SAXSdb — 1ltk

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

PHOSPHOGLYCERATE 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 × 1 ADENOSINE MONOPHOSPHATE × 1 GLYCEROL × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	SULFATE ION × 1 ADENOSINE MONOPHOSPHATE × 1 water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	SULFATE ION × 1 ADENOSINE MONOPHOSPHATE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PGK_PLAF7
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 11–425； UniProt 2–416 Author chain B； PDBConstruct 11–425； UniProt 2–416 Author chain C； PDBConstruct 11–425； UniProt 2–416

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	1ltk
Deposition date deposition_date	2002-05-20
Structure title title	CRYSTAL STRUCTURE OF PHOSPHOGLYCERATE KINASE FROM PLASMODIUM FALCIPARUM, IN THE OPEN CONFORMATION
Keywords keywords	PGK, PHOSPHOGLYCERATE KINASE, GLYCOLYSIS, GLYCEROL, OPEN CONFORMATION, ADP COMPLEX, SELENOMETHIONINE, 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.

1ltk__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1ltk__assembly_3__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ltk__assembly_3__model_1 | P(r) · Pending

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

Rg（Guinier）	24.82 Å
Rg (electron density)	24.04 Å
Total Rg	24.81 Å
Atom count	3295
Residues	415
Excluded volume	59159 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ltk__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1ltk__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1ltk__assembly_3__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 (5)

Entity 1 Entity 1 polymer

Description description	PHOSPHOGLYCERATE KINASE
Molecular weight formula_weight	47022.6 kDa
EC 编号 ec_number	2.7.2.3
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	9805

GHSMHHHHHHLGNKLSISDLKDIKNKKVLVRVDFNVPIENGIIKDTNRITATLPTINHLKKEGASKIILISHCGRPDGLRNEKYTLKPVAETLKGLLGEEVLFLNDCVGKEVEDKINAAKENSVILLENLRFHIEEEGKGVDANGNKVKANKEDVEKFQNDLTKLADVFINDAFGTAHRAHSSMVGVKLNVKASGFLMKKELEYFSKALENPQRPLLAILGGAKVSDKIQLIKNLLDKVDRMIIGGGMAYTFKKVLNNMKIGTSLFDEAGSKIVGEIMEKAKAKNVQIFLPVDFKIADNFDNNANTKFVTDEEGIPDNWMGLDAGPKSIENYKDVILTSKTVIWNGPQGVFEMPNFAKGSIECLNLVVEVTKKGAITIVGGGDTASLVEQQNKKNEISHVSTGGGASLELLEGKELPGVLALSNK

Source Source

Source organism organism	Plasmodium falciparum
Common name common_name	malaria parasite P. falciparum
NCBI taxonomy ID ncbi_taxonomy_id	5833
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	3

Entity 3 Entity 3 non-polymer

Description description	ADENOSINE MONOPHOSPHATE
Molecular weight formula_weight	347.2 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	72

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1ltka1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.86 — Phosphoglycerate kinase
Superfamily Superfamily superfamily	c.86.1 — Phosphoglycerate kinase
Family Family family	c.86.1.1 — Phosphoglycerate kinase

Domain ID domain_id	d1ltka2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1ltkb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.86 — Phosphoglycerate kinase
Superfamily Superfamily superfamily	c.86.1 — Phosphoglycerate kinase
Family Family family	c.86.1.1 — Phosphoglycerate kinase

Domain ID domain_id	d1ltkb2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1ltkc1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.86 — Phosphoglycerate kinase
Superfamily Superfamily superfamily	c.86.1 — Phosphoglycerate kinase
Family Family family	c.86.1.1 — Phosphoglycerate kinase

Domain ID domain_id	d1ltkc2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (6 domains)

Domain ID domain_id	1ltkA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

Domain ID domain_id	1ltkA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

Domain ID domain_id	1ltkB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

Domain ID domain_id	1ltkB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

Domain ID domain_id	1ltkC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

Domain ID domain_id	1ltkC02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1260 — Phosphoglycerate kinase, N-terminal domain

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Unit-cell length a length_a	119.030 Å
Unit-cell length b length_b	147.610 Å
Unit-cell length c length_c	206.490 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	I 2 2 2
Space-group number int_tables_number	23
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	19.930 Å
R factor r_factor	0.2845
R_work r_work	0.2080
R_free r_free	0.2580

CRYSTAL STRUCTURE OF PHOSPHOGLYCERATE KINASE FROM PLASMODIUM FALCIPARUM, IN THE OPEN CONFORMATION

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

PHOSPHOGLYCERATE 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

1ltk__assembly_3__model_1

1ltk__assembly_3__model_1 | I(q)

1ltk__assembly_3__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF PHOSPHOGLYCERATE KINASE FROM PLASMODIUM FALCIPARUM, IN THE OPEN CONFORMATION

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

PHOSPHOGLYCERATE 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

1ltk__assembly_3__model_1

1ltk__assembly_3__model_1 | I(q)

1ltk__assembly_3__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)