SAXSdb — 3en9

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

O-sialoglycoprotein endopeptidase/protein kinase

Methanocaldococcus jannaschii

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GCP_METJA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 6–540； UniProt 1–535 Author chain B； PDBConstruct 6–540； UniProt 1–535

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	3en9
Deposition date deposition_date	2008-09-25
Structure title title	Structure of the Methanococcus jannaschii KAE1-BUD32 fusion protein
Keywords keywords	;endopeptidase activity, protein kinase activity, protein serine/threonine kinase activity, ATP binding, metallopeptidase activity, hydrolase activity, metal ion binding, Hydrolase, Metal-binding, Metalloprotease, Protease, Zinc ;; 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.

3en9__assembly_1__model_1

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

Download this curve (.dat)

3en9__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3en9__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.76 Å
Rg (electron density)	24.88 Å
Total Rg	25.88 Å
Atom count	4141
Residues	519
Excluded volume	74451 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3en9__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3en9__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	O-sialoglycoprotein endopeptidase/protein kinase
Molecular weight formula_weight	61128.4 kDa
EC 编号 ec_number	3.4.24.57
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	8306

GAMDPMICLGLEGTAEKTGVGIVTSDGEVLFNKTIMYKPPKQGINPREAADHHAETFPKLIKEAFEVVDKNEIDLIAFSQGPGLGPSLRVTATVARTLSLTLKKPIIGVNHCIAHIEIGKLTTEAEDPLTLYVSGGNTQVIAYVSKKYRVFGETLDIAVGNCLDQFARYVNLPHPGGPYIEELARKGKKLVDLPYTVKGMDIAFSGLLTAAMRAYDAGERLEDICYSLQEYAFSMLTEITERALAHTNKGEVMLVGGVAANNRLREMLKAMCEGQNVDFYVPPKEFCGDNGAMIAWLGLLMHKNGRWMSLDETKIIPNYRTDMVEVNWIKEIKGKKRKIPEHLIGKGAEADIKRDSYLDFDVIIKERVKKGYRDERLDENIRKSRTAREARYLALVKDFGIPAPYIFDVDLDNKRIMMSYINGKLAKDVIEDNLDIAYKIGEIVGKLHKNDVIHNDLTTSNFIFDKDLYIIDFGLGKISNLDEDKAVDLIVFKKAVLSTHHEKFDEIWERFLEGYKSVYDRWEIILELMKDVERRARYVE

Source Source

Source organism organism	Methanocaldococcus jannaschii
Common name common_name	Methanococcus jannaschii
NCBI taxonomy ID ncbi_taxonomy_id	2190
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	HEXATANTALUM DODECABROMIDE
Molecular weight formula_weight	2044.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	91

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	3en9A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	3en9A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	3en9A03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily	20 — Phosphorylase Kinase; domain 1

Domain ID domain_id	3en9A04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily	10 — Transferase(Phosphotransferase) domain 1

Domain ID domain_id	3en9B01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	3en9B02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	3en9B03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily	20 — Phosphorylase Kinase; domain 1

Domain ID domain_id	3en9B04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily	10 — Transferase(Phosphotransferase) domain 1

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Unit-cell length a length_a	148.730 Å
Unit-cell length b length_b	148.730 Å
Unit-cell length c length_c	136.420 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	16

Space group space_group	P 41 2 2
Space-group number int_tables_number	91
Crystal system crystal_system	—

Resolution resolution	2.670 Å
Low-resolution limit resolution_low	65.294 Å
R factor r_factor	0.2052
R_work r_work	0.2020
R_free r_free	0.2643

Structure of the Methanococcus jannaschii KAE1-BUD32 fusion protein

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

O-sialoglycoprotein endopeptidase/protein kinase

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

3en9__assembly_1__model_1

3en9__assembly_1__model_1 | I(q)

3en9__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

Structure of the Methanococcus jannaschii KAE1-BUD32 fusion protein

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

O-sialoglycoprotein endopeptidase/protein kinase

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

3en9__assembly_1__model_1

3en9__assembly_1__model_1 | I(q)

3en9__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)