4li0

Crystal structure of GDP-bound Rab8:GRAB

Method: X-RAY DIFFRACTION D_max: 120.4 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Ras-related protein Rab-8A

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain A； UniProt 1–184	Fragment：unp residues 1-184	Guanine nucleotide exchange factor for Rab-3A × 2 （Q8TBN0） GDP GUANOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5.3；293 K；1.6 M ammonium sulphate and sodium acetate. cryo solution containing 20% glycerol in the reservoir solution, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.290
2	Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain B； UniProt 1–184	Fragment：unp residues 1-184	Guanine nucleotide exchange factor for Rab-3A × 2 （Q8TBN0） GDP GUANOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5.3；293 K；1.6 M ammonium sulphate and sodium acetate. cryo solution containing 20% glycerol in the reservoir solution, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.290

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 4LI0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
3QBT Crystal structure of OCRL1 540-678 in complex with Rab8a:GppNHp Deposited 2011-01-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；20% (w/v) PEG 4000, 20% (v/v) glycerol, 0.16 M ammonium sulphate, 0.1 M sodium acetate, pH 4.6, vapor diffusion, hanging drop, temperature 293K	Resolution 2.00 Å R-free 0.241
3QBT Crystal structure of OCRL1 540-678 in complex with Rab8a:GppNHp Deposited 2011-01-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain C 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；20% (w/v) PEG 4000, 20% (v/v) glycerol, 0.16 M ammonium sulphate, 0.1 M sodium acetate, pH 4.6, vapor diffusion, hanging drop, temperature 293K	Resolution 2.00 Å R-free 0.241
3QBT Crystal structure of OCRL1 540-678 in complex with Rab8a:GppNHp Deposited 2011-01-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain E 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；20% (w/v) PEG 4000, 20% (v/v) glycerol, 0.16 M ammonium sulphate, 0.1 M sodium acetate, pH 4.6, vapor diffusion, hanging drop, temperature 293K	Resolution 2.00 Å R-free 0.241
3QBT Crystal structure of OCRL1 540-678 in complex with Rab8a:GppNHp Deposited 2011-01-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain G 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；20% (w/v) PEG 4000, 20% (v/v) glycerol, 0.16 M ammonium sulphate, 0.1 M sodium acetate, pH 4.6, vapor diffusion, hanging drop, temperature 293K	Resolution 2.00 Å R-free 0.241
3TNF LidA from Legionella in complex with active Rab8a Deposited 2011-09-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；293 K；50% (v/v) MPD , 0.1 M sodium cacodylate pH 5.6, 10 mM spermidine, vapor diffusion, hanging drop, temperature 293K	Resolution 2.50 Å R-free 0.275
4LHV Crystal structure of Rab8 in its inactive GDP-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；All crystals were obtained by mixing 1 ul protein and 1 ul reservoir solution. Crystals of Rab8a6-176:GDP were obtained by mixing of 1 ul protein (20 mg/ml, buffer: 25 mM HEPES pH 7.5, 40 mM NaCl, 1 mM MgCl2, 10 M GDP and 5 mM beta-mercaptoethanol) with 1 ul of reservoir consisting of 16% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES. The crystal was protected with cryo solution containing 30% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES pH 7.0 before data collection, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.95 Å R-free 0.244
4LHV Crystal structure of Rab8 in its inactive GDP-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；All crystals were obtained by mixing 1 ul protein and 1 ul reservoir solution. Crystals of Rab8a6-176:GDP were obtained by mixing of 1 ul protein (20 mg/ml, buffer: 25 mM HEPES pH 7.5, 40 mM NaCl, 1 mM MgCl2, 10 M GDP and 5 mM beta-mercaptoethanol) with 1 ul of reservoir consisting of 16% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES. The crystal was protected with cryo solution containing 30% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES pH 7.0 before data collection, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.95 Å R-free 0.244
4LHV Crystal structure of Rab8 in its inactive GDP-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；All crystals were obtained by mixing 1 ul protein and 1 ul reservoir solution. Crystals of Rab8a6-176:GDP were obtained by mixing of 1 ul protein (20 mg/ml, buffer: 25 mM HEPES pH 7.5, 40 mM NaCl, 1 mM MgCl2, 10 M GDP and 5 mM beta-mercaptoethanol) with 1 ul of reservoir consisting of 16% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES. The crystal was protected with cryo solution containing 30% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES pH 7.0 before data collection, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.95 Å R-free 0.244
