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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：M1H2Q1 New Search
12PDB entries
12Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification Different assembly state Different ligand/ion Different experimental conditions 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
7SP6 Chlorella virus hyaluronan synthase Deposited 2021-11-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Mutation：D302N Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 1 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
7SP7 Chlorella virus hyaluronan synthase inhibited by UDP Deposited 2021-11-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 UDP URIDINE-5'-DIPHOSPHATE × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Sample incubated on grid 30s before blotting. Blot 4 seconds with force 4.
Resolution 3.10 Å
7SP8 Chlorella virus Hyaluronan Synthase bound to UDP-GlcNAc Deposited 2021-11-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Mutation：D302N UD1 URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE × 1 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7SP9 Chlorella virus Hyaluronan Synthase in the GlcNAc-primed channel-closed state Deposited 2021-11-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Mutation：D302N NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7SPA Chlorella virus Hyaluronan Synthase in the GlcNAc-primed, channel-open state Deposited 2021-11-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Mutation：D302N NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8SNC Chlorella virus Hyaluronan Synthase bound to GlcA extended GlcNAc primer Deposited 2023-04-27 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
8SND Chlorella virus Hyaluronan Synthase bound to GlcNAc primer and UDP-GlcA Deposited 2023-04-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Mutation：D302N 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 UGA URIDINE-5'-DIPHOSPHATE-GLUCURONIC ACID × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
8SNE Chlorella virus Hyaluronan Synthase bound to GlcA extended GlcNAc primer and UDP Deposited 2023-04-27 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded UDP URIDINE-5'-DIPHOSPHATE × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9KQC Chlorella virus Hyaluronan Synthase bound to VNAR Deposited 2024-11-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded UD1 URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE × 1 MN MANGANESE (II) ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.36 Å
9YQ2 Chlorella virus hyaluronan synthase bound to DDM Deposited 2025-10-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 2 LMT DODECYL-BETA-D-MALTOSIDE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9YQ4 Chlorella virus hyaluronan synthase bound to a proofreading UDP-GlcA Deposited 2025-10-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded UGA URIDINE-5'-DIPHOSPHATE-GLUCURONIC ACID × 1 MN MANGANESE (II) ION × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9YQ5 Chlorella virus hyaluronan synthase bound to an inserted UDP-GlcA Deposited 2025-10-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 2–561（560 aa）
Not recorded UGA URIDINE-5'-DIPHOSPHATE-GLUCURONIC ACID × 1 Y01 CHOLESTEROL HEMISUCCINATE × 1 MN MANGANESE (II) ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 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.