2vk8

Crystal structure of the Saccharomyces cerevisiae pyruvate decarboxylase variant E477Q in complex with its substrate

Method: X-RAY DIFFRACTION

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

PYRUVATE DECARBOXYLASE ISOZYME 1

SACCHAROMYCES CEREVISIAE

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	THIAMINE DIPHOSPHATE × 2 MAGNESIUM ION × 2 (2S)-2-HYDROXYPROPANOIC ACID × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	THIAMINE DIPHOSPHATE × 2 MAGNESIUM ION × 2 (2S)-2-HYDROXYPROPANOIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PDC1_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–563； UniProt 1–563 Author chain B； PDBConstruct 1–563； UniProt 1–563 Author chain C； PDBConstruct 1–563； UniProt 1–563 Author chain D； PDBConstruct 1–563； UniProt 1–563

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	2vk8
Deposition date deposition_date	2007-12-17
Structure title title	Crystal structure of the Saccharomyces cerevisiae pyruvate decarboxylase variant E477Q in complex with its substrate
Keywords keywords	;ASYMMETRIC ACTIVE SITES, PHENYLALANINE CATABOLISM, TRYPTOPHAN CATABOLISM, THIAMINE PYROPHOSPHATE, DIMER OF DIMERS, PHOSPHORYLATION, ALLOSTERIC ENZYME, TDP, TPP, LYASE, NUCLEUS, PYRUVATE, CYTOPLASM, BRANCHED-CHAIN AMINO ACID CATABOLISM, SUBSTRATE ACTIVATION, THIAMINE DIPHOSPHATE, MAGNESIUM, ACETYLATION, METAL-BINDING, DECARBOXYLASE ;; 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.

2vk8__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2vk8__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2vk8__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	31.33 Å
Rg (electron density)	30.82 Å
Total Rg	31.48 Å
Atom count	8712
Residues	1124
Excluded volume	155820 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2vk8__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2vk8__assembly_2__model_1`	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 (5)

Entity 1 Entity 1 polymer

Description description	PYRUVATE DECARBOXYLASE ISOZYME 1
Molecular weight formula_weight	61586.0 kDa
EC 编号 ec_number	4.1.1.1
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	19242

MSEITLGKYLFERLKQVNVNTVFGLPGDFNLSLLDKIYEVEGMRWAGNANELNAAYAADGYARIKGMSCIITTFGVGELSALNGIAGSYAEHVGVLHVVGVPSISAQAKQLLLHHTLGNGDFTVFHRMSANISETTAMITDIATAPAEIDRCIRTTYVTQRPVYLGLPANLVDLNVPAKLLQTPIDMSLKPNDAESEKEVIDTILVLDKDAKNPVILADACCSRHDVKAETKKLIDLTQFPAFVTPMGKGSIDEQHPRYGGVYVGTLSKPEVKEAVESADLILSVGALLSDFNTGSFSYSYKTKNIVEFHSDHMKIRNATFPGVQMKFVLQKLLTTIADAAKGYKPVAVPARTPANAAVPASTPLKQEWMWNQLGNFLQEGDVVIAETGTSAFGINQTTFPNNTYGISQVLWGSIGFTTGATLGAAFAAEEIDPKKRVILFIGDGSLQLTVQEISTMIRWGLKPYLFVLNNDGYTIQKLIHGPKAQYNEIQGWDHLSLLPTFGAKDYETHRVATTGEWDKLTQDKSFNDNSKIRMIEVMLPVFDAPQNLVEQAKLTAATNAKQ

Source Source

Source organism organism	SACCHAROMYCES CEREVISIAE
Common name common_name	;BAKER'S YEAST ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	THIAMINE DIPHOSPHATE
Molecular weight formula_weight	425.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	(2S)-2-HYDROXYPROPANOIC ACID
Molecular weight formula_weight	90.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1818

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_id	d2vk8a1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8a2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamily	c.31.1 — DHS-like NAD/FAD-binding domain
Family Family family	c.31.1.0 — automated matches

Domain ID domain_id	d2vk8a3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8b1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8b2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamily	c.31.1 — DHS-like NAD/FAD-binding domain
Family Family family	c.31.1.0 — automated matches

Domain ID domain_id	d2vk8b3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8c1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8c2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamily	c.31.1 — DHS-like NAD/FAD-binding domain
Family Family family	c.31.1.0 — automated matches

Domain ID domain_id	d2vk8c3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8d1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

Domain ID domain_id	d2vk8d2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamily	c.31.1 — DHS-like NAD/FAD-binding domain
Family Family family	c.31.1.0 — automated matches

Domain ID domain_id	d2vk8d3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamily	c.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family family	c.36.1.0 — automated matches

CATH v4.4 (12 domains)

Domain ID domain_id	2vk8A01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8A02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1220 — TPP-binding domain

Domain ID domain_id	2vk8A03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8B01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8B02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1220 — TPP-binding domain

Domain ID domain_id	2vk8B03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8C01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8C02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1220 — TPP-binding domain

Domain ID domain_id	2vk8C03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8D01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

Domain ID domain_id	2vk8D02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1220 — TPP-binding domain

Domain ID domain_id	2vk8D03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains

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Unit-cell length a length_a	78.980 Å
Unit-cell length b length_b	190.510 Å
Unit-cell length c length_c	84.140 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	113.01 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.420 Å
Low-resolution limit resolution_low	95.350 Å
R factor r_factor	0.1810
R_work r_work	0.1810
R_free r_free	0.1860

Crystal structure of the Saccharomyces cerevisiae pyruvate decarboxylase variant E477Q in complex with its substrate

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

PYRUVATE DECARBOXYLASE ISOZYME 1

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

2vk8__assembly_2__model_1

2vk8__assembly_2__model_1 | I(q)

2vk8__assembly_2__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)

Crystal structure of the Saccharomyces cerevisiae pyruvate decarboxylase variant E477Q in complex with its substrate

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

PYRUVATE DECARBOXYLASE ISOZYME 1

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

2vk8__assembly_2__model_1

2vk8__assembly_2__model_1 | I(q)

2vk8__assembly_2__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)