2r8y

Crystal structure of YrbI phosphatase from Escherichia coli in a complex with Ca

Method: X-RAY DIFFRACTION

▼

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

YrbI from Escherichia coli

Escherichia coli

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KDSC_ECOL6
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–188； UniProt 1–188 Author chain B； PDBConstruct 1–188； UniProt 1–188 Author chain C； PDBConstruct 1–188； UniProt 1–188 Author chain D； PDBConstruct 1–188； UniProt 1–188 Author chain E； PDBConstruct 1–188； UniProt 1–188 Author chain F； PDBConstruct 1–188； UniProt 1–188 Author chain G； PDBConstruct 1–188； UniProt 1–188 Author chain H； PDBConstruct 1–188； UniProt 1–188 Author chain I； PDBConstruct 1–188； UniProt 1–188 Author chain J； PDBConstruct 1–188； UniProt 1–188 Author chain K； PDBConstruct 1–188； UniProt 1–188 Author chain L； PDBConstruct 1–188； UniProt 1–188 Author chain M； PDBConstruct 1–188； UniProt 1–188 Author chain N； PDBConstruct 1–188； UniProt 1–188 Author chain O； PDBConstruct 1–188； UniProt 1–188 Author chain P； PDBConstruct 1–188； UniProt 1–188

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	2r8y
Deposition date deposition_date	2007-09-11
Structure title title	Crystal structure of YrbI phosphatase from Escherichia coli in a complex with Ca
Keywords keywords	YrbI, phosphatase, divalent metal, ca, HAD superfamily, KDO8-P, HYDROLASE; HYDROLASE
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.

2r8y__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2r8y__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2r8y__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	27.09 Å
Rg (electron density)	26.19 Å
Total Rg	27.01 Å
Atom count	5349
Residues	715
Excluded volume	96296 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2r8y__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2r8y__assembly_2__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2r8y__assembly_3__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`2r8y__assembly_4__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	YrbI from Escherichia coli
Molecular weight formula_weight	20036.1 kDa
Source method src_method	man
Copy count entity_count	16

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P
Atom count atom_count	22566

MSKAGASLATCYGPVSADVMAKAENIRLLILDVDGVLSDGLIYMGNNGEELKAFNVRDGYGIRCALTSDIEVAIITGRKAKLVEDRCATLGITHLYQGQSNKLIAFSDLLEKLAIAPENVAYVGDDLIDWPVMEKVGLSVAVADAHPLLIPRADYVTRIAGGRGAVREVCDLLLLAQGKLDEAKGQSI

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	16

Entity 3 Entity 3 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	16

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	985

▼

6. Fold Classification (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

Domain ID domain_id	d2r8ya_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8ye_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yf_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yg_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yh_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yi_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yj_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yk_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yl_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8ym_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yn_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yo_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

Domain ID domain_id	d2r8yp_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.108 — HAD-like
Superfamily Superfamily superfamily	c.108.1 — HAD-like
Family Family family	c.108.1.0 — automated matches

CATH v4.4 (16 domains)

Domain ID domain_id	2r8yA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yC00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yD00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yE00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yF00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yG00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yH00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yI00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yJ00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yK00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yL00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yM00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yN00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yO00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	2r8yP00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

▶

Unit-cell length a length_a	85.578 Å
Unit-cell length b length_b	156.947 Å
Unit-cell length c length_c	113.991 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	96.72 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	32

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.850 Å
Low-resolution limit resolution_low	36.610 Å
R factor r_factor	0.2150
R_work r_work	0.2135
R_free r_free	0.2443

Crystal structure of YrbI phosphatase from Escherichia coli in a complex with Ca

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

YrbI from Escherichia coli

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

2r8y__assembly_2__model_1

2r8y__assembly_2__model_1 | I(q)

2r8y__assembly_2__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. Citations (1)

Crystal structure of YrbI phosphatase from Escherichia coli in a complex with Ca

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

YrbI from Escherichia coli

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

2r8y__assembly_2__model_1

2r8y__assembly_2__model_1 | I(q)

2r8y__assembly_2__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 32 domains

SCOP 2.08 (16 domains)

CATH v4.4 (16 domains)

7. Citations (1)