1bxr

STRUCTURE OF CARBAMOYL PHOSPHATE SYNTHETASE COMPLEXED WITH THE ATP ANALOG AMPPNP

Method: X-RAY DIFFRACTION

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

CARBAMOYL-PHOSPHATE SYNTHASE

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	CARBAMOYL-PHOSPHATE SYNTHASE × 4 （P0A6F1） MANGANESE (II) ION × 13 POTASSIUM ION × 19 CHLORIDE ION × 14 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 8 L-ornithine × 4 TETRAETHYLAMMONIUM ION × 4 water × 8	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P0A6F1） MANGANESE (II) ION × 3 POTASSIUM ION × 5 CHLORIDE ION × 2 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P0A6F1） MANGANESE (II) ION × 4 POTASSIUM ION × 5 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P0A6F1） MANGANESE (II) ION × 3 POTASSIUM ION × 4 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
5	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P0A6F1） MANGANESE (II) ION × 3 POTASSIUM ION × 5 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CARB_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–1073； UniProt 1–1072 Author chain C； PDBConstruct 2–1073； UniProt 1–1072 Author chain E； PDBConstruct 2–1073； UniProt 1–1072 Author chain G； PDBConstruct 2–1073； UniProt 1–1072

CARBAMOYL-PHOSPHATE SYNTHASE

Escherichia coli

UniProt P0A6F1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	CARBAMOYL-PHOSPHATE SYNTHASE × 4 （P00968） MANGANESE (II) ION × 13 POTASSIUM ION × 19 CHLORIDE ION × 14 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 8 L-ornithine × 4 TETRAETHYLAMMONIUM ION × 4 water × 8	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P00968） MANGANESE (II) ION × 3 POTASSIUM ION × 5 CHLORIDE ION × 2 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P00968） MANGANESE (II) ION × 4 POTASSIUM ION × 5 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P00968） MANGANESE (II) ION × 3 POTASSIUM ION × 4 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count
5	Protein heterocomplex	Heteromer	Protein 2	CARBAMOYL-PHOSPHATE SYNTHASE × 1 （P00968） MANGANESE (II) ION × 3 POTASSIUM ION × 5 CHLORIDE ION × 4 PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 L-ornithine × 1 TETRAETHYLAMMONIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CARA_ECOLI
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–382； UniProt 1–382 Author chain D； PDBConstruct 1–382； UniProt 1–382 Author chain F； PDBConstruct 1–382； UniProt 1–382 Author chain H； PDBConstruct 1–382； UniProt 1–382

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	1bxr
Deposition date deposition_date	1998-10-08
Structure title title	STRUCTURE OF CARBAMOYL PHOSPHATE SYNTHETASE COMPLEXED WITH THE ATP ANALOG AMPPNP
Keywords keywords	AMIDOTRANSFERASE, CARBAMOYL-PHOSPHATE SYNTHASE; AMIDOTRANSFERASE
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.

1bxr__assembly_1__model_1

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

Download this curve (.dat)

1bxr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1bxr__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	72.14 Å
Rg (electron density)	72.23 Å
Total Rg	72.17 Å
Atom count	45018
Residues	5808
Excluded volume	801430 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1bxr__assembly_1__model_1`	octameric （8）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1bxr__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1bxr__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1bxr__assembly_4__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1bxr__assembly_5__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 (9)

Entity 1 Entity 1 polymer

Description description	CARBAMOYL-PHOSPHATE SYNTHASE
Molecular weight formula_weight	117981.8 kDa
EC 编号 ec_number	6.3.5.5
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C,E,G
Atom count atom_count	48307

