1scu

THE CRYSTAL STRUCTURE OF SUCCINYL-COA SYNTHETASE FROM ESCHERICHIA COLI AT 2.5 ANGSTROMS RESOLUTION

Method: X-RAY DIFFRACTION D_max: 117.7 Å Quality: GOOD

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

SUCCINYL-COA SYNTHETASE, ALPHA SUBUNIT

Escherichia coli

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain A； UniProt 1–288 Chain D； UniProt 1–288	Non-standard monomer：Yes (specific site not provided by mmCIF)	SUCCINYL-COA SYNTHETASE, BETA SUBUNIT × 2 （P0A836） COA COENZYME A × 2	X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions	Resolution 2.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 1SCU	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1CQI Crystal Structure of the Complex of ADP and MG2+ with Dephosphorylated E. Coli Succinyl-CoA Synthetase Deposited 1999-08-06	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 2–287（286 aa） Fragment：ALPHA SUBUNIT Chain D 2–287（286 aa） Fragment：ALPHA SUBUNIT	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 2 MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.3；AMMONIUM SULFATE, POTASSIUM PHOSPHATE, COENZYME A, pH 7.30, VAPOR DIFFUSION, HANGING DROP	Resolution 3.30 Å R-free 0.247
1CQJ CRYSTAL STRUCTURE OF DEPHOSPHORYLATED E. COLI SUCCINYL-COA SYNTHETASE Deposited 1999-08-06	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 2–287（286 aa） Fragment：ALPHA SUBUNIT Chain D 2–287（286 aa） Fragment：ALPHA SUBUNIT	Not recorded	PO4 PHOSPHATE ION × 4 COA COENZYME A × 3	X-RAY DIFFRACTION X-ray crystallization conditions MICRODIALYSIS；pH 7.3；294 K；ammonium sulfate, potassium phosphate, coenzyme A, pH 7.3, MICRODIALYSIS, temperature 294K	Resolution 2.90 Å R-free 0.228
1JKJ E. coli SCS Deposited 2001-07-12	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–288（288 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 GOL GLYCEROL × 2 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions MICRODIALYSIS；pH 7.4；294 K；potassium phosphate, ammonium sulfate, pH 7.4, MICRODIALYSIS, temperature 294K	Resolution 2.35 Å R-free 0.238
1JKJ E. coli SCS Deposited 2001-07-12	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 1–288（288 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions MICRODIALYSIS；pH 7.4；294 K；potassium phosphate, ammonium sulfate, pH 7.4, MICRODIALYSIS, temperature 294K	Resolution 2.35 Å R-free 0.238
1JLL Crystal Structure Analysis of the E197betaA Mutant of E. coli SCS Deposited 2001-07-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–288（288 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；Bicine, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.69 Å R-free 0.259
1JLL Crystal Structure Analysis of the E197betaA Mutant of E. coli SCS Deposited 2001-07-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 1–288（288 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；Bicine, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.69 Å R-free 0.259
2SCU A detailed description of the structure of Succinyl-COA synthetase from Escherichia coli Deposited 1998-09-24	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 2–289（288 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	COA COENZYME A × 2 SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 7.2；pH 7.2	Resolution 2.30 Å
2SCU A detailed description of the structure of Succinyl-COA synthetase from Escherichia coli Deposited 1998-09-24	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 2–289（288 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	COA COENZYME A × 2 SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 7.2；pH 7.2	Resolution 2.30 Å

5 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SUCD_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–288； UniProt 1–288 Author chain D； PDBConstruct 1–288； UniProt 1–288

