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7tw1

Cryo-EM structure of human band 3-protein 4.2 complex (B2P2vertical)

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Band 3 anion transport protein

OrganismNot specified

UniProt P02730

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Protein 4.2 × 2 （P16452） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1bh7 1bnx 1btq 1btr 1bts 1btt 1bzk 2bta 2btb 3btb

10 assemblies

Homodimer
1hyn 1hyn 4ky9 7tw2 7uzv 7v0t 7v0u 7v0y 8csy 8t3r 8t3u 8t44

14 assemblies; showing the first 12

Homotetramer

None

Other homooligomers
1hyn

1 assemblies

Heteromeric or nucleic-acid complex
4yzf 4yzf 7tvz 7tw0 7tw1 7tw3 7tw5 7tw6 7ty4 7ty6 7ty7 7ty8

32 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name B3AT_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–911； UniProt 1–911 Author chain B； PDBConstruct 1–911； UniProt 1–911

Protein 4.2

OrganismNot specified

UniProt P16452

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Band 3 anion transport protein × 2 （P02730） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
7uzs 7v0q 8csw

3 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
7tvz 7tw0 7tw1 7tw3 7tw5 7tw6 7v0k 8cs9 8csl 8cte

10 assemblies

View Construct and Data Evidence
UniProt name EPB42_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain E； PDBConstruct 1–691； UniProt 1–691 Author chain F； PDBConstruct 1–691； UniProt 1–691

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_id7tw1
Deposition date deposition_date2022-02-06
Structure title titleCryo-EM structure of human band 3-protein 4.2 complex (B2P2vertical)
Keywords keywordsRed blood cell, Ankyrin complex, membrane protein, band 3, protein 4.2; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

7tw1__assembly_1__model_1

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

Download this curve (.dat)

7tw1__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7tw1__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）59.74 Å
Rg (electron density)59.89 Å
Total Rg59.88 Å
Atom count23625
Residues2993
Excluded volume425680 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7tw1__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 (2)

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7. Citations (1)