SAXSdb — 1z6g

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

guanylate kinase

Plasmodium falciparum

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 × 5 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8I2M1_PLAF7
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 20–218； UniProt 1–199

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	1z6g
Deposition date deposition_date	2005-03-22
Structure title title	Crystal structure of guanylate kinase from Plasmodium falciparum
Keywords keywords	guanylate kinase, Structural Genomics, SGC, Structural Genomics Consortium, 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.

1z6g__assembly_1__model_1

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

Download this curve (.dat)

1z6g__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1z6g__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.07 Å
Rg (electron density)	16.88 Å
Total Rg	17.95 Å
Atom count	1602
Residues	191
Excluded volume	28664 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1z6g__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	25579.1 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	1733

MGSSHHHHHHSSGLVPRGSMNNIYPLVICGPSGVGKGTLIKKLLNEFPNYFYFSVSCTTRKKREKEKEGVDYYFIDKTIFEDKLKNEDFLEYDNYANNFYGTLKSEYDKAKEQNKICLFEMNINGVKQLKKSTHIKNALYIFIKPPSTDVLLSRLLTRNTENQEQIQKRMEQLNIELHEANLLNFNLSIINDDLTLTYQQLKNYLLNSYIHLNNHTRN

Source Source

Source organism organism	Plasmodium falciparum
NCBI taxonomy ID ncbi_taxonomy_id	36329
Host organism host_organism	Escherichia coli

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	5

Entity 3 Entity 3 non-polymer

Description description	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
Molecular weight formula_weight	238.3 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	131

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1z6ga_
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.37.1.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id	1z6gA01
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

Domain ID domain_id	1z6gA02
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

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Unit-cell length a length_a	41.420 Å
Unit-cell length b length_b	47.240 Å
Unit-cell length c length_c	118.245 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	4

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

Resolution resolution	2.180 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.2220
R_work r_work	0.2190
R_free r_free	0.2690

Crystal structure of guanylate kinase from Plasmodium falciparum

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

1z6g__assembly_1__model_1

1z6g__assembly_1__model_1 | I(q)

1z6g__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 guanylate kinase from Plasmodium falciparum

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

1z6g__assembly_1__model_1

1z6g__assembly_1__model_1 | I(q)

1z6g__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)