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1jfh

STRUCTURE OF A PANCREATIC ALPHA-AMYLASE BOUND TO A SUBSTRATE ANALOGUE AT 2.03 ANGSTROM RESOLUTION

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

ALPHA-AMYLASE

OrganismNot specified

UniProt P00690

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 3 4-S-methyl-4-thio-alpha-D-glucopyranose-(1-4)-methyl 4-thio-alpha-D-glucopyranoside × 1 alpha-D-glucopyranose-(1-4)-1,4-dithio-alpha-D-glucopyranose × 2 CHLORIDE ION × 1 MERCURY (II) ION × 1 CALCIUM ION × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1pif 1vah

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1bvn 1dhk 1hx0 1jfh 1kxq 1kxq 1kxq 1kxq 1kxt 1kxt 1kxt 1kxv

21 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name AMYP_PIG
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 2–496； UniProt 2–496

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_id1jfh
Deposition date deposition_date1997-09-19
Structure title titleSTRUCTURE OF A PANCREATIC ALPHA-AMYLASE BOUND TO A SUBSTRATE ANALOGUE AT 2.03 ANGSTROM RESOLUTION
Keywords keywords;HYDROLASE, O-GLYCOSYL, ALPHA-AMYLASE, METHYL 4, 4'-DITHIO-ALPHA-MALTOTRIOSIDE ;; HYDROLASE
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.

1jfh__assembly_1__model_1

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

Download this curve (.dat)

1jfh__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.

1jfh__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）23.96 Å
Rg (electron density)22.84 Å
Total Rg23.72 Å
Atom count3982
Residues495
Excluded volume69985 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1jfh__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 (7)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1jfha1
Class classb — All beta proteins
Fold Fold foldb.71 — Glycosyl hydrolase domain
Superfamily Superfamily superfamilyb.71.1 — Glycosyl hydrolase domain
Family Family familyb.71.1.1 — alpha-Amylases, C-terminal beta-sheet domain
Domain ID domain_idd1jfha2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.8 — (Trans)glycosidases
Family Family familyc.1.8.1 — Amylase, catalytic domain

CATH v4.4 (2 domains)

Domain ID domain_id1jfhA01
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily80 — Glycosidases
Domain ID domain_id1jfhA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily1180 — Golgi alpha-mannosidase II
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7. Citations (5)