SAXSdb — 4f45

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

ADP-ribosyl cyclase 1

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	;[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-3-oxidanyl-4-phosphonooxy-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2R,3S,4R,5R)-5-(3-carboxypyridin-1-ium-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl phosphate ; × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	;[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-3-oxidanyl-4-phosphonooxy-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2R,3S,4R,5R)-5-(3-carboxypyridin-1-ium-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl phosphate ; × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD38_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–257； UniProt 46–300 Author chain B； PDBConstruct 3–257； UniProt 46–300

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	4f45
Deposition date deposition_date	2012-05-10
Structure title title	Crystal structure of human CD38 E226Q mutant in complex with NAADP
Keywords keywords	CD38, ADP-ribosyl cyclase, NAADP, Calcium signaling, 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.

4f45__assembly_1__model_1

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

Download this curve (.dat)

4f45__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4f45__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.23 Å
Rg (electron density)	19.29 Å
Total Rg	20.18 Å
Atom count	2069
Residues	249
Excluded volume	36459 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4f45__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4f45__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 (3)

Entity 1 Entity 1 polymer

Description description	ADP-ribosyl cyclase 1
Molecular weight formula_weight	29811.8 kDa
EC 编号 ec_number	3.2.2.5
Mutation mutation	Q49T, N100D, N164A, N209D, N219D, E226Q
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	4217

EFWRQTWSGPGTTKRFPETVLARCVKYTEIHPEMRHVDCQSVWDAFKGAFISKHPCDITEEDYQPLMKLGTQTVPCNKILLWSRIKDLAHQFTQVQRDMFTLEDTLLGYLADDLTWCGEFDTSKINYQSCPDWRKDCSNNPVSVFWKTVSRRFAEAACDVVHVMLDGSRSKIFDKDSTFGSVQVHNLQPEKVQTLEAWVIHGGREDSRDLCQDPTIKELESIISKRNIQFSCKNIYRPDKFLQCVKNPEDSSCTSEI

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Pichia pastoris

Entity 2 Entity 2 non-polymer

Description description	;[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-3-oxidanyl-4-phosphonooxy-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2R,3S,4R,5R)-5-(3-carboxypyridin-1-ium-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl phosphate ;
Molecular weight formula_weight	744.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	88

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d4f45a1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.14 — N-(deoxy)ribosyltransferase-like
Family Family family	c.23.14.3 — ADP ribosyl cyclase-like

Domain ID domain_id	d4f45a2
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	d4f45b1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.14 — N-(deoxy)ribosyltransferase-like
Family Family family	c.23.14.3 — ADP ribosyl cyclase-like

Domain ID domain_id	d4f45b2
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 (4 domains)

Domain ID domain_id	4f45A01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	82 — ADP Ribosyl Cyclase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — ADP Ribosyl Cyclase; Chain A, domain 1

Domain ID domain_id	4f45A02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	4f45B01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	82 — ADP Ribosyl Cyclase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — ADP Ribosyl Cyclase; Chain A, domain 1

Domain ID domain_id	4f45B02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

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Unit-cell length a length_a	41.694 Å
Unit-cell length b length_b	54.565 Å
Unit-cell length c length_c	63.420 Å
Unit-cell angle α angle_alpha	109.67 °
Unit-cell angle β angle_beta	91.11 °
Unit-cell angle γ angle_gamma	93.68 °
Molecules per unit cell Z z_pdb	2

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

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.1735
R_work r_work	0.1707
R_free r_free	0.2263

Crystal structure of human CD38 E226Q mutant in complex with NAADP

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

ADP-ribosyl cyclase 1

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

4f45__assembly_1__model_1

4f45__assembly_1__model_1 | I(q)

4f45__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of human CD38 E226Q mutant in complex with NAADP

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

ADP-ribosyl cyclase 1

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

4f45__assembly_1__model_1

4f45__assembly_1__model_1 | I(q)

4f45__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)