SAXSdb — 9rsa

▼

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

RIBONUCLEASE A

Bos taurus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	3'-DEOXY-3'-ACETAMIDO-URIDINE × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RNAS1_BOVIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–124； UniProt 27–150 Author chain B； PDBConstruct 1–124； UniProt 27–150

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	9rsa
Deposition date deposition_date	1989-08-28
Structure title title	CRYSTAL STRUCTURE OF TWO COVALENT NUCLEOSIDE DERIVATIVES OF RIBONUCLEASE A
Keywords keywords	HYDROLASE (PHOSPHORIC DIESTER); HYDROLASE (PHOSPHORIC DIESTER)
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.

9rsa__assembly_1__model_1

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

Download this curve (.dat)

9rsa__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9rsa__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.02 Å
Rg (electron density)	18.11 Å
Total Rg	18.96 Å
Atom count	1925
Residues	248
Excluded volume	33547 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9rsa__assembly_1__model_1`	dimeric （2）	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	RIBONUCLEASE A
Molecular weight formula_weight	13708.3 kDa
EC 编号 ec_number	3.1.27.5
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2106

KETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVQAVCSQKNVACKNGQTNCYQSYSTMSITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV

Source Source

Source organism organism	Bos taurus
Common name common_name	cattle
NCBI taxonomy ID ncbi_taxonomy_id	9913

Entity 2 Entity 2 non-polymer

Description description	3'-DEOXY-3'-ACETAMIDO-URIDINE
Molecular weight formula_weight	285.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	181

▼

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d9rsaa_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.5 — RNase A-like
Superfamily Superfamily superfamily	d.5.1 — RNase A-like
Family Family family	d.5.1.1 — Ribonuclease A-like

Domain ID domain_id	d9rsab_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.5 — RNase A-like
Superfamily Superfamily superfamily	d.5.1 — RNase A-like
Family Family family	d.5.1.1 — Ribonuclease A-like

CATH v4.4 (2 domains)

Domain ID domain_id	9rsaA00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	130 — P-30 Protein
Homologous superfamily homologous superfamily	10 — Ribonuclease A-like domain

Domain ID domain_id	9rsaB00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	130 — P-30 Protein
Homologous superfamily homologous superfamily	10 — Ribonuclease A-like domain

▶

Unit-cell length a length_a	52.750 Å
Unit-cell length b length_b	64.100 Å
Unit-cell length c length_c	73.150 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.1960
R_work r_work	—
R_free r_free	—

CRYSTAL STRUCTURE OF TWO COVALENT NUCLEOSIDE DERIVATIVES OF RIBONUCLEASE A

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

RIBONUCLEASE A

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

9rsa__assembly_1__model_1

9rsa__assembly_1__model_1 | I(q)

9rsa__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (5)

CRYSTAL STRUCTURE OF TWO COVALENT NUCLEOSIDE DERIVATIVES OF RIBONUCLEASE A

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

RIBONUCLEASE A

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

9rsa__assembly_1__model_1

9rsa__assembly_1__model_1 | I(q)

9rsa__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (5)