SAXSdb — 6dd5

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

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

Marinomonas mediterranea MMB-1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1 其他Polymer 1	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 GLYCEROL × 1 SULFATE ION × 9	Consistent with protein count
2	Insufficient information	Monomer	Protein 1 其他Polymer 1	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 GLYCEROL × 1 SULFATE ION × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	F2K1V9_MARM1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 375–678； UniProt 3–306 Author chain B； PDBConstruct 375–678； UniProt 3–306

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

Marinomonas mediterranea MMB-1

UniProt P0AEY0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1 其他Polymer 1	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 GLYCEROL × 1 SULFATE ION × 9	Consistent with protein count
2	Insufficient information	Monomer	Protein 1 其他Polymer 1	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 GLYCEROL × 1 SULFATE ION × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MALE_ECO57
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–359； UniProt 27–384 Author chain B； PDBConstruct 2–359； UniProt 27–384

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	6dd5
Deposition date deposition_date	2018-05-09
Structure title title	Crystal Structure of the Cas6 Domain of Marinomonas mediterranea MMB-1 Cas6-RT-Cas1 Fusion Protein
Keywords keywords	Crispr Cas Protein, Endoribonuclease, HYDROLASE; HYDROLASE
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.

6dd5__assembly_1__model_1

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

Download this curve (.dat)

6dd5__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6dd5__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.97 Å
Rg (electron density)	28.01 Å
Total Rg	28.79 Å
Atom count	5170
Residues	652
Excluded volume	91845 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6dd5__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6dd5__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 (4)

Entity 1 Entity 1 polymer

Description description	MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1
Molecular weight formula_weight	75283.1 kDa
EC 编号 ec_number	3.1.-.-
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	10268

MKIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQTVDAALAAAQTAAAAAMVNSPLIDAVLPLRSVVITLRWLSPSKTGFLHHAGLHAWVRFLAGSPEQFSDFIVVEPIENGHISYQAGDGYRFRITVLNGGESLLDTLFSSLKRLPESAANHPDIAGAFSDNLVLEKIEDTFEHHQVTQIEDLSVFDINALMLETAVWSRQRRFKVAFNTPARLVKPKPEDGTELKGQNRYCRDKSDLNWQLFTHRLTDTFINLFQSRTGERLQRQNWPEAQLHAGLAVWLNNSYTNKKEKKVKDASGMLAQMQIEIDDDFPADLLALLVLGQYIGMGQNRAFGMGQYQLQDAYGYCSYPRPQAA

Source Source

Source organism organism	Marinomonas mediterranea MMB-1
NCBI taxonomy ID ncbi_taxonomy_id	717774
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 branched

Description description	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose
Molecular weight formula_weight	342.3 kDa
Source method src_method	man
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	17

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Unit-cell length a length_a	92.278 Å
Unit-cell length b length_b	110.760 Å
Unit-cell length c length_c	192.906 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	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.850 Å
Low-resolution limit resolution_low	48.226 Å
R factor r_factor	0.1888
R_work r_work	0.1869
R_free r_free	0.2252

Crystal Structure of the Cas6 Domain of Marinomonas mediterranea MMB-1 Cas6-RT-Cas1 Fusion Protein

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

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

State in the Current Structure

Other States of the Same Protein in the Database

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

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

6dd5__assembly_1__model_1

6dd5__assembly_1__model_1 | I(q)

6dd5__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

7. Citations (1)

Crystal Structure of the Cas6 Domain of Marinomonas mediterranea MMB-1 Cas6-RT-Cas1 Fusion Protein

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

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

MMB-1 Cas6 Fused to Maltose Binding Protein,CRISPR-associated endonuclease Cas1

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

6dd5__assembly_1__model_1

6dd5__assembly_1__model_1 | I(q)

6dd5__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

7. Citations (1)