SAXSdb — 1kan

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

KANAMYCIN NUCLEOTIDYLTRANSFERASE

Staphylococcus aureus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KANU_STAAU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–253； UniProt 1–253 Author chain B； PDBConstruct 1–253； UniProt 1–253

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	1kan
Deposition date deposition_date	1993-08-13
Structure title title	MOLECULAR STRUCTURE OF KANAMYCIN NUCLEOTIDYLTRANSFERASE DETERMINED TO 3.0-ANGSTROMS RESOLUTION
Keywords keywords	NUCLEOTIDYLTRANSFERASE; NUCLEOTIDYLTRANSFERASE
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.

1kan__assembly_1__model_1

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

Download this curve (.dat)

1kan__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1kan__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.19 Å
Rg (electron density)	23.32 Å
Total Rg	23.69 Å
Atom count	0
Residues	0
Excluded volume	70382 Å³
Maximum q	0.500 Å⁻¹

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

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1kana1
Class class	a — All alpha proteins
Fold Fold fold	a.24 — Four-helical up-and-down bundle
Superfamily Superfamily superfamily	a.24.16 — Nucleotidyltransferase substrate binding subunit/domain
Family Family family	a.24.16.1 — Kanamycin nucleotidyltransferase (KNTase), C-terminal domain

Domain ID domain_id	d1kana2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.218 — Nucleotidyltransferase
Superfamily Superfamily superfamily	d.218.1 — Nucleotidyltransferase
Family Family family	d.218.1.1 — Kanamycin nucleotidyltransferase (KNTase), N-terminal domain

Domain ID domain_id	d1kanb1
Class class	a — All alpha proteins
Fold Fold fold	a.24 — Four-helical up-and-down bundle
Superfamily Superfamily superfamily	a.24.16 — Nucleotidyltransferase substrate binding subunit/domain
Family Family family	a.24.16.1 — Kanamycin nucleotidyltransferase (KNTase), C-terminal domain

Domain ID domain_id	d1kanb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.218 — Nucleotidyltransferase
Superfamily Superfamily superfamily	d.218.1 — Nucleotidyltransferase
Family Family family	d.218.1.1 — Kanamycin nucleotidyltransferase (KNTase), N-terminal domain

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Unit-cell length a length_a	78.900 Å
Unit-cell length b length_b	78.900 Å
Unit-cell length c length_c	219.200 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	16

Space group space_group	P 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	0.1890
R_work r_work	—
R_free r_free	—

Description description	KANAMYCIN NUCLEOTIDYLTRANSFERASE
Molecular weight formula_weight	28901.7 kDa
EC 编号 ec_number	2.7.7.-
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	506

MOLECULAR STRUCTURE OF KANAMYCIN NUCLEOTIDYLTRANSFERASE DETERMINED TO 3.0-ANGSTROMS RESOLUTION

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

KANAMYCIN NUCLEOTIDYLTRANSFERASE

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

1kan__assembly_1__model_1

1kan__assembly_1__model_1 | I(q)

1kan__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)

Source organism organism	Staphylococcus aureus
NCBI taxonomy ID ncbi_taxonomy_id	1280

MOLECULAR STRUCTURE OF KANAMYCIN NUCLEOTIDYLTRANSFERASE DETERMINED TO 3.0-ANGSTROMS RESOLUTION

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

KANAMYCIN NUCLEOTIDYLTRANSFERASE

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

1kan__assembly_1__model_1

1kan__assembly_1__model_1 | I(q)

1kan__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)