SUCCINYL-COA SYNTHETASE, BETA SUBUNIT

Escherichia coli

UniProt P0A836

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain B； UniProt 1–388 Chain E； UniProt 1–388	Not recorded	SUCCINYL-COA SYNTHETASE, ALPHA SUBUNIT × 2 （P07459） COA COENZYME A × 2	X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions	Resolution 2.50 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 1SCU	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1JKJ E. coli SCS Deposited 2001-07-12	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 GOL GLYCEROL × 2 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions MICRODIALYSIS；pH 7.4；294 K；potassium phosphate, ammonium sulfate, pH 7.4, MICRODIALYSIS, temperature 294K	Resolution 2.35 Å R-free 0.238
1JKJ E. coli SCS Deposited 2001-07-12	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions MICRODIALYSIS；pH 7.4；294 K；potassium phosphate, ammonium sulfate, pH 7.4, MICRODIALYSIS, temperature 294K	Resolution 2.35 Å R-free 0.238
1JLL Crystal Structure Analysis of the E197betaA Mutant of E. coli SCS Deposited 2001-07-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Mutation：E197A	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；Bicine, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.69 Å R-free 0.259
1JLL Crystal Structure Analysis of the E197betaA Mutant of E. coli SCS Deposited 2001-07-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Mutation：E197A	PO4 PHOSPHATE ION × 2 COA COENZYME A × 4 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；Bicine, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.69 Å R-free 0.259
2NU6 C123aA Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Not recorded	SO4 SULFATE ION × 4 COA COENZYME A × 6	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；BICINE, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.55 Å R-free 0.247
2NU6 C123aA Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Not recorded	SO4 SULFATE ION × 4 COA COENZYME A × 6	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；BICINE, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.55 Å R-free 0.247
2NU7 C123aS Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 6 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；BICINE, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.20 Å R-free 0.244
2NU7 C123aS Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 COA COENZYME A × 6 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；294 K；BICINE, ammonium sulfate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.20 Å R-free 0.244
2NU8 C123aT Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 SO4 SULFATE ION × 4 COA COENZYME A × 4 GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；294 K；BICINE, Ammonium sulfate, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.15 Å R-free 0.255
2NU8 C123aT Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 SO4 SULFATE ION × 4 COA COENZYME A × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；294 K；BICINE, Ammonium sulfate, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.15 Å R-free 0.255
2NU9 C123aT Mutant of E. coli Succinyl-CoA Synthetase Orthorhombic Crystal Form Deposited 2006-11-08	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa） Chain G 1–388（388 aa）	Not recorded	COA COENZYME A × 2 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；294 K；BICINE, ammonium sulfate, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.90 Å R-free 0.251
2NU9 C123aT Mutant of E. coli Succinyl-CoA Synthetase Orthorhombic Crystal Form Deposited 2006-11-08	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa） Chain I 1–388（388 aa）	Not recorded	COA COENZYME A × 2 SO4 SULFATE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；294 K；BICINE, ammonium sulfate, pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.90 Å R-free 0.251
2NUA C123aV Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 SO4 SULFATE ION × 6 COA COENZYME A × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.1；294 K；Tris-HCl, ammonium sulfate, pH 7.1, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.95 Å R-free 0.264
2NUA C123aV Mutant of E. coli Succinyl-CoA Synthetase Deposited 2006-11-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain E 1–388（388 aa）	Not recorded	PO4 PHOSPHATE ION × 2 SO4 SULFATE ION × 4 COA COENZYME A × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.1；294 K；Tris-HCl, ammonium sulfate, pH 7.1, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.95 Å R-free 0.264

7 other PDB entries and 14 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	SUCC_ECOLI
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–388； UniProt 1–388 Author chain E； PDBConstruct 1–388； UniProt 1–388

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.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1scu
Deposition date deposition_date	1993-11-18
Structure title title	THE CRYSTAL STRUCTURE OF SUCCINYL-COA SYNTHETASE FROM ESCHERICHIA COLI AT 2.5 ANGSTROMS RESOLUTION
Keywords keywords	LIGASE (ATP-BINDING); LIGASE (ATP-BINDING)
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	35.96 Å
Radius of gyration Rg (electron density) rg_electron	35.79 Å
Forward intensity I(0) i0	311286000.00
Molecular weight molecular_weight	143760.0 kDa
Excluded volume excluded_volume	180600 Å³
Envelope volume envelope_volume	221250 Å³
Hydration-shell volume shell_volume	51589 Å³
Envelope diameter envelope_diameter	124.1 Å
Shell Rg shell_rg	42.26 Å
Envelope Rg envelope_rg	35.10 Å
Shape Rg shape_rg	35.79 Å
Total Rg total_rg	36.22 Å
Total atoms total_atoms	10078
Residues n_residues	1350
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	117.7 Å
Rg (real space) rg_real	35.96 Å
Rg uncertainty (real space) rg_real_error	0.93 Å
I(0) (real space) i0_real	3.1130e+08
I(0) uncertainty (real space) i0_real_error	5.0980e+06
Rg (reciprocal space) rg_reciprocal	35.96 Å
I(0) (reciprocal space) i0_reciprocal	311300000.0000
Solution quality estimate total_estimate	0.8864
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	40.1 Å
Skewness Skewness skewness	0.352
Kurtosis Kurtosis kurtosis	-0.406
Angular range angular_range	— – 0.2200 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	71540000.0000
Real-space data points n_real_points	45
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.888; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.861

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	SUCCINYL-COA SYNTHETASE, ALPHA SUBUNIT
Molecular weight formula_weight	29758.2 kDa
EC 编号 ec_number	6.2.1.5
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D
Atom count atom_count	10188

SILIDKNTKVICQGFTGSQGTFHSEQAIAYGTKMVGGVTPGKGGTTHLGLPVFNTVREAVAATGATASVIYVPAPFCKDSILEAIDAGIKLIITITEGIPTLDMLTVKVKLDEAGVRMIGPNCPGVITPGECKIGIQPGHIHKPGKVGIVSRSGTLTYEAVKQTTDYGFGQSTCVGIGGDPIPGSNFIDILEMFEKDPQTEAIVMIGEIGGSAEEEAAAYIKEHVTKPVVGYIAGVTAPKGKRMGHAGAIIAGGKGTADEKFAALEAAGVKTVRSLADIGEALKTVLK

