1ft8

CRYSTAL STRUCTURE OF THE RNA-BINDING DOMAIN OF THE MRNA EXPORT FACTOR TAP

Method: X-RAY DIFFRACTION

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

TIP ASSOCIATING PROTEIN

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
5	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	NXF1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–271； UniProt 42–312 Author chain B； PDBConstruct 1–271； UniProt 42–312 Author chain C； PDBConstruct 1–271； UniProt 42–312 Author chain D； PDBConstruct 1–271； UniProt 42–312 Author chain E； PDBConstruct 1–271； UniProt 42–312

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	1ft8
Deposition date deposition_date	2000-09-12
Structure title title	CRYSTAL STRUCTURE OF THE RNA-BINDING DOMAIN OF THE MRNA EXPORT FACTOR TAP
Keywords keywords	ribonucleoprotein (RNP, RRM, RBD) and leucine-rich-repeat (LRR) domains, RNA BINDING PROTEIN; RNA BINDING PROTEIN
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.

1ft8__assembly_4__model_1

Assembly 4 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1ft8__assembly_4__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ft8__assembly_4__model_1 | P(r) · Pending

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

Rg（Guinier）	17.61 Å
Rg (electron density)	16.49 Å
Total Rg	17.46 Å
Atom count	1302
Residues	162
Excluded volume	23347 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ft8__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1ft8__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1ft8__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1ft8__assembly_4__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1ft8__assembly_5__model_1`	monomeric （1）	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 (1)

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6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

Domain ID domain_id	d1ft8a1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.3 — mRNA export factor tap

Domain ID domain_id	d1ft8a2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.7 — RNA-binding domain, RBD, aka RNA recognition motif (RRM)
Family Family family	d.58.7.2 — Non-canonical RBD domain

Domain ID domain_id	d1ft8b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.3 — mRNA export factor tap

Domain ID domain_id	d1ft8c1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.3 — mRNA export factor tap

Domain ID domain_id	d1ft8c2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.7 — RNA-binding domain, RBD, aka RNA recognition motif (RRM)
Family Family family	d.58.7.2 — Non-canonical RBD domain

Domain ID domain_id	d1ft8d_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Superfamily Superfamily superfamily	c.10.2 — L domain-like
Family Family family	c.10.2.3 — mRNA export factor tap

Domain ID domain_id	d1ft8e_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.7 — RNA-binding domain, RBD, aka RNA recognition motif (RRM)
Family Family family	d.58.7.2 — Non-canonical RBD domain

CATH v4.4 (7 domains)

Domain ID domain_id	1ft8A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

Domain ID domain_id	1ft8A02
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Homologous superfamily homologous superfamily	10 — Ribonuclease Inhibitor

Domain ID domain_id	1ft8B00
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Homologous superfamily homologous superfamily	10 — Ribonuclease Inhibitor

Domain ID domain_id	1ft8C01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

Domain ID domain_id	1ft8C02
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Homologous superfamily homologous superfamily	10 — Ribonuclease Inhibitor

Domain ID domain_id	1ft8D00
Class class	3 — Alpha Beta
Architecture architecture	80 — Alpha-Beta Horseshoe
Topology topology	10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Homologous superfamily homologous superfamily	10 — Ribonuclease Inhibitor

Domain ID domain_id	1ft8E00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	330 — RRM (RNA recognition motif) domain

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Unit-cell length a length_a	139.918 Å
Unit-cell length b length_b	139.918 Å
Unit-cell length c length_c	206.703 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	40

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

Resolution resolution	3.150 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.3030
R_work r_work	0.3030
R_free r_free	0.3030

Description description	TIP ASSOCIATING PROTEIN
Molecular weight formula_weight	30802.2 kDa
Mutation mutation	C119W,A226V
Source method src_method	man
Copy count entity_count	5

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E
Atom count atom_count	6913

CRYSTAL STRUCTURE OF THE RNA-BINDING DOMAIN OF THE MRNA EXPORT FACTOR TAP

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

TIP ASSOCIATING PROTEIN

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

1ft8__assembly_4__model_1

1ft8__assembly_4__model_1 | I(q)

1ft8__assembly_4__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

CATH v4.4 (7 domains)

7. Citations (1)

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

CRYSTAL STRUCTURE OF THE RNA-BINDING DOMAIN OF THE MRNA EXPORT FACTOR TAP

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

TIP ASSOCIATING PROTEIN

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

1ft8__assembly_4__model_1

1ft8__assembly_4__model_1 | I(q)

1ft8__assembly_4__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

CATH v4.4 (7 domains)

7. Citations (1)