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1fzi

METHANE MONOOXYGENASE HYDROXYLASE, FORM I PRESSURIZED WITH XENON GAS

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

METHANE MONOOXYGENASE COMPONENT A, ALPHA CHAIN

OrganismNot specified

UniProt P22869

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 METHANE MONOOXYGENASE COMPONENT A, BETA CHAIN × 2 （P18798） METHANE MONOOXYGENASE COMPONENT A, GAMMA CHAIN × 2 （P11987） FE (III) ION × 4 XENON × 6 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1fyz 1fz0 1fz1 1fz2 1fz3 1fz4 1fz5 1fz6 1fz7 1fz8 1fz9 1fzh

48 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MEMA_METCA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–527； UniProt 1–527 Author chain B； PDBConstruct 1–527； UniProt 1–527

METHANE MONOOXYGENASE COMPONENT A, BETA CHAIN

OrganismNot specified

UniProt P18798

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 METHANE MONOOXYGENASE COMPONENT A, ALPHA CHAIN × 2 （P22869） METHANE MONOOXYGENASE COMPONENT A, GAMMA CHAIN × 2 （P11987） FE (III) ION × 4 XENON × 6 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1fyz 1fz0 1fz1 1fz2 1fz3 1fz4 1fz5 1fz6 1fz7 1fz8 1fz9 1fzh

29 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MEMB_METCA
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C； PDBConstruct 1–389； UniProt 1–389 Author chain D； PDBConstruct 1–389； UniProt 1–389

METHANE MONOOXYGENASE COMPONENT A, GAMMA CHAIN

OrganismNot specified

UniProt P11987

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 METHANE MONOOXYGENASE COMPONENT A, ALPHA CHAIN × 2 （P22869） METHANE MONOOXYGENASE COMPONENT A, BETA CHAIN × 2 （P18798） FE (III) ION × 4 XENON × 6 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1fyz 1fz0 1fz1 1fz2 1fz3 1fz4 1fz5 1fz6 1fz7 1fz8 1fz9 1fzh

30 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MEMG_METCA
Isoform —
PDB entities 3
Chains and sequence ranges Author chain E； PDBConstruct 1–170； UniProt 1–170 Author chain F； PDBConstruct 1–170； UniProt 1–170

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_id1fzi
Deposition date deposition_date2000-10-03
Structure title titleMETHANE MONOOXYGENASE HYDROXYLASE, FORM I PRESSURIZED WITH XENON GAS
Keywords keywordsdinuclear iron center, monooxygenase, oxidoreductase; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION
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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.

1fzi__assembly_1__model_1

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

Download this curve (.dat)

1fzi__assembly_1__model_1 | I(q)

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

1fzi__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）41.21 Å
Rg (electron density)40.87 Å
Total Rg41.22 Å
Atom count17388
Residues2116
Excluded volume307100 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1fzi__assembly_1__model_1 hexameric （6） 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 (5)

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6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd1fzia_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like
Domain ID domain_idd1fzib_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like
Domain ID domain_idd1fzic_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like
Domain ID domain_idd1fzid_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like
Domain ID domain_idd1fzie_
Class classa — All alpha proteins
Fold Fold folda.23 — Open three-helical up-and-down bundle
Superfamily Superfamily superfamilya.23.3 — Methane monooxygenase hydrolase, gamma subunit
Family Family familya.23.3.1 — Methane monooxygenase hydrolase, gamma subunit
Domain ID domain_idd1fzif_
Class classa — All alpha proteins
Fold Fold folda.23 — Open three-helical up-and-down bundle
Superfamily Superfamily superfamilya.23.3 — Methane monooxygenase hydrolase, gamma subunit
Family Family familya.23.3.1 — Methane monooxygenase hydrolase, gamma subunit

CATH v4.4 (8 domains)

Domain ID domain_id1fziA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id1fziB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id1fziC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id1fziD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id1fziE01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1280 — Monooxygenase
Homologous superfamily homologous superfamily10 — Methane monooxygenase, gamma chain, domain 1
Domain ID domain_id1fziE02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1280 — Monooxygenase
Homologous superfamily homologous superfamily30 — Methane monooxygenase, gamma chain, domain 2
Domain ID domain_id1fziF01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1280 — Monooxygenase
Homologous superfamily homologous superfamily10 — Methane monooxygenase, gamma chain, domain 1
Domain ID domain_id1fziF02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1280 — Monooxygenase
Homologous superfamily homologous superfamily30 — Methane monooxygenase, gamma chain, domain 2
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7. Citations (1)