2vl6

STRUCTURAL ANALYSIS OF THE SULFOLOBUS SOLFATARICUS MCM PROTEIN N- TERMINAL DOMAIN

Method: X-RAY DIFFRACTION

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

MINICHROMOSOME MAINTENANCE PROTEIN MCM

SULFOLOBUS SOLFATARICUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	ZINC ION × 6 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM_SULSO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–268； UniProt 1–268 Author chain B； PDBConstruct 1–268； UniProt 1–268 Author chain C； PDBConstruct 1–268； UniProt 1–268

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	2vl6
Deposition date deposition_date	2008-01-08
Structure title title	STRUCTURAL ANALYSIS OF THE SULFOLOBUS SOLFATARICUS MCM PROTEIN N- TERMINAL DOMAIN
Keywords keywords	;MCM, HELICASE, HYDROLASE, ZINC-FINGER, ATP-BINDING, DNA-BINDING, SSDNA BINDING, DNA REPLICATION, NUCLEOTIDE-BINDING, DNA BINDING PROTEIN ;; DNA 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.

2vl6__assembly_1__model_1

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

Download this curve (.dat)

2vl6__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2vl6__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	41.67 Å
Rg (electron density)	40.96 Å
Total Rg	41.09 Å
Atom count	12702
Residues	1554
Excluded volume	229240 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2vl6__assembly_1__model_1`	hexameric （6）	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	MINICHROMOSOME MAINTENANCE PROTEIN MCM
Molecular weight formula_weight	31143.1 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	6389

MEIPSKQIDYRDVFIEFLTTFKGNNNQNKYIERINELVAYRKKSLIIEFSDVLSFNENLAYEIINNTKIILPILEGALYDHILQLDPTYQRDIEKVHVRIVGIPRVIELRKIRSTDIGKLITIDGILVKVTPVKERIYKATYKHIHPDCMQEFEWPEDEEMPEVLEMPTICPKCGKPGQFRLIPEKTKLIDWQKAVIQERPEEVPSGQLPRQLEIILEDDLVDSARPGDRVKVTGILDIKQDSPVKRGSRAVFDIYMKVSSIEVSQKV

Source Source

Source organism organism	SULFOLOBUS SOLFATARICUS
NCBI taxonomy ID ncbi_taxonomy_id	2287
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	38

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2vl6a_
Class class	b — All beta proteins
Fold Fold fold	b.40 — OB-fold
Superfamily Superfamily superfamily	b.40.4 — Nucleic acid-binding proteins
Family Family family	b.40.4.11 — DNA replication initiator (cdc21/cdc54) N-terminal domain

Domain ID domain_id	d2vl6b_
Class class	b — All beta proteins
Fold Fold fold	b.40 — OB-fold
Superfamily Superfamily superfamily	b.40.4 — Nucleic acid-binding proteins
Family Family family	b.40.4.11 — DNA replication initiator (cdc21/cdc54) N-terminal domain

Domain ID domain_id	d2vl6c_
Class class	b — All beta proteins
Fold Fold fold	b.40 — OB-fold
Superfamily Superfamily superfamily	b.40.4 — Nucleic acid-binding proteins
Family Family family	b.40.4.11 — DNA replication initiator (cdc21/cdc54) N-terminal domain

CATH v4.4 (9 domains)

Domain ID domain_id	2vl6A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1640 — mini-chromosome maintenance (MCM) complex, chain A, domain 1
Homologous superfamily homologous superfamily	10 — mini-chromosome maintenance (MCM) complex, chain A, domain 1

Domain ID domain_id	2vl6A02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	140 — Nucleic acid-binding proteins

Domain ID domain_id	2vl6A03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	28 — Rubrerythrin, domain 2
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	2vl6B01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1640 — mini-chromosome maintenance (MCM) complex, chain A, domain 1
Homologous superfamily homologous superfamily	10 — mini-chromosome maintenance (MCM) complex, chain A, domain 1

Domain ID domain_id	2vl6B02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	140 — Nucleic acid-binding proteins

Domain ID domain_id	2vl6B03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	28 — Rubrerythrin, domain 2
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	2vl6C01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1640 — mini-chromosome maintenance (MCM) complex, chain A, domain 1
Homologous superfamily homologous superfamily	10 — mini-chromosome maintenance (MCM) complex, chain A, domain 1

Domain ID domain_id	2vl6C02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	140 — Nucleic acid-binding proteins

Domain ID domain_id	2vl6C03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	28 — Rubrerythrin, domain 2
Homologous superfamily homologous superfamily	10 —

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Unit-cell length a length_a	193.994 Å
Unit-cell length b length_b	52.236 Å
Unit-cell length c length_c	115.574 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	124.15 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	31.880 Å
R factor r_factor	0.2360
R_work r_work	0.2330
R_free r_free	0.2830

STRUCTURAL ANALYSIS OF THE SULFOLOBUS SOLFATARICUS MCM PROTEIN N- TERMINAL DOMAIN

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

MINICHROMOSOME MAINTENANCE PROTEIN MCM

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

2vl6__assembly_1__model_1

2vl6__assembly_1__model_1 | I(q)

2vl6__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (3 domains)

CATH v4.4 (9 domains)

7. Citations (1)

STRUCTURAL ANALYSIS OF THE SULFOLOBUS SOLFATARICUS MCM PROTEIN N- TERMINAL DOMAIN

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

MINICHROMOSOME MAINTENANCE PROTEIN MCM

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

2vl6__assembly_1__model_1

2vl6__assembly_1__model_1 | I(q)

2vl6__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (3 domains)

CATH v4.4 (9 domains)

7. Citations (1)