1smf

Studies on an artificial trypsin inhibitor peptide derived from the mung bean inhibitor

Method: X-RAY DIFFRACTION Dmax: 52.2 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

TRYPSIN

Bos taurus

UniProt P00760

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 21–243 Not recorded BOWMAN-BIRK TYPE TRYPSIN INHIBITOR × 1 (P01062) CA CALCIUM ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

608 other PDB entries and 770 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRY1_BOVIN
Isoform
PDB entities 1
Chains and sequence ranges Author chain E; PDBConstruct 1–223; UniProt 21–243

BOWMAN-BIRK TYPE TRYPSIN INHIBITOR

OrganismNot specified

UniProt P01062

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain I; UniProt 10–31 Not recorded TRYPSIN × 1 (P00760) CA CALCIUM ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.10 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

3 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IBB_VIGRR
Isoform
PDB entities 2
Chains and sequence ranges Author chain I; PDBConstruct 1–22; UniProt 10–31

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.

SAXS scattering curve SAXS Profile

SAXS profile for 1smf

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1smf
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1smf
Deposition date deposition_date1992-10-24
Structure title titleStudies on an artificial trypsin inhibitor peptide derived from the mung bean inhibitor
Keywords keywordsPROTEINASE, HYDROLASE-HYDROLASE INHIBITOR complex; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier17.15
Radius of gyration Rg (electron density) rg_electron16.02
Forward intensity I(0) i011327500.00
Molecular weight molecular_weight24312.0 kDa
Excluded volume excluded_volume30076 ų
Envelope volume envelope_volume32846 ų
Hydration-shell volume shell_volume16827 ų
Envelope diameter envelope_diameter51.5
Shell Rg shell_rg22.47
Envelope Rg envelope_rg16.27
Shape Rg shape_rg16.01
Total Rg total_rg17.04
Total atoms total_atoms2091
Residues n_residues229
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax52.2
Rg (real space) rg_real17.02
Rg uncertainty (real space) rg_real_error0.29
I(0) (real space) i0_real1.1330e+07
I(0) uncertainty (real space) i0_real_error1.3640e+05
Rg (reciprocal space) rg_reciprocal17.04
I(0) (reciprocal space) i0_reciprocal11330000.0000
Solution quality estimate total_estimate0.8959
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary22.7
Skewness Skewness skewness0.115
Kurtosis Kurtosis kurtosis-0.443
Angular range angular_range— – 0.4650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3462000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.911; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.929

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1smfe_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.2 — Eukaryotic proteases
Domain ID domain_idd1smfi_
Class classj — Peptides
Fold Fold foldj.38 — Fragments of bowman-birk inhibitor
Superfamily Superfamily superfamilyj.38.1 — Fragments of bowman-birk inhibitor
Family Family familyj.38.1.1 — Fragments of bowman-birk inhibitor

CATH v4.4 (2 domains)

Domain ID domain_id1smfE01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1smfE02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (1)

9. Files and Curves (10)