2kf3

Barnase, low pressure reference NMR structure

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

Ribonuclease

Bacillus amyloliquefaciens

UniProt P00648

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 RNBR_BACAM
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–110; UniProt 48–157

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_id2kf3
Deposition date deposition_date2009-02-11
Structure title titleBarnase, low pressure reference NMR structure
Keywords keywordsbarnase, ribonuclease, pressure, Endonuclease, Hydrolase, Nuclease, Secreted; HYDROLASE
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.

2kf3__assembly_1__model_4

Assembly 1 · Model 4 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2kf3__assembly_1__model_4 | I(q)

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

2kf3__assembly_1__model_4 | 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)14.50 Å
Rg (electron density)13.37 Å
Total Rg14.60 Å
Atom count1691
Residues108
Excluded volume15143 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2kf3__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 2kf3__assembly_1__model_2 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 2kf3__assembly_1__model_3 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 2kf3__assembly_1__model_4 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 2kf3__assembly_1__model_5 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 2kf3__assembly_1__model_6 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 2kf3__assembly_1__model_7 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 2kf3__assembly_1__model_8 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 2kf3__assembly_1__model_9 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 2kf3__assembly_1__model_10 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) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2kf3a_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.1 — Microbial ribonucleases
Superfamily Superfamily superfamilyd.1.1 — Microbial ribonucleases
Family Family familyd.1.1.2 — Bacterial ribonucleases

CATH v4.4 (1 domains)

Domain ID domain_id2kf3A00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily30 — Microbial ribonucleases
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7. Citations (1)