Leptin
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 × 6 PDB declaration: hexameric(6) Consistent with protein copy count | Chain A; UniProt 22–167 Chain C; UniProt 22–167 Chain E; UniProt 22–167 | Not recorded | Leptin receptor × 3 (P48357) | ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4;20 mM HEPES, 150 mM NaCl, pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE | Resolution 6.84 Å |
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 8AVO | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 1AX8 Human obesity protein, leptin Deposited 1997-10-31 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
22–167(146 aa)
|
Mutation:W100E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
pH 7.5;PROTEIN WAS CRYSTALLIZED FROM 1.8M NA FORMATE, 100MM TRIS, PH 7.5
|
Resolution 2.40 Å R-free 0.283 |
| 1AX8 Human obesity protein, leptin Deposited 1997-10-31 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 3 PDB declaration: trimeric |
Chain A
22–167(146 aa)
|
Mutation:W100E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
pH 7.5;PROTEIN WAS CRYSTALLIZED FROM 1.8M NA FORMATE, 100MM TRIS, PH 7.5
|
Resolution 2.40 Å R-free 0.283 |
| 7Z3Q Crystal structure of the human leptin:LepR-CRH2 encounter complex to 3.6 A resolution. Deposited 2022-03-02 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;Index screen HT #F1
0.2 M L-proline
0.1 M HEPES pH 7.5
10% PEG 3350
cryo: 25% PEG400
|
Resolution 3.62 Å R-free 0.305 |
| 7Z3Q Crystal structure of the human leptin:LepR-CRH2 encounter complex to 3.6 A resolution. Deposited 2022-03-02 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;Index screen HT #F1
0.2 M L-proline
0.1 M HEPES pH 7.5
10% PEG 3350
cryo: 25% PEG400
|
Resolution 3.62 Å R-free 0.305 |
| 7Z3Q Crystal structure of the human leptin:LepR-CRH2 encounter complex to 3.6 A resolution. Deposited 2022-03-02 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain E
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;Index screen HT #F1
0.2 M L-proline
0.1 M HEPES pH 7.5
10% PEG 3350
cryo: 25% PEG400
|
Resolution 3.62 Å R-free 0.305 |
| 8AVE Human leptin in complex with the human LEP-R ectodomain fused to a C-terminal trimeric isoleucine GCN4 zipper (2:2 model) Deposited 2022-08-26 | Different construct Different mutation/modification Different oligomeric state Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
22–167(146 aa)
Chain C
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4;20 mM HEPES, 150 mM NaCl, pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 5.62 Å |
| 8AVF Human leptin in complex with the human LEP-R ectodomain fused to a C-terminal trimeric isoleucine GCN4 zipper (closed 3:3 model) Deposited 2022-08-26 | Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain A
22–167(146 aa)
Chain C
22–167(146 aa)
Chain E
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4;20 mM HEPES, 150 mM NaCl, pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 6.45 Å |
| 8K6Z NMR structure of human leptin Deposited 2023-07-26 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
22–167(146 aa)
|
Not recorded | No recorded non-water small molecule |
SOLUTION NMR
NMR measurement conditions
pH 4.5;298 K;Ionic strength (raw mmCIF value) 5;Pressure 1
NMR sample composition
0.8 mM [U-13C; U-15N] leptin, 95% H2O/5% D2O | 95% H2O/5% D2O
|
Resolution not provided |
| 8X80 Structure of leptin-LepR trimer with a small gap Deposited 2023-11-27 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Heteromer;Protein × 6 PDB declaration: hexameric |
Chain D
1–167(167 aa)
Chain E
1–167(167 aa)
Chain F
1–167(167 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 15 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.88 Å |
| 8X81 Structure of leptin-LepR trimer with a large gap Deposited 2023-11-27 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Heteromer;Protein × 6 PDB declaration: hexameric |
Chain D
1–167(167 aa)
Chain E
1–167(167 aa)
Chain F
1–167(167 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 19 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.77 Å |
| 8X85 Structure of leptin-LepR dimer Deposited 2023-11-27 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain C
1–167(167 aa)
Chain D
1–167(167 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 11 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.58 Å |
| 9PUO Neutralizing monoclonal antibody Fab fragment bound to leptin Deposited 2025-07-31 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain C
22–167(146 aa)
|
Mutation:W100E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.4;293 K;Protein at 25 mg/ml in 20 mM Hepes pH 7.4 and 75 mM sodium chloride versus a reservoir with 18% PEG 8,000 and 20% glycerol.
|
Resolution 3.10 Å R-free 0.277 |
| 9PUO Neutralizing monoclonal antibody Fab fragment bound to leptin Deposited 2025-07-31 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain F
22–167(146 aa)
|
Mutation:W100E | PO4 PHOSPHATE ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.4;293 K;Protein at 25 mg/ml in 20 mM Hepes pH 7.4 and 75 mM sodium chloride versus a reservoir with 18% PEG 8,000 and 20% glycerol.
|
Resolution 3.10 Å R-free 0.277 |
9 other PDB entries and 13 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | LEP_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 26–171; UniProt 22–167 Author chain C; PDBConstruct 26–171; UniProt 22–167 Author chain E; PDBConstruct 26–171; UniProt 22–167 |