SAXSdb — 1ex7

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

GUANYLATE KINASE

Saccharomyces cerevisiae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	SULFATE ION × 2 GUANOSINE-5'-MONOPHOSPHATE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KGUA_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–186； UniProt 1–186

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	1ex7
Deposition date deposition_date	2000-05-01
Structure title title	CRYSTAL STRUCTURE OF YEAST GUANYLATE KINASE IN COMPLEX WITH GUANOSINE-5'-MONOPHOSPHATE
Keywords keywords	GUANYLATE KINASE, SUBSTRATE-INDUCED FIT, DOMAIN MOVEMENT, GMP, ATP, SUBSTRATE SPECIFICITY, 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.

1ex7__assembly_1__model_1

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

Download this curve (.dat)

1ex7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ex7__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.62 Å
Rg (electron density)	16.47 Å
Total Rg	17.53 Å
Atom count	1480
Residues	186
Excluded volume	26225 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ex7__assembly_1__model_1`	monomeric （1）	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 (4)

Entity 1 Entity 1 polymer

Description description	GUANYLATE KINASE
Molecular weight formula_weight	20533.2 kDa
EC 编号 ec_number	2.7.4.8
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1688

SRPIVISGPSGTGKSTLLKKLFAEYPDSFGFSVSSTTRTPRAGEVNGKDYNFVSVDEFKSMIKNNEFIEWAQFSGNYYGSTVASVKQVSKSGKTCILDIDMQGVKSVKAIPELNARFLFIAPPSVEDLKKRLEGRGTETEESINKRLSAAQAELAYAETGAHDKVIVNDDLDKAYKELKDFIFAEK

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 BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	GUANOSINE-5'-MONOPHOSPHATE
Molecular weight formula_weight	363.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	208

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1ex7a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.1 — Nucleotide and nucleoside kinases

CATH v4.4 (2 domains)

Domain ID domain_id	1ex7A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	63 — Guanylate Kinase phosphate binding domain
Homologous superfamily homologous superfamily	10 — Guanylate Kinase phosphate binding domain

Domain ID domain_id	1ex7A02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

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Unit-cell length a length_a	50.625 Å
Unit-cell length b length_b	50.625 Å
Unit-cell length c length_c	155.327 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	8

Space group space_group	P 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	0.1701
R_work r_work	0.1701
R_free r_free	0.2570

CRYSTAL STRUCTURE OF YEAST GUANYLATE KINASE IN COMPLEX WITH GUANOSINE-5'-MONOPHOSPHATE

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

GUANYLATE KINASE

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

1ex7__assembly_1__model_1

1ex7__assembly_1__model_1 | I(q)

1ex7__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF YEAST GUANYLATE KINASE IN COMPLEX WITH GUANOSINE-5'-MONOPHOSPHATE

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

GUANYLATE KINASE

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

1ex7__assembly_1__model_1

1ex7__assembly_1__model_1 | I(q)

1ex7__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)