MPKRTDIKSILILGAGPIVIGQACEFDYSGAQACKALREEGYRVILVNSNPATIMTDPEMADATYIEPIHWEVVRKIIEKERPDAVLPTMGGQTALNCALELERQGVLEEFGVTMIGATADAIDKAEDRRRFDVAMKKIGLETARSGIAHTMEEALAVAADVGFPCIIRPSFTMGGSGGGIAYNREEFEEICARGLDLSPTKELLIDESLIGWKEYEMEVVRDKNDNCIIVCSIENFDAMGIHTGDSITVAPAQTLTDKEYQIMRNASMAVLREIGVETGGSNVQFAVNPKNGRLIVIEMNPRVSRSSALASKATGFPIAKVAAKLAVGYTLDELMNDITGGRTPASFEPSIDYVVTKIPRFNFEKFAGANDRLTTQMKSVGEVMAIGRTQQESLQKALRGLEVGATGFDPKVSLDDPEALTKIRRELKDAGADRIWYIADAFRAGLSVDGVFNLTNIDRWFLVQIEELVRLEEKVAEVGITGLNADFLRQLKRKGFADARLAKLAGVREAEIRKLRDQYDLHPVYKRVDTCAAEFATDTAYMYSTYEEECEANPSTDREKIMVLGGGPNRIGQGIEFDYCCVHASLALREDGYETIMVNCNPETVSTDYDTSDRLYFEPVTLEDVLEIVRIEKPKGVIVQYGGQTPLKLARALEAAGVPVIGTSPDAIDRAEDRERFQHAVERLKLKQPANATVTAIEMAVEKAKEIGYPLVVRPSYVLGGRAMEIVYDEADLRRYFQTAVSVSNDAPVLLDHFLDDAVEVDVDAICDGEMVLIGGIMEHIEQAGVHSGDSACSLPAYTLSQEIQDVMRQQVQKLAFELQVRGLMNVQFAVKNNEVYLIEVNPRAARTVPFVSKATGVPLAKVAARVMAGKSLAEQGVTKEVIPPYYSVKEVVLPFNKFPGVDPLLGPEMRSTGEVMGVGRTFAEAFAKAQLGSNSTMKKHGRALLSVREGDKERVVDLAAKLLKQGFELDATHGTAIVLGEAGINPRLVNKVHEGRPHIQDRIKNGEYTYIINTTSGRRAIEDSRVIRRSALQYKVHYDTTLNGGFATAMALNADATEKVISVQEMHAQIK

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	CARBAMOYL-PHOSPHATE SYNTHASE
Molecular weight formula_weight	41480.9 kDa
EC 编号 ec_number	6.3.5.5
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D,F,H

MIKSALLVLEDGTQFHGRAIGATGSAVGEVVFNTSMTGYQEILTDPSYSRQIVTLTYPHIGNVGTNDADEESSQVHAQGLVIRDLPLIASNFRNTEDLSSYLKRHNIVAIADIDTRKLTRLLREKGAQNGCIIAGDNPDAALALEKARAFPGLNGMDLAKEVTTAEAYSWTQGSWTLTGGLPQAKKEDELPFHVVAYDFGAKRNILRMLVDRGCRLTIVPAQTSAEDVLKMNPDGIFLSNGPGDPAPCDYAITAIQKFLETDIPVFGICLGHQLLALASGAKTVKMKFGHHGGNHPVKDVEKNVVMITAQNHGFAVDEATLPANLRVTHKSLFDGTLQGIHRTDKPAFSFQGHPEASPGPHDAAPLFDHFIELIEQYRKTAK

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	MANGANESE (II) ION
Molecular weight formula_weight	54.9 kDa
Source method src_method	syn
Copy count entity_count	13

Entity 4 Entity 4 non-polymer

Description description	POTASSIUM ION
Molecular weight formula_weight	39.1 kDa
Source method src_method	syn
Copy count entity_count	19

Entity 5 Entity 5 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	14

Entity 6 Entity 6 non-polymer

Description description	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
Molecular weight formula_weight	506.2 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 7 Entity 7 non-polymer

Description description	L-ornithine
Molecular weight formula_weight	132.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 8 Entity 8 non-polymer

Description description	TETRAETHYLAMMONIUM ION
Molecular weight formula_weight	130.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 9 Entity 9 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	3242

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6. Fold Classification (SCOP + CATH) 70 domains

SCOP 2.08 (32 domains)

