Cytosolic arginine sensor for mTORC1 subunit 1
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 × 8 PDB declaration: octameric(8) Consistent with protein copy count | Chain E; UniProt 1–328 Chain F; UniProt 1–328 Chain G; UniProt 1–328 | Not recorded | GATOR2 complex protein MIOS × 2 Nucleoporin SEH1 × 1 Protein SEC13 homolog × 1 GATOR2 complex protein WDR24 × 1 | ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE | Resolution 3.40 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 9DX2 | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 5GS9 Crystal structure of CASTOR1-arginine Deposited 2016-08-15 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–329(329 aa)
Chain B
1–329(329 aa)
|
Not recorded | ARG ARGININE × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 5;289 K;0.1M sodium citrate (pH 5.0), 20% (w/v) PEG 8000
|
Resolution 2.50 Å R-free 0.224 |
| 5GS9 Crystal structure of CASTOR1-arginine Deposited 2016-08-15 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain C
1–329(329 aa)
Chain D
1–329(329 aa)
|
Not recorded | ARG ARGININE × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 5;289 K;0.1M sodium citrate (pH 5.0), 20% (w/v) PEG 8000
|
Resolution 2.50 Å R-free 0.224 |
| 5GT7 Crystal Structure of Arg-bound CASTOR1 Deposited 2016-08-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–323(323 aa)
Chain B
1–323(323 aa)
|
Not recorded | ARG ARGININE × 2 MLI MALONATE ION × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;291 K;5 % (w/v) PEG3350, 0.1 M Na Malonate pH 5.0
|
Resolution 2.05 Å R-free 0.211 |
| 5GT7 Crystal Structure of Arg-bound CASTOR1 Deposited 2016-08-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain C
1–323(323 aa)
Chain D
1–323(323 aa)
|
Not recorded | ARG ARGININE × 2 MLI MALONATE ION × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;291 K;5 % (w/v) PEG3350, 0.1 M Na Malonate pH 5.0
|
Resolution 2.05 Å R-free 0.211 |
| 5GT8 Crystal Structure of apo-CASTOR1 Deposited 2016-08-18 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–329(329 aa)
Chain C
1–329(329 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;291 K;21%(w/v) PEG3350, 0.1M Tris pH 5.0, 0.2M MgCl2, 0.2% n- dodecyl- N, N- dimethylamine-N-oxide
|
Resolution 2.80 Å R-free 0.265 |
| 5GT8 Crystal Structure of apo-CASTOR1 Deposited 2016-08-18 | Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain B
1–329(329 aa)
Chain D
1–329(329 aa)
Fragment:UNP residues A285I
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;291 K;21%(w/v) PEG3350, 0.1M Tris pH 5.0, 0.2M MgCl2, 0.2% n- dodecyl- N, N- dimethylamine-N-oxide
|
Resolution 2.80 Å R-free 0.265 |
| 5GV2 Crystal structure of Arginine-bound CASTOR1 from Homo sapiens Deposited 2016-09-01 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–329(329 aa)
Chain C
1–329(329 aa)
|
Not recorded | MG MAGNESIUM ION × 1 ARG ARGININE × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;287 K;PEG 3350, Magnesium acetate tetrahydrate
|
Resolution 2.06 Å R-free 0.238 |
| 5I2C Arginine-bound CASTOR1 from Homo sapiens Deposited 2016-02-08 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–329(329 aa)
Chain B
1–329(329 aa)
|
Not recorded | ARG ARGININE × 2 ACT ACETATE ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 5;291.15 K;0.1 M sodium acetate, 0.25 M ammonium acetate, 22.5% PEG 3350
|
Resolution 1.80 Å R-free 0.204 |
| 5I2C Arginine-bound CASTOR1 from Homo sapiens Deposited 2016-02-08 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain C
1–329(329 aa)
Chain D
1–329(329 aa)
|
Not recorded | ARG ARGININE × 2 ACT ACETATE ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 5;291.15 K;0.1 M sodium acetate, 0.25 M ammonium acetate, 22.5% PEG 3350
|
Resolution 1.80 Å R-free 0.204 |
| 9KP4 Crystal structure of human CASTOR1 in apo form Deposited 2024-11-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–329(329 aa)
Chain B
1–329(329 aa)
|
Not recorded | NH4 AMMONIUM ION × 2 ACY ACETIC ACID × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;289 K;0.1 M Barium chloride, 30% v/v ethanol, 0.2 M NH4Ac, 0.1 M Tris pH 8.5, and 25% PEG 3350.
|
Resolution 3.08 Å R-free 0.264 |
| 9KP4 Crystal structure of human CASTOR1 in apo form Deposited 2024-11-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 2 Insufficient information Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain C
1–329(329 aa)
Chain D
1–329(329 aa)
|
Not recorded | NH4 AMMONIUM ION × 2 ACY ACETIC ACID × 4 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;289 K;0.1 M Barium chloride, 30% v/v ethanol, 0.2 M NH4Ac, 0.1 M Tris pH 8.5, and 25% PEG 3350.
|
Resolution 3.08 Å R-free 0.264 |
| 9LVK Cryo-EM structure of CASTOR1 bound human GATOR2 complex Deposited 2025-02-12 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 18 PDB declaration: octadecameric |
Chain U
1–329(329 aa)
Chain V
1–329(329 aa)
|
Mutation:D304A Mutation:D304A | ZN ZINC ION × 31 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.59 Å |
| 9LWF Cryo-EM structure of dual sensor bound GATOR2 complex Deposited 2025-02-14 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 20 PDB declaration: eicosameric |
Chain U
1–329(329 aa)
Chain V
1–329(329 aa)
|
Mutation:D304A Mutation:D304A | ZN ZINC ION × 32 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.4
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.41 Å |
| 9OTI GATOR2 complex bound to arginine sensor CASTOR1 Deposited 2025-05-27 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 18 PDB declaration: octadecameric |
Chain U
1–329(329 aa)
Chain V
1–329(329 aa)
|
Mutation:D304A, S111A Mutation:D304A, S111A | ZN ZINC ION × 29 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.50 Å |
9 other PDB entries and 14 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | CAST1_HUMAN |
| Isoform | — |
| PDB entities | 4 |
| Chains and sequence ranges | Author chain E; PDBConstruct 1–328; UniProt 1–328 Author chain F; PDBConstruct 1–328; UniProt 1–328 Author chain G; PDBConstruct 1–328; UniProt 1–328 |