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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：P11987 New Search
29PDB entries
30Biological assembly
60chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
1FYZ METHANE MONOOXYGENASE HYDROXYLASE, FORM II REDUCED BY SOAKING Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE2 FE (II) ION × 4 CA CALCIUM ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid. pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298 K
Resolution 2.15 Å R-free 0.230
1FZ0 METHANE MONOOXYGENASE HYDROXYLASE, FORM II MIXED-VALENT GROWN ANAEROBICALLY Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE2 FE (II) ION × 4 CA CALCIUM ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.07 Å R-free 0.230
1FZ1 METHANE MONOOXYGENASE HYDROXYLASE, FORM III OXIDIZED Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 4 FMT FORMIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.96 Å R-free 0.234
1FZ2 METHANE MONOOXYGENASE HYDROXYLASE, FORM II MIXED-VALENT GENERATED BY CRYSTAL SOAKING Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE2 FE (II) ION × 4 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.15 Å R-free 0.229
1FZ3 METHANE MONOOXYGENASE HYDROXYLASE, FORM III SOAK AT PH 6.2 (0.1 M PIPES) Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 FMT FORMIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.03 Å R-free 0.228
1FZ4 METHANE MONOOXYGENASE HYDROXYLASE, FORM III SOAKED AT PH 8.5 (0.1 M TRIS) Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 FMT FORMIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid. pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298 K
Resolution 2.38 Å R-free 0.256
1FZ5 METHANE MONOOXYGENASE HYDROXYLASE, FORM II CRYSTALLIZED ANAEROBICALLY FROM REDUCED ENZYME Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE2 FE (II) ION × 2 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid. pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298 K
Resolution 2.40 Å R-free 0.253
1FZ6 METHANE MONOOXYGENASE HYDROXYLASE, FORM II SOAKED IN 1 M METHANOL Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 MOH METHANOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298K, VAPOR DIFFUSION, HANGING DROP
Resolution 2.05 Å R-free 0.244
1FZ7 METHANE MONOOXYGENASE HYDROXYLASE, FORM III SOAKED IN 0.9 M ETHANOL Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 FMT FORMIC ACID × 1 EOH ETHANOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid. pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298 K
Resolution 1.96 Å R-free 0.255
1FZ8 METHANE MONOOXYGENASE HYDROXYLASE, FORM II COCRYSTALLIZED WITH DIBROMOMETHANE Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 2BM DIBROMOMETHANE × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, dibromomethane, pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.10 Å R-free 0.250
1FZ9 Methane monooxygenase hydroxylase, form II cocrystallized with iodoethane Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 3 ETI IODOETHANE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG 8000, CaCl2, MOPS, 1,10-decanedioic acid, iodoethane. pH 7.0, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.30 Å R-free 0.260
1FZH METHANE MONOOXYGENASE HYDROXYLASE, FORM II PRESSURIZED WITH XENON GAS Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 4 XE XENON × 11 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；PEG 8000, CaCl2, MOPS, pH 7.0, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 2.60 Å R-free 0.260
1FZI METHANE MONOOXYGENASE HYDROXYLASE, FORM I PRESSURIZED WITH XENON GAS Deposited 2000-10-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–170（170 aa）
Chain F 1–170（170 aa）
Not recorded FE FE (III) ION × 4 XE XENON × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；PEG 4000, ammonium acetate, Li2SO4, MOPS, pH 7.0, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 3.30 Å R-free 0.253
1MMO CRYSTAL STRUCTURE OF A BACTERIAL NON-HAEM IRON HYDROXYLASE THAT CATALYSES THE BIOLOGICAL OXIDATION OF METHANE Deposited 1994-02-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain G 3–164（162 aa）
Chain H 3–164（162 aa）
Not recorded FE FE (III) ION × 4 ACY ACETIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å
1MTY METHANE MONOOXYGENASE HYDROXYLASE FROM METHYLOCOCCUS CAPSULATUS (BATH) Deposited 1996-07-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain G 3–164（162 aa）
Chain H 3–164（162 aa）
Not recorded FE FE (III) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；25 MM LI2SO4, 50 MM NH4OAC, 5% PEG 4000, IN 25 MM MOPS PH 7.0 WITH A RESERVOIR OF 20% PEG 4000
Resolution 1.70 Å
1XMF Structure of Mn(II)-Soaked Apo Methane Monooxygenase Hydroxylase Crystals from M. capsulatus (Bath) Deposited 2004-10-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–169（169 aa） Fragment：gamma subunit
Chain F 1–169（169 aa） Fragment：gamma subunit
Not recorded MN MANGANESE (II) ION × 4 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, CaCl2, PEG8000, glycerol, azide, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.32 Å R-free 0.263
