1qey

NMR Structure Determination of the Tetramerization Domain of the MNT Repressor: An Asymmetric A-Helical Assembly in Slow Exchange

Method: SOLUTION NMR

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

PROTEIN (REGULATORY PROTEIN MNT)

Enterobacteria phage P22

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RMNT_BPP22
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–31； UniProt 52–82 Author chain B； PDBConstruct 1–31； UniProt 52–82 Author chain C； PDBConstruct 1–31； UniProt 52–82 Author chain D； PDBConstruct 1–31； UniProt 52–82

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	1qey
Deposition date deposition_date	1999-04-03
Structure title title	NMR Structure Determination of the Tetramerization Domain of the MNT Repressor: An Asymmetric A-Helical Assembly in Slow Exchange
Keywords keywords	OLIGOMERIZATION, TRANSCRIPTIONAL CONTROL, P22 MNT REPRESSOR, GENE REGULATION; GENE REGULATION
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.

1qey__assembly_1__model_23

Assembly 1 · Model 23 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1qey__assembly_1__model_23 | I(q)

100 plotted points; both axes use logarithmic scales.

1qey__assembly_1__model_23 | P(r) · Pending

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

Rg（Guinier）	17.26 Å
Rg (electron density)	15.97 Å
Total Rg	17.05 Å
Atom count	2096
Residues	124
Excluded volume	18459 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1qey__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1qey__assembly_1__model_2`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1qey__assembly_1__model_3`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1qey__assembly_1__model_4`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1qey__assembly_1__model_5`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1qey__assembly_1__model_6`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1qey__assembly_1__model_7`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1qey__assembly_1__model_8`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1qey__assembly_1__model_9`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1qey__assembly_1__model_10`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1qey__assembly_1__model_11`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1qey__assembly_1__model_12`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1qey__assembly_1__model_13`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1qey__assembly_1__model_14`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1qey__assembly_1__model_15`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1qey__assembly_1__model_16`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1qey__assembly_1__model_17`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1qey__assembly_1__model_18`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1qey__assembly_1__model_19`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1qey__assembly_1__model_20`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	21	`1qey__assembly_1__model_21`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	22	`1qey__assembly_1__model_22`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	23	`1qey__assembly_1__model_23`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	24	`1qey__assembly_1__model_24`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	25	`1qey__assembly_1__model_25`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	26	`1qey__assembly_1__model_26`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	27	`1qey__assembly_1__model_27`	tetrameric （4）	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) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1qeya_
Class class	h — Coiled coil proteins
Fold Fold fold	h.2 — Tetramerization domain of the Mnt repressor
Superfamily Superfamily superfamily	h.2.1 — Tetramerization domain of the Mnt repressor
Family Family family	h.2.1.1 — Tetramerization domain of the Mnt repressor

Domain ID domain_id	d1qeyb_
Class class	h — Coiled coil proteins
Fold Fold fold	h.2 — Tetramerization domain of the Mnt repressor
Superfamily Superfamily superfamily	h.2.1 — Tetramerization domain of the Mnt repressor
Family Family family	h.2.1.1 — Tetramerization domain of the Mnt repressor

Domain ID domain_id	d1qeyc_
Class class	h — Coiled coil proteins
Fold Fold fold	h.2 — Tetramerization domain of the Mnt repressor
Superfamily Superfamily superfamily	h.2.1 — Tetramerization domain of the Mnt repressor
Family Family family	h.2.1.1 — Tetramerization domain of the Mnt repressor

Domain ID domain_id	d1qeyd_
Class class	h — Coiled coil proteins
Fold Fold fold	h.2 — Tetramerization domain of the Mnt repressor
Superfamily Superfamily superfamily	h.2.1 — Tetramerization domain of the Mnt repressor
Family Family family	h.2.1.1 — Tetramerization domain of the Mnt repressor

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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	—

Description description	PROTEIN (REGULATORY PROTEIN MNT)
Molecular weight formula_weight	3693.2 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	56592

Source organism organism	Enterobacteria phage P22
NCBI taxonomy ID ncbi_taxonomy_id	10754
Host organism host_organism	Escherichia coli

NMR Structure Determination of the Tetramerization Domain of the MNT Repressor: An Asymmetric A-Helical Assembly in Slow Exchange

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

PROTEIN (REGULATORY PROTEIN MNT)

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

1qey__assembly_1__model_23

1qey__assembly_1__model_23 | I(q)

1qey__assembly_1__model_23 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (4)

NMR Structure Determination of the Tetramerization Domain of the MNT Repressor: An Asymmetric A-Helical Assembly in Slow Exchange

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

PROTEIN (REGULATORY PROTEIN MNT)

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

1qey__assembly_1__model_23

1qey__assembly_1__model_23 | I(q)

1qey__assembly_1__model_23 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (4)