SAXSdb — 4k9w

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

Cytochrome P450 3A4

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	PROTOPORPHYRIN IX CONTAINING FE × 1 ;N~2~-(methyl{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}carbamoyl)-N-[(2R,5S)-1-phenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}octan-2-yl]-L-valinamide ; × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	PROTOPORPHYRIN IX CONTAINING FE × 1 ;N~2~-(methyl{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}carbamoyl)-N-[(2R,5S)-1-phenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}octan-2-yl]-L-valinamide ; × 1 water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	PROTOPORPHYRIN IX CONTAINING FE × 1 ;N~2~-(methyl{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}carbamoyl)-N-[(2R,5S)-1-phenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}octan-2-yl]-L-valinamide ; × 1 water × 1	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	PROTOPORPHYRIN IX CONTAINING FE × 1 ;N~2~-(methyl{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}carbamoyl)-N-[(2R,5S)-1-phenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}octan-2-yl]-L-valinamide ; × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CP3A4_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–483； UniProt 1–503 Author chain B； PDBConstruct 1–483； UniProt 1–503 Author chain C； PDBConstruct 1–483； UniProt 1–503 Author chain D； PDBConstruct 1–483； UniProt 1–503

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	4k9w
Deposition date deposition_date	2013-04-21
Structure title title	Complex of human CYP3A4 with a desoxyritonavir analog
Keywords keywords	;cytochrome P450 3A4, alpha-beta protein, cytochrome P450 fold, monooxygenase, cytochrome P450 reductase, endoplasmic reticulum, OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR complex ;; OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR
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.

4k9w__assembly_1__model_1

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

Download this curve (.dat)

4k9w__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4k9w__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.40 Å
Rg (electron density)	22.18 Å
Total Rg	23.17 Å
Atom count	3775
Residues	458
Excluded volume	68651 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4k9w__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4k9w__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`4k9w__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`4k9w__assembly_4__model_1`	monomeric （1）	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	Cytochrome P450 3A4
Molecular weight formula_weight	55757.8 kDa
EC 编号 ec_number	1.14.13.-, 1.14.13.157, 1.14.13.32, 1.14.13.67, 1.14.13.97
Mutation mutation	3-22 deletion
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	15119

MAYLYGTHSHGLFKKLGIPGPTPLPFLGNILSYHKGFCMFDMECHKKYGKVWGFYDGQQPVLAITDPDMIKTVLVKECYSVFTNRRPFGPVGFMKSAISIAEDEEWKRLRSLLSPTFTSGKLKEMVPIIAQYGDVLVRNLRREAETGKPVTLKDVFGAYSMDVITSTSFGVNIDSLNNPQDPFVENTKKLLRFDFLDPFFLSITVFPFLIPILEVLNICVFPREVTNFLRKSVKRMKESRLEDTQKHRVDFLQLMIDSQNSKETESHKALSDLELVAQSIIFIFAGYETTSSVLSFIMYELATHPDVQQKLQEEIDAVLPNKAPPTYDTVLQMEYLDMVVNETLRLFPIAMRLERVCKKDVEINGMFIPKGVVVMIPSYALHRDPKYWTEPEKFLPERFSKKNKDNIDPYIYTPFGSGPRNCIGMRFALMNMKLALIRVLQNFSFKPCKETQIPLKLSLGGLLQPEKPVVLKVESRDGTVSGAHHHH

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	;N~2~-(methyl{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}carbamoyl)-N-[(2R,5S)-1-phenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}octan-2-yl]-L-valinamide ;
Molecular weight formula_weight	656.9 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	22

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d4k9wa_
Class class	a — All alpha proteins
Fold Fold fold	a.104 — Cytochrome P450
Superfamily Superfamily superfamily	a.104.1 — Cytochrome P450
Family Family family	a.104.1.1 — Cytochrome P450

Domain ID domain_id	d4k9wb_
Class class	a — All alpha proteins
Fold Fold fold	a.104 — Cytochrome P450
Superfamily Superfamily superfamily	a.104.1 — Cytochrome P450
Family Family family	a.104.1.1 — Cytochrome P450

Domain ID domain_id	d4k9wc_
Class class	a — All alpha proteins
Fold Fold fold	a.104 — Cytochrome P450
Superfamily Superfamily superfamily	a.104.1 — Cytochrome P450
Family Family family	a.104.1.1 — Cytochrome P450

Domain ID domain_id	d4k9wd_
Class class	a — All alpha proteins
Fold Fold fold	a.104 — Cytochrome P450
Superfamily Superfamily superfamily	a.104.1 — Cytochrome P450
Family Family family	a.104.1.1 — Cytochrome P450

CATH v4.4 (4 domains)

Domain ID domain_id	4k9wA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	630 — Cytochrome p450
Homologous superfamily homologous superfamily	10 — Cytochrome P450

Domain ID domain_id	4k9wB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	630 — Cytochrome p450
Homologous superfamily homologous superfamily	10 — Cytochrome P450

Domain ID domain_id	4k9wC00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	630 — Cytochrome p450
Homologous superfamily homologous superfamily	10 — Cytochrome P450

Domain ID domain_id	4k9wD00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	630 — Cytochrome p450
Homologous superfamily homologous superfamily	10 — Cytochrome P450

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Unit-cell length a length_a	94.020 Å
Unit-cell length b length_b	94.020 Å
Unit-cell length c length_c	199.412 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	12

Space group space_group	P 31
Space-group number int_tables_number	144
Crystal system crystal_system	—

Resolution resolution	2.399 Å
Low-resolution limit resolution_low	47.010 Å
R factor r_factor	0.1656
R_work r_work	0.1639
R_free r_free	0.1981

Complex of human CYP3A4 with a desoxyritonavir analog

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

Cytochrome P450 3A4

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

4k9w__assembly_1__model_1

4k9w__assembly_1__model_1 | I(q)

4k9w__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Complex of human CYP3A4 with a desoxyritonavir analog

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

Cytochrome P450 3A4

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

4k9w__assembly_1__model_1

4k9w__assembly_1__model_1 | I(q)

4k9w__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)