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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P63045 New Search
23PDB entries
29Biological assembly
34chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
1KIL Three-dimensional structure of the complexin/SNARE complex Deposited 2001-12-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 28–92（65 aa） Fragment：SNARE motif (29-93)
Not recorded MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；27%(v/v) Iso-Propanol, 200mM MgCl2, 100mM Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.305
1N7S High Resolution Structure of a Truncated Neuronal SNARE Complex Deposited 2002-11-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 28–89（62 aa） Fragment：SBc
Not recorded CA CALCIUM ION × 3 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；277 K；MPD, CaCl2, MES, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 4.0K
Resolution 1.45 Å R-free 0.224
1SFC NEURONAL SYNAPTIC FUSION COMPLEX Deposited 1998-08-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–96（96 aa） Fragment：PROTEOLYTICALLY PROTECTED FRAGMENT
Not recorded SR STRONTIUM ION × 6 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；35% MPD, 5% PEG350(MME), 25MM TRIS PH 7.0,. 70MM SRCL2, 250MM UREA, 7MM SARKOSYL
Resolution 2.40 Å R-free 0.303
1SFC NEURONAL SYNAPTIC FUSION COMPLEX Deposited 1998-08-24 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 1–96（96 aa） Fragment：PROTEOLYTICALLY PROTECTED FRAGMENT
Not recorded SR STRONTIUM ION × 5 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；35% MPD, 5% PEG350(MME), 25MM TRIS PH 7.0,. 70MM SRCL2, 250MM UREA, 7MM SARKOSYL
Resolution 2.40 Å R-free 0.303
1SFC NEURONAL SYNAPTIC FUSION COMPLEX Deposited 1998-08-24 Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain I 1–96（96 aa） Fragment：PROTEOLYTICALLY PROTECTED FRAGMENT
Not recorded SR STRONTIUM ION × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；35% MPD, 5% PEG350(MME), 25MM TRIS PH 7.0,. 70MM SRCL2, 250MM UREA, 7MM SARKOSYL
Resolution 2.40 Å R-free 0.303
2KOG lipid-bound synaptobrevin solution NMR structure Deposited 2009-09-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–116（116 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6；318 K；Ionic strength (raw mmCIF value) 150；Pressure ambient
NMR sample composition 1 mM [U-99% 13C; U-99% 15N] synaptobrevin-1, 200 mM DPC-2, 20 mM MES-3, 150 mM NaCl-4, 5 mM DTT-5, 1 mM EDTA-6, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
2N1T Dynamic binding mode of a synaptotagmin-1-SNARE complex in solution Deposited 2015-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 25–93（69 aa） Fragment：UNP residues 25-93
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.4；298 K；Pressure ambient
NMR sample composition 30 uM [U-100% 13C; U-100% 15N] protein, 25 mM Tris-HCl, 125 mM KSCN, 1 mM CaCl2, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
3HD7 HELICAL EXTENSION OF THE NEURONAL SNARE COMPLEX INTO THE MEMBRANE, spacegroup C 1 2 1 Deposited 2009-05-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 30–116（87 aa） Fragment：C-terminal fragment, UNP residues 30-116
Not recorded GGG glycylglycylglycine × 2 SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.3；293 K；29% PEG 400, 0.1M HEPES, 0.2M lithium sulfate, 0.1M sodium chloride, 0.03M glycylglycylglycine, pH 7.3, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.40 Å R-free 0.271
3HD7 HELICAL EXTENSION OF THE NEURONAL SNARE COMPLEX INTO THE MEMBRANE, spacegroup C 1 2 1 Deposited 2009-05-07 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 30–116（87 aa） Fragment：C-terminal fragment, UNP residues 30-116
Not recorded GGG glycylglycylglycine × 1 SO4 SULFATE ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.3；293 K；29% PEG 400, 0.1M HEPES, 0.2M lithium sulfate, 0.1M sodium chloride, 0.03M glycylglycylglycine, pH 7.3, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.40 Å R-free 0.271
3IPD Helical extension of the neuronal SNARE complex into the membrane, spacegroup I 21 21 21 Deposited 2009-08-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 30–116（87 aa） Fragment：C-terminal fragment, UNP Residues 30-116
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.8；293 K；16% MPD, 0.1M TRIS, 0.05M MAGNESIUM CHLORIDE, 3% SORBITOL, pH 8.8, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 4.80 Å R-free 0.332
3IPD Helical extension of the neuronal SNARE complex into the membrane, spacegroup I 21 21 21 Deposited 2009-08-17 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 30–116（87 aa） Fragment：C-terminal fragment, UNP Residues 30-116
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.8；293 K；16% MPD, 0.1M TRIS, 0.05M MAGNESIUM CHLORIDE, 3% SORBITOL, pH 8.8, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 4.80 Å R-free 0.332
3J96 Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State I) Deposited 2014-12-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric（13） Consistent with protein count
Chain K 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40；pH 8；50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40
cryo-EM vitrification conditions Blot for 3.5 seconds before plunging；90 K；Cryogen ETHANE；Blot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
Resolution 7.60 Å R-free 0.303
3J97 Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State II) Deposited 2014-12-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric（13） Consistent with protein count
Chain K 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40；pH 8；50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40
cryo-EM vitrification conditions Blot for 3.5 seconds before plunging；90 K；Cryogen ETHANE；Blot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
Resolution 7.80 Å R-free 0.311
3J98 Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State IIIa) Deposited 2014-12-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric（13） Consistent with protein count
