1dlh

CRYSTAL STRUCTURE OF THE HUMAN CLASS II MHC PROTEIN HLA-DR1 COMPLEXED WITH AN INFLUENZA VIRUS PEPTIDE

Method: X-RAY DIFFRACTION Dmax: 85.4 Å Quality: EXCELLENT

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

CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (ALPHA CHAIN)

Homo sapiens

UniProt P01903

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 6 其他Polymer 2 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 28–207 Chain D; UniProt 28–207 Not recorded CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (BETA CHAIN) × 2 (P13758) ENTEROTOXIN TYPE B PRECURSOR × 2 (P11133) 2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.80 Å R-free 0.304

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.

139 other PDB entries and 219 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HA2R_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–180; UniProt 28–207 Author chain D; PDBConstruct 1–180; UniProt 28–207

CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (BETA CHAIN)

Homo sapiens

UniProt P13758

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 6 其他Polymer 2 PDB declaration: hexameric(6) Consistent with protein copy count Chain B; UniProt 32–219 Chain E; UniProt 32–219 Not recorded CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (ALPHA CHAIN) × 2 (P01903) ENTEROTOXIN TYPE B PRECURSOR × 2 (P11133) 2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.80 Å R-free 0.304

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.

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HB2F_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–188; UniProt 32–219 Author chain E; PDBConstruct 1–188