Domain ID domain_id	d1bxra1
Class class	a — All alpha proteins
Fold Fold fold	a.92 — Carbamoyl phosphate synthetase, large subunit connection domain
Superfamily Superfamily superfamily	a.92.1 — Carbamoyl phosphate synthetase, large subunit connection domain
Family Family family	a.92.1.1 — Carbamoyl phosphate synthetase, large subunit connection domain

Domain ID domain_id	d1bxra2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.1 — Carbamoyl phosphate synthetase, large subunit allosteric, C-terminal domain

Domain ID domain_id	d1bxra3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxra4
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxra5
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxra6
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.8 — The 'swivelling' beta/beta/alpha domain
Superfamily Superfamily superfamily	c.8.3 — Carbamoyl phosphate synthetase, small subunit N-terminal domain
Family Family family	c.8.3.1 — Carbamoyl phosphate synthetase, small subunit N-terminal domain

Domain ID domain_id	d1bxrb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.16 — Class I glutamine amidotransferase-like
Family Family family	c.23.16.1 — Class I glutamine amidotransferases (GAT)

Domain ID domain_id	d1bxrc1
Class class	a — All alpha proteins
Fold Fold fold	a.92 — Carbamoyl phosphate synthetase, large subunit connection domain
Superfamily Superfamily superfamily	a.92.1 — Carbamoyl phosphate synthetase, large subunit connection domain
Family Family family	a.92.1.1 — Carbamoyl phosphate synthetase, large subunit connection domain

Domain ID domain_id	d1bxrc2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.1 — Carbamoyl phosphate synthetase, large subunit allosteric, C-terminal domain

Domain ID domain_id	d1bxrc3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxrc4
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxrc5
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrc6
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrd1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.8 — The 'swivelling' beta/beta/alpha domain
Superfamily Superfamily superfamily	c.8.3 — Carbamoyl phosphate synthetase, small subunit N-terminal domain
Family Family family	c.8.3.1 — Carbamoyl phosphate synthetase, small subunit N-terminal domain

Domain ID domain_id	d1bxrd2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.16 — Class I glutamine amidotransferase-like
Family Family family	c.23.16.1 — Class I glutamine amidotransferases (GAT)

Domain ID domain_id	d1bxre1
Class class	a — All alpha proteins
Fold Fold fold	a.92 — Carbamoyl phosphate synthetase, large subunit connection domain
Superfamily Superfamily superfamily	a.92.1 — Carbamoyl phosphate synthetase, large subunit connection domain
Family Family family	a.92.1.1 — Carbamoyl phosphate synthetase, large subunit connection domain

Domain ID domain_id	d1bxre2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.1 — Carbamoyl phosphate synthetase, large subunit allosteric, C-terminal domain

Domain ID domain_id	d1bxre3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxre4
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxre5
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxre6
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrf1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.8 — The 'swivelling' beta/beta/alpha domain
Superfamily Superfamily superfamily	c.8.3 — Carbamoyl phosphate synthetase, small subunit N-terminal domain
Family Family family	c.8.3.1 — Carbamoyl phosphate synthetase, small subunit N-terminal domain

Domain ID domain_id	d1bxrf2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.16 — Class I glutamine amidotransferase-like
Family Family family	c.23.16.1 — Class I glutamine amidotransferases (GAT)

Domain ID domain_id	d1bxrg1
Class class	a — All alpha proteins
Fold Fold fold	a.92 — Carbamoyl phosphate synthetase, large subunit connection domain
Superfamily Superfamily superfamily	a.92.1 — Carbamoyl phosphate synthetase, large subunit connection domain
Family Family family	a.92.1.1 — Carbamoyl phosphate synthetase, large subunit connection domain

Domain ID domain_id	d1bxrg2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.24 — Methylglyoxal synthase-like
Superfamily Superfamily superfamily	c.24.1 — Methylglyoxal synthase-like
Family Family family	c.24.1.1 — Carbamoyl phosphate synthetase, large subunit allosteric, C-terminal domain

Domain ID domain_id	d1bxrg3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxrg4
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.1 — BC N-terminal domain-like

Domain ID domain_id	d1bxrg5
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrg6
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.142.1.2 — BC ATP-binding domain-like

