SAXSdb — 1y9w

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

Acetyltransferase

Bacillus cereus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q81CG1_BACCR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–140； UniProt 1–140 Author chain B； PDBConstruct 1–140； UniProt 1–140

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	1y9w
Deposition date deposition_date	2004-12-16
Structure title title	Structural Genomics, 1.9A crystal structure of an acetyltransferase from Bacillus cereus ATCC 14579
Keywords keywords	;Bacillus cereus, acetyltransferase, Structural Genomics, Protein Structure Initiative, PSI, Midwest Center for Structural Genomics, MCSG, TRANSFERASE ;; TRANSFERASE
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.

1y9w__assembly_1__model_1

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

Download this curve (.dat)

1y9w__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1y9w__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.44 Å
Rg (electron density)	20.48 Å
Total Rg	21.53 Å
Atom count	2324
Residues	280
Excluded volume	41301 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1y9w__assembly_1__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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1y9wa1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.108 — Acyl-CoA N-acyltransferases (Nat)
Superfamily Superfamily superfamily	d.108.1 — Acyl-CoA N-acyltransferases (Nat)
Family Family family	d.108.1.1 — N-acetyl transferase, NAT

Domain ID domain_id	d1y9wb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.108 — Acyl-CoA N-acyltransferases (Nat)
Superfamily Superfamily superfamily	d.108.1 — Acyl-CoA N-acyltransferases (Nat)
Family Family family	d.108.1.1 — N-acetyl transferase, NAT

CATH v4.4 (2 domains)

Domain ID domain_id	1y9wA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	630 — Aminopeptidase
Homologous superfamily homologous superfamily	30 — Gcn5-related N-acetyltransferase (GNAT)

Domain ID domain_id	1y9wB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	630 — Aminopeptidase
Homologous superfamily homologous superfamily	30 — Gcn5-related N-acetyltransferase (GNAT)

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Unit-cell length a length_a	55.032 Å
Unit-cell length b length_b	65.344 Å
Unit-cell length c length_c	89.193 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	1.900 Å
Low-resolution limit resolution_low	26.800 Å
R factor r_factor	0.2020
R_work r_work	0.2020
R_free r_free	0.2540

Description description	Acetyltransferase
Molecular weight formula_weight	16485.8 kDa
EC 编号 ec_number	2.3.1.-
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2574

Structural Genomics, 1.9A crystal structure of an acetyltransferase from Bacillus cereus ATCC 14579

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

Acetyltransferase

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

1y9w__assembly_1__model_1

1y9w__assembly_1__model_1 | I(q)

1y9w__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Bacillus cereus
NCBI taxonomy ID ncbi_taxonomy_id	226900
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	250

Structural Genomics, 1.9A crystal structure of an acetyltransferase from Bacillus cereus ATCC 14579

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

Acetyltransferase

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

1y9w__assembly_1__model_1

1y9w__assembly_1__model_1 | I(q)

1y9w__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)