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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：P29017 New Search
10PDB 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
3OV6 CD1c in complex with MPM (mannosyl-beta1-phosphomycoketide) Deposited 2010-09-15 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–201（183 aa） Fragment：beta-2-microglobulin
Mutation：C-terminal fusion to CD1c ectodomain, N52Q, N57Q, K108G, N128Q, N241Q, W242G, CD1c a3 domain replaced with CD1b a3 domain NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 D12 DODECANE × 1 MK0 1-O-[(S)-hydroxy{[(4S,8S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl]oxy}phosphoryl]-beta-D-mannopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9.45；291 K；0.1M CHES pH 9.45, 1.05M sodium citrate, 25 mM triglycine, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.50 Å R-free 0.273
4ONO CD1c in complex with PM (phosphomycoketide) Deposited 2014-01-28 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 24–201（178 aa）
Mutation：N52Q, N57Q, K108G, N128Q, N241Q, W242G PMK (4R,8S,16S,20R)-4,8,12,16,20-pentamethylheptacosyl dihydrogen phosphate × 1 CL CHLORIDE ION × 6 MLI MALONATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 9.4；291 K；1.05 M sodium citrate, 100 mM CHES (pH 9.4), and 25 mM triglycine, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Resolution 2.71 Å R-free 0.271
5C9J Human CD1c with ligands in A' and F' channel Deposited 2015-06-27 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 24–203（180 aa）
Not recorded DAO LAURIC ACID × 2 STE STEARIC ACID × 1 GOL GLYCEROL × 4 PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293.15 K；0.2M Magnesium chloride, 0.1M Tris pH 8, 10% PEG 8000, 1:1 protein to precipitant ratio.
Resolution 2.40 Å R-free 0.200
6C09 Ternary crystal structure of the 3C8 TCR-CD1c-monoacylglycerol complex Deposited 2017-12-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 19–297（279 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 EKG (2R)-2,3-dihydroxypropyl hexadecanoate × 1 D10 DECANE × 2 K POTASSIUM ION × 3 EDO 1,2-ETHANEDIOL × 3 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；20% PEG 3350, 0.2M potassium thiocynate
Resolution 2.95 Å R-free 0.208
6C15 CD1c in complex with phosphatidylcholine Deposited 2018-01-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–297（279 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 D12 DODECANE × 1 6PL (4S,7R)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSAN-1-AMINIUM 4-OXIDE × 1 NA SODIUM ION × 1 SO4 SULFATE ION × 1 BME BETA-MERCAPTOETHANOL × 1 EDO 1,2-ETHANEDIOL × 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% Dioxane; 1.6 M Ammonium sulfate; 10 mM MES, pH 6.5
Resolution 3.21 Å R-free 0.242
7MX4 CD1c with antigen analogue 1 Deposited 2021-05-18 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–212（194 aa）
Mutation：N52Q, N57Q, K108G, N128Q, W241G NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ZPD (4S,8R,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl (1R,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl hydrogen (R)-phosphate × 1 D12 DODECANE × 1 ZP7 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 MLA MALONIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9.4；293 K；100 mM CHES, 1.05 M sodium citrate, 25 mM triglycine
Resolution 1.73 Å R-free 0.239
7MXF CD1c with antigen analogue 2 Deposited 2021-05-19 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–212（194 aa）
Mutation：N52Q, N57Q, K108G, N128Q, Y242G NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 ZQ4 2,6-anhydro-1-deoxy-1-[(S)-hydroxy{[(4R,8S,12R,16R,20S)-4,8,12,16,20-pentamethylheptacosyl]oxy}phosphoryl]-D-glycero-D-galacto-heptitol × 1 D12 DODECANE × 1 ZP7 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 MLA MALONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9.4；293 K；100 mM CHES, 1.05 M sodium citrate, 25 mM triglycine
Resolution 2.00 Å R-free 0.242
7MXH CD1c with antigen analogue 3 Deposited 2021-05-19 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–212（194 aa）
Mutation：N52Q, N57Q, K108G, N128Q, Y242G NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ZQ7 2,6-anhydro-1-deoxy-1,1-difluoro-1-[(R)-hydroxy{[(4S,8S,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl]oxy}phosphoryl]-D-glycero-D-galacto-heptitol × 1 D12 DODECANE × 1 ZP7 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 MLA MALONIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9.4；293 K；100 mM CHES, 1.05 M sodium citrate, 25 mM triglycine
Resolution 2.11 Å R-free 0.255
9QWJ Crystal structure of S2c TCR in complex with CD1c Deposited 2025-04-14 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 24–297（274 aa）
Not recorded EDO 1,2-ETHANEDIOL × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 BMA beta-D-mannopyranose × 1 D12 DODECANE × 2 CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.1 M Sodium cacodylate trihydrate pH 6.4, 0.2 M Calcium chloride dihydrate, 16 % (w/v) PEG 3350 and 3 % (w/v) 1,6-Hexanediol
Resolution 2.04 Å R-free 0.235
9QWJ Crystal structure of S2c TCR in complex with CD1c Deposited 2025-04-14 Assembly 2 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain N 24–297（274 aa）
Not recorded EDO 1,2-ETHANEDIOL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 BMA beta-D-mannopyranose × 1 CA CALCIUM ION × 2 D10 DECANE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.1 M Sodium cacodylate trihydrate pH 6.4, 0.2 M Calcium chloride dihydrate, 16 % (w/v) PEG 3350 and 3 % (w/v) 1,6-Hexanediol
Resolution 2.04 Å R-free 0.235
9QWK Crystal structure of S2c-a5b6 TCR in complex with CD1c Deposited 2025-04-14 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 24–297（274 aa）
Chain B 24–297（274 aa）
Not recorded D10 DECANE × 2 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium thiocyanate and 20 % (w/v) PEG 3350
Resolution 2.27 Å R-free 0.253
9QWK Crystal structure of S2c-a5b6 TCR in complex with CD1c Deposited 2025-04-14 Assembly 2 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain G 24–297（274 aa）
Chain J 24–297（274 aa）
Not recorded D10 DECANE × 2 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium thiocyanate and 20 % (w/v) PEG 3350
Resolution 2.27 Å R-free 0.253
9QWK Crystal structure of S2c-a5b6 TCR in complex with CD1c Deposited 2025-04-14 Assembly 3 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain L 24–297（274 aa）
Chain O 24–297（274 aa）
Not recorded D10 DECANE × 2 EDO 1,2-ETHANEDIOL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 FUC alpha-L-fucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium thiocyanate and 20 % (w/v) PEG 3350
Resolution 2.27 Å R-free 0.253
9QWK Crystal structure of S2c-a5b6 TCR in complex with CD1c Deposited 2025-04-14 Assembly 4 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain Q 24–297（274 aa）
Chain T 24–297（274 aa）
Not recorded D10 DECANE × 2 EDO 1,2-ETHANEDIOL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium thiocyanate and 20 % (w/v) PEG 3350
Resolution 2.27 Å R-free 0.253

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.