1s6i

Ca2+-regulatory region (CLD) from soybean calcium-dependent protein kinase-alpha (CDPK) in the presence of Ca2+ and the junction domain (JD)

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Calcium-dependent protein kinase SK5

Glycine max

UniProt P28583

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 CALCIUM ION × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CDPK_SOYBN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–182; UniProt 329–508

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_id1s6i
Deposition date deposition_date2004-01-23
Structure title titleCa2+-regulatory region (CLD) from soybean calcium-dependent protein kinase-alpha (CDPK) in the presence of Ca2+ and the junction domain (JD)
Keywords keywordsEF-hand; helix-loop-helix; calcium-binding; calmodulin superfamily, TRANSFERASE, PLANT PROTEIN; TRANSFERASE, PLANT PROTEIN
Experimental Method methodSOLUTION 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.

1s6i__assembly_1__model_1

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

Download this curve (.dat)

1s6i__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1s6i__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)20.17 Å
Rg (electron density)19.36 Å
Total Rg20.22 Å
Atom count2821
Residues182
Excluded volume25344 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1s6i__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1s6i__assembly_1__model_2 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1s6i__assembly_1__model_3 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1s6i__assembly_1__model_4 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1s6i__assembly_1__model_5 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1s6i__assembly_1__model_6 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1s6i__assembly_1__model_7 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1s6i__assembly_1__model_8 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1s6i__assembly_1__model_9 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1s6i__assembly_1__model_10 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1s6i__assembly_1__model_11 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1s6i__assembly_1__model_12 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1s6i__assembly_1__model_13 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1s6i__assembly_1__model_14 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1s6i__assembly_1__model_15 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 (2)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1s6ia_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like

CATH v4.4 (2 domains)

Domain ID domain_id1s6iA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id1s6iA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
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7. Citations (4)