1lkj

NMR Structure of Apo Calmodulin from Yeast Saccharomyces cerevisiae

Method: SOLUTION NMR

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

Calmodulin

Saccharomyces cerevisiae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CALM_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–146； UniProt 2–147

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	1lkj
Deposition date deposition_date	2002-04-25
Structure title title	NMR Structure of Apo Calmodulin from Yeast Saccharomyces cerevisiae
Keywords keywords	yeast calmodulin, saccharomyces cerevisiae, EF-hand, metal binding protein; METAL BINDING PROTEIN
Experimental Method method	SOLUTION NMR

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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.

1lkj__assembly_1__model_14

Assembly 1 · Model 14 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1lkj__assembly_1__model_14 | I(q)

100 plotted points; both axes use logarithmic scales.

1lkj__assembly_1__model_14 | P(r) · Pending

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

Rg（Guinier）	22.79 Å
Rg (electron density)	22.11 Å
Total Rg	22.77 Å
Atom count	2206
Residues	146
Excluded volume	19730 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lkj__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1lkj__assembly_1__model_2`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1lkj__assembly_1__model_3`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1lkj__assembly_1__model_4`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1lkj__assembly_1__model_5`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1lkj__assembly_1__model_6`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1lkj__assembly_1__model_7`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1lkj__assembly_1__model_8`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1lkj__assembly_1__model_9`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1lkj__assembly_1__model_10`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1lkj__assembly_1__model_11`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1lkj__assembly_1__model_12`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1lkj__assembly_1__model_13`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1lkj__assembly_1__model_14`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1lkj__assembly_1__model_15`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1lkj__assembly_1__model_16`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1lkj__assembly_1__model_17`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1lkj__assembly_1__model_18`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1lkj__assembly_1__model_19`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1lkj__assembly_1__model_20`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	21	`1lkj__assembly_1__model_21`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	22	`1lkj__assembly_1__model_22`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	23	`1lkj__assembly_1__model_23`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	24	`1lkj__assembly_1__model_24`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	25	`1lkj__assembly_1__model_25`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	26	`1lkj__assembly_1__model_26`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	27	`1lkj__assembly_1__model_27`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	28	`1lkj__assembly_1__model_28`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	29	`1lkj__assembly_1__model_29`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	30	`1lkj__assembly_1__model_30`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	31	`1lkj__assembly_1__model_31`	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 (1)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1lkja_
Class class	a — All alpha proteins
Fold Fold fold	a.39 — EF Hand-like
Superfamily Superfamily superfamily	a.39.1 — EF-hand
Family Family family	a.39.1.5 — Calmodulin-like

CATH v4.4 (2 domains)

Domain ID domain_id	1lkjA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	238 — Recoverin; domain 1
Homologous superfamily homologous superfamily	10 — EF-hand

Domain ID domain_id	1lkjA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	238 — Recoverin; domain 1
Homologous superfamily homologous superfamily	10 — EF-hand

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Description description	Calmodulin
Molecular weight formula_weight	16016.6 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	68386

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Escherichia coli BL21(DE3)

NMR Structure of Apo Calmodulin from Yeast Saccharomyces cerevisiae

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

Calmodulin

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

1lkj__assembly_1__model_14

1lkj__assembly_1__model_14 | I(q)

1lkj__assembly_1__model_14 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

NMR Structure of Apo Calmodulin from Yeast Saccharomyces cerevisiae

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

Calmodulin

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

1lkj__assembly_1__model_14

1lkj__assembly_1__model_14 | I(q)

1lkj__assembly_1__model_14 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)