← Back to search

Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q14EB0 New Search
9PDB entries
9Biological assembly
27chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
8Y19 Closed conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.30 Å
8Y1A 1up-1 conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8Y1B 1up-2 conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8Y1C 2up-1 conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8Y1D 2up-TM conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8Y1E 3up-TM conformation of HKU1-B S protein after incubation of the receptor Deposited 2024-01-24 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8Y1F The closed conformation of the HKU1-B S protein in the apo state Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8Y1G The 1up conformation of the HKU1-B S protein in the apo state Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.99 Å
8Y1H The 2up formation of the HKU1-B S protein in the apo state Deposited 2024-01-24 Assembly 1 Other combination Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–1290（1290 aa）
Chain B 1–1290（1290 aa）
Chain C 1–1290（1290 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 51 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.