6sb0

cryo-EM structure of mTORC1 bound to PRAS40-fused active RagA/C GTPases

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR

Homo sapiens

UniProt P42345

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 Target of rapamycin complex subunit LST8 × 2 (Q9BVC4) Ras-related GTP-binding protein A × 2 (Q7L523) Ras-related GTP-binding protein C × 2 (Q9HB90) Regulatory-associated protein of mTOR × 2 (Q8N122) Proline-rich AKT1 substrate 1 × 2 (Q96B36) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name MTOR_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 60–355; UniProt 60–355 Author chain A; PDBConstruct 381–2549; UniProt 381–2549 Author chain B; PDBConstruct 60–355; UniProt 60–355 Author chain B; PDBConstruct 381–2549; UniProt 381–2549

Target of rapamycin complex subunit LST8

Homo sapiens

UniProt Q9BVC4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR × 2 (P42345) Ras-related GTP-binding protein A × 2 (Q7L523) Ras-related GTP-binding protein C × 2 (Q9HB90) Regulatory-associated protein of mTOR × 2 (Q8N122) Proline-rich AKT1 substrate 1 × 2 (Q96B36) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LST8_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain E; PDBConstruct 1–326; UniProt 1–326 Author chain H; PDBConstruct 1–326; UniProt 1–326

Ras-related GTP-binding protein A

Homo sapiens

UniProt Q7L523

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR × 2 (P42345) Target of rapamycin complex subunit LST8 × 2 (Q9BVC4) Ras-related GTP-binding protein C × 2 (Q9HB90) Regulatory-associated protein of mTOR × 2 (Q8N122) Proline-rich AKT1 substrate 1 × 2 (Q96B36) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RRAGA_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–313; UniProt 1–313 Author chain I; PDBConstruct 1–313; UniProt 1–313

Ras-related GTP-binding protein C

Homo sapiens

UniProt Q9HB90

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR × 2 (P42345) Target of rapamycin complex subunit LST8 × 2 (Q9BVC4) Ras-related GTP-binding protein A × 2 (Q7L523) Regulatory-associated protein of mTOR × 2 (Q8N122) Proline-rich AKT1 substrate 1 × 2 (Q96B36) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RRAGC_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 1–399; UniProt 1–399 Author chain J; PDBConstruct 1–399; UniProt 1–399

Regulatory-associated protein of mTOR

Homo sapiens

UniProt Q8N122

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR × 2 (P42345) Target of rapamycin complex subunit LST8 × 2 (Q9BVC4) Ras-related GTP-binding protein A × 2 (Q7L523) Ras-related GTP-binding protein C × 2 (Q9HB90) Proline-rich AKT1 substrate 1 × 2 (Q96B36) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RPTOR_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain N; PDBConstruct 1–1335; UniProt 1–1335 Author chain Y; PDBConstruct 1–1335; UniProt 1–1335

Proline-rich AKT1 substrate 1

Homo sapiens

UniProt Q96B36

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-protein kinase mTOR × 2 (P42345) Target of rapamycin complex subunit LST8 × 2 (Q9BVC4) Ras-related GTP-binding protein A × 2 (Q7L523) Ras-related GTP-binding protein C × 2 (Q9HB90) Regulatory-associated protein of mTOR × 2 (Q8N122) GUANOSINE-5'-TRIPHOSPHATE × 2 GUANOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name AKTS1_HUMAN
Isoform Q96B36-3
PDB entities 6
Chains and sequence ranges Author chain O; PDBConstruct 1–256; UniProt 21–276 Author chain T; PDBConstruct 1–256; UniProt 21–276

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id6sb0
Deposition date deposition_date2019-07-18
Structure title titlecryo-EM structure of mTORC1 bound to PRAS40-fused active RagA/C GTPases
Keywords keywordssmall GTPases, mTORC1 activator, roadblock domain, GTPase domain, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

6sb0__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6sb0__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6sb0__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)88.13 Å
Rg (electron density)88.79 Å
Total Rg88.69 Å
Atom count41284
Residues8305
Excluded volume665430 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6sb0__assembly_1__model_1 dodecameric (12) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (8)

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7. Citations (1)