SAXSdb — 2jdq

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

IMPORTIN ALPHA-1 SUBUNIT

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	POLYMERASE BASIC PROTEIN 2 × 1 （P31345） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	POLYMERASE BASIC PROTEIN 2 × 1 （P31345） water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IMA1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–450； UniProt 66–512 Author chain B； PDBConstruct 4–450； UniProt 66–512

POLYMERASE BASIC PROTEIN 2

INFLUENZA A VIRUS

UniProt P31345

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	IMPORTIN ALPHA-1 SUBUNIT × 1 （P52294） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	IMPORTIN ALPHA-1 SUBUNIT × 1 （P52294） water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PB2_IAVI7
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain D； PDBConstruct 2–83； UniProt 678–759 Author chain E； PDBConstruct 2–83； UniProt 678–759

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	2jdq
Deposition date deposition_date	2007-01-11
Structure title title	C-terminal domain of influenza A virus polymerase PB2 subunit in complex with human importin alpha5
Keywords keywords	;TRANSPORT, PB2 SUBUNIT, NUCLEAR PROTEIN, PROTEIN TRANSPORT, ARMADILLO REPEATS, INFLUENZA A VIRUS RNA-DEPENDENT RNA POLYMERASE, BIPARTITE NUCLEAR LOCALISATION SIGNAL, NUCLEAR IMPORT ADAPTER, HUMAN IMPORTIN ALPHA5, HOST-VIRUS INTERACTION ;; PROTEIN TRANSPORT
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.

2jdq__assembly_1__model_1

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

Download this curve (.dat)

2jdq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2jdq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.80 Å
Rg (electron density)	28.40 Å
Total Rg	28.96 Å
Atom count	3796
Residues	489
Excluded volume	68160 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2jdq__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2jdq__assembly_2__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 (3)

Entity 1 Entity 1 polymer

Description description	IMPORTIN ALPHA-1 SUBUNIT
Molecular weight formula_weight	49687.7 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	7862

GAMGFHEAQINNMEMAPGGVITSDMIEMIFSKSPEQQLSATQKFRKLLSKEPNPPIDEVISTPGVVARFVEFLKRKENCTLQFESAWVLTNIASGNSLQTRIVIQAGAVPIFIELLSSEFEDVQEQAVWALGNIAGDSTMCRDYVLDCNILPPLLQLFSKQNRLTMTRNAVWALSNLCRGKSPPPEFAKVSPCLNVLSWLLFVSDTDVLADACWALSYLSDGPNDKIQAVIDAGVCRRLVELLMHNDYKVVSPALRAVGNIVTGDDIQTQVILNCSALQSLLHLLSSPKESIKKEACWTISNITAGNRAQIQTVIDANIFPALISILQTAEFRTRKEAAWAITNATSGGSAEQIKYLVELGCIKPLCDLLTVMDSKIVQVALNGLENILRLGEQEAKRNGTGINPYCALIEEAYGLDKIEFLQSHENQEIYQKAFDLIEHYFGTEDEDSS

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	POLYMERASE BASIC PROTEIN 2
Molecular weight formula_weight	8985.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,E

GDPDESTSGVESAVLRGFLILGKEDRRYGPALSINELSNLAKGEKANVLIGQGDVVLVMKRKRDSSILTDSQTATKRIRMAIN

Source Source

Source organism organism	INFLUENZA A VIRUS
NCBI taxonomy ID ncbi_taxonomy_id	11320
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	265

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2jdqa_
Class class	a — All alpha proteins
Fold Fold fold	a.118 — alpha-alpha superhelix
Superfamily Superfamily superfamily	a.118.1 — ARM repeat
Family Family family	a.118.1.0 — automated matches

Domain ID domain_id	d2jdqb_
Class class	a — All alpha proteins
Fold Fold fold	a.118 — alpha-alpha superhelix
Superfamily Superfamily superfamily	a.118.1 — ARM repeat
Family Family family	a.118.1.0 — automated matches

Domain ID domain_id	d2jdqd_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.361 — PB2 C-terminal domain-like
Superfamily Superfamily superfamily	d.361.1 — PB2 C-terminal domain-like
Family Family family	d.361.1.1 — PB2 C-terminal domain-like

Domain ID domain_id	d2jdqe_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.361 — PB2 C-terminal domain-like
Superfamily Superfamily superfamily	d.361.1 — PB2 C-terminal domain-like
Family Family family	d.361.1.1 — PB2 C-terminal domain-like

CATH v4.4 (4 domains)

Domain ID domain_id	2jdqA00
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	10 — Leucine-rich Repeat Variant
Homologous superfamily homologous superfamily	10 — Leucine-rich Repeat Variant

Domain ID domain_id	2jdqB00
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	10 — Leucine-rich Repeat Variant
Homologous superfamily homologous superfamily	10 — Leucine-rich Repeat Variant

Domain ID domain_id	2jdqD00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	30 — Defensin A-like
Homologous superfamily homologous superfamily	90 — Polymerase Basic Protein 2, C-terminal domain

Domain ID domain_id	2jdqE00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	30 — Defensin A-like
Homologous superfamily homologous superfamily	90 — Polymerase Basic Protein 2, C-terminal domain

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Unit-cell length a length_a	94.970 Å
Unit-cell length b length_b	100.550 Å
Unit-cell length c length_c	151.840 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	8

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

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.2080
R_work r_work	0.2060
R_free r_free	0.2470

C-terminal domain of influenza A virus polymerase PB2 subunit in complex with human importin alpha5

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

IMPORTIN ALPHA-1 SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

POLYMERASE BASIC PROTEIN 2

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

2jdq__assembly_1__model_1

2jdq__assembly_1__model_1 | I(q)

2jdq__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

C-terminal domain of influenza A virus polymerase PB2 subunit in complex with human importin alpha5

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

IMPORTIN ALPHA-1 SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

POLYMERASE BASIC PROTEIN 2

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

2jdq__assembly_1__model_1

2jdq__assembly_1__model_1 | I(q)

2jdq__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)