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- PDB-2xz3: BLV TM hairpin -

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Basic information

Entry
Database: PDB / ID: 2xz3
TitleBLV TM hairpin
ComponentsMALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN
KeywordsVIRAL PROTEIN / VIRAL MEMBRANE FUSION / HAIRPIN / CHIMERA
Function / homology
Function and homology information


detection of maltose stimulus / maltose transport complex / carbohydrate transport / carbohydrate transmembrane transporter activity / maltose binding / maltose transport / maltodextrin transmembrane transport / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / ATP-binding cassette (ABC) transporter complex / cell chemotaxis ...detection of maltose stimulus / maltose transport complex / carbohydrate transport / carbohydrate transmembrane transporter activity / maltose binding / maltose transport / maltodextrin transmembrane transport / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / ATP-binding cassette (ABC) transporter complex / cell chemotaxis / outer membrane-bounded periplasmic space / periplasmic space / symbiont entry into host cell / fusion of virus membrane with host plasma membrane / viral envelope / DNA damage response / virion attachment to host cell / host cell plasma membrane / virion membrane / membrane
Similarity search - Function
ENV polyprotein (coat polyprotein) / TLV/ENV coat polyprotein / Helix Hairpins - #210 / Maltose/Cyclodextrin ABC transporter, substrate-binding protein / Solute-binding family 1, conserved site / Bacterial extracellular solute-binding proteins, family 1 signature. / Bacterial extracellular solute-binding protein / Bacterial extracellular solute-binding protein / Periplasmic binding protein-like II / D-Maltodextrin-Binding Protein; domain 2 ...ENV polyprotein (coat polyprotein) / TLV/ENV coat polyprotein / Helix Hairpins - #210 / Maltose/Cyclodextrin ABC transporter, substrate-binding protein / Solute-binding family 1, conserved site / Bacterial extracellular solute-binding proteins, family 1 signature. / Bacterial extracellular solute-binding protein / Bacterial extracellular solute-binding protein / Periplasmic binding protein-like II / D-Maltodextrin-Binding Protein; domain 2 / Helix Hairpins / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
alpha-maltose / Maltodextrin-binding protein / Maltose/maltodextrin-binding periplasmic protein / Env polyprotein
Similarity search - Component
Biological speciesESCHERICHIA COLI (E. coli)
BOVINE LEUKEMIA VIRUS
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.95 Å
AuthorsSchuettelkopf, A.W. / Lamb, D. / Brighty, D.W. / van Aalten, D.M.F.
CitationJournal: Plos Pathog. / Year: 2011
Title: Charge-Surrounded Pockets and Electrostatic Interactions with Small Ions Modulate the Activity of Retroviral Fusion Proteins.
Authors: Lamb, D. / Schuttelkopf, A.W. / Van Aalten, D.M.F. / Brighty, D.W.
History
DepositionNov 22, 2010Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 2, 2011Provider: repository / Type: Initial release
Revision 1.1Dec 28, 2011Group: Database references / Version format compliance
Revision 1.2Mar 12, 2014Group: Source and taxonomy
Revision 1.3Mar 15, 2017Group: Source and taxonomy
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Non-polymer description / Other / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_database_status / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / struct_conn / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.type / _pdbx_database_status.status_code_sf
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Dec 20, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: MALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)51,9649
Polymers51,2141
Non-polymers7508
Water4,990277
1
A: MALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN
hetero molecules

A: MALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN
hetero molecules

A: MALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)155,89327
Polymers153,6423
Non-polymers2,25024
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation3_555-x+y,-x,z1
crystal symmetry operation2_555-y,x-y,z1
Buried area17810 Å2
ΔGint-12.2 kcal/mol
Surface area54270 Å2
MethodPISA
Unit cell
Length a, b, c (Å)107.595, 107.595, 119.170
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number146
Space group name H-MH3
Components on special symmetry positions
IDModelComponents
11A-1495-

CL

21A-2118-

HOH

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Components

#1: Protein MALTOSE ABC TRANSPORTER PERIPLASMIC PROTEIN, ENVELOPE GLYCOPROTEIN


Mass: 51214.047 Da / Num. of mol.: 1 / Fragment: MBP RESIDUES 26-392, ECTODOMAIN, RESIDUES 326-418
Source method: isolated from a genetically manipulated source
Details: INCLUDES MALTOSE BINDING PROTEIN PURIFICATION TAG
Source: (gene. exp.) ESCHERICHIA COLI (E. coli), (gene. exp.) BOVINE LEUKEMIA VIRUS
Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: D8A942, UniProt: Q90M13, UniProt: P0AEX9*PLUS
#2: Polysaccharide alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-maltose


Type: oligosaccharide, Oligosaccharide / Class: Nutrient / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: alpha-maltose
DescriptorTypeProgram
DGlcpa1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1a_1-5]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][a-D-Glcp]{}}LINUCSPDB-CARE
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C2H6O2
#4: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 277 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsSEQUENCE IS PRECEDED BY THE MBP-TAG (27-386) FROM THE EXPRESSION VECTOR, WHICH IS BASED ON UNIPROT ...SEQUENCE IS PRECEDED BY THE MBP-TAG (27-386) FROM THE EXPRESSION VECTOR, WHICH IS BASED ON UNIPROT ENTRY D8A942

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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: 2.62 Å3/Da / Density % sol: 53 % / Description: NONE
Crystal growpH: 5.6
Details: 24.5%(V/V) ISOPROPANOL, 13.5%(V/V) PEG 4000, 0.1M SODIUM CITRATE, PH 5.6

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: BM14 / Wavelength: 0.932
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Apr 11, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.932 Å / Relative weight: 1
ReflectionResolution: 1.95→30 Å / Num. obs: 37151 / % possible obs: 99 % / Observed criterion σ(I): 0 / Redundancy: 3.5 % / Biso Wilson estimate: 34.3 Å2 / Rmerge(I) obs: 0.04 / Net I/σ(I): 23.9
Reflection shellResolution: 1.95→2 Å / Redundancy: 2.9 % / Rmerge(I) obs: 0.57 / Mean I/σ(I) obs: 2.1 / % possible all: 90

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Processing

Software
NameVersionClassification
REFMAC5.5.0088refinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1MG1

1mg1


Resolution: 1.95→25 Å / Cor.coef. Fo:Fc: 0.961 / Cor.coef. Fo:Fc free: 0.939 / SU B: 3.828 / SU ML: 0.111 / Cross valid method: THROUGHOUT / ESU R: 0.17 / ESU R Free: 0.156 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.23693 1855 5 %RANDOM
Rwork0.19221 ---
obs0.19445 35261 100 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 36.976 Å2
Baniso -1Baniso -2Baniso -3
1--0.68 Å2-0.34 Å20 Å2
2---0.68 Å20 Å2
3---1.02 Å2
Refinement stepCycle: LAST / Resolution: 1.95→25 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3573 0 48 277 3898
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0130.0223710
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.3831.9685035
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.5965462
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.51225.509167
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.49615614
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.6941513
X-RAY DIFFRACTIONr_chiral_restr0.0960.2562
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.0212802
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.6961.52292
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.26123682
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.02931417
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it3.2984.51351
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.95→2 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.334 110 -
Rwork0.276 2392 -
obs--100 %

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