SAXSdb — 2q4l

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

Probable galactose-1-phosphate uridyl transferase

Arabidopsis thaliana

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 4 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GALT_ARATH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–351； UniProt 1–351 Author chain B； PDBConstruct 1–351； UniProt 1–351

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	2q4l
Deposition date deposition_date	2007-05-31
Structure title title	Ensemble refinement of the crystal structure of GALT-like protein from Arabidopsis thaliana At5g18200
Keywords keywords	;Ensemble Refinement, Refinement Methodology Development, GALT, AT5G18200, Structural Genomics, Protein Structure Initiative, PSI, Center for Eukaryotic Structural Genomics, CESG, 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.

2q4l__assembly_1__model_1

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

Download this curve (.dat)

2q4l__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2q4l__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.93 Å
Rg (electron density)	24.80 Å
Total Rg	25.71 Å
Atom count	4760
Residues	600
Excluded volume	85144 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2q4l__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`2q4l__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`2q4l__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`2q4l__assembly_1__model_4`	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 (3)

Entity 1 Entity 1 polymer

Description description	Probable galactose-1-phosphate uridyl transferase
Molecular weight formula_weight	39053.2 kDa
EC 编号 ec_number	2.7.7.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	19940

MTSPSHASDRGGGDGDSVENQSPELRKDPVTNRWVIFSPARAKRPTDFKSKSPQNPNPKPSSCPFCIGREQECAPELFRVPDHDPNWKLRVIENLYPALSRNLETQSTQPETGTSRTIVGFGFHDVVIESPVHSIQLSDIDPVGIGDILIAYKKRINQIAQHDSINYIQVFKNQGASAGASMSHSHSQMMALPVVPPTVSSRLDGTKDYFEETGKCCLCEAKSKHFVIDESSHFVSVAPFAATYPFEIWIIPKDHSSHFHHLDDVKAVDLGGLLKLMLQKIAKQLNDPPYNYMIHTSPLKVTESQLPYTHWFLQIVPQLSGVGGFEIGTGCYINPVFPEDVAKVMREVSLT

Source Source

Source organism organism	Arabidopsis thaliana
Common name common_name	thale cress
NCBI taxonomy ID ncbi_taxonomy_id	3702
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	225

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2q4la1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.13 — HIT-like
Superfamily Superfamily superfamily	d.13.1 — HIT-like
Family Family family	d.13.1.2 — Hexose-1-phosphate uridylyltransferase

Domain ID domain_id	d2q4la2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.13 — HIT-like
Superfamily Superfamily superfamily	d.13.1 — HIT-like
Family Family family	d.13.1.2 — Hexose-1-phosphate uridylyltransferase

Domain ID domain_id	d2q4lb1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.13 — HIT-like
Superfamily Superfamily superfamily	d.13.1 — HIT-like
Family Family family	d.13.1.2 — Hexose-1-phosphate uridylyltransferase

Domain ID domain_id	d2q4lb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.13 — HIT-like
Superfamily Superfamily superfamily	d.13.1 — HIT-like
Family Family family	d.13.1.2 — Hexose-1-phosphate uridylyltransferase

CATH v4.4 (4 domains)

Domain ID domain_id	2q4lA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	428 — HIT family, subunit A
Homologous superfamily homologous superfamily	10 — HIT-like

Domain ID domain_id	2q4lA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	428 — HIT family, subunit A
Homologous superfamily homologous superfamily	10 — HIT-like

Domain ID domain_id	2q4lB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	428 — HIT family, subunit A
Homologous superfamily homologous superfamily	10 — HIT-like

Domain ID domain_id	2q4lB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	428 — HIT family, subunit A
Homologous superfamily homologous superfamily	10 — HIT-like

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Unit-cell length a length_a	59.984 Å
Unit-cell length b length_b	95.535 Å
Unit-cell length c length_c	110.522 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 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	27.260 Å
R factor r_factor	0.1900
R_work r_work	0.1900
R_free r_free	0.2700

Ensemble refinement of the crystal structure of GALT-like protein from Arabidopsis thaliana At5g18200

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

Probable galactose-1-phosphate uridyl transferase

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

2q4l__assembly_1__model_1

2q4l__assembly_1__model_1 | I(q)

2q4l__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)

Ensemble refinement of the crystal structure of GALT-like protein from Arabidopsis thaliana At5g18200

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

Probable galactose-1-phosphate uridyl transferase

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

2q4l__assembly_1__model_1

2q4l__assembly_1__model_1 | I(q)

2q4l__assembly_1__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)