SAXSdb — 2w49

▼

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

TROPONIN C, SKELETAL MUSCLE

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 36	TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS × 4 （P12620） TROPONIN I, FAST SKELETAL MUSCLE × 4 （P68246） TROPOMYOSIN ALPHA-1 CHAIN × 8 （P58772） ACTIN, ALPHA SKELETAL MUSCLE × 16 （P68135） CALCIUM ION × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNC2_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain 0； PDBConstruct 1–159； UniProt 5–163 Author chain 3； PDBConstruct 1–159； UniProt 5–163 Author chain 6； PDBConstruct 1–159； UniProt 5–163 Author chain 9； PDBConstruct 1–159； UniProt 5–163

TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS

OrganismNot specified

UniProt P12620

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 36	TROPONIN C, SKELETAL MUSCLE × 4 （P02588） TROPONIN I, FAST SKELETAL MUSCLE × 4 （P68246） TROPOMYOSIN ALPHA-1 CHAIN × 8 （P58772） ACTIN, ALPHA SKELETAL MUSCLE × 16 （P68135） CALCIUM ION × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNT3_CHICK
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain 1； PDBConstruct 1–90； UniProt 148–237 Author chain 4； PDBConstruct 1–90； UniProt 148–237 Author chain 7； PDBConstruct 1–90； UniProt 148–237 Author chain Y； PDBConstruct 1–90； UniProt 148–237

TROPONIN I, FAST SKELETAL MUSCLE

OrganismNot specified

UniProt P68246

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 36	TROPONIN C, SKELETAL MUSCLE × 4 （P02588） TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS × 4 （P12620） TROPOMYOSIN ALPHA-1 CHAIN × 8 （P58772） ACTIN, ALPHA SKELETAL MUSCLE × 16 （P68135） CALCIUM ION × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TNNI2_CHICK
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain 2； PDBConstruct 1–141； UniProt 4–144 Author chain 5； PDBConstruct 1–141； UniProt 4–144 Author chain 8； PDBConstruct 1–141； UniProt 4–144 Author chain Z； PDBConstruct 1–141； UniProt 4–144

TROPOMYOSIN ALPHA-1 CHAIN

OrganismNot specified

UniProt P58772

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 36	TROPONIN C, SKELETAL MUSCLE × 4 （P02588） TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS × 4 （P12620） TROPONIN I, FAST SKELETAL MUSCLE × 4 （P68246） ACTIN, ALPHA SKELETAL MUSCLE × 16 （P68135） CALCIUM ION × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TPM1_RABIT
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain A； PDBConstruct 1–277； UniProt 8–284 Author chain B； PDBConstruct 1–277； UniProt 8–284 Author chain C； PDBConstruct 1–277； UniProt 8–284 Author chain T； PDBConstruct 1–277； UniProt 8–284 Author chain U； PDBConstruct 1–277； UniProt 8–284 Author chain V； PDBConstruct 1–277； UniProt 8–284 Author chain W； PDBConstruct 1–277； UniProt 8–284 Author chain X； PDBConstruct 1–277； UniProt 8–284

ACTIN, ALPHA SKELETAL MUSCLE

OrganismNot specified

UniProt P68135

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 36	TROPONIN C, SKELETAL MUSCLE × 4 （P02588） TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS × 4 （P12620） TROPONIN I, FAST SKELETAL MUSCLE × 4 （P68246） TROPOMYOSIN ALPHA-1 CHAIN × 8 （P58772） CALCIUM ION × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ACTS_RABIT
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain D； PDBConstruct 1–372； UniProt 3–374 Author chain E； PDBConstruct 1–372； UniProt 3–374 Author chain F； PDBConstruct 1–372； UniProt 3–374 Author chain G； PDBConstruct 1–372； UniProt 3–374 Author chain H； PDBConstruct 1–372； UniProt 3–374 Author chain I； PDBConstruct 1–372； UniProt 3–374 Author chain J； PDBConstruct 1–372； UniProt 3–374 Author chain K； PDBConstruct 1–372； UniProt 3–374 Author chain L； PDBConstruct 1–372； UniProt 3–374 Author chain M； PDBConstruct 1–372； UniProt 3–374 Author chain N； PDBConstruct 1–372； UniProt 3–374 Author chain O； PDBConstruct 1–372； UniProt 3–374 Author chain P； PDBConstruct 1–372； UniProt 3–374 Author chain Q； PDBConstruct 1–372； UniProt 3–374 Author chain R； PDBConstruct 1–372； UniProt 3–374 Author chain S； PDBConstruct 1–372； UniProt 3–374

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	2w49
Deposition date deposition_date	2008-11-24
Structure title title	ISOMETRICALLY CONTRACTING INSECT ASYNCHRONOUS FLIGHT MUSCLE
Keywords keywords	CONTRACTILE PROTEIN, ISOMETRIC CONTRACTION; CONTRACTILE PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

▼

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.

