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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：B1VBB0 New Search
12PDB entries
14Biological assembly
18chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
4HMC Crystal structure of cold-adapted chitinase from Moritella marina Deposited 2012-10-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 23–550（528 aa）
Not recorded NA SODIUM ION × 2 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；277 K；23% PEG 4000 w/v, 0.16M ammonium sulphate, 0.1M citrate buffer, pH 5.5., VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.10 Å R-free 0.246
4HMD Crystal structure of cold-adapted chitinase from Moritella marina with a reaction intermediate - oxazolinium ion (NGO) Deposited 2012-10-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 23–550（528 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NGO 2-METHYL-4,5-DIHYDRO-(1,2-DIDEOXY-ALPHA-D-GLUCOPYRANOSO)[2,1-D]-1,3-OXAZOLE × 2 NA SODIUM ION × 2 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；277 K；23% PEG 4000 w/v, 0.16M ammonium sulphate, 0.1M citrate buffer, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.26 Å R-free 0.248
4HME Crystal structure of cold-adapted chitinase from Moritella marina with a reaction product - NAG2 Deposited 2012-10-18 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 23–550（528 aa）
Not recorded NA SODIUM ION × 2 GOL GLYCEROL × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；277 K；23% PEG 4000 w/v, 0.16M ammonium sulphate, 0.1M citrate buffer, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.07 Å R-free 0.212
4MB3 Crystal structure of E153Q mutant of cold-adapted chitinase from Moritella marina Deposited 2013-08-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–550（528 aa）
Mutation：E153Q NA SODIUM ION × 4 GLY GLYCINE × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 IMD IMIDAZOLE × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；292 K；12.5% w/v PEG 1000, 12.5% w/v PEG 3350, 12.5% v/v MPD, 0.02M Na-L-glutamate, 0.02M alanine (racemic), 0.02M glycine, 0.02M lysine HCl (racemic), 0.02Mserine (racemic), 0.1M MES/imidazole pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 1.55 Å R-free 0.183
4MB4 Crystal structure of E153Q mutant of cold-adapted chitinase from Moritella complex with Nag4 Deposited 2013-08-19 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–550（528 aa）
Mutation：E153Q GOL GLYCEROL × 3 NA SODIUM ION × 1 SO4 SULFATE ION × 1 GLY GLYCINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；292 K；12.5% w/v PEG 1000, 12.5% w/v PEG 3350, 12.5% v/v MPD, 0.02M Na-L-glutamate, 0.02M alanine (racemic), 0.02M glycine, 0.02M lysine HCl (racemic), 0.02M serine (racemic), 0.1M MES/imidazole pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 1.48 Å R-free 0.170
4MB5 Crystal structure of E153Q mutant of cold-adapted chitinase from Moritella complex with Nag5 Deposited 2013-08-19 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–550（528 aa）
Mutation：E153Q NA SODIUM ION × 1 GOL GLYCEROL × 3 PEG DI(HYDROXYETHYL)ETHER × 2 SO4 SULFATE ION × 1 GLY GLYCINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；292 K；12.5% w/v PEG 1000, 12.5% w/v PEG 3350, 12.5% v/v MPD, 0.02M Na-L-glutamate, 0.02M alanine (racemic), 0.02M glycine, 0.02M lysine HCl (racemic), 0.02M serine (racemic), 0.1M MES/imidazole pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 1.64 Å R-free 0.177
4W5Z High resolution crystal structure of catalytic domain of Chitinase 60 from psychrophilic bacteria Moritella marina. Deposited 2014-08-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–345（345 aa）
Not recorded NA SODIUM ION × 8 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 ACT ACETATE ION × 3 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；292 K；45% v/v MPD, 0.2M ammonium acetate and 0.1M Bis Tris pH 5.5.
Resolution 1.32 Å R-free 0.150
9FBO Deletion mutant of chitinase MmChi60 Deposited 2024-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–422（400 aa）
Chain A 505–550（46 aa）
Not recorded NA SODIUM ION × 1 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；10% (w/v) PEG 20000, 20% (v/v) PEG MME 550, a mix of monosaccharides: 20 mM of each: D-glucose, D-mannose, D-galactose, L-fucose, D-xylose, N-acetyl-D-glucosamine and 0.1 M MES/imidazole
Resolution 2.69 Å R-free 0.252
9FBO Deletion mutant of chitinase MmChi60 Deposited 2024-05-14 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 23–422（400 aa）
Chain B 505–550（46 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；10% (w/v) PEG 20000, 20% (v/v) PEG MME 550, a mix of monosaccharides: 20 mM of each: D-glucose, D-mannose, D-galactose, L-fucose, D-xylose, N-acetyl-D-glucosamine and 0.1 M MES/imidazole
Resolution 2.69 Å R-free 0.252
9FBP Deletion mutant MmChi60 Deposited 2024-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–347（325 aa）
Chain A 505–550（46 aa）
Not recorded NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；1.1 M sodium malonate, 0.5% Jeffamine ED-2001 and 0.1 M HEPES at pH 7.0
Resolution 1.84 Å R-free 0.219
9FBP Deletion mutant MmChi60 Deposited 2024-05-14 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 23–347（325 aa）
Chain B 505–550（46 aa）
Not recorded NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；1.1 M sodium malonate, 0.5% Jeffamine ED-2001 and 0.1 M HEPES at pH 7.0
Resolution 1.84 Å R-free 0.219
9FBQ Deletion mutant of chitinase MmChi60 Deposited 2024-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–345（323 aa）
Not recorded NA SODIUM ION × 2 MLI MALONATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；293 K；45% (v/v) MPD, 0.2 M ammonium acetate, 0.1 M Bis-tris
Resolution 1.48 Å R-free 0.206
9FBR Deletion mutant of chitinase MmChi60 Deposited 2024-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–345（323 aa）
Not recorded NA SODIUM ION × 1 CA CALCIUM ION × 1 EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；22% (w/v) Poly(acrylic acid sodium salt) average Mw ~5100 Da, 0.02 M MgCl2, 0.1 M HEPES pH 7.5, with N,N',N'', N'''-tetraacetylchitotetraose (NAG4 )
Resolution 1.74 Å R-free 0.222
9FBS Deletion mutant of chitinase MmChi60 Deposited 2024-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–345（323 aa）
Not recorded NA SODIUM ION × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；20% (w/v) PEG 4000, 0.4 M MgCl2, 0.1 M Tris pH 8.0
Resolution 2.35 Å R-free 0.266

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.