Domain ID domain_id	d1bxrh1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.8 — The 'swivelling' beta/beta/alpha domain
Superfamily Superfamily superfamily	c.8.3 — Carbamoyl phosphate synthetase, small subunit N-terminal domain
Family Family family	c.8.3.1 — Carbamoyl phosphate synthetase, small subunit N-terminal domain

Domain ID domain_id	d1bxrh2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.16 — Class I glutamine amidotransferase-like
Family Family family	c.23.16.1 — Class I glutamine amidotransferases (GAT)

CATH v4.4 (38 domains)

Domain ID domain_id	1bxrA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrA02
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	1bxrA03
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	1bxrA04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1030 — Carbamoyl Phosphate Synthetase; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — Carbamoyl-phosphate synthetase, large subunit oligomerisation domain

Domain ID domain_id	1bxrA05
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrA06
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	1bxrA07
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	1bxrA08
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1bxrB01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	20 — Carbamoyl-phosphate synthase small subunit, N-terminal domain

Domain ID domain_id	1bxrB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	880 — Class I glutamine amidotransferase (GATase) domain

Domain ID domain_id	1bxrC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrC02
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	1bxrC03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1030 — Carbamoyl Phosphate Synthetase; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — Carbamoyl-phosphate synthetase, large subunit oligomerisation domain

Domain ID domain_id	1bxrC04
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrC05
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	1bxrC06
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1bxrD01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	20 — Carbamoyl-phosphate synthase small subunit, N-terminal domain

Domain ID domain_id	1bxrD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	880 — Class I glutamine amidotransferase (GATase) domain

Domain ID domain_id	1bxrE01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrE02
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	1bxrE03
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	1bxrE04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1030 — Carbamoyl Phosphate Synthetase; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — Carbamoyl-phosphate synthetase, large subunit oligomerisation domain

Domain ID domain_id	1bxrE05
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrE06
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	1bxrE07
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	1bxrE08
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1bxrF01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	20 — Carbamoyl-phosphate synthase small subunit, N-terminal domain

Domain ID domain_id	1bxrF02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	880 — Class I glutamine amidotransferase (GATase) domain

Domain ID domain_id	1bxrG01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrG02
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	1bxrG03
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	1bxrG04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1030 — Carbamoyl Phosphate Synthetase; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — Carbamoyl-phosphate synthetase, large subunit oligomerisation domain

Domain ID domain_id	1bxrG05
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1bxrG06
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	1bxrG07
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	1bxrG08
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1380 — Methylglyoxal synthase-like domain

Domain ID domain_id	1bxrH01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	20 — Carbamoyl-phosphate synthase small subunit, N-terminal domain

Domain ID domain_id	1bxrH02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	880 — Class I glutamine amidotransferase (GATase) domain

▶

Unit-cell length a length_a	151.900 Å
Unit-cell length b length_b	164.500 Å
Unit-cell length c length_c	332.600 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 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	—
R_work r_work	0.1950
R_free r_free	—

STRUCTURE OF CARBAMOYL PHOSPHATE SYNTHETASE COMPLEXED WITH THE ATP ANALOG AMPPNP

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

CARBAMOYL-PHOSPHATE SYNTHASE

State in the Current Structure

Other States of the Same Protein in the Database

CARBAMOYL-PHOSPHATE SYNTHASE

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

1bxr__assembly_1__model_1

1bxr__assembly_1__model_1 | I(q)

1bxr__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 (9)

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 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

6. Fold Classification (SCOP + CATH) 70 domains

SCOP 2.08 (32 domains)

CATH v4.4 (38 domains)

7. Citations (1)

STRUCTURE OF CARBAMOYL PHOSPHATE SYNTHETASE COMPLEXED WITH THE ATP ANALOG AMPPNP

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

CARBAMOYL-PHOSPHATE SYNTHASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

CARBAMOYL-PHOSPHATE SYNTHASE

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

1bxr__assembly_1__model_1

1bxr__assembly_1__model_1 | I(q)

1bxr__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 (9)

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 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

6. Fold Classification (SCOP + CATH) 70 domains

SCOP 2.08 (32 domains)

CATH v4.4 (38 domains)

7. Citations (1)