3oyc

Crystal structure of the Prototype Foamy Virus (PFV) intasome in complex with magnesium and the INSTI PICA

Method: X-RAY DIFFRACTION

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

PFV integrase

Human spumaretrovirus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Homooligomer	Protein 4 DNA 4	;DNA (5'-D(APTPTPGPTPCPAPTPGPGPAPAPTPTPTPCPGPCPA)-3') ; × 2 ;DNA (5'-D(TPGPCPGPAPAPAPTPTPCPCPAPTPGPAPCPA)-3') ; × 2 ZINC ION × 2 SULFATE ION × 4 GLYCEROL × 8 AMMONIUM ION × 2 MAGNESIUM ION × 4 9-(4-fluorobenzyl)-N-hydroxy-9H-beta-carboline-3-carboxamide × 2 water × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	POL_FOAMV
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–395； UniProt 752–1143 Author chain B； PDBConstruct 4–395； UniProt 752–1143

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	3oyc
Deposition date deposition_date	2010-09-23
Structure title title	Crystal structure of the Prototype Foamy Virus (PFV) intasome in complex with magnesium and the INSTI PICA
Keywords keywords	;PROTEIN-DNA COMPLEX, TETRAMER, DNA INTEGRATION, ENDONUCLEASE, METAL-BINDING, MULTIFUNCTIONAL ENZYME, NUCLEASE, NUCLEOTIDYLTRANSFERASE, NUCLEUS, TRANSFERASE, VIRAL NUCLEOPROTEIN, VIRION, DNA-BINDING, ZINC BINDING, HHCC MOTIF, VIRAL PROTEIN, RECOMBINATION, INHIBITOR, DNA-BINDING PROTEIN-DNA complex, VIRAL PROTEIN-DNA complex ;; RECOMBINATION,VIRAL PROTEIN/DNA
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.

3oyc__assembly_1__model_1

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

Download this curve (.dat)

3oyc__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3oyc__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	39.23 Å
Rg (electron density)	39.98 Å
Total Rg	40.07 Å
Atom count	10324
Residues	1176
Excluded volume	180240 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3oyc__assembly_1__model_1`	octameric （8）	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 (10)

Entity 1 Entity 1 polymer

Description description	PFV integrase
Molecular weight formula_weight	44456.7 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	5407

GPGCNTKKPNLDAELDQLLQGHYIKGYPKQYTYFLEDGKVKVSRPEGVKIIPPQSDRQKIVLQAHNLAHTGREATLLKIANLYWWPNMRKDVVKQLGRCQQCLITNASNKASGPILRPDRPQKPFDKFFIDYIGPLPPSQGYLYVLVVVDGMTGFTWLYPTKAPSTSATVKSLNVLTSIAIPKVIHSDQGAAFTSSTFAEWAKERGIHLEFSTPYHPQSSGKVERKNSDIKRLLTKLLVGRPTKWYDLLPVVQLALNNTYSPVLKYTPHQLLFGIDSNTPFANQDTLDLTREEELSLLQEIRTSLYHPSTPPASSRSWSPVVGQLVQERVARPASLRPRWHKPSTVLKVLNPRTVVILDHLGNNRTVSIDNLKPTSHQNGTTNDTATMDHLEKNE

Source Source

Source organism organism	Human spumaretrovirus
Common name common_name	SFVcpz(hu)
NCBI taxonomy ID ncbi_taxonomy_id	11963
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	;DNA (5'-D(APTPTPGPTPCPAPTPGPGPAPAPTPTPTPCPGPCP*A)-3') ;
Molecular weight formula_weight	5834.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	C

ATTGTCATGGAATTTCGCA

Entity 3 Entity 3 polymer

Description description	;DNA (5'-D(TPGPCPGPAPAPAPTPTPCPCPAPTPGPAPCP*A)-3') ;
Molecular weight formula_weight	5195.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	D

TGCGAAATTCCATGACA

Entity 4 Entity 4 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 7 Entity 7 non-polymer

Description description	AMMONIUM ION
Molecular weight formula_weight	18.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 8 Entity 8 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 9 Entity 9 non-polymer

Description description	9-(4-fluorobenzyl)-N-hydroxy-9H-beta-carboline-3-carboxamide
Molecular weight formula_weight	335.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 10 Entity 10 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	245

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6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id	3oycA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	340 — Endonuclease III; domain 1
Homologous superfamily homologous superfamily	70 —

Domain ID domain_id	3oycA02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	3oycA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

Domain ID domain_id	3oycA04
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	20 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	110 —

Domain ID domain_id	3oycB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

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Unit-cell length a length_a	159.960 Å
Unit-cell length b length_b	159.960 Å
Unit-cell length c length_c	123.770 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	16

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.660 Å
Low-resolution limit resolution_low	38.800 Å
R factor r_factor	0.2032
R_work r_work	0.2019
R_free r_free	0.2261

Crystal structure of the Prototype Foamy Virus (PFV) intasome in complex with magnesium and the INSTI PICA

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

PFV integrase

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

3oyc__assembly_1__model_1

3oyc__assembly_1__model_1 | I(q)

3oyc__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 (10)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 water

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

7. Citations (1)

Crystal structure of the Prototype Foamy Virus (PFV) intasome in complex with magnesium and the INSTI PICA

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

PFV integrase

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

3oyc__assembly_1__model_1

3oyc__assembly_1__model_1 | I(q)

3oyc__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 (10)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 water

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

7. Citations (1)