SAXSdb — 4b8p

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

IMPORTIN SUBUNIT ALPHA-1A

ORYZA SATIVA JAPONICA GROUP

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	A89NLS × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	A89NLS × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IMA1A_ORYSJ
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 37–490； UniProt 73–526 Author chain B； PDBConstruct 37–490； UniProt 73–526

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	4b8p
Deposition date deposition_date	2012-08-29
Structure title title	rImp_alpha_A89NLS
Keywords keywords	PROTEIN TRANSPORT, NUCLEAR LOCALIZATION SIGNAL; 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.

4b8p__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4b8p__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4b8p__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	28.87 Å
Rg (electron density)	28.67 Å
Total Rg	29.02 Å
Atom count	3280
Residues	428
Excluded volume	58787 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4b8p__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4b8p__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 SUBUNIT ALPHA-1A
Molecular weight formula_weight	53026.8 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	6780

GSGMKETAAAKFERQHMDSPDLGTDDDDKAMADIGSSLPAMIGGVYSDDNNLQLEATTQFRKLLSIERSPPIEEVIQSGVVPRFVQFLTREDFPQLQFEAAWALTNIASGTSENTKVVIDHGAVPIFVKLLGSSSDDVREQAVWALGNVAGDSPKCRDLVLANGALLPLLAQLNEHTKLSMLRNATWTLSNFCRGKPQPSFEQTRPALPALARLIHSNDEEVLTDACWALSYLSDGTNDKIQAVIEAGVCPRLVELLLHPSPSVLIPALRTVGNIVTGDDAQTQCIIDHQALPCLLSLLTQNLKKSIKKEACWTISNITAGNKDQIQAVINAGIIGPLVNLLQTAEFDIKKEAAWAISNATSGGSHDQIKYLVSEGCIKPLCDLLICPDIRIVTVCLEGLENILKVGETDKTLAAGDVNVFSQMIDEAEGLEKIENLQSHDNNEIYEKAVKILEAYWMDEEDDTMGATTVAAPQGATFDFGQGGGAAQFK

Source Source

Source organism organism	ORYZA SATIVA JAPONICA GROUP
Common name common_name	JAPANESE RICE
NCBI taxonomy ID ncbi_taxonomy_id	39947
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	A89NLS
Molecular weight formula_weight	1519.9 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

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

VHKTVLGKRKYW

Source Source

Source organism organism	SYNTHETIC CONSTRUCT
NCBI taxonomy ID ncbi_taxonomy_id	32630
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	220

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	4b8pA00
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	4b8pB00
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

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Unit-cell length a length_a	62.425 Å
Unit-cell length b length_b	140.967 Å
Unit-cell length c length_c	73.167 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	89.98 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	19.818 Å
R factor r_factor	0.1896
R_work r_work	0.1888
R_free r_free	0.2038

rImp_alpha_A89NLS

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

IMPORTIN SUBUNIT ALPHA-1A

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

4b8p__assembly_2__model_1

4b8p__assembly_2__model_1 | I(q)

4b8p__assembly_2__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) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

rImp_alpha_A89NLS

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

IMPORTIN SUBUNIT ALPHA-1A

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

4b8p__assembly_2__model_1

4b8p__assembly_2__model_1 | I(q)

4b8p__assembly_2__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) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)