SAXSdb — 8fmn

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

Troponin C, slow skeletal and cardiac muscles

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	Troponin T, cardiac muscle × 1 （P45379） Troponin I, cardiac muscle × 1 （P19429） CALCIUM ION × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 3	Troponin T, cardiac muscle × 1 （P45379） Troponin I, cardiac muscle × 1 （P19429） CALCIUM ION × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNC1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–164； UniProt 1–161 Author chain D； PDBConstruct 4–164； UniProt 1–161

Troponin T, cardiac muscle

Homo sapiens

UniProt P45379

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	Troponin C, slow skeletal and cardiac muscles × 1 （P63316） Troponin I, cardiac muscle × 1 （P19429） CALCIUM ION × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 3	Troponin C, slow skeletal and cardiac muscles × 1 （P63316） Troponin I, cardiac muscle × 1 （P19429） CALCIUM ION × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNT2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 4–108； UniProt 193–298 Author chain E； PDBConstruct 4–108； UniProt 193–298

Troponin I, cardiac muscle

Homo sapiens

UniProt P19429

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	Troponin C, slow skeletal and cardiac muscles × 1 （P63316） Troponin T, cardiac muscle × 1 （P45379） CALCIUM ION × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 3	Troponin C, slow skeletal and cardiac muscles × 1 （P63316） Troponin T, cardiac muscle × 1 （P45379） CALCIUM ION × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNI3_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–135； UniProt 32–166 Author chain F； PDBConstruct 1–135； UniProt 32–166

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	8fmn
Deposition date deposition_date	2022-12-23
Last revision last_revision	2024-01-31
Structure title title	Complex structure of K210 deletion Troponin complex
Keywords keywords	Ca sensing complex, troponin complex, K210 deletion, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
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.

8fmn__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

8fmn__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8fmn__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	31.01 Å
Rg (electron density)	31.42 Å
Total Rg	31.61 Å
Atom count	2711
Residues	335
Excluded volume	48142 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8fmn__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`8fmn__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	Troponin C, slow skeletal and cardiac muscles
Molecular weight formula_weight	18673.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D
Atom count atom_count	5379

QGSMDDIYKAAVEQLTEEQKNEFKAAFDIFVLGAEDGSISTKELGKVMRMLGQNPTPEELQEMIDEVDEDGSGTVDFDEFLVMMVRSMKDDSKGKSEEELSDLFRMFDKNADGYIDLEELKIMLQATGETITEDDIEELMKDGDKNNDGRIDYDEFLEFMKGVE

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Troponin T, cardiac muscle
Molecular weight formula_weight	12971.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,E

QGSHFGGYIQKQAQTERKSGKRQTEREKKKILAERRKVLAIDHLNEDQLREKAKELWQSIYNLEAEKFDLQEKFKQQKYEINVLRNRINDNQKVSKTRGKAKVTGRWK

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	Troponin I, cardiac muscle
Molecular weight formula_weight	15405.9 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,F

EPHAKKKSKISASRKLQLKTLLLQIAKQELEREAEERRGEKGRALSTRAQPLELAGLGFAELQDLARQLHARVDKVDEERYDIEAKVTKNITEIADLTQKIFDLRGKFKRPTLRRVRISADAMMQALLGARAKES

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 4 Entity 4 non-polymer

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

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Unit-cell length a length_a	40.272 Å
Unit-cell length b length_b	170.503 Å
Unit-cell length c length_c	69.462 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	101.72 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	3.101 Å
Low-resolution limit resolution_low	43.612 Å
R factor r_factor	0.2401
R_work r_work	0.2387
R_free r_free	0.2659

Complex structure of K210 deletion Troponin complex

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

Troponin C, slow skeletal and cardiac muscles

State in the Current Structure

Other States of the Same Protein in the Database

Troponin T, cardiac muscle

State in the Current Structure

Other States of the Same Protein in the Database

Troponin I, cardiac muscle

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

8fmn__assembly_2__model_1

8fmn__assembly_2__model_1 | I(q)

8fmn__assembly_2__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

7. Citations (1)

Complex structure of K210 deletion Troponin complex

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

Troponin C, slow skeletal and cardiac muscles

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Troponin T, cardiac muscle

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Troponin I, cardiac muscle

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

8fmn__assembly_2__model_1

8fmn__assembly_2__model_1 | I(q)

8fmn__assembly_2__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

7. Citations (1)