SAXSdb — 1om8

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

SERRALYSIN

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	CALCIUM ION × 6 SULFATE ION × 1 water × 1	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 3	CALCIUM ION × 18 SULFATE ION × 3 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O69771_9PSED
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–463； UniProt 18–480

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	1om8
Deposition date deposition_date	2003-02-25
Structure title title	CRYSTAL STRUCTURE OF A COLD ADAPTED ALKALINE PROTEASE FROM PSEUDOMONAS TAC II 18, CO-CRYSTALLYZED WITH 10 mM EDTA
Keywords keywords	BETA JELLY ROLL, 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.

1om8__assembly_1__model_1

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

Download this curve (.dat)

1om8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1om8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.47 Å
Rg (electron density)	25.12 Å
Total Rg	25.65 Å
Atom count	3335
Residues	452
Excluded volume	58261 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1om8__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1om8__assembly_2__model_1`	trimeric （3）	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	SERRALYSIN
Molecular weight formula_weight	48727.6 kDa
EC 编号 ec_number	3.4.24.40
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3704

ANGTSSAFTQIDNFSHFYDRGDHLVNGKPSFTVDQVADQLTRSGASWHDLNNDGVINLTYTFLTAPPVGYASRGLGTFSQFSALQKEQAKLSLESWADVAKVTFTEGPAARGDDGHMTFANFSASNGGAAFAYLPNSSRKGESWYLINKDYQVNKTPGEGNYGRQTLTHEIGHTLGLSHPGDYNAGNGNPTYRDAVYAEDTRAYSVMSYWSEKNTGQVFTKTGEGAYASAPLLDDIAAVQKLYGANLETRADDTVYGFNSTADRDFYSATSSTDKLIFSVWDGGGNDTLDFSGFSQNQKINLTAGSFSDVGGMTGNVSIAQGVTIENAIGGSGNDLLIGNDAANVLKGGAGNDIIYGGGGADVLWGGTGSDTFVFGAVSDSTPKAADIIKDFQSGFDKIDLTAITKLGGLNFVDAFTGHAGDAIVSYHQASNAGSLQVDFSGQGVADFLVTTVGQVATYDIVA

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	6

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	369

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1om8a1
Class class	b — All beta proteins
Fold Fold fold	b.80 — Single-stranded right-handed beta-helix
Superfamily Superfamily superfamily	b.80.7 — beta-Roll
Family Family family	b.80.7.1 — Serralysin-like metalloprotease, C-terminal domain

Domain ID domain_id	d1om8a2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.92 — Zincin-like
Superfamily Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family family	d.92.1.6 — Serralysin-like metalloprotease, catalytic (N-terminal) domain

CATH v4.4 (2 domains)

Domain ID domain_id	1om8A01
Class class	2 — Mainly Beta
Architecture architecture	150 — 2 Solenoid
Topology topology	10 — Alkaline Protease, subunit P, domain 1
Homologous superfamily homologous superfamily	10 — Serralysin-like metalloprotease, C-terminal

Domain ID domain_id	1om8A02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	390 — Collagenase (Catalytic Domain)
Homologous superfamily homologous superfamily	10 — Collagenase (Catalytic Domain)

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Unit-cell length a length_a	181.700 Å
Unit-cell length b length_b	181.700 Å
Unit-cell length c length_c	37.500 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	9

Space group space_group	H 3
Space-group number int_tables_number	146
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.1940
R_work r_work	0.1770
R_free r_free	0.2080

CRYSTAL STRUCTURE OF A COLD ADAPTED ALKALINE PROTEASE FROM PSEUDOMONAS TAC II 18, CO-CRYSTALLYZED WITH 10 mM EDTA

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

SERRALYSIN

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

1om8__assembly_1__model_1

1om8__assembly_1__model_1 | I(q)

1om8__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF A COLD ADAPTED ALKALINE PROTEASE FROM PSEUDOMONAS TAC II 18, CO-CRYSTALLYZED WITH 10 mM EDTA

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

SERRALYSIN

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

1om8__assembly_1__model_1

1om8__assembly_1__model_1 | I(q)

1om8__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)