SAXSdb — 4axh

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

SEC-ALKYLSULFATASE

PSEUDOMONAS SP. DSM 6611

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	F8KAY7_9PSED
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–660； UniProt 1–660 Author chain B； PDBConstruct 1–660； UniProt 1–660

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	4axh
Deposition date deposition_date	2012-06-13
Structure title title	Structure and mechanism of the first inverting alkylsulfatase specific for secondary alkylsulfatases
Keywords keywords	HYDROLASE, REACTION MECHANISM, ZINC-DEPENDENT; 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.

4axh__assembly_1__model_1

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

Download this curve (.dat)

4axh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4axh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.94 Å
Rg (electron density)	31.12 Å
Total Rg	31.87 Å
Atom count	9822
Residues	1262
Excluded volume	174480 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4axh__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	SEC-ALKYLSULFATASE
Molecular weight formula_weight	73979.0 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	10045

MSRFIRASQRRTLLATLIAATLAQPLLAAESLDSKPASAITAAKNAEVLKNLPFADREEFEAAKRGLIAPFSGQIKNAEGQVVWDMGAYQFLNDKDAADTVNPSLWRQAQLNNIAGLFEVMPKLYQVRGLDPANMTIIEGDSGLVLIDTLTTAETARAALDLYFQHRPKKPIVAVVYSHSHIDHFGGARGIIDEADVKAGKVKVFAPSGFMEHAVSENILAGTAMARRGQYQSGVMVPRGAQAQVDSGLFKTTATNATNTLVAPNVLIEKPYERHTVDGVELEFQLTLGSEAPSDMNIYLPQFKVLNTADNAPPAMHNLLTPRGAEVRDAKAWAGYIDASLEKYGDRTDVLIQQHNWPVWGGDKVRTYLADQRDMYAFLNNRALNLMNKGLTLHEIAAEVSKLPGELDRKWYLRSYYGALSTNLRAVYQRYLGFYDGNPANLDPFPPVEAGKRYVEAMGGADAVLKQMRAAIDKGDYRWAVQLGNHLVFADPANKDARALQADAMEQLGYQTENALWRNMYMTGAMELRHGVPTYDSRGKSEMGRALTPDMFFDLLAIRLDTDKAVGHDMTLNWVFEDLKQDIALTLRNGVLTQRVGSLNPKADVTVKLTKPTLDQIAARKLDLPTAIKQGTVKLDGDGKKLGEFFGLLDSFSPKFNIVELEHHHHHH

Source Source

Source organism organism	PSEUDOMONAS SP. DSM 6611
NCBI taxonomy ID ncbi_taxonomy_id	1007495
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 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	136

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6. Fold Classification (SCOP + CATH) 11 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d4axha1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamily	d.157.1 — Metallo-hydrolase/oxidoreductase
Family Family family	d.157.1.0 — automated matches

Domain ID domain_id	d4axha2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.106 — SCP-like
Superfamily Superfamily superfamily	d.106.1 — SCP-like
Family Family family	d.106.1.0 — automated matches

Domain ID domain_id	d4axhb1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamily	d.157.1 — Metallo-hydrolase/oxidoreductase
Family Family family	d.157.1.0 — automated matches

Domain ID domain_id	d4axhb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.106 — SCP-like
Superfamily Superfamily superfamily	d.106.1 — SCP-like
Family Family family	d.106.1.0 — automated matches

Domain ID domain_id	d4axhb3
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

CATH v4.4 (6 domains)

Domain ID domain_id	4axhA01
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily	30 — Metallo-beta-lactamase domain

Domain ID domain_id	4axhA02
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily	880 — Alkyl sulfatase, dimerisation domain

Domain ID domain_id	4axhA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1050 — Nonspecific Lipid-transfer Protein; Chain A
Homologous superfamily homologous superfamily	10 — SCP2 sterol-binding domain

Domain ID domain_id	4axhB01
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily	30 — Metallo-beta-lactamase domain

Domain ID domain_id	4axhB02
Class class	1 — Mainly Alpha
Architecture architecture	25 — Alpha Horseshoe
Topology topology	40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily	880 — Alkyl sulfatase, dimerisation domain

Domain ID domain_id	4axhB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1050 — Nonspecific Lipid-transfer Protein; Chain A
Homologous superfamily homologous superfamily	10 — SCP2 sterol-binding domain

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Unit-cell length a length_a	141.980 Å
Unit-cell length b length_b	141.980 Å
Unit-cell length c length_c	119.680 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	2.700 Å
Low-resolution limit resolution_low	19.590 Å
R factor r_factor	0.2231
R_work r_work	0.2209
R_free r_free	0.2659

Structure and mechanism of the first inverting alkylsulfatase specific for secondary alkylsulfatases

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

SEC-ALKYLSULFATASE

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

4axh__assembly_1__model_1

4axh__assembly_1__model_1 | I(q)

4axh__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) 11 domains

SCOP 2.08 (5 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Structure and mechanism of the first inverting alkylsulfatase specific for secondary alkylsulfatases

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

SEC-ALKYLSULFATASE

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

4axh__assembly_1__model_1

4axh__assembly_1__model_1 | I(q)

4axh__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) 11 domains

SCOP 2.08 (5 domains)

CATH v4.4 (6 domains)

7. Citations (1)