SAXSdb — 4dri

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Peptidyl-prolyl cis-trans isomerase FKBP5

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Serine/threonine-protein kinase mTOR × 1 （P42345） RAPAMYCIN IMMUNOSUPPRESSANT DRUG × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FKBP5_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–144； UniProt 1–140

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 2	Peptidyl-prolyl cis-trans isomerase FKBP5 × 1 （Q13451） RAPAMYCIN IMMUNOSUPPRESSANT DRUG × 1 water × 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	2
Chains and sequence ranges	Author chain B； PDBConstruct 9–98； UniProt 2025–2114

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_id	4dri
Deposition date deposition_date	2012-02-17
Structure title title	Co-crystal structure of the PPIase domain of FKBP51, Rapamycin and the FRB fragment of mTOR
Keywords keywords	;Fk-506 binding domain, Hsp90 cochaperone, immunophilin, peptidyl-prolyl isomerase, mammalian target of Rapamycin, kinase, signalling, immunosuppression, cancer, Isomerase-Transferase complex ;; Isomerase/Transferase
Experimental Method method	X-RAY DIFFRACTION

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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.

4dri__assembly_1__model_1

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

Download this curve (.dat)

4dri__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4dri__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	19.62 Å
Rg (electron density)	18.47 Å
Total Rg	19.60 Å
Atom count	1783
Residues	217
Excluded volume	32003 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4dri__assembly_1__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	Peptidyl-prolyl cis-trans isomerase FKBP5
Molecular weight formula_weight	15693.8 kDa
EC 编号 ec_number	5.2.1.8
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2082

GAMGMTTDEGAKNNEESPTATVAEQGEDITSKKDRGVLKIVKRVGNGEETPMIGDKVYVHYKGKLSNGKKFDSSHDRNEPFVFSLGKGQVIKAWDIGVATMKKGEICHLLCKPEYAYGSAGSLPKIPSNATLFFEIELLDFKGE

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Serine/threonine-protein kinase mTOR
Molecular weight formula_weight	11747.4 kDa
EC 编号 ec_number	2.7.11.1
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GAMDPEFMEMWHEGLEEASRLYFGERNVKGMFEVLEPLHAMMERGPQTLKETSFNQAYGRDLMEAQEWCRKYMKSGNVKDLTQAWDLYYHVFRRISKQ

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	RAPAMYCIN IMMUNOSUPPRESSANT DRUG
Molecular weight formula_weight	914.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	223

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6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d4dria_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.26 — FKBP-like
Superfamily Superfamily superfamily	d.26.1 — FKBP-like
Family Family family	d.26.1.1 — FKBP immunophilin/proline isomerase

Domain ID domain_id	d4drib1
Class class	a — All alpha proteins
Fold Fold fold	a.24 — Four-helical up-and-down bundle
Superfamily Superfamily superfamily	a.24.7 — FKBP12-rapamycin-binding domain of FKBP-rapamycin-associated protein (FRAP)
Family Family family	a.24.7.1 — FKBP12-rapamycin-binding domain of FKBP-rapamycin-associated protein (FRAP)

Domain ID domain_id	d4drib2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	4driA00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	50 — Chitinase A; domain 3
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	4driB00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily	150 — FKBP12-rapamycin binding domain

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Unit-cell length a length_a	59.503 Å
Unit-cell length b length_b	59.554 Å
Unit-cell length c length_c	67.787 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.450 Å
Low-resolution limit resolution_low	19.050 Å
R factor r_factor	0.1784
R_work r_work	0.1769
R_free r_free	0.2064

Co-crystal structure of the PPIase domain of FKBP51, Rapamycin and the FRB fragment of mTOR

1. Protein Identity and Related Structures Protein Identity & Related Structures

Peptidyl-prolyl cis-trans isomerase FKBP5

State in the Current Structure

Other States of the Same Protein in the Database

Serine/threonine-protein kinase mTOR

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4dri__assembly_1__model_1

4dri__assembly_1__model_1 | I(q)

4dri__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Co-crystal structure of the PPIase domain of FKBP51, Rapamycin and the FRB fragment of mTOR

1. Protein Identity and Related Structures Protein Identity & Related Structures

Peptidyl-prolyl cis-trans isomerase FKBP5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Serine/threonine-protein kinase mTOR

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4dri__assembly_1__model_1

4dri__assembly_1__model_1 | I(q)

4dri__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (1)