1XMG Crystal structure of apo methane monooxygenase hydroxylase from M. capsulatus (Bath) Deposited 2004-10-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–169（169 aa） Fragment：gamma subunit
Chain F 1–169（169 aa） Fragment：gamma subunit
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；MOPS, PEG 8000, calcium chloride, glycerol, azide, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.10 Å R-free 0.261
1XMH Structure of Co(II) reconstituted methane monooxygenase hydroxylase from M. capsulatus (Bath) Deposited 2004-10-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–169（169 aa） Fragment：gamma subunit
Chain F 1–169（169 aa） Fragment：gamma subunit
Not recorded CO COBALT (II) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；MOPS, PEG 8000, calcium chloride, sodium azide, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.32 Å R-free 0.225
1XU3 Soluble methane monooxygenase hydroxylase-soaked with bromophenol Deposited 2004-10-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 BML 4-BROMOPHENOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；273 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 273K, pH 7.00
Resolution 2.30 Å R-free 0.245
1XU5 Soluble methane monooxygenase hydroxylase-phenol soaked Deposited 2004-10-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 OH HYDROXIDE ION × 2 IPH PHENOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；273 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 1.96 Å R-free 0.228
1XVB soluble methane monooxygenase hydroxylase: 6-bromohexanol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa）
Chain F 0–169（170 aa）
Not recorded FE FE (III) ION × 4 BHL 6-BROMOHEXAN-1-OL × 10 BBU 1-BROMOBUTANE × 1 BBX 1-BROMOETHANE × 1 CA CALCIUM ION × 1 3BR 1-BROMOPROPANE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.80 Å R-free 0.251
1XVC soluble methane monooxygenase hydroxylase: 8-bromooctanol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 BR BROMIDE ION × 2 5BR 1-BROMOPENTANE × 1 BMM BROMOMETHANE × 1 FMT FORMIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.234
1XVD Soluble methane monooxygenase hydroxylase: 4-fluorophenol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 FPN 4-FLUOROPHENOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；273 K；MOPS, PEG 8000, CaCl2, NaN3, glyerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 2.30 Å R-free 0.229
1XVE soluble methane monooxygenase hydroxylase: 3-bromo-3-butenol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 2 3BB 3-BROMOBUT-3-EN-1-OL × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.40 Å R-free 0.260
1XVF soluble methane monooxygenase hydroxylase: chloropropanol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 3CL 3-CHLOROPROPANOL × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, PEG 8000, NaN3, CaCl2, glycerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.230
1XVG soluble methane monooxygenase hydroxylase: bromoethanol soaked structure Deposited 2004-10-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 0–169（170 aa） Fragment：gamma subunit
Chain F 0–169（170 aa） Fragment：gamma subunit
Not recorded FE FE (III) ION × 4 CA CALCIUM ION × 4 BRJ 2-BROMOETHANOL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；MOPS, PEG 8000, CaCl2, NaN3, glyerol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.96 Å R-free 0.230
4GAM Complex structure of Methane monooxygenase hydroxylase and regulatory subunit Deposited 2012-07-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain C 1–170（170 aa）
Chain H 1–170（170 aa）
Not recorded FE FE (III) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES and 15% PEG 20,000 (w/v) ure 298K, pH 6.5, VAPOR DIFFUSION, SITTING DROP
Resolution 2.90 Å R-free 0.258
4GAM Complex structure of Methane monooxygenase hydroxylase and regulatory subunit Deposited 2012-07-25 Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain M 1–170（170 aa）
Chain R 1–170（170 aa）
Not recorded FE FE (III) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES and 15% PEG 20,000 (w/v) ure 298K, pH 6.5, VAPOR DIFFUSION, SITTING DROP
Resolution 2.90 Å R-free 0.258
7TC7 Cryo-EM structure of methane monooxygenase hydroxylase (by quantifoil) Deposited 2021-12-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain G 1–170（170 aa）
Chain H 1–170（170 aa）
Not recorded FE FE (III) ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；30 mM HEPES, pH 7, 150 mM NaCl, 1 mM TCEP
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7TC8 Cryo-EM structure of methane monooxygenase hydroxylase (by graphene) Deposited 2021-12-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain G 1–170（170 aa）
Chain H 1–170（170 aa）
Not recorded FE FE (III) ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；30 mM HEPES, pH 7, 150 mM NaCl, 1 mM TCEP
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.40 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.