2w49__assembly_1__model_1

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

Download this curve (.dat)

2w49__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2w49__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	0.00 Å
Rg (electron density)	147.20 Å
Total Rg	146.90 Å
Atom count	69376
Residues	8776
Excluded volume	1233100 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2w49__assembly_1__model_1`	36-meric （36）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	TROPONIN C, SKELETAL MUSCLE
Molecular weight formula_weight	17971.8 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	0,3,6,9
Atom count atom_count	69376

TDQQAEARAFLSEEMIAEFKAAFDMFDADGGGDISTKELGTVMRMLGQNPTKEELDAIIEEVDEDGSGTIDFEEFLVMMVRQMKEDAKGKSEEELANCFRIFDKNADGFIDIEELGEILRATGEHVTEEDIEDLMKDSDKNNDGRIDFDEFLKMMEGVQ

Entity 2 Entity 2 polymer

Description description	TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS
Molecular weight formula_weight	10976.6 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	1,4,7,Y

SYSSYLAKADQKRGKKQTARETKKKVLAERRKPLNIDHLNEDKLRDKAKELWDWLYQLQTEKYDFAEQIKRKKYEIVTLRNRIDQAQKHS

Entity 3 Entity 3 polymer

Description description	TROPONIN I, FAST SKELETAL MUSCLE
Molecular weight formula_weight	16305.0 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	2,5,8,Z

EEKKRRAATARRQHLKSAMLQLAVTEIEKEAAAKEVEKQNYLAEHSPPLSLPGSMQELQELSKKLHAKIDSVDEERYDTEVKLQKTIKELEDLSQKLFDLRGKFKRPPLRRVRMSADAMLRALLGSKHKVNMDLRANLKQV

Entity 4 Entity 4 polymer

Description description	TROPOMYOSIN ALPHA-1 CHAIN
Molecular weight formula_weight	31917.6 kDa
Source method src_method	nat
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,T,U,V,W,X

MQMLKLDKENALDRAEQAEADKKAAEDRSKQLEDELVSLQKKLKGTEDELDKYSEALKDAQEKLELAEKKATDAEADVASLNRRIQLVEEELDRAQERLATALQKLEEAEKAADESERGMKVIESRAQKDEEKMEIQEIQLKEAKHIAEDADRKYEEVARKLVIIESDLERAEERAELSEGKCAELEEELKTVTNNLKSLEAQAEKYSQKEDKYEEEIKVLSDKLKEAETRAEFAERSVTKLEKSIDDLEDELYAQKLKYKAISEELDHALNDMTSI

Entity 5 Entity 5 polymer

Description description	ACTIN, ALPHA SKELETAL MUSCLE
Molecular weight formula_weight	41483.1 kDa
Source method src_method	nat
Copy count entity_count	16

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S

DEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHR

Entity 6 Entity 6 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	16

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	1

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

Resolution resolution	35.000 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	— Å
Resolution测定Method resolution_method	MARKER FREE ALIGNMENT
颗粒数 num_particles	—

ISOMETRICALLY CONTRACTING INSECT ASYNCHRONOUS FLIGHT MUSCLE

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

TROPONIN C, SKELETAL MUSCLE

State in the Current Structure

Other States of the Same Protein in the Database

TROPONIN T, FAST SKELETAL MUSCLE ISOFORMS

State in the Current Structure

Other States of the Same Protein in the Database

TROPONIN I, FAST SKELETAL MUSCLE

State in the Current Structure

Other States of the Same Protein in the Database

TROPOMYOSIN ALPHA-1 CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

ACTIN, ALPHA SKELETAL 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

2w49__assembly_1__model_1

2w49__assembly_1__model_1 | I(q)

2w49__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Entity 6 Entity 6 non-polymer

7. Citations (2)

ISOMETRICALLY CONTRACTING INSECT ASYNCHRONOUS FLIGHT MUSCLE

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

TROPONIN C, SKELETAL 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 T, FAST SKELETAL MUSCLE ISOFORMS

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, FAST SKELETAL 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

TROPOMYOSIN ALPHA-1 CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

ACTIN, ALPHA SKELETAL 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

2w49__assembly_1__model_1

2w49__assembly_1__model_1 | I(q)

2w49__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Entity 6 Entity 6 non-polymer

7. Citations (2)