SAXSdb — 1v7x

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

chitobiose phosphorylase

Vibrio proteolyticus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	2-acetamido-2-deoxy-alpha-D-glucopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 CALCIUM ION × 4 SULFATE ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q76IQ9_VIBPR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–801； UniProt 1–801

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	1v7x
Deposition date deposition_date	2003-12-24
Structure title title	Crystal structure of Vibrio proteolyticus chitobiose phosphorylase in complex with GlcNAc and sulfate
Keywords keywords	beta-sandwich, (alpha/alpha)6 barrel, 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.

1v7x__assembly_1__model_1

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

Download this curve (.dat)

1v7x__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1v7x__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.50 Å
Rg (electron density)	35.92 Å
Total Rg	36.47 Å
Atom count	12518
Residues	1558
Excluded volume	219060 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1v7x__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 (6)

Entity 1 Entity 1 polymer

Description description	chitobiose phosphorylase
Molecular weight formula_weight	91286.0 kDa
EC 编号 ec_number	2.4.1.-
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	6812

MKYGYFDNDNREYVITRPDVPAPWTNYLGTEKFCTVISHNAGGYSFYNSPEYNRVTKFRPNATFDRPGHYVYLRDDDSGDYWSISWQPVAKSLDEAQYQIRHGLSYSKFQCDYNGIHARKTLFVPKGEDAEIWDVVIKNTSDQVRTISAFSFVEFSFSHIQSDNQNHQMSLYSAGTAYRPGLIEYDLYYNTDDFEGFYYLASTFDPDSYDGQRDRFLGLYRDEANPLAVEQGRCSNSAQTCYNHCGSLHKQFTLQPGEEIRFAYILGIGKGNGERLREHYQDVANIDAAFAAIKAHWDERCAKFQVKSPNQGLDTMINAWTLYQAETCVVWSRFASFIEVGGRTGLGYRDTAQDAISVPHANPEMTRKRIVDLLRGQVKAGYGLHLFDPDWFDPEKEDVAPSKSPTVVPTPSDEDKIHGIKDTCSDDHLWLIPTICKYVMETGETSFFDQMIPYADGGEASVYEHMKAALDFSAEYVGQTGICKGLRADWNDCLNLGGGESSMVSFLHFWALQEFIDLAKFLGKDQDVNTYTEMAANVREACETHLWDDEGGWYIRGLTKNGDKIGTAQQQEGRVHLESNTLAVLSGLASQERGEQAMDAVDEHLFSPYGLHLNAPSFSTPNDDIGFVTRVYQGVKENGAIFSHPNPWAWVAETKLGRGDRAMKFYDALNPYNQNDIIEKRIAEPYSYVQFIMGRDHQDHGRANHPWLTGTSGWAYFAVTNYILGVQSGFTGLSVDPCIPSDWPGFEVTRQWRGATYHIQVENPDHVSKGVKSITLNGAPIQGRIPPQAQGSDNQVVVVLGHHHHHH

Source Source

Source organism organism	Vibrio proteolyticus
NCBI taxonomy ID ncbi_taxonomy_id	671
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	2-acetamido-2-deoxy-alpha-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	553

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6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1v7xa1
Class class	a — All alpha proteins
Fold Fold fold	a.102 — alpha/alpha toroid
Superfamily Superfamily superfamily	a.102.1 — Six-hairpin glycosidases
Family Family family	a.102.1.4 — Glycosyltransferase family 36 C-terminal domain

Domain ID domain_id	d1v7xa2
Class class	b — All beta proteins
Fold Fold fold	b.30 — Supersandwich
Superfamily Superfamily superfamily	b.30.5 — Galactose mutarotase-like
Family Family family	b.30.5.3 — Glycosyltransferase family 36 N-terminal domain

CATH v4.4 (3 domains)

Domain ID domain_id	1v7xA01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	98 — Beta-galactosidase; Chain A, domain 5
Homologous superfamily homologous superfamily	40 — Glycoside hydrolase, family 65, N-terminal domain

Domain ID domain_id	1v7xA02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	420 — Maltose phosphorylase, domain 3
Homologous superfamily homologous superfamily	10 — Maltose phosphorylase, domain 3

Domain ID domain_id	1v7xA03
Class class	1 — Mainly Alpha
Architecture architecture	50 — Alpha/alpha barrel
Topology topology	10 — Glycosyltransferase
Homologous superfamily homologous superfamily	10 —

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Unit-cell length a length_a	140.871 Å
Unit-cell length b length_b	70.355 Å
Unit-cell length c length_c	79.939 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	98.36 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	47.690 Å
R factor r_factor	0.1630
R_work r_work	0.1630
R_free r_free	0.1950

Crystal structure of Vibrio proteolyticus chitobiose phosphorylase in complex with GlcNAc and sulfate

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

chitobiose phosphorylase

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

1v7x__assembly_1__model_1

1v7x__assembly_1__model_1 | I(q)

1v7x__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 (6)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

CATH v4.4 (3 domains)

7. Citations (2)

Crystal structure of Vibrio proteolyticus chitobiose phosphorylase in complex with GlcNAc and sulfate

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

chitobiose phosphorylase

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

1v7x__assembly_1__model_1

1v7x__assembly_1__model_1 | I(q)

1v7x__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 (6)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

CATH v4.4 (3 domains)

7. Citations (2)