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- PDB-1ed1: CRYSTAL STRUCTURE OF SIMIAN IMMUNODEFICIENCY VIRUS MATRIX ANTIGEN... -

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Basic information

Entry
Database: PDB / ID: 1ed1
TitleCRYSTAL STRUCTURE OF SIMIAN IMMUNODEFICIENCY VIRUS MATRIX ANTIGEN (SIV MA) AT 100K.
ComponentsGAG POLYPROTEINGroup-specific antigen
KeywordsVIRAL PROTEIN / Trimeric Association
Function / homology
Function and homology information


viral process / HIV-1 retropepsin / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / DNA integration / RNA-directed DNA polymerase / viral genome integration into host DNA / viral penetration into host nucleus / establishment of integrated proviral latency ...viral process / HIV-1 retropepsin / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / 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 / host cell cytoplasm / 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 / host cell nucleus / structural molecule activity / host cell plasma membrane / proteolysis / DNA binding / RNA binding / zinc ion binding / membrane / cytoplasm
Similarity search - Function
Immunodeficiency lentiviruses, gag gene matrix protein p17 / Retroviral nucleocapsid Gag protein p24, N-terminal / gag protein p24 N-terminal 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 ...Immunodeficiency lentiviruses, gag gene matrix protein p17 / Retroviral nucleocapsid Gag protein p24, N-terminal / gag protein p24 N-terminal 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, 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. / DNA polymerase; domain 1 / Peptidase A2A, retrovirus, catalytic / Retrovirus capsid, C-terminal / Retroviral matrix protein / Retrovirus capsid, N-terminal / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / 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 / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
ISOPROPYL ALCOHOL / Gag-Pol polyprotein / Gag polyprotein
Similarity search - Component
Biological speciesSimian immunodeficiency virus - mac
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.1 Å
AuthorsRao, Z. / Belyaev, A. / Fry, E. / Roy, P. / Jones, I.M. / Stuart, D.I.
Citation
Journal: Nature / Year: 1995
Title: Crystal structure of SIV matrix antigen and implications for virus assembly.
Authors: Rao, Z. / Belyaev, A.S. / Fry, E. / Roy, P. / Jones, I.M. / Stuart, D.I.
#1: Journal: J.Mol.Biol. / Year: 1994
Title: Crystallization and Preliminary X-ray Investigation of Recombinant Simian Immunodeficiency Virus Matrix Antigen
Authors: Belyaev, A. / Stuart, D. / Sutton, G. / Roy, P.
History
DepositionJan 26, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 16, 2000Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 7, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: GAG POLYPROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)15,0433
Polymers14,9231
Non-polymers1202
Water1,76598
1
A: GAG POLYPROTEIN
hetero molecules

A: GAG POLYPROTEIN
hetero molecules

A: GAG POLYPROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,1309
Polymers44,7703
Non-polymers3616
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-y+1,x-y,z1
crystal symmetry operation3_665-x+y+1,-x+1,z1
Unit cell
Length a, b, c (Å)113.300, 113.300, 31.900
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number146
Space group name H-MH3
DetailsThe biological assembly may be represented by the trimeric association of molecules within the crystal.

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Components

#1: Protein GAG POLYPROTEIN / Group-specific antigen / SIV MA


Mass: 14923.270 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: SIV MATRIX ANTIGEN / Source: (gene. exp.) Simian immunodeficiency virus - mac / Genus: Lentivirus / Species: Simian immunodeficiency virus / Strain: MAC BK28 / Gene: GAG / Plasmid: PULB5002 / Production host: unidentified baculovirus / References: UniProt: Q03859, UniProt: P05897*PLUS
#2: Chemical ChemComp-IPA / ISOPROPYL ALCOHOL / 2-PROPANOL / Isopropyl alcohol


Mass: 60.095 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O / Comment: alkaloid*YM
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 98 / 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: 2.64 Å3/Da / Density % sol: 53.4 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 8
Details: PEG 8000, isopropanol, Tris-HCL, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K
Crystal grow
*PLUS
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
15 mg/mlprotein1drop
29 %PEG36001drop
37.5 %isopropanol1drop
425 mMTris-HCl1drop
525 %(w/v)PEG80001reservoir
615 %(v/v)isopropanol1reservoir
750 mMTris-HCl1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SRS / Beamline: PX7.2 / Wavelength: 1.488
DetectorType: MARRESEARCH / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.488 Å / Relative weight: 1
ReflectionResolution: 2.1→30 Å / Num. all: 8719 / Num. obs: 8719 / % possible obs: 97.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 5 % / Rmerge(I) obs: 0.059
Reflection
*PLUS
Num. measured all: 43654

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Processing

Software
NameVersionClassification
MLPHAREphasing
X-PLOR3.1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementResolution: 2.1→30 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.243 482 -5% of the data set
Rwork0.18 ---
all-8719 --
obs-8719 97.9 %-
Refinement stepCycle: LAST / Resolution: 2.1→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms894 0 0 106 1000
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_angle_deg1.4
X-RAY DIFFRACTIONx_bond_d0.01
Software
*PLUS
Name: X-PLOR / Version: 3.1 / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.1 Å / Lowest resolution: 30 Å / σ(F): 0 / % reflection Rfree: 5 % / Rfactor obs: 0.18 / Rfactor Rwork: 0.18
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_deg / Dev ideal: 1.4

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