4LHV Crystal structure of Rab8 in its inactive GDP-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；All crystals were obtained by mixing 1 ul protein and 1 ul reservoir solution. Crystals of Rab8a6-176:GDP were obtained by mixing of 1 ul protein (20 mg/ml, buffer: 25 mM HEPES pH 7.5, 40 mM NaCl, 1 mM MgCl2, 10 M GDP and 5 mM beta-mercaptoethanol) with 1 ul of reservoir consisting of 16% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES. The crystal was protected with cryo solution containing 30% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES pH 7.0 before data collection, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.95 Å R-free 0.244
4LHV Crystal structure of Rab8 in its inactive GDP-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain E 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；All crystals were obtained by mixing 1 ul protein and 1 ul reservoir solution. Crystals of Rab8a6-176:GDP were obtained by mixing of 1 ul protein (20 mg/ml, buffer: 25 mM HEPES pH 7.5, 40 mM NaCl, 1 mM MgCl2, 10 M GDP and 5 mM beta-mercaptoethanol) with 1 ul of reservoir consisting of 16% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES. The crystal was protected with cryo solution containing 30% (w/v) PEG4000, 0.1 M CaAc2, 0.1 M HEPES pH 7.0 before data collection, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.95 Å R-free 0.244
4LHW Crystal structure of Rab8 in its active GppNHp-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；Rab8a6-176:GppNHp (15 mg/ml; buffer: 25 mM HEPES, 40 mM NaCl, 1 mM MgCl2, 10 M GppNHp and 5 mM -mercaptoethanol) crystals were produced in 15% (w/v) PEG8000, 7.5 %(v/v) MPD, 0.1 M HEPES, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.55 Å R-free 0.183
4LHW Crystal structure of Rab8 in its active GppNHp-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；Rab8a6-176:GppNHp (15 mg/ml; buffer: 25 mM HEPES, 40 mM NaCl, 1 mM MgCl2, 10 M GppNHp and 5 mM -mercaptoethanol) crystals were produced in 15% (w/v) PEG8000, 7.5 %(v/v) MPD, 0.1 M HEPES, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.55 Å R-free 0.183
4LHW Crystal structure of Rab8 in its active GppNHp-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；Rab8a6-176:GppNHp (15 mg/ml; buffer: 25 mM HEPES, 40 mM NaCl, 1 mM MgCl2, 10 M GppNHp and 5 mM -mercaptoethanol) crystals were produced in 15% (w/v) PEG8000, 7.5 %(v/v) MPD, 0.1 M HEPES, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.55 Å R-free 0.183
4LHW Crystal structure of Rab8 in its active GppNHp-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；Rab8a6-176:GppNHp (15 mg/ml; buffer: 25 mM HEPES, 40 mM NaCl, 1 mM MgCl2, 10 M GppNHp and 5 mM -mercaptoethanol) crystals were produced in 15% (w/v) PEG8000, 7.5 %(v/v) MPD, 0.1 M HEPES, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.55 Å R-free 0.183
4LHW Crystal structure of Rab8 in its active GppNHp-bound form Deposited 2013-07-01	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain E 6–176（171 aa） Fragment：unp residues 6-176	Not recorded	MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；Rab8a6-176:GppNHp (15 mg/ml; buffer: 25 mM HEPES, 40 mM NaCl, 1 mM MgCl2, 10 M GppNHp and 5 mM -mercaptoethanol) crystals were produced in 15% (w/v) PEG8000, 7.5 %(v/v) MPD, 0.1 M HEPES, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.55 Å R-free 0.183
4LHX Crystal structure of nucleotide-free Rab8:Rabin8 Deposited 2013-07-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES. cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES), pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.05 Å R-free 0.300
4LHX Crystal structure of nucleotide-free Rab8:Rabin8 Deposited 2013-07-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES. cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES), pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.05 Å R-free 0.300
4LHY Crystal structure of GDP-bound Rab8:Rabin8 Deposited 2013-07-01	Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；Nucleotide-free Rab8a1 184:Rabin8157-232 was crystallized in 18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6. Before data collection, the complex crystal was protected with cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6). In order to produce nucleotide-bound forms of Rab8:Rabin8 complexes, the nucleotide-free Rab8:Rabin8 crystals were soaked with cryo solution containing 30 % (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6 and 1 mM respective nucleotide GDP/GTP for one hour at 4 C, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.10 Å R-free 0.310
