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2rit

Unliganded B-specific-1,3-galactosyltransferase (GTB)

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Glycoprotein-fucosylgalactoside alpha-galactosyltransferase

Homo sapiens

UniProt P16442

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 GLYCEROL × 1 water × 1 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 GLYCEROL × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1lz0 1lz7 1wsz 1wt0 1xz6 1zhj 1zi1 1ziz 1zjo 1zjp 2a8w 2rit

47 assemblies; showing the first 12

Homodimer
1lz0 1lz7 1wsz 1wt0 1xz6 1zhj 1zi1 1ziz 1zjo 1zjp 2a8w 2pgv

78 assemblies; showing the first 12

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1lzi 1lzi 1r7t 1r7t 1r7u 1r7u 1r7v 1r7v 1r7x 1r7x 1r7y 1r7y

49 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name BGAT_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 3–293； UniProt 64–354

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_id2rit
Deposition date deposition_date2007-10-12
Structure title titleUnliganded B-specific-1,3-galactosyltransferase (GTB)
Keywords keywords;GTB ABO Rossman fold BBBB unliganded, Blood group antigen, Glycoprotein, Glycosyltransferase, Golgi apparatus, Manganese, Membrane, Metal-binding, Secreted, Signal-anchor, Transferase, Transmembrane ;; TRANSFERASE
Experimental Method methodX-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.

2rit__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2rit__assembly_2__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2rit__assembly_2__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）26.34 Å
Rg (electron density)25.28 Å
Total Rg26.20 Å
Atom count4586
Residues560
Excluded volume82229 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2rit__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 2rit__assembly_2__model_1 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)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2rita2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.68 — Nucleotide-diphospho-sugar transferases
Superfamily Superfamily superfamilyc.68.1 — Nucleotide-diphospho-sugar transferases
Family Family familyc.68.1.9 — alpha-1,3-galactosyltransferase-like
Domain ID domain_idd2rita3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id2ritA00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology550 — Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
Homologous superfamily homologous superfamily10 — Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
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7. Citations (1)