SAXSdb — 3aym

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

Rhodopsin

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	PALMITIC ACID × 1 octyl beta-D-glucopyranoside × 1 RETINAL × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	octyl beta-D-glucopyranoside × 1 RETINAL × 1 SULFATE ION × 1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	OPSD_TODPA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–448； UniProt 1–448 Author chain B； PDBConstruct 1–448； UniProt 1–448

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	3aym
Deposition date deposition_date	2011-05-09
Structure title title	Crystal structure of the batho intermediate of squid rhodopsin
Keywords keywords	;transmembrane protein, Photoreceptor, Chromophore, Glycoprotein, Lipoprotein, Gq-type G-protein, Phosphorylation, membrane, SIGNALING PROTEIN ;; SIGNALING PROTEIN
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.

3aym__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3aym__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3aym__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	23.83 Å
Rg (electron density)	22.89 Å
Total Rg	23.76 Å
Atom count	2846
Residues	347
Excluded volume	52002 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3aym__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3aym__assembly_2__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 (7)

Entity 1 Entity 1 polymer

Description description	Rhodopsin
Molecular weight formula_weight	49872.7 kDa
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	5742

MGRDLRDNETWWYNPSIVVHPHWREFDQVPDAVYYSLGIFIGICGIIGCGGNGIVIYLFTKTKSLQTPANMFIINLAFSDFTFSLVNGFPLMTISCFLKKWIFGFAACKVYGFIGGIFGFMSIMTMAMISIDRYNVIGRPMAASKKMSHRRAFIMIIFVWLWSVLWAIGPIFGWGAYTLEGVLCNCSFDYISRDSTTRSNILCMFILGFFGPILIIFFCYFNIVMSVSNHEKEMAAMAKRLNAKELRKAQAGANAEMRLAKISIVIVSQFLLSWSPYAVVALLAQFGPLEWVTPYAAQLPVMFAKASAIHNPMIYSVSHPKFREAISQTFPWVLTCCQFDDKETEDDKDAETEIPAGESSDAAPSADAAQMKEMMAMMQKMQQQQAAYPPQGYAPPPQGYPPQGYPPQGYPPQGYPPQGYPPPPQGAPPQGAPPAAPPQGVDNQAYQA

Entity 2 Entity 2 non-polymer

Description description	PALMITIC ACID
Molecular weight formula_weight	256.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	octyl beta-D-glucopyranoside
Molecular weight formula_weight	292.4 kDa
Source method src_method	man
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	RETINAL
Molecular weight formula_weight	284.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
Molecular weight formula_weight	790.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	59

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	3aymA01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1070 — Rhopdopsin 7-helix transmembrane proteins
Homologous superfamily homologous superfamily	10 — Rhodopsin 7-helix transmembrane proteins

Domain ID domain_id	3aymB01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1070 — Rhopdopsin 7-helix transmembrane proteins
Homologous superfamily homologous superfamily	10 — Rhodopsin 7-helix transmembrane proteins

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Unit-cell length a length_a	122.360 Å
Unit-cell length b length_b	122.360 Å
Unit-cell length c length_c	158.220 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 62
Space-group number int_tables_number	171
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	—
R_work r_work	0.2953
R_free r_free	0.3448

Crystal structure of the batho intermediate of squid rhodopsin

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

Rhodopsin

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

3aym__assembly_2__model_1

3aym__assembly_2__model_1 | I(q)

3aym__assembly_2__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

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 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Crystal structure of the batho intermediate of squid rhodopsin

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

Rhodopsin

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

3aym__assembly_2__model_1

3aym__assembly_2__model_1 | I(q)

3aym__assembly_2__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

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 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)