SAXSdb — 4bjs

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

TELOMERE LENGTH REGULATOR PROTEIN RIF1

SACCHAROMYCES CEREVISIAE

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RIF1_YEAST
Isoform	—
PDB entities	1, 2
Chains and sequence ranges	Author chain A； PDBConstruct 1–60； UniProt 1857–1916 Author chain B； PDBConstruct 1–60； UniProt 1857–1916 Author chain C； PDBConstruct 1–60； UniProt 1857–1916 Author chain D； PDBConstruct 1–60； UniProt 1857–1916

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	4bjs
Deposition date deposition_date	2013-04-19
Structure title title	Crystal structure of the Rif1 C-terminal domain (Rif1-CTD) from Saccharomyces cerevisiae
Keywords keywords	CELL CYCLE, TELOMERE ASSOCIATED PROTEINS; CELL CYCLE
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.

4bjs__assembly_1__model_1

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

Download this curve (.dat)

4bjs__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4bjs__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.21 Å
Rg (electron density)	16.97 Å
Total Rg	17.88 Å
Atom count	3436
Residues	209
Excluded volume	30563 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4bjs__assembly_1__model_1`	tetrameric （4）	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 (3)

Entity 1 Entity 1 polymer

Description description	TELOMERE LENGTH REGULATOR PROTEIN RIF1
Molecular weight formula_weight	7216.3 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	3678

PSLKVHFFSKKSRRLVARLRGFTPGDLNGISVEERRNLRIELLDFMMRLEYYSNRDNDMN

Source Source

Source organism organism	SACCHAROMYCES CEREVISIAE
Common name common_name	;BAKER'S YEAST ;
NCBI taxonomy ID ncbi_taxonomy_id	559292
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	TELOMERE LENGTH REGULATOR PROTEIN RIF1
Molecular weight formula_weight	7230.3 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

PSLKLHFFSKKSRRLVARLRGFTPGDLNGISVEERRNLRIELLDFMMRLEYYSNRDNDMN

Source Source

Source organism organism	SACCHAROMYCES CEREVISIAE
Common name common_name	;BAKER'S YEAST ;
NCBI taxonomy ID ncbi_taxonomy_id	559292
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	186

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	4bjsA00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	140 — Helix Hairpins
Homologous superfamily homologous superfamily	1760 —

Domain ID domain_id	4bjsB00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	140 — Helix Hairpins
Homologous superfamily homologous superfamily	1760 —

Domain ID domain_id	4bjsC00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	140 — Helix Hairpins
Homologous superfamily homologous superfamily	1760 —

Domain ID domain_id	4bjsD00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	140 — Helix Hairpins
Homologous superfamily homologous superfamily	1760 —

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Unit-cell length a length_a	34.789 Å
Unit-cell length b length_b	34.842 Å
Unit-cell length c length_c	46.214 Å
Unit-cell angle α angle_alpha	87.41 °
Unit-cell angle β angle_beta	79.89 °
Unit-cell angle γ angle_gamma	82.31 °
Molecules per unit cell Z z_pdb	3

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

Resolution resolution	1.940 Å
Low-resolution limit resolution_low	17.260 Å
R factor r_factor	0.1721
R_work r_work	0.1708
R_free r_free	0.1963

Crystal structure of the Rif1 C-terminal domain (Rif1-CTD) from Saccharomyces cerevisiae

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

TELOMERE LENGTH REGULATOR PROTEIN RIF1

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

4bjs__assembly_1__model_1

4bjs__assembly_1__model_1 | I(q)

4bjs__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of the Rif1 C-terminal domain (Rif1-CTD) from Saccharomyces cerevisiae

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

TELOMERE LENGTH REGULATOR PROTEIN RIF1

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

4bjs__assembly_1__model_1

4bjs__assembly_1__model_1 | I(q)

4bjs__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)