1egh

STRUCTURE OF METHYLGLYOXAL SYNTHASE COMPLEXED WITH THE COMPETITIVE INHIBITOR 2-PHOSPHOGLYCOLATE

Method: X-RAY DIFFRACTION

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

METHYLGLYOXAL SYNTHASE

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	2-PHOSPHOGLYCOLIC ACID × 6 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MGSA_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–152； UniProt 1–152 Author chain B； PDBConstruct 1–152； UniProt 1–152 Author chain C； PDBConstruct 1–152； UniProt 1–152 Author chain D； PDBConstruct 1–152； UniProt 1–152 Author chain E； PDBConstruct 1–152； UniProt 1–152 Author chain F； PDBConstruct 1–152； UniProt 1–152

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	1egh
Deposition date deposition_date	2000-02-15
Structure title title	STRUCTURE OF METHYLGLYOXAL SYNTHASE COMPLEXED WITH THE COMPETITIVE INHIBITOR 2-PHOSPHOGLYCOLATE
Keywords keywords	beta/alpha protein, LYASE; LYASE
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.

1egh__assembly_1__model_1

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

Download this curve (.dat)

1egh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1egh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.91 Å
Rg (electron density)	27.70 Å
Total Rg	28.50 Å
Atom count	7022
Residues	910
Excluded volume	125440 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1egh__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	METHYLGLYOXAL SYNTHASE
Molecular weight formula_weight	16937.5 kDa
EC 编号 ec_number	4.2.3.3
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	7322

MELTTRTLPARKHIALVAHDHCKQMLMSWVERHQPLLEQHVLYATGTTGNLISRATGMNVNAMLSGPMGGDQQVGALISEGKIDVLIFFWDPLNAVPHDPDVKALLRLATVWNIPVATNVATADFIIQSPHFNDAVDILIPDYQRYLADRLK

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	2-PHOSPHOGLYCOLIC ACID
Molecular weight formula_weight	156.0 kDa
Source method src_method	man
Copy count entity_count	6

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	300

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1egha_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

Domain ID domain_id	d1eghb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

Domain ID domain_id	d1eghc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

Domain ID domain_id	d1eghd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

Domain ID domain_id	d1eghe_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

Domain ID domain_id	d1eghf_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.2 — Methylglyoxal synthase, MgsA

CATH v4.4 (6 domains)

Domain ID domain_id	1eghA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1eghB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1eghC00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1eghD00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1eghE00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1eghF00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

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Unit-cell length a length_a	53.120 Å
Unit-cell length b length_b	129.870 Å
Unit-cell length c length_c	178.550 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	24

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.1870
R_work r_work	0.1870
R_free r_free	0.2190

STRUCTURE OF METHYLGLYOXAL SYNTHASE COMPLEXED WITH THE COMPETITIVE INHIBITOR 2-PHOSPHOGLYCOLATE

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

METHYLGLYOXAL SYNTHASE

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

1egh__assembly_1__model_1

1egh__assembly_1__model_1 | I(q)

1egh__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 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

STRUCTURE OF METHYLGLYOXAL SYNTHASE COMPLEXED WITH THE COMPETITIVE INHIBITOR 2-PHOSPHOGLYCOLATE

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

METHYLGLYOXAL SYNTHASE

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

1egh__assembly_1__model_1

1egh__assembly_1__model_1 | I(q)

1egh__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 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)