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1br2

SMOOTH MUSCLE MYOSIN MOTOR DOMAIN COMPLEXED WITH MGADP.ALF4

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

MYOSIN

Gallus gallus

UniProt P10587

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count
2 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count
3 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count
4 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count
5 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count
6 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 TETRAFLUOROALUMINATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1br2 1br2 1br2 1br2 1br2 1br2 5m05

7 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1br1 1br1 1br1 1br1 1br4 1br4 1br4 1br4 1i84 3dtp 3dtp 3dtp

16 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MYH11_CHICK
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 2–791； UniProt 2–791 Author chain B； PDBConstruct 2–791； UniProt 2–791 Author chain C； PDBConstruct 2–791； UniProt 2–791 Author chain D； PDBConstruct 2–791； UniProt 2–791 Author chain E； PDBConstruct 2–791； UniProt 2–791 Author chain F； PDBConstruct 2–791； UniProt 2–791

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_id1br2
Deposition date deposition_date1998-08-26
Structure title titleSMOOTH MUSCLE MYOSIN MOTOR DOMAIN COMPLEXED WITH MGADP.ALF4
Keywords keywordsMUSCLE PROTEIN; MUSCLE PROTEIN
Experimental Method methodX-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.

1br2__assembly_1__model_1

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

Download this curve (.dat)

1br2__assembly_1__model_1 | I(q)

10-2 10-1 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1br2__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）28.26 Å
Rg (electron density)27.55 Å
Total Rg28.19 Å
Atom count5303
Residues673
Excluded volume94447 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1br2__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1br2__assembly_2__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1br2__assembly_3__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 1br2__assembly_4__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
5 1 1br2__assembly_5__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
6 1 1br2__assembly_6__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 (5)

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6. Fold Classification (SCOP + CATH) 36 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd1br2a1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2a2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins
Domain ID domain_idd1br2b1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2b2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins
Domain ID domain_idd1br2c1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2c2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins
Domain ID domain_idd1br2d1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2d2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins
Domain ID domain_idd1br2e1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2e2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins
Domain ID domain_idd1br2f1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain
Domain ID domain_idd1br2f2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.9 — Motor proteins

CATH v4.4 (24 domains)

Domain ID domain_id1br2A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2A03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2A04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
Domain ID domain_id1br2B01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2B02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2B03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2B04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
Domain ID domain_id1br2C01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2C02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2C03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2C04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
Domain ID domain_id1br2D01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2D02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2D03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2D04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
Domain ID domain_id1br2E01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2E02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2E03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2E04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
Domain ID domain_id1br2F01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1br2F02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820 —
Domain ID domain_id1br2F03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1br2F04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
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7. Citations (1)