SAXSdb — 5g5d

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

CELLULOSOME ANCHORING PROTEIN COHESIN REGION

RUMINICLOSTRIDIUM THERMOCELLUM AD2

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A0U3TQ90_CLOTM
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–163； UniProt 205–364

CELLULOSOMAL-SCAFFOLDING PROTEIN A

CLOSTRIDIUM THERMOCELLUM

UniProt Q06851

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
2	Protein monomer	Monomer	Protein 1	CALCIUM ION × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CIPA_CLOTH
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 2–164； UniProt 1691–1853

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	5g5d
Deposition date deposition_date	2016-05-23
Structure title title	Crystal Structure of the CohScaC2-XDocCipA type II complex from Clostridium thermocellum
Keywords keywords	CARBOHYDRATE BINDING PROTEIN, COHESIN-DOCKERIN COMPLEX, TYPE II INTERACTION, SCAFFOLDIN, CELLULOSOME, C. THERMOCELLUM; CARBOHYDRATE BINDING PROTEIN
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.

5g5d__assembly_1__model_1

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

Download this curve (.dat)

5g5d__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5g5d__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.03 Å
Rg (electron density)	15.92 Å
Total Rg	16.98 Å
Atom count	1237
Residues	160
Excluded volume	22287 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5g5d__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`5g5d__assembly_2__model_1`	monomeric （1）	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	CELLULOSOME ANCHORING PROTEIN COHESIN REGION
Molecular weight formula_weight	18947.5 kDa
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	2422

MASAHIALELDKTKVKVGDVIVATVKAKNMTSMAGIQVNIKYDPEVLQAIDPATGKPFTKETLLVDPELLSNREYNPLLTAVNDINSGIINYASCYVYWDSYRESGVSESTGIIGKVGFKVLKAANTTVKLEETRFTPNSIDGTLVIDWYGQQIVGYKVIQPDLEHHHHHH

Source Source

Source organism organism	RUMINICLOSTRIDIUM THERMOCELLUM AD2
NCBI taxonomy ID ncbi_taxonomy_id	1138384
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	CELLULOSOMAL-SCAFFOLDING PROTEIN A
Molecular weight formula_weight	17779.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MNKPVIEGYKVSGYILPDFSFDATVAPLVKAGFKVEIVGTELYAVTDANGYFEITGVPANASGYTLKISRATYLDRVIANVVVTGDTSVSTSQAPIMMWVGKIVKDNSINLLDVAEVIRCFNATKGSANYVEELDINRNGAINMQDIMIVHKHFGATSSDYDAQ

Source Source

Source organism organism	CLOSTRIDIUM THERMOCELLUM
NCBI taxonomy ID ncbi_taxonomy_id	203119
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 non-polymer

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

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d5g5da_
Class class	b — All beta proteins
Fold Fold fold	b.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f
Superfamily Superfamily superfamily	b.2.2 — Carbohydrate-binding domain
Family Family family	b.2.2.0 — automated matches

Domain ID domain_id	d5g5db1
Class class	b — All beta proteins
Fold Fold fold	b.3 — Prealbumin-like
Superfamily Superfamily superfamily	b.3.2 — Carboxypeptidase regulatory domain-like
Family Family family	b.3.2.2 — Pre-dockerin domain

Domain ID domain_id	d5g5db2
Class class	a — All alpha proteins
Fold Fold fold	a.139 — Type I dockerin domain
Superfamily Superfamily superfamily	a.139.1 — Type I dockerin domain
Family Family family	a.139.1.0 — automated matches

CATH v4.4 (3 domains)

Domain ID domain_id	5g5dA00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	680 —

Domain ID domain_id	5g5dB01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1120 — Carboxypeptidase-like, regulatory domain

Domain ID domain_id	5g5dB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1330 — Type 1 dockerin domain
Homologous superfamily homologous superfamily	10 — Dockerin domain

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Unit-cell length a length_a	52.360 Å
Unit-cell length b length_b	125.805 Å
Unit-cell length c length_c	130.467 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	8

Space group space_group	I 2 2 2
Space-group number int_tables_number	23
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	90.560 Å
R factor r_factor	0.2606
R_work r_work	0.2555
R_free r_free	0.3031

Crystal Structure of the CohScaC2-XDocCipA type II complex from Clostridium thermocellum

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

CELLULOSOME ANCHORING PROTEIN COHESIN REGION

State in the Current Structure

Other States of the Same Protein in the Database

CELLULOSOMAL-SCAFFOLDING PROTEIN A

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

5g5d__assembly_1__model_1

5g5d__assembly_1__model_1 | I(q)

5g5d__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 non-polymer

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)

Crystal Structure of the CohScaC2-XDocCipA type II complex from Clostridium thermocellum

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

CELLULOSOME ANCHORING PROTEIN COHESIN REGION

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

CELLULOSOMAL-SCAFFOLDING PROTEIN A

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

5g5d__assembly_1__model_1

5g5d__assembly_1__model_1 | I(q)

5g5d__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 non-polymer

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)