来源 Source

来源生物 organism	Escherichia coli
NCBI Class编号 ncbi_taxonomy_id	562

Entity 2 Entity 2 polymer

Description description	SUCCINYL-COA SYNTHETASE, BETA SUBUNIT
Molecular weight formula_weight	41438.5 kDa
EC 编号 ec_number	6.2.1.5
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,E

MNLHEYQAKQLFARYGLPAPVGYACTTPREAEEAASKIGAGPWVVKCQVHAGGRGKAGGVKVVNSKEDIRAFAENWLGKRLVTYQTDANGQPVNQILVEAATDIAKELYLGAVVDRSSRRVVFMASTEGGVEIEKVAEETPHLIHKVALDPLTGPMPYQGRELAFKLGLEGKLVQQFTKIFMGLATIFLERDLALIEINPLVITKQGDLICLDGKLGADGNALFRQPDLREMRDQSQEDPREAQAAQWELNYVALDGNIGCMVNGAGLAMGTMDIVKLHGGEPANFLDVGGGATKERVTEAFKIILSDDKVKAVLVNIFGGIVRCDLIADGIIGAVAEVGVNVPVVVRLEGNNAELGAKKLADSGLNIIAAKGLTDAAQQVVAAVEGK

来源 Source

来源生物 organism	Escherichia coli
NCBI Class编号 ncbi_taxonomy_id	562

Entity 3 Entity 3 non-polymer

Description description	COENZYME A
Molecular weight formula_weight	767.5 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	110

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7. Fold Classification (SCOP + CATH) 18 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d1scua1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.8 — CoA-binding domain

Domain ID domain_id	d1scua2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.4 — Succinyl-CoA synthetase domains
Family Family family	c.23.4.1 — Succinyl-CoA synthetase domains

Domain ID domain_id	d1scub1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.4 — Succinyl-CoA synthetase domains
Family Family family	c.23.4.1 — Succinyl-CoA synthetase domains

Domain ID domain_id	d1scub2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.142 — ATP-grasp
Superfamily Superfamily superfamily	d.142.1 — Glutathione synthetase ATP-binding domain-like
Family Family family	d.142.1.4 — Succinyl-CoA synthetase, beta-chain, N-terminal domain

Domain ID domain_id	d1scud1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.8 — CoA-binding domain

Domain ID domain_id	d1scud2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.4 — Succinyl-CoA synthetase domains
Family Family family	c.23.4.1 — Succinyl-CoA synthetase domains

Domain ID domain_id	d1scue1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.4 — Succinyl-CoA synthetase domains
Family Family family	c.23.4.1 — Succinyl-CoA synthetase domains

Domain ID domain_id	d1scue2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.142 — ATP-grasp
Superfamily Superfamily superfamily	d.142.1 — Glutathione synthetase ATP-binding domain-like
Family Family family	d.142.1.4 — Succinyl-CoA synthetase, beta-chain, N-terminal domain

CATH v4.4 (10 domains)

Domain ID domain_id	1scuA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	1scuA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	261 — Succinyl-CoA synthetase domains

Domain ID domain_id	1scuB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, B domain

Domain ID domain_id	1scuB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, A domain

Domain ID domain_id	1scuB03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	261 — Succinyl-CoA synthetase domains

Domain ID domain_id	1scuD01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	1scuD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	261 — Succinyl-CoA synthetase domains

Domain ID domain_id	1scuE01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, B domain

Domain ID domain_id	1scuE02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, A domain

Domain ID domain_id	1scuE03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	261 — Succinyl-CoA synthetase domains

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8. Citations (2)

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Unit-cell length a length_a	98.470 Å
Unit-cell length b length_b	98.470 Å
Unit-cell length c length_c	400.600 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 2 2
Space-group number int_tables_number	95
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	100.000 Å
R factor r_factor	0.2160
R_work r_work	0.2160
R_free r_free	—

fit	/app/data/saxs_computation/sc/1scu/1scu.fit
pddf	/app/data/pr_computation/sc/1scu/1scu.pr.out
profile	/app/data/saxs_computation/sc/1scu/1scu.dat

THE CRYSTAL STRUCTURE OF SUCCINYL-COA SYNTHETASE FROM ESCHERICHIA COLI AT 2.5 ANGSTROMS RESOLUTION

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

SUCCINYL-COA SYNTHETASE, ALPHA SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

SUCCINYL-COA SYNTHETASE, BETA SUBUNIT

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Fold Classification (SCOP + CATH) 18 domains

SCOP 2.08 (8 domains)

CATH v4.4 (10 domains)

8. Citations (2)

9. Files and Curves (10)

Files (7)

Curves (3)