4LHY Crystal structure of GDP-bound Rab8:Rabin8 Deposited 2013-07-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	GDP GUANOSINE-5'-DIPHOSPHATE × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；Nucleotide-free Rab8a1 184:Rabin8157-232 was crystallized in 18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6. Before data collection, the complex crystal was protected with cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6). In order to produce nucleotide-bound forms of Rab8:Rabin8 complexes, the nucleotide-free Rab8:Rabin8 crystals were soaked with cryo solution containing 30 % (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6 and 1 mM respective nucleotide GDP/GTP for one hour at 4 C, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.10 Å R-free 0.310
4LHZ Crystal structure of GTP-bound Rab8:Rabin8 Deposited 2013-07-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	GTP GUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；Nucleotide-free Rab8a1 184:Rabin8157-232 was crystallized in 18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6. Before data collection, the complex crystal was protected with cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6). In order to produce nucleotide-bound forms of Rab8:Rabin8 complexes, the nucleotide-free Rab8:Rabin8 crystals were soaked with cryo solution containing 30 % (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6 and 1 mM respective nucleotide GDP/GTP for one hours at 278 K, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.20 Å R-free 0.309
4LHZ Crystal structure of GTP-bound Rab8:Rabin8 Deposited 2013-07-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–184（184 aa） Fragment：unp residues 1-184	Not recorded	GTP GUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；Nucleotide-free Rab8a1 184:Rabin8157-232 was crystallized in 18% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6. Before data collection, the complex crystal was protected with cryo solution (30% (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6). In order to produce nucleotide-bound forms of Rab8:Rabin8 complexes, the nucleotide-free Rab8:Rabin8 crystals were soaked with cryo solution containing 30 % (w/v) PEG3350, 0.1 M Li2SO4, 0.1 M MES pH 6.6 and 1 mM respective nucleotide GDP/GTP for one hours at 278 K, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.20 Å R-free 0.309
5SZI Structure of human Rab8a in complex with the bMERB domain of Mical-cL Deposited 2016-08-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–207（207 aa）	Not recorded	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.1M bis tris propane 0.2M tri sodium citrate 20% PEG 3350	Resolution 2.85 Å R-free 0.288
6RIR Crystal structure of phosphorylated Rab8a in complex with the Rab-binding domain of RILPL2 Deposited 2019-04-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–181（181 aa） Chain B 1–181（181 aa）	Mutation：Q67L Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：Q67L Non-standard monomer：Yes (specific site not provided by mmCIF)	GTP GUANOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；290 K；8% PEG 8K 100mM Na HEPES	Resolution 1.77 Å R-free 0.210
6SQ2 Structure of a phosphomimetic switch 2 variant of Rab8a in complex with the phospho-Rab binding domain of RILPL2 Deposited 2019-09-03	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–181（181 aa） Chain B 1–181（181 aa）	Mutation：Q67L, T72E Mutation：Q67L, T72E	GTP GUANOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；298 K；100mM HEPES 10% PEG 4,000 10% 2-propanol	Resolution 1.68 Å R-free 0.202
6STF Human Rab8a phosphorylated at Ser111 in complex with GDP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1 M Sodium Cacodylate, 0.2 M MgAc2, 20% PEG8000	Resolution 2.40 Å R-free 0.262
6STF Human Rab8a phosphorylated at Ser111 in complex with GDP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1 M Sodium Cacodylate, 0.2 M MgAc2, 20% PEG8000	Resolution 2.40 Å R-free 0.262
6STF Human Rab8a phosphorylated at Ser111 in complex with GDP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1 M Sodium Cacodylate, 0.2 M MgAc2, 20% PEG8000	Resolution 2.40 Å R-free 0.262
