SAXSdb — 1o97

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1. Protein Identity and Related Structures Protein Identity & Related Structures

ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT

METHYLOPHILUS METHYLOTROPHUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT × 1 （P53571） ADENOSINE MONOPHOSPHATE × 1 FLAVIN-ADENINE DINUCLEOTIDE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ETFB_METME
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain C； PDBConstruct 1–264； UniProt 1–264

ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT

METHYLOPHILUS METHYLOTROPHUS

UniProt P53571

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT × 1 （P53570） ADENOSINE MONOPHOSPHATE × 1 FLAVIN-ADENINE DINUCLEOTIDE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ETFA_METME
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain D； PDBConstruct 1–320； UniProt 1–320

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_id	1o97
Deposition date deposition_date	2002-12-11
Structure title title	Structure of electron transferring flavoprotein from Methylophilus methylotrophus, recognition loop removed by limited proteolysis
Keywords keywords	ELECTRON TRANSFER, FLAVOPROTEIN, FAD BINDING; ELECTRON TRANSFER
Experimental Method method	X-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.

1o97__assembly_1__model_1

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

Download this curve (.dat)

1o97__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1o97__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	24.70 Å
Rg (electron density)	23.61 Å
Total Rg	24.43 Å
Atom count	4240
Residues	566
Excluded volume	75100 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1o97__assembly_1__model_1`	dimeric （2）	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)

Entity 1 Entity 1 polymer

Description description	ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT
Molecular weight formula_weight	28929.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C
Atom count atom_count	4920

MKILVAVKQTAALEEDFEIREDGMDVDEDFMMYDLNEWDDFSLEEAMKIKESSDTDVEVVVVSVGPDRVDESLRKCLAKGADRAVRVWDDAAEGSDAIVVGRILTEVIKKEAPDMVFAGVQSSDQAYASTGISVASYLNWPHAAVVADLQYKPGDNKAVIRRELEGGMLQEVEINCPAVLTIQLGINKPRYASLRGIKQAATKPIEEVSLADIGLSANDVGAAQSMSRVRRMYIPEKGRATMIEGTISEQAAKIIQIINEFKGA

Source Source

Source organism organism	METHYLOPHILUS METHYLOTROPHUS
NCBI taxonomy ID ncbi_taxonomy_id	17
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT
Molecular weight formula_weight	33622.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

SKILVIAEHRRNDLRPVSLELIGAANGLKKSGEDKVVVAVIGSQADAFVPALSVNGVDELVVVKGSSIDFDPDVFEASVSALIAAHNPSVVLLPHSVDSLGYASSLASKTGYGFATDVYIVEYQGDELVATRGGYNQKVNVEVDFPGKSTVVLTIRPSVFKPLEGAGSPVVSNVDAPSVQSRSQNKDYVEVGGGNDIDITTVDFIMSIGRGIGEETNVEQFRELADEAGATLCCSRPIADAGWLPKSRQVGQSGKVVGSCKLYVAMGISGSIQHMAGMKHVPTIIAVNTDPGASIFTIAKYGIVADIFDIEEELKAQLAA

Source Source

Source organism organism	METHYLOPHILUS METHYLOTROPHUS
NCBI taxonomy ID ncbi_taxonomy_id	17
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 non-polymer

Description description	ADENOSINE MONOPHOSPHATE
Molecular weight formula_weight	347.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	FLAVIN-ADENINE DINUCLEOTIDE
Molecular weight formula_weight	785.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	656

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1o97c_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
Superfamily Superfamily superfamily	c.26.2 — Adenine nucleotide alpha hydrolases-like
Family Family family	c.26.2.3 — ETFP subunits

Domain ID domain_id	d1o97d1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
Superfamily Superfamily superfamily	c.26.2 — Adenine nucleotide alpha hydrolases-like
Family Family family	c.26.2.3 — ETFP subunits

Domain ID domain_id	d1o97d2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamily	c.31.1 — DHS-like NAD/FAD-binding domain
Family Family family	c.31.1.2 — C-terminal domain of the electron transfer flavoprotein alpha subunit

CATH v4.4 (3 domains)

Domain ID domain_id	1o97C00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	620 — HUPs

Domain ID domain_id	1o97D01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	620 — HUPs

Domain ID domain_id	1o97D02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1220 — TPP-binding domain

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Unit-cell length a length_a	118.248 Å
Unit-cell length b length_b	118.248 Å
Unit-cell length c length_c	85.216 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 61
Space-group number int_tables_number	169
Crystal system crystal_system	—

Resolution resolution	1.600 Å
Low-resolution limit resolution_low	19.920 Å
R factor r_factor	0.2030
R_work r_work	0.2010
R_free r_free	0.2290

Structure of electron transferring flavoprotein from Methylophilus methylotrophus, recognition loop removed by limited proteolysis

1. Protein Identity and Related Structures Protein Identity & Related Structures

ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1o97__assembly_1__model_1

1o97__assembly_1__model_1 | I(q)

1o97__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)

Structure of electron transferring flavoprotein from Methylophilus methylotrophus, recognition loop removed by limited proteolysis

1. Protein Identity and Related Structures Protein Identity & Related Structures

ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1o97__assembly_1__model_1

1o97__assembly_1__model_1 | I(q)

1o97__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)