SAXSdb — 1j9i

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

TERMINASE SMALL SUBUNIT

Enterobacteria phage lambda

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	TERS_LAMBD
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–68； UniProt 1–68 Author chain B； PDBConstruct 1–68； UniProt 1–68

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	1j9i
Deposition date deposition_date	2001-05-25
Structure title title	STRUCTURE OF THE DNA BINDING DOMAIN OF THE GPNU1 SUBUNIT OF LAMBDA TERMINASE
Keywords keywords	DNA BINDING DOMAIN, HOMODIMER, VIRAL ASSEMBLY, LAMBDA, WINGED HELIX-TURN-HELIX, TERMINASE, Viral protein; VIRAL PROTEIN
Experimental Method method	SOLUTION NMR

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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.

1j9i__assembly_1__model_15

Assembly 1 · Model 15 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1j9i__assembly_1__model_15 | I(q)

100 plotted points; both axes use logarithmic scales.

1j9i__assembly_1__model_15 | P(r) · Pending

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

Rg（Guinier）	17.27 Å
Rg (electron density)	15.75 Å
Total Rg	16.92 Å
Atom count	2180
Residues	136
Excluded volume	19334 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1j9i__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1j9i__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1j9i__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1j9i__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1j9i__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1j9i__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1j9i__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1j9i__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1j9i__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1j9i__assembly_1__model_10`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1j9i__assembly_1__model_11`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1j9i__assembly_1__model_12`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1j9i__assembly_1__model_13`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1j9i__assembly_1__model_14`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1j9i__assembly_1__model_15`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1j9i__assembly_1__model_16`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1j9i__assembly_1__model_17`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1j9i__assembly_1__model_18`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1j9i__assembly_1__model_19`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1j9i__assembly_1__model_20`	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 (2 domains)

Domain ID domain_id	d1j9ia_
Class class	a — All alpha proteins
Fold Fold fold	a.6 — Putative DNA-binding domain
Superfamily Superfamily superfamily	a.6.1 — Putative DNA-binding domain
Family Family family	a.6.1.5 — Terminase gpNU1 subunit domain

Domain ID domain_id	d1j9ib_
Class class	a — All alpha proteins
Fold Fold fold	a.6 — Putative DNA-binding domain
Superfamily Superfamily superfamily	a.6.1 — Putative DNA-binding domain
Family Family family	a.6.1.5 — Terminase gpNU1 subunit domain

CATH v4.4 (2 domains)

Domain ID domain_id	1j9iA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Domain ID domain_id	1j9iB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Description description	TERMINASE SMALL SUBUNIT
Molecular weight formula_weight	7818.8 kDa
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	43600

Source organism organism	Enterobacteria phage lambda
NCBI taxonomy ID ncbi_taxonomy_id	10710
Host organism host_organism	Escherichia coli

STRUCTURE OF THE DNA BINDING DOMAIN OF THE GPNU1 SUBUNIT OF LAMBDA TERMINASE

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

TERMINASE SMALL SUBUNIT

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

1j9i__assembly_1__model_15

1j9i__assembly_1__model_15 | I(q)

1j9i__assembly_1__model_15 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

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 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

STRUCTURE OF THE DNA BINDING DOMAIN OF THE GPNU1 SUBUNIT OF LAMBDA TERMINASE

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

TERMINASE SMALL SUBUNIT

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

1j9i__assembly_1__model_15

1j9i__assembly_1__model_15 | I(q)

1j9i__assembly_1__model_15 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

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 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)