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6xnd

Avidin-Biotin-Phenol

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

Avidin

Gallus gallus

UniProt P02701

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 4 N-[2-(2-hydroxy-5-nitrophenyl)ethyl]-5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanamide × 4 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
2c4i

1 assemblies

Homotetramer
1avd 1ave 1ij8 1ldo 1ldq 1lel 1nqn 1rav 1vyo 2a5b 2a5c 2a8g

31 assemblies; showing the first 12

Other homooligomers

None

Heteromeric or nucleic-acid complex
2mf6 3mm0 3mm0 3mm0 3mm0 4i60 7zn1 7zyl

8 assemblies

View Construct and Data Evidence
UniProt name AVID_CHICK
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–128； UniProt 25–152 Author chain B； PDBConstruct 1–128； UniProt 25–152 Author chain C； PDBConstruct 1–128； UniProt 25–152 Author chain D； PDBConstruct 1–128； UniProt 25–152

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_id6xnd
Deposition date deposition_date2020-07-02
Structure title titleAvidin-Biotin-Phenol
Keywords keywordsthe complex of Avidin and Biotin-Phenol, Structural Genomics, PSI-2, Protein Structure Initiative, STRUCTURAL PROTEIN; STRUCTURAL 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.

6xnd__assembly_1__model_1

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

Download this curve (.dat)

6xnd__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.

6xnd__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）22.65 Å
Rg (electron density)21.42 Å
Total Rg22.40 Å
Atom count3896
Residues484
Excluded volume68861 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6xnd__assembly_1__model_1 tetrameric （4） 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) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd6xnda_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.1 — Avidin/streptavidin
Domain ID domain_idd6xndb_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.1 — Avidin/streptavidin
Domain ID domain_idd6xndc_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.1 — Avidin/streptavidin
Domain ID domain_idd6xndd_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.1 — Avidin/streptavidin
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7. Citations (1)