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3gyy

The ectoine binding protein of the TeaABC TRAP transporter TeaA in the Apo-State

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

Periplasmic substrate binding protein

Halomonas elongata

UniProt Q8VPB3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 ZINC ION × 7 water × 1 Consistent with protein count
2 Protein monomer Monomer Protein 1 ZINC ION × 14 water × 1 Consistent with protein count
3 Protein monomer Monomer Protein 1 ZINC ION × 7 water × 1 Consistent with protein count
4 Protein monomer Monomer Protein 1 ZINC ION × 8 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2vpn 2vpn 2vpo 2vpo 3gyy 3gyy 3gyy 3gyy

8 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name Q8VPB3_HALEL
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–341； UniProt 1–341 Author chain B； PDBConstruct 1–341； UniProt 1–341 Author chain C； PDBConstruct 1–341； UniProt 1–341 Author chain D； PDBConstruct 1–341； UniProt 1–341

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_id3gyy
Deposition date deposition_date2009-04-06
Structure title titleThe ectoine binding protein of the TeaABC TRAP transporter TeaA in the Apo-State
Keywords keywordsvenus flytrap mechanism, TRANSPORT PROTEIN; TRANSPORT PROTEIN
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.

3gyy__assembly_1__model_1

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

Download this curve (.dat)

3gyy__assembly_1__model_1 | I(q)

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

3gyy__assembly_1__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）21.01 Å
Rg (electron density)19.59 Å
Total Rg20.55 Å
Atom count2428
Residues304
Excluded volume42973 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3gyy__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3gyy__assembly_2__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 3gyy__assembly_3__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 3gyy__assembly_4__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 (3)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3gyya_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.0 — automated matches
Domain ID domain_idd3gyyb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.0 — automated matches
Domain ID domain_idd3gyyc_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.0 — automated matches
Domain ID domain_idd3gyyd_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id3gyyA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily170 — Bacterial extracellular solute-binding protein, family 7
Domain ID domain_id3gyyB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily170 — Bacterial extracellular solute-binding protein, family 7
Domain ID domain_id3gyyC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily170 — Bacterial extracellular solute-binding protein, family 7
Domain ID domain_id3gyyD00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily170 — Bacterial extracellular solute-binding protein, family 7
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7. Citations (1)