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1jac

A NOVEL MODE OF CARBOHYDRATE RECOGNITION IN JACALIN, A MORACEAE PLANT LECTIN WITH A BETA-PRISM

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

JACALIN

OrganismNot specified

UniProt P18670

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 8 JACALIN × 4 （P18671） methyl alpha-D-galactopyranoside × 4 water × 8 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 4 JACALIN × 2 （P18671） methyl alpha-D-galactopyranoside × 2 water × 4 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 8 JACALIN × 4 （P18671） methyl alpha-D-galactopyranoside × 4 water × 8 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1jac 1jac 1jac 1ku8 1kuj 1pxd 1ugw 1ugx 1ugy 1uh0 1uh0 1uh0

48 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name LECA_ARTIN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–133； UniProt 1–133 Author chain C； PDBConstruct 1–133； UniProt 1–133 Author chain E； PDBConstruct 1–133； UniProt 1–133 Author chain G； PDBConstruct 1–133； UniProt 1–133

JACALIN

OrganismNot specified

UniProt P18671

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 8 JACALIN × 4 （P18670） methyl alpha-D-galactopyranoside × 4 water × 8 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 4 JACALIN × 2 （P18670） methyl alpha-D-galactopyranoside × 2 water × 4 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 8 JACALIN × 4 （P18670） methyl alpha-D-galactopyranoside × 4 water × 8 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1jac 1jac 1jac 1ku8 1kuj

5 assemblies

View Construct and Data Evidence
UniProt name LEC1_ARTIN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–20； UniProt 1–20 Author chain D； PDBConstruct 1–20； UniProt 1–20 Author chain F； PDBConstruct 1–20； UniProt 1–20 Author chain H； PDBConstruct 1–20； UniProt 1–20

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_id1jac
Deposition date deposition_date1996-05-22
Structure title titleA NOVEL MODE OF CARBOHYDRATE RECOGNITION IN JACALIN, A MORACEAE PLANT LECTIN WITH A BETA-PRISM
Keywords keywordsNON-LEGUME, LECTIN, BETA-PRISM FOLD, CARBOHYDRATE SPECIFICITY, GLYCOPROTEIN; LECTIN
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.

1jac__assembly_3__model_1

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

Download this curve (.dat)

1jac__assembly_3__model_1 | I(q)

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

1jac__assembly_3__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）27.66 Å
Rg (electron density)26.78 Å
Total Rg27.53 Å
Atom count4632
Residues592
Excluded volume83023 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1jac__assembly_1__model_1 octameric （8） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1jac__assembly_2__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1jac__assembly_3__model_1 octameric （8） 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)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1jac.5
Class classb — All beta proteins
Fold Fold foldb.77 — beta-Prism I
Superfamily Superfamily superfamilyb.77.3 — Mannose-binding lectins
Family Family familyb.77.3.1 — Mannose-binding lectins
Domain ID domain_idd1jac.6
Class classb — All beta proteins
Fold Fold foldb.77 — beta-Prism I
Superfamily Superfamily superfamilyb.77.3 — Mannose-binding lectins
Family Family familyb.77.3.1 — Mannose-binding lectins
Domain ID domain_idd1jac.7
Class classb — All beta proteins
Fold Fold foldb.77 — beta-Prism I
Superfamily Superfamily superfamilyb.77.3 — Mannose-binding lectins
Family Family familyb.77.3.1 — Mannose-binding lectins
Domain ID domain_idd1jac.8
Class classb — All beta proteins
Fold Fold foldb.77 — beta-Prism I
Superfamily Superfamily superfamilyb.77.3 — Mannose-binding lectins
Family Family familyb.77.3.1 — Mannose-binding lectins

CATH v4.4 (4 domains)

Domain ID domain_id1jacA00
Class class2 — Mainly Beta
Architecture architecture100 — Aligned Prism
Topology topology10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily30 — Jacalin-like lectin domain
Domain ID domain_id1jacC00
Class class2 — Mainly Beta
Architecture architecture100 — Aligned Prism
Topology topology10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily30 — Jacalin-like lectin domain
Domain ID domain_id1jacE00
Class class2 — Mainly Beta
Architecture architecture100 — Aligned Prism
Topology topology10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily30 — Jacalin-like lectin domain
Domain ID domain_id1jacG00
Class class2 — Mainly Beta
Architecture architecture100 — Aligned Prism
Topology topology10 — Vitelline Membrane Outer Layer Protein I, subunit A
Homologous superfamily homologous superfamily30 — Jacalin-like lectin domain
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7. Citations (4)