SAXSdb — 1cm5

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

PROTEIN (PYRUVATE FORMATE-LYASE)

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	CARBONATE ION × 2 SODIUM ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PFLB_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–759； UniProt 1–759 Author chain B； PDBConstruct 1–759； UniProt 1–759

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	1cm5
Deposition date deposition_date	1999-05-14
Structure title title	CRYSTAL STRUCTURE OF C418A,C419A MUTANT OF PFL FROM E.COLI
Keywords keywords	GLYCYL RADICAL ENZYME, TRANSFERASE, GLUCOSE METABOLISM; TRANSFERASE
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.

1cm5__assembly_1__model_1

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

Download this curve (.dat)

1cm5__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1cm5__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	38.01 Å
Rg (electron density)	37.63 Å
Total Rg	38.01 Å
Atom count	11982
Residues	1518
Excluded volume	213020 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1cm5__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 (4)

Entity 1 Entity 1 polymer

Description description	PROTEIN (PYRUVATE FORMATE-LYASE)
Molecular weight formula_weight	85263.8 kDa
EC 编号 ec_number	2.3.1.54
Mutation mutation	C418A,C419A
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	12751

SELNEKLATAWEGFTKGDWQNEVNVRDFIQKNYTPYEGDESFLAGATEATTTLWDKVMEGVKLENRTHAPVDFDTAVASTITSHDAGYINKQLEKIVGLQTEAPLKRALIPFGGIKMIEGSCKAYNRELDPMIKKIFTEYRKTHNQGVFDVYTPDILRCRKSGVLTGLPDAYGRGRIIGDYRRVALYGIDYLMKDKLAQFTSLQADLENGVNLEQTIRLREEIAEQHRALGQMKEMAAKYGYDISGPATNAQEAIQWTYFGYLAAVKSQNGAAMSFGRTSTFLDVYIERDLKAGKITEQEAQEMVDHLVMKLRMVRFLRTPEYDELFSGDPIWATESIGGMGLDGRTLVTKNSFRFLNTLYTMGPSPEPNMTILWSEKLPLNFKKFAAKVSIDTSSLQYENDDLMRPDFNNDDYAIAAAVSPMIVGKQMQFFGARANLAKTMLYAINGGVDEKLKMQVGPKSEPIKGDVLNYDEVMERMDHFMDWLAKQYITALNIIHYMHDKYSYEASLMALHDRDVIRTMACGIAGLSVAADSLSAIKYAKVKPIRDEDGLAIDFEIEGEYPQFGNNDPRVDDLAVDLVERFMKKIQKLHTYRDAIPTQSVLTITSNVVYGKKTGNTPDGRRAGAPFGPGANPMHGRDQKGAVASLTSVAKLPFAYAKDGISYTFSIVPNALGKDDEVRKTNLAGLMDGYFHHEASIEGGQHLNVNVMNREMLLDAMENPEKYPQLTIRVSGYAVRFNSLTKEQQQDVITRTFTQSM

Entity 2 Entity 2 non-polymer

Description description	CARBONATE ION
Molecular weight formula_weight	60.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	740

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1cm5a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.7 — PFL-like glycyl radical enzymes
Superfamily Superfamily superfamily	c.7.1 — PFL-like glycyl radical enzymes
Family Family family	c.7.1.1 — PFL-like

Domain ID domain_id	d1cm5b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.7 — PFL-like glycyl radical enzymes
Superfamily Superfamily superfamily	c.7.1 — PFL-like glycyl radical enzymes
Family Family family	c.7.1.1 — PFL-like

CATH v4.4 (2 domains)

Domain ID domain_id	1cm5A00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1cm5B00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	159.059 Å
Unit-cell length b length_b	159.059 Å
Unit-cell length c length_c	159.784 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	P 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.2160
R_work r_work	0.2160
R_free r_free	0.2510

CRYSTAL STRUCTURE OF C418A,C419A MUTANT OF PFL FROM E.COLI

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

PROTEIN (PYRUVATE FORMATE-LYASE)

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

1cm5__assembly_1__model_1

1cm5__assembly_1__model_1 | I(q)

1cm5__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF C418A,C419A MUTANT OF PFL FROM E.COLI

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

PROTEIN (PYRUVATE FORMATE-LYASE)

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

1cm5__assembly_1__model_1

1cm5__assembly_1__model_1 | I(q)

1cm5__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)