SAXSdb — 7ztm

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

Serine protease subunit NS2B

Zika virus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	;1-[(5R,8R,15S,18S)-15-(4-azanylbutyl)-5-(cyclohexylmethyl)-18-(naphthalen-2-ylmethyl)-4,7,14,17,20-pentakis(oxidanylidene)-3,6,13,16,19-pentazabicyclo[20.3.1]hexacosa-1(25),22(26),23-trien-8-yl]guanidine ; × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	POLG_ZIKV
Isoform	—
PDB entities	1, 2
Chains and sequence ranges	Author chain A； PDBConstruct 3–53； UniProt 1414–1464 Author chain B； PDBConstruct 2–178； UniProt 1499–1675

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	7ztm
Deposition date deposition_date	2022-05-10
Structure title title	Crystal Structure of Unlinked NS2B-NS3 Protease from Zika Virus in Complex with Inhibitor MI-2128
Keywords keywords	FLAVIVIRIN, SERINE PROTEASE, VIRAL PROTEIN, NS2B-NS3, ZIKA VIRUS; VIRAL 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.

7ztm__assembly_1__model_1

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

Download this curve (.dat)

7ztm__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7ztm__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.74 Å
Rg (electron density)	15.53 Å
Total Rg	16.66 Å
Atom count	2761
Residues	191
Excluded volume	25732 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7ztm__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 (4)

Entity 1 Entity 1 polymer

Description description	Serine protease subunit NS2B
Molecular weight formula_weight	5865.4 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	2992

MTGKSVDMYIERAGDITWEKDAEVTGNSPRLDVALDESGDFSLVEEDGPPMRE

Source Source

Source organism organism	Zika virus
NCBI taxonomy ID ncbi_taxonomy_id	64320
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	Serine protease NS3
Molecular weight formula_weight	19037.6 kDa
EC 编号 ec_number	3.4.21.91,3.6.1.15,3.6.4.13
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GSGALWDVPAPKEVKKGETTDGVYRVMTRRLLGSTQVGVGVMQEGVFHTMWHVTKGAALRSGEGRLDPYWGDVKQDLVSYCGPWKLDAAWDGLSEVQLLAVPPGERAKNIQTLPGIFKTKDGDIGAVALDYPAGTSGSPILDKCGRVIGLYGNGVVIKNGSYVSAITQGKREEETPVE

Source Source

Source organism organism	Zika virus
NCBI taxonomy ID ncbi_taxonomy_id	64320
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 3 Entity 3 non-polymer

Description description	;1-[(5R,8R,15S,18S)-15-(4-azanylbutyl)-5-(cyclohexylmethyl)-18-(naphthalen-2-ylmethyl)-4,7,14,17,20-pentakis(oxidanylidene)-3,6,13,16,19-pentazabicyclo[20.3.1]hexacosa-1(25),22(26),23-trien-8-yl]guanidine ;
Molecular weight formula_weight	796.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	179

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Unit-cell length a length_a	49.622 Å
Unit-cell length b length_b	60.563 Å
Unit-cell length c length_c	80.883 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	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	orthorhombic

Resolution resolution	1.450 Å
Low-resolution limit resolution_low	42.310 Å
R factor r_factor	0.1491
R_work r_work	0.1479
R_free r_free	0.1748

Crystal Structure of Unlinked NS2B-NS3 Protease from Zika Virus in Complex with Inhibitor MI-2128

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

Serine protease subunit NS2B

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

7ztm__assembly_1__model_1

7ztm__assembly_1__model_1 | I(q)

7ztm__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)

Crystal Structure of Unlinked NS2B-NS3 Protease from Zika Virus in Complex with Inhibitor MI-2128

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

Serine protease subunit NS2B

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

7ztm__assembly_1__model_1

7ztm__assembly_1__model_1 | I(q)

7ztm__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)