Chain K 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40；pH 8；50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40
cryo-EM vitrification conditions Blot for 3.5 seconds before plunging.；90 K；Cryogen ETHANE；Blot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
Resolution 8.40 Å R-free 0.328
3J99 Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State IIIb) Deposited 2014-12-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric（13） Consistent with protein count
Chain K 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40；pH 8；50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40
cryo-EM vitrification conditions Blot for 3.5 seconds before plunging.；77 K；Cryogen ETHANE；Blot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
Resolution 8.20 Å R-free 0.304
5CCG Structure of the Ca2+-bound synaptotagmin-1 SNARE complex (long unit cell form) Deposited 2015-07-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain A 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded CA CALCIUM ION × 18 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；0.25% v/v PEG8000, 25 mM HEPES-Na, 75 mM NaCl, 25 mM MgCl2, 0.25 mM CaCl2
Resolution 3.50 Å R-free 0.352
5CCG Structure of the Ca2+-bound synaptotagmin-1 SNARE complex (long unit cell form) Deposited 2015-07-02 Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain G 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded CA CALCIUM ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；0.25% v/v PEG8000, 25 mM HEPES-Na, 75 mM NaCl, 25 mM MgCl2, 0.25 mM CaCl2
Resolution 3.50 Å R-free 0.352
5CCH Structure of the Ca2+-bound synaptotagmin-1 SNARE complex (short unit cell form) Deposited 2015-07-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain A 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded CA CALCIUM ION × 11 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；0.25% v/v PEG8000, 25 mM HEPES-Na, 75 mM NaCl, 25 mM MgCl2, 0.25 mM CaCl2
Resolution 3.60 Å R-free 0.289
5CCI Structure of the Mg2+-bound synaptotagmin-1 SNARE complex (short unit cell form) Deposited 2015-07-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain A 28–89（62 aa） Fragment：UNP residues 28-89
Not recorded MG MAGNESIUM ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；0.75% v/v PEG3350, 25 mM HEPES-Na, 75 mM NaCl, 25 mM MgCl2
Resolution 4.10 Å R-free 0.323
5W5C Crystal structure of the primed SNARE-Complexin-Synaptotagmin-1 C2AB complex Deposited 2017-06-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 28–66（39 aa） Fragment：UNP residues 29-66
Not recorded MG MAGNESIUM ION × 2 GOL GLYCEROL × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；100 mM HEPES, pH7.4, 15-20% PEG3350, 200 mM ammonium formate
Resolution 1.85 Å R-free 0.232
5W5D Crystal structure of the primed SNARE-Complexin-Synaptotagmin-1 C2B complex Deposited 2017-06-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain A 28–66（39 aa） Fragment：UNP residues 29-66
Not recorded MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；100 mM HEPES, pH7.0, 15-17% PEG3350, 240 mM sodium malonate
Resolution 2.50 Å R-free 0.231
6A30 Crystal Structure of Munc13-1 MUN Domain and Synaptobrevin-2 Juxtamembrane Linker Region Deposited 2018-06-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain P 87–92（6 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277.15 K；PEG 3350, magnesium nitrate, 2-(N-Morpholino)ethanesulfonic acid (MES)
Resolution 2.79 Å R-free 0.239
6IP1 alpha-SNAP-SNARE subcomplex in the whole 20S complex Deposited 2018-11-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 1–94（94 aa） Fragment：UNP residues 1-94
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6MDM The 20S supercomplex engaging the SNAP-25 N-terminus (class 1) Deposited 2018-09-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
Chain J 1–89（89 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 9 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 3.5 seconds before plunging.
Resolution 4.40 Å
6MDN The 20S supercomplex engaging the SNAP-25 N-terminus (class 2) Deposited 2018-09-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric（11） Consistent with protein count
Chain J 1–72（72 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 9 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 3.5 seconds before plunging.
Resolution 4.40 Å
6MTI Synaptotagmin-1 C2A, C2B domains and SNARE-pin proteins (5CCI) individually docked into Cryo-EM map of C2AB-SNARE complexes helically organized on lipid nanotube surface in presence of Mg2+ Deposited 2018-10-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 30 PDB declaration: 30-meric（30） Consistent with protein count
Chain A 28–89（62 aa） Fragment：residues 28-89
Chain E 28–89（62 aa） Fragment：residues 28-89
Chain I 28–89（62 aa） Fragment：residues 28-89
Chain M 28–89（62 aa） Fragment：residues 28-89
Chain Q 28–89（62 aa） Fragment：residues 28-89
Chain U 28–89（62 aa） Fragment：residues 28-89
Not recorded MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.40 Å
6WVW Crystal structure of the R59P-SNAP25 containing SNARE complex Deposited 2020-05-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 28–89（62 aa）
Not recorded CA CALCIUM ION × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；100 mM MES (pH 6.0), 100 mM CaCl2, 20-25% (v/v)
Resolution 2.11 Å R-free 0.244
6WVW Crystal structure of the R59P-SNAP25 containing SNARE complex Deposited 2020-05-07 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 28–89（62 aa）
Not recorded CA CALCIUM ION × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；100 mM MES (pH 6.0), 100 mM CaCl2, 20-25% (v/v)
Resolution 2.11 Å R-free 0.244
7UDB Cryo-EM structure of a synaptobrevin-Munc18-1-syntaxin-1 complex class 2 Deposited 2022-03-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 29–83（55 aa）
Mutation：Q36C No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.