6STF Human Rab8a phosphorylated at Ser111 in complex with GDP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1 M Sodium Cacodylate, 0.2 M MgAc2, 20% PEG8000	Resolution 2.40 Å R-free 0.262
6STF Human Rab8a phosphorylated at Ser111 in complex with GDP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain E 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1 M Sodium Cacodylate, 0.2 M MgAc2, 20% PEG8000	Resolution 2.40 Å R-free 0.262
6STG Human Rab8a phosphorylated at Ser111 in complex with GPPNP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.1 M Tris-HCl, 30% PEG300	Resolution 2.50 Å R-free 0.278
6STG Human Rab8a phosphorylated at Ser111 in complex with GPPNP Deposited 2019-09-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 6–176（171 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.1 M Tris-HCl, 30% PEG300	Resolution 2.50 Å R-free 0.278
6WHE Structure of phosphomimetic Rab8a GTPase (T72E) in the GTP-bound state Deposited 2020-04-08	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–181（181 aa）	Mutation：Q67L/T72E	GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 7；289 K；20% PEG3350, 0.1M Hepes pH 7	Resolution 1.73 Å R-free 0.230
6WHE Structure of phosphomimetic Rab8a GTPase (T72E) in the GTP-bound state Deposited 2020-04-08	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–181（181 aa）	Mutation：Q67L/T72E	GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 7；289 K；20% PEG3350, 0.1M Hepes pH 7	Resolution 1.73 Å R-free 0.230
6ZSI The mechanism of activation of the actin binding protein EHBP1 by Rab8 family members. Deposited 2020-07-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–176（176 aa）	Not recorded	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 PEG DI(HYDROXYETHYL)ETHER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；293 K；0.1 M Mes pH 6.0 5% w/v PEG 3000 30% v/v PEG 200	Resolution 1.91 Å R-free 0.267
6ZSI The mechanism of activation of the actin binding protein EHBP1 by Rab8 family members. Deposited 2020-07-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–176（176 aa）	Not recorded	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 PEG DI(HYDROXYETHYL)ETHER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；293 K；0.1 M Mes pH 6.0 5% w/v PEG 3000 30% v/v PEG 200	Resolution 1.91 Å R-free 0.267
6ZSJ The mechanism of activation of the actin binding protein EHBP1 by Rab8 family members. Deposited 2020-07-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–176（176 aa）	Not recorded	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1M Mes pH 6.5 10 % (w/v) Peg-MME5000 12% (v/v) 1-propanol	Resolution 2.00 Å R-free 0.291
6ZSJ The mechanism of activation of the actin binding protein EHBP1 by Rab8 family members. Deposited 2020-07-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–176（176 aa）	Not recorded	GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.1M Mes pH 6.5 10 % (w/v) Peg-MME5000 12% (v/v) 1-propanol	Resolution 2.00 Å R-free 0.291
7BWT SopD-Rab8 complex structure Deposited 2020-04-16	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 2–183（182 aa）	Not recorded	PEG DI(HYDROXYETHYL)ETHER × 2 GOL GLYCEROL × 9 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.05M Sodium cacodylate trihydrate pH 6.5, 0.2 M MgCl2, 11.5% PEG4000	Resolution 2.30 Å R-free 0.215
7LWB Crystal Structure of phospho-Rab8a with the RH2 domain (117-165) of RILPL2 Deposited 2021-02-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–181（181 aa）	Mutation：Q67L Non-standard monomer：Yes (specific site not provided by mmCIF)	GTP GUANOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 7.5；288 K；150mM DL-Malic acid, 20% PEG3350	Resolution 1.90 Å R-free 0.267
9IKQ Crystal structure of OPTN LZD in complex with GTP-bound Rab8a(Q67L) Deposited 2024-06-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–181（181 aa） Chain B 1–181（181 aa）	Mutation：Q67L Mutation：Q67L	GTP GUANOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 EDO 1,2-ETHANEDIOL × 6 GOL GLYCEROL × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；289 K；0.1 M BIS-TRIS pH 6.5, 16% (w/v) PEG 10000	Resolution 1.93 Å R-free 0.218
9M0O Crystal structure of OPTN 138-170 in complex with GTP-bound RAB8A1-176 (Q67L) Deposited 2025-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 1–176（176 aa）	Mutation：Q67L	MG MAGNESIUM ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 2 GOL GLYCEROL × 6 ACT ACETATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.05 M Imidazole pH 6.5, 0.5 M Sodium acetate trihydrate	Resolution 1.83 Å R-free 0.222

