refinement stepCycle: LAST / Resolution: 2→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1524 0 84 63 1671
Refine LS restraints
Refine-IDTypeDev idealNumberWeight
X-RAY DIFFRACTIONt_bond_d0.01916320.8
X-RAY DIFFRACTIONt_angle_deg3.221931.3
X-RAY DIFFRACTIONt_dihedral_angle_d28.59410
X-RAY DIFFRACTIONt_incorr_chiral_ct0
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes0.015352
X-RAY DIFFRACTIONt_gen_planes0.0162305
X-RAY DIFFRACTIONt_it2.216328
X-RAY DIFFRACTIONt_nbd0.085635
Software
*PLUS
Name: TNT / Version: 5E / Classification: refinement
Refinement
*PLUS
Rfactor all: 0.194
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 37.6 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev idealWeight
X-RAY DIFFRACTIONt_dihedral_angle_d
X-RAY DIFFRACTIONt_dihedral_angle_deg28.50
X-RAY DIFFRACTIONt_planar_d0.0152
X-RAY DIFFRACTIONt_plane_restr0.0165

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