2poc

The crystal structure of isomerase domain of glucosamine-6-phosphate synthase from Candida albicans

Method: X-RAY DIFFRACTION

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

isomerase domain of glutamine-fructose-6-phosphate transaminase (isomerizing)

Candida albicans

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	6-O-phosphono-beta-D-glucopyranose × 4 SODIUM ION × 4 URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE × 4 ACETATE ION × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GFA1_CANAL
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–367； UniProt 347–713 Author chain B； PDBConstruct 1–367； UniProt 347–713 Author chain C； PDBConstruct 1–367； UniProt 347–713 Author chain D； PDBConstruct 1–367； UniProt 347–713

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	2poc
Deposition date deposition_date	2007-04-26
Structure title title	The crystal structure of isomerase domain of glucosamine-6-phosphate synthase from Candida albicans
Keywords keywords	glucosamine-6-phosphate synthase; aldose/ketose isomerase; crystal structure; Rossmann-like fold;, TRANSFERASE; TRANSFERASE
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.

2poc__assembly_1__model_1

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

Download this curve (.dat)

2poc__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2poc__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.62 Å
Rg (electron density)	36.42 Å
Total Rg	36.68 Å
Atom count	10939
Residues	1383
Excluded volume	195570 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2poc__assembly_1__model_1`	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 (6)

Entity 1 Entity 1 polymer

Description description	isomerase domain of glutamine-fructose-6-phosphate transaminase (isomerizing)
Molecular weight formula_weight	40614.7 kDa
EC 编号 ec_number	2.6.1.16
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	11928

MKGPYKHFMQKEIFEQPDSAFNTMRGRIDFENCVVTLGGLKSWLSTIRRCRRIIMIACGTSYHSCLATRSIFEELTEIPVSVELASDFLDRRSPVFRDDTCVFVSQSGETADSILALQYCLERGALTVGIVNSVGSSMSRQTHCGVHINAGPEIGVASTKAYTSQYIALVMFALSLSNDSISRKGRHEEIIKGLQKIPEQIKQVLKLENKIKDLCNSSLNDQKSLLLLGRGYQFATALEGALKIKEISYMHSEGVLAGELKHGILALVDEDLPIIAFATRDSLFPKVMSAIEQVTARDGRPIVICNEGDAIISNDKVHTTLEVPETVDCLQGLLNVIPLQLISYWLAVNRGIDVDFPRNLAKSVTVE

Source Source

Source organism organism	Candida albicans
NCBI taxonomy ID ncbi_taxonomy_id	237561
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	6-O-phosphono-beta-D-glucopyranose
Molecular weight formula_weight	260.1 kDa
Source method src_method	man
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE
Molecular weight formula_weight	607.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	892

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2poca_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.80 — SIS domain
Superfamily Superfamily superfamily	c.80.1 — SIS domain
Family Family family	c.80.1.0 — automated matches

Domain ID domain_id	d2pocb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.80 — SIS domain
Superfamily Superfamily superfamily	c.80.1 — SIS domain
Family Family family	c.80.1.0 — automated matches

Domain ID domain_id	d2pocc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.80 — SIS domain
Superfamily Superfamily superfamily	c.80.1 — SIS domain
Family Family family	c.80.1.0 — automated matches

Domain ID domain_id	d2pocd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.80 — SIS domain
Superfamily Superfamily superfamily	c.80.1 — SIS domain
Family Family family	c.80.1.0 — automated matches

CATH v4.4 (8 domains)

Domain ID domain_id	2pocA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocC02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocD01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	2pocD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

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Unit-cell length a length_a	65.977 Å
Unit-cell length b length_b	117.832 Å
Unit-cell length c length_c	99.711 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	91.60 °
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	1.800 Å
Low-resolution limit resolution_low	19.940 Å
R factor r_factor	0.1753
R_work r_work	0.1747
R_free r_free	0.2064

The crystal structure of isomerase domain of glucosamine-6-phosphate synthase from Candida albicans

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

isomerase domain of glutamine-fructose-6-phosphate transaminase (isomerizing)

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

2poc__assembly_1__model_1

2poc__assembly_1__model_1 | I(q)

2poc__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)

The crystal structure of isomerase domain of glucosamine-6-phosphate synthase from Candida albicans

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

isomerase domain of glutamine-fructose-6-phosphate transaminase (isomerizing)

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

2poc__assembly_1__model_1

2poc__assembly_1__model_1 | I(q)

2poc__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)