19 other PDB entries and 41 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	RAB8A_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–186； UniProt 1–184 Author chain B； PDBConstruct 3–186； UniProt 1–184

Guanine nucleotide exchange factor for Rab-3A

Homo sapiens

UniProt Q8TBN0

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain E； UniProt 73–154 Chain F； UniProt 73–154	Fragment：unp residues 73-154	Ras-related protein Rab-8A × 1 （P61006） GDP GUANOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5.3；293 K；1.6 M ammonium sulphate and sodium acetate. cryo solution containing 20% glycerol in the reservoir solution, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.290
2	Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain C； UniProt 73–154 Chain D； UniProt 73–154	Fragment：unp residues 73-154	Ras-related protein Rab-8A × 1 （P61006） GDP GUANOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5.3；293 K；1.6 M ammonium sulphate and sodium acetate. cryo solution containing 20% glycerol in the reservoir solution, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.290

Other States of the Same Protein in the Database

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence

UniProt name	R3GEF_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 3–84； UniProt 73–154 Author chain D； PDBConstruct 3–84； UniProt 73–154 Author chain E； PDBConstruct 3–84； UniProt 73–154 Author chain F； PDBConstruct 3–84； UniProt 73–154

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	4li0
Deposition date deposition_date	2013-07-01
Structure title title	Crystal structure of GDP-bound Rab8:GRAB
Keywords keywords	Small GTPase, Guanine Nucleotide Exchange Factor, PROTEIN TRANSPORT; PROTEIN TRANSPORT
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	35.93 Å
Radius of gyration Rg (electron density) rg_electron	35.64 Å
Forward intensity I(0) i0	81357500.00
Molecular weight molecular_weight	69376.0 kDa
Excluded volume excluded_volume	85962 Å³
Envelope volume envelope_volume	131960 Å³
Hydration-shell volume shell_volume	32220 Å³
Envelope diameter envelope_diameter	128.6 Å
Shell Rg shell_rg	39.73 Å
Envelope Rg envelope_rg	35.94 Å
Shape Rg shape_rg	35.65 Å
Total Rg total_rg	35.96 Å
Total atoms total_atoms	4863
Residues n_residues	613
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	120.4 Å
Rg (real space) rg_real	36.01 Å
Rg uncertainty (real space) rg_real_error	1.30 Å
I(0) (real space) i0_real	8.1360e+07
I(0) uncertainty (real space) i0_real_error	1.4110e+06
Rg (reciprocal space) rg_reciprocal	35.97 Å
I(0) (reciprocal space) i0_reciprocal	81350000.0000
Solution quality estimate total_estimate	0.8739
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	30.1 Å
Skewness Skewness skewness	0.221
Kurtosis Kurtosis kurtosis	-0.761
Angular range angular_range	— – 0.2200 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	5603000.0000
Real-space data points n_real_points	45
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.861; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.823; Smooth: 0.950

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	Ras-related protein Rab-8A
Molecular weight formula_weight	21259.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	4863

GHMAKTYDYLFKLLLIGDSGVGKTCVLFRFSEDAFNSTFISTIGIDFKIRTIELDGKRIKLQIWDTAGQERFRTITTAYYRGAMGIMLVYDITNEKSFDNIRNWIRNIEEHASADVEKMILGNKCDVNDKRQVSKERGEKLALDYGIKFMETSAKANINVENAFFTLARDIKAKMDKKLEGNSPQG

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Guanine nucleotide exchange factor for Rab-3A
Molecular weight formula_weight	9800.1 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,D,E,F

GPEKGSEFLKEELHRAQKELKLKDEECERLSKVREQLEQELEELTASLFEEAHKMVREANMKQAASEKQLKEARGKIDMLQAEV

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	GUANOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	443.2 kDa
Source method src_method	syn
Copy count entity_count	2

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7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id	4li0A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	4li0B00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	4li0C00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	4880 —

Domain ID domain_id	4li0D00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	4880 —

Domain ID domain_id	4li0E00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	4880 —

Domain ID domain_id	4li0F00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	4880 —

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8. Citations (1)

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Unit-cell length a length_a	110.930 Å
Unit-cell length b length_b	160.380 Å
Unit-cell length c length_c	166.510 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	32

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	3.300 Å
Low-resolution limit resolution_low	48.210 Å
R factor r_factor	0.2464
R_work r_work	0.2442
R_free r_free	0.2896

fit	/app/data/saxs_computation/li/4li0/4li0.fit
pddf	/app/data/pr_computation/li/4li0/4li0.pr.out
profile	/app/data/saxs_computation/li/4li0/4li0.dat

Crystal structure of GDP-bound Rab8:GRAB

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ras-related protein Rab-8A

State in the Current Structure

Other States of the Same Protein in the Database

Guanine nucleotide exchange factor for Rab-3A

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 non-polymer

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)