SAXSdb — 4y3i

▼

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

Bacteriophytochrome

Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)

UniProt Q9RZA4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	;3-[2-[(Z)-[3-(2-carboxyethyl)-5-[(Z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-1-ium -2-ylidene]methyl]-5-[(Z)-[(3E)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-4-methyl-1H-pyrrol-3- yl]propanoic acid ; × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BPHY_DEIRA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–318； UniProt 4–321

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	4y3i
Deposition date deposition_date	2015-02-10
Structure title title	PAS-GAF fragment from Deinococcus radiodurans BphP assembled with BV - Y307S, low dose
Keywords keywords	low-dose, spectroscopy, bilin chromophore, phythochrome, TRANSFERASE; TRANSFERASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

4y3i__assembly_1__model_1

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

Download this curve (.dat)

4y3i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4y3i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.69 Å
Rg (electron density)	19.64 Å
Total Rg	20.48 Å
Atom count	2446
Residues	319
Excluded volume	43639 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4y3i__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	Bacteriophytochrome
Molecular weight formula_weight	34463.3 kDa
EC 编号 ec_number	2.7.13.3
Mutation mutation	Y307S
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2693

DPLPFFPPLYLGGPEITTENCEREPIHIPGSIQPHGALLTADGHSGEVLQMSLNAATFLGQEPTVLRGQTLAALLPEQWPALQAALPPGCPDALQYRATLDWPAAGHLSLTVHRVGELLILEFEPTEAWDSTGPHALRNAMFALESAPNLRALAEVATQTVRELTGFDRVMLYKFAPDATGEVIAEARREGLHAFLGHRFPASDIPAQARALYTRHLLRLTADTRAAAVPLDPVLNPQTNAPTPLGGAVLRATSPMHMQYLRNMGVGSSLSVSVVVGGQLWGLIACHHQTPYVLPPDLRTTLESLGRLLSLQVQVKEAH

Source Source

Source organism organism	Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)
NCBI taxonomy ID ncbi_taxonomy_id	243230
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	;3-[2-[(Z)-[3-(2-carboxyethyl)-5-[(Z)-(4-ethenyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-1-ium -2-ylidene]methyl]-5-[(Z)-[(3E)-3-ethylidene-4-methyl-5-oxidanylidene-pyrrolidin-2-ylidene]methyl]-4-methyl-1H-pyrrol-3- yl]propanoic acid ;
Molecular weight formula_weight	585.7 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	119

▼

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	4y3iA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	20 — PAS domain

Domain ID domain_id	4y3iA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	40 — GAF domain

▶

Unit-cell length a length_a	89.481 Å
Unit-cell length b length_b	51.917 Å
Unit-cell length c length_c	80.339 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	116.22 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	1.690 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.1921
R_work r_work	0.1902
R_free r_free	0.2261

PAS-GAF fragment from Deinococcus radiodurans BphP assembled with BV - Y307S, low dose

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

Bacteriophytochrome

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

4y3i__assembly_1__model_1

4y3i__assembly_1__model_1 | I(q)

4y3i__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

PAS-GAF fragment from Deinococcus radiodurans BphP assembled with BV - Y307S, low dose

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

Bacteriophytochrome

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

4y3i__assembly_1__model_1

4y3i__assembly_1__model_1 | I(q)

4y3i__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)