1p5q

Crystal Structure of FKBP52 C-terminal Domain

Method: X-RAY DIFFRACTION

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

FK506-binding protein 4

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	SULFATE ION × 18 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FKBP4_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 23–336； UniProt 145–458 Author chain B； PDBConstruct 23–336； UniProt 145–458 Author chain C； PDBConstruct 23–336； UniProt 145–458

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	1p5q
Deposition date deposition_date	2003-04-28
Structure title title	Crystal Structure of FKBP52 C-terminal Domain
Keywords keywords	ISOMERASE; ISOMERASE
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.

1p5q__assembly_1__model_1

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

Download this curve (.dat)

1p5q__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1p5q__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	40.24 Å
Rg (electron density)	39.26 Å
Total Rg	39.88 Å
Atom count	13842
Residues	1686
Excluded volume	245410 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1p5q__assembly_1__model_1`	hexameric （6）	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 (3)

Entity 1 Entity 1 polymer

Description description	FK506-binding protein 4
Molecular weight formula_weight	38435.8 kDa
EC 编号 ec_number	5.2.1.8
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	7448

MGSSHHHHHHSSGLVPRGSHMEEDGGIIRRIQTRGEGYAKPNEGAIVEVALEGYYKDKLFDQRELRFEIGEGENLDLPYGLERAIQRMEKGEHSIVYLKPSYAFGSVGKEKFQIPPNAELKYELHLKSFEKAKESWEMNSEEKLEQSTIVKERGTVYFKEGKYKQALLQYKKIVSWLEYESSFSNEEAQKAQALRLASHLNLAMCHLKLQAFSAAIESCNKALELDSNNEKGLSRRGEAHLAVNDFELARADFQKVLQLYPNNKAAKTQLAVCQQRIRRQLAREKKLYANMFERLAEEENKAKAEASSGDHPTDTEMKEEQKSNTAGSQSQVETEA

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 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	9

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	527

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6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (9 domains)

Domain ID domain_id	d1p5qa1
Class class	a — All alpha proteins
Fold Fold fold	a.118 — alpha-alpha superhelix
Superfamily Superfamily superfamily	a.118.8 — TPR-like
Family Family family	a.118.8.1 — Tetratricopeptide repeat (TPR)

Domain ID domain_id	d1p5qa2
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	d1p5qa3
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

Domain ID domain_id	d1p5qb1
Class class	a — All alpha proteins
Fold Fold fold	a.118 — alpha-alpha superhelix
Superfamily Superfamily superfamily	a.118.8 — TPR-like
Family Family family	a.118.8.1 — Tetratricopeptide repeat (TPR)

Domain ID domain_id	d1p5qb2
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	d1p5qb3
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

Domain ID domain_id	d1p5qc1
Class class	a — All alpha proteins
Fold Fold fold	a.118 — alpha-alpha superhelix
Superfamily Superfamily superfamily	a.118.8 — TPR-like
Family Family family	a.118.8.1 — Tetratricopeptide repeat (TPR)

Domain ID domain_id	d1p5qc2
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	d1p5qc3
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 (6 domains)

Domain ID domain_id	1p5qA01
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	1p5qA02
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily	10 — Tetratricopeptide repeat domain

Domain ID domain_id	1p5qB01
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	1p5qB02
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily	10 — Tetratricopeptide repeat domain

Domain ID domain_id	1p5qC01
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	1p5qC02
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily	10 — Tetratricopeptide repeat domain

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Unit-cell length a length_a	114.274 Å
Unit-cell length b length_b	142.927 Å
Unit-cell length c length_c	170.897 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	24

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.2160
R_work r_work	0.2120
R_free r_free	0.2840

Crystal Structure of FKBP52 C-terminal Domain

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

FK506-binding protein 4

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

1p5q__assembly_1__model_1

1p5q__assembly_1__model_1 | I(q)

1p5q__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (9 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Crystal Structure of FKBP52 C-terminal Domain

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

FK506-binding protein 4

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

1p5q__assembly_1__model_1

1p5q__assembly_1__model_1 | I(q)

1p5q__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (9 domains)

CATH v4.4 (6 domains)

7. Citations (1)