SAXSdb — 2nlv

▼

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

XisI protein-like

Anabaena variabilis

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q3M6F6_ANAVT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–112； UniProt 1–111 Author chain B； PDBConstruct 2–112； UniProt 1–111

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	2nlv
Deposition date deposition_date	2006-10-20
Structure title title	CRYSTAL STRUCTURE OF A XISI-LIKE PROTEIN (AVA_3825) FROM ANABAENA VARIABILIS ATCC 29413 AT 1.30 A RESOLUTION
Keywords keywords	;XISI-LIKE PROTEIN, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2, PSI-Biology, UNKNOWN FUNCTION ;; UNKNOWN FUNCTION
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.

2nlv__assembly_1__model_1

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

Download this curve (.dat)

2nlv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2nlv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.94 Å
Rg (electron density)	18.12 Å
Total Rg	19.08 Å
Atom count	1812
Residues	214
Excluded volume	32341 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2nlv__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	XisI protein-like
Molecular weight formula_weight	13364.5 kDa
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	2363

GMDKLVKYQELVKKLLTNYASDDVSDQDVEVQLILDTERNHYQWMNVGWQGLNRIYRCVIHFDIKDGKIWLQQNLTDRNPAEELVMMGVPREDIVLGLQAPYKRQYTDYGVA

Source Source

Source organism organism	Anabaena variabilis
NCBI taxonomy ID ncbi_taxonomy_id	240292
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	296

▼

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2nlva1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.326 — XisI-like
Superfamily Superfamily superfamily	d.326.1 — XisI-like
Family Family family	d.326.1.1 — XisI-like

Domain ID domain_id	d2nlva2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2nlvb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.326 — XisI-like
Superfamily Superfamily superfamily	d.326.1 — XisI-like
Family Family family	d.326.1.1 — XisI-like

CATH v4.4 (2 domains)

Domain ID domain_id	2nlvA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	310 — TATA-Binding Protein
Homologous superfamily homologous superfamily	110 — XisI-like

Domain ID domain_id	2nlvB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	310 — TATA-Binding Protein
Homologous superfamily homologous superfamily	110 — XisI-like

▶

Unit-cell length a length_a	46.779 Å
Unit-cell length b length_b	37.354 Å
Unit-cell length c length_c	63.453 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	97.22 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

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

Resolution resolution	1.300 Å
Low-resolution limit resolution_low	29.099 Å
R factor r_factor	0.1760
R_work r_work	0.1750
R_free r_free	0.1950

CRYSTAL STRUCTURE OF A XISI-LIKE PROTEIN (AVA_3825) FROM ANABAENA VARIABILIS ATCC 29413 AT 1.30 A RESOLUTION

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

XisI protein-like

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

2nlv__assembly_1__model_1

2nlv__assembly_1__model_1 | I(q)

2nlv__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF A XISI-LIKE PROTEIN (AVA_3825) FROM ANABAENA VARIABILIS ATCC 29413 AT 1.30 A RESOLUTION

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

XisI protein-like

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

2nlv__assembly_1__model_1

2nlv__assembly_1__model_1 | I(q)

2nlv__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

CATH v4.4 (2 domains)

7. Citations (1)