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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：P00438 New Search
17PDB entries
22Biological assembly
22chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
1BF3 P-HYDROXYBENZOATE HYDROXYLASE (PHBH) MUTANT WITH CYS 116 REPLACED BY SER (C116S) AND ARG 42 REPLACED BY LYS (R42K), IN COMPLEX WITH FAD AND 4-HYDROXYBENZOIC ACID Deposited 1998-05-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：R42K, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 30 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.20 Å
1BGJ P-HYDROXYBENZOATE HYDROXYLASE (PHBH) MUTANT WITH CYS 116 REPLACED BY SER (C116S) AND HIS 162 REPLACED BY ARG (H162R), IN COMPLEX WITH FAD AND 4-HYDROXYBENZOIC ACID Deposited 1998-05-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：C116S, H162R FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 30 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 3.00 Å
1BGN P-HYDROXYBENZOATE HYDROXYLASE (PHBH) MUTANT WITH CYS 116 REPLACED BY SER (C116S) AND ARG 269 REPLACED BY THR (R269T), IN COMPLEX WITH FAD AND 4-HYDROXYBENZOIC ACID Deposited 1998-05-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：C116S, R269T FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 30 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.00 Å
1BKW p-Hydroxybenzoate hydroxylase (phbh) mutant with cys116 replaced by ser (c116s) and arg44 replaced by lys (r44k), in complex with fad and 4-hydroxybenzoic acid Deposited 1998-07-13 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：R44K, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 PHB P-HYDROXYBENZOIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.20 Å
1BKW p-Hydroxybenzoate hydroxylase (phbh) mutant with cys116 replaced by ser (c116s) and arg44 replaced by lys (r44k), in complex with fad and 4-hydroxybenzoic acid Deposited 1998-07-13 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：R44K, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.20 Å
1CC4 PHE161 AND ARG166 VARIANTS OF P-HYDROXYBENZOATE HYDROXYLASE. IMPLICATIONS FOR NADPH RECOGNITION AND STRUCTURAL STABILITY. Deposited 1999-03-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：F161A, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 PHB P-HYDROXYBENZOIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.0
Resolution 2.00 Å
1CC4 PHE161 AND ARG166 VARIANTS OF P-HYDROXYBENZOATE HYDROXYLASE. IMPLICATIONS FOR NADPH RECOGNITION AND STRUCTURAL STABILITY. Deposited 1999-03-04 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：F161A, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.0
Resolution 2.00 Å
1CC6 PHE161 AND ARG166 VARIANTS OF P-HYDROXYBENZOATE HYDROXYLASE. IMPLICATIONS FOR NADPH RECOGNITION AND STRUCTURAL STABILITY. Deposited 1999-03-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–394（394 aa）
Mutation：R166S, C116S FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 PHB P-HYDROXYBENZOIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.0
Resolution 2.20 Å
1CJ2 MUTANT GLN34ARG OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–391（391 aa）
Mutation：Q34R FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.80 Å
1CJ2 MUTANT GLN34ARG OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–391（391 aa）
Mutation：Q34R FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUMSULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.80 Å
1CJ3 MUTANT TYR38GLU OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–392（392 aa）
Mutation：Y38E FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUM SULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.50 Å
1CJ3 MUTANT TYR38GLU OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–392（392 aa）
Mutation：Y38E FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUM SULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.50 Å
1CJ4 MUTANT Q34T OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–392（392 aa）
Mutation：Q34T FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUM SULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.40 Å
1CJ4 MUTANT Q34T OF PARA-HYDROXYBENZOATE HYDROXYLASE Deposited 1999-04-21 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–392（392 aa）
Mutation：Q34T FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；39% AMMONIUM SULFATE, 100 MM SODIUM PHOSPHATE, 0.04 MM FAD, 0.15 MM EDTA, 60 MM SODIUM SULFITE, 1 MM P-HYDROXYBENZOATE, pH 7.0
Resolution 2.40 Å
1PBB CRYSTAL STRUCTURES OF WILD-TYPE P-HYDROXYBENZOATE HYDROXYLASE COMPLEXED WITH 4-AMINOBENZOATE, 2,4-DIHYDROXYBENZOATE AND 2-HYDROXY-4-AMINOBENZOATE AND OF THE TRY222ALA MUTANT, COMPLEXED WITH 2-HYDROXY-4-AMINOBENZOATE. EVIDENCE FOR A PROTON CHANNEL AND A NEW BINDING MODE OF THE FLAVIN RING Deposited 1994-07-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 DOB 2,4-DIHYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1PBC CRYSTAL STRUCTURES OF WILD-TYPE P-HYDROXYBENZOATE HYDROXYLASE COMPLEXED WITH 4-AMINOBENZOATE, 2,4-DIHYDROXYBENZOATE AND 2-HYDROXY-4-AMINOBENZOATE AND OF THE TRY222ALA MUTANT, COMPLEXED WITH 2-HYDROXY-4-AMINOBENZOATE. EVIDENCE FOR A PROTON CHANNEL AND A NEW BINDING MODE OF THE FLAVIN RING Deposited 1994-07-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 BHA 2-HYDROXY-4-AMINOBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.80 Å
1PBD CRYSTAL STRUCTURES OF WILD-TYPE P-HYDROXYBENZOATE HYDROXYLASE COMPLEXED WITH 4-AMINOBENZOATE, 2,4-DIHYDROXYBENZOATE AND 2-HYDROXY-4-AMINOBENZOATE AND OF THE TRY222ALA MUTANT, COMPLEXED WITH 2-HYDROXY-4-AMINOBENZOATE. EVIDENCE FOR A PROTON CHANNEL AND A NEW BINDING MODE OF THE FLAVIN RING Deposited 1994-07-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PAB 4-AMINOBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
1PBE CRYSTAL STRUCTURE OF THE P-HYDROXYBENZOATE HYDROXYLASE-SUBSTRATE COMPLEX REFINED AT 1.9 ANGSTROMS RESOLUTION. ANALYSIS OF THE ENZYME-SUBSTRATE AND ENZYME-PRODUCT COMPLEXES Deposited 1994-07-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.90 Å
1PBF CRYSTAL STRUCTURES OF WILD-TYPE P-HYDROXYBENZOATE HYDROXYLASE COMPLEXED WITH 4-AMINOBENZOATE, 2,4-DIHYDROXYBENZOATE AND 2-HYDROXY-4-AMINOBENZOATE AND OF THE TRY222ALA MUTANT, COMPLEXED WITH 2-HYDROXY-4-AMINOBENZOATE. EVIDENCE FOR A PROTON CHANNEL AND A NEW BINDING MODE OF THE FLAVIN RING Deposited 1994-07-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 BHA 2-HYDROXY-4-AMINOBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.70 Å
1PDH CRYSTAL STRUCTURE OF P-HYDROXYBENZOATE HYDROXYLASE RECONSTITUTED WITH THE MODIFIED FAD PRESENT IN ALCOHOL OXIDASE FROM METHYLOTROPHIC YEASTS: EVIDENCE FOR AN ARABINOFLAVIN Deposited 1994-12-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAS ARABINO-FLAVIN-ADENINE DINUCLEOTIDE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.10 Å
1PHH CRYSTAL STRUCTURE OF P-HYDROXYBENZOATE HYDROXYLASE COMPLEXED WITH ITS REACTION PRODUCT 3,4-DIHYDROXYBENZOATE Deposited 1987-11-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 DHB 3,4-DIHYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
2PHH THE COENZYME ANALOGUE ADENOSINE 5-DIPHOSPHORIBOSE DISPLACES FAD IN THE ACTIVE SITE OF P-HYDROXYBENZOATE HYDROXYLASE. AN X-RAY CRYSTALLOGRAPHIC INVESTIGATION Deposited 1989-06-19 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–394（394 aa）
Not recorded APR ADENOSINE-5-DIPHOSPHORIBOSE × 2 PHB P-HYDROXYBENZOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.70 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.