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4mbp

MALTODEXTRIN BINDING PROTEIN WITH BOUND MALTETROSE

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

MALTODEXTRIN BINDING PROTEIN

Escherichia coli

UniProt P02928

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Other combination Monomer Protein 1 其他Polymer 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1ezo 1ezp 1jw4 1lls 1mpb 1mpc 1n3x 1omp 1peb 1ziu 1zjl 1zkb

13 assemblies; showing the first 12

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1a7l 1a7l 1a7l 1a7l 1anf 1dmb 1ez9 1ez9 1fqa 1fqb 1fqc 1fqd

39 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MALE_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–370； UniProt 27–396

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_id4mbp
Deposition date deposition_date1997-08-17
Structure title titleMALTODEXTRIN BINDING PROTEIN WITH BOUND MALTETROSE
Keywords keywordsPERIPLASMIC BINDING PROTEIN, TRANSPORT, SUGAR TRANSPORT; PERIPLASMIC BINDING 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.

4mbp__assembly_1__model_1

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

Download this curve (.dat)

4mbp__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

4mbp__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）21.86 Å
Rg (electron density)20.76 Å
Total Rg21.75 Å
Atom count2917
Residues370
Excluded volume52229 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4mbp__assembly_1__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 (3)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd4mbpa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like

CATH v4.4 (2 domains)

Domain ID domain_id4mbpA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4mbpA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
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7. Citations (4)