1ekz

NMR STRUCTURE OF THE COMPLEX BETWEEN THE THIRD DSRBD FROM DROSOPHILA STAUFEN AND A RNA HAIRPIN

Method: SOLUTION NMR

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

MATERNAL EFFECT PROTEIN (STAUFEN)

Drosophila melanogaster

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Monomer	Protein 1 RNA 1	STAUFEN DOUBLE-STRANDED RNA BINDING DOMAIN × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	STAU_DROME
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A； PDBConstruct 1–76； UniProt 571–646

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	1ekz
Deposition date deposition_date	2000-03-11
Structure title title	NMR STRUCTURE OF THE COMPLEX BETWEEN THE THIRD DSRBD FROM DROSOPHILA STAUFEN AND A RNA HAIRPIN
Keywords keywords	protein/RNA, protein dsRBD, Drosophila, RNA hairpin, cell cycle-RNA COMPLEX; cell cycle/RNA
Experimental Method method	SOLUTION NMR

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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.

1ekz__assembly_1__model_24

Assembly 1 · Model 24 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1ekz__assembly_1__model_24 | I(q)

100 plotted points; both axes use logarithmic scales.

1ekz__assembly_1__model_24 | P(r) · Pending

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

Rg（Guinier）	18.60 Å
Rg (electron density)	17.92 Å
Total Rg	18.68 Å
Atom count	2173
Residues	106
Excluded volume	19635 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ekz__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1ekz__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1ekz__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1ekz__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1ekz__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1ekz__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1ekz__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1ekz__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1ekz__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1ekz__assembly_1__model_10`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1ekz__assembly_1__model_11`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1ekz__assembly_1__model_12`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1ekz__assembly_1__model_13`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1ekz__assembly_1__model_14`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1ekz__assembly_1__model_15`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1ekz__assembly_1__model_16`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1ekz__assembly_1__model_17`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1ekz__assembly_1__model_18`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1ekz__assembly_1__model_19`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1ekz__assembly_1__model_20`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	21	`1ekz__assembly_1__model_21`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	22	`1ekz__assembly_1__model_22`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	23	`1ekz__assembly_1__model_23`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	24	`1ekz__assembly_1__model_24`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	25	`1ekz__assembly_1__model_25`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	26	`1ekz__assembly_1__model_26`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	27	`1ekz__assembly_1__model_27`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	28	`1ekz__assembly_1__model_28`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	29	`1ekz__assembly_1__model_29`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	30	`1ekz__assembly_1__model_30`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	31	`1ekz__assembly_1__model_31`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	32	`1ekz__assembly_1__model_32`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	33	`1ekz__assembly_1__model_33`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	34	`1ekz__assembly_1__model_34`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	35	`1ekz__assembly_1__model_35`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	36	`1ekz__assembly_1__model_36`	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 (2)

Entity 1 Entity 1 polymer

Description description	STAUFEN DOUBLE-STRANDED RNA BINDING DOMAIN
Molecular weight formula_weight	9612.7 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	B
Atom count atom_count	78228

GGACAGCUGUCCCUUCGGGGACAGCUGUCC

Entity 2 Entity 2 polymer

Description description	MATERNAL EFFECT PROTEIN (STAUFEN)
Molecular weight formula_weight	8464.0 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A

MDEGDKKSPISQVHEIGIKRNMTVHFKVLREEGPAHMKNFITACIVGSIVTEGEGNGKKVSKKRAAEKMLVELQKL

Source Source

Source organism organism	Drosophila melanogaster
Common name common_name	fruit fly
NCBI taxonomy ID ncbi_taxonomy_id	7227
Host organism host_organism	Escherichia coli

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1ekza_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.50 — dsRBD-like
Superfamily Superfamily superfamily	d.50.1 — dsRNA-binding domain-like
Family Family family	d.50.1.1 — Double-stranded RNA-binding domain (dsRBD)

CATH v4.4 (1 domains)

Domain ID domain_id	1ekzA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	160 — Double Stranded RNA Binding Domain
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

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

NMR STRUCTURE OF THE COMPLEX BETWEEN THE THIRD DSRBD FROM DROSOPHILA STAUFEN AND A RNA HAIRPIN

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

MATERNAL EFFECT PROTEIN (STAUFEN)

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

1ekz__assembly_1__model_24

1ekz__assembly_1__model_24 | I(q)

1ekz__assembly_1__model_24 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

NMR STRUCTURE OF THE COMPLEX BETWEEN THE THIRD DSRBD FROM DROSOPHILA STAUFEN AND A RNA HAIRPIN

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

MATERNAL EFFECT PROTEIN (STAUFEN)

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

1ekz__assembly_1__model_24

1ekz__assembly_1__model_24 | I(q)

1ekz__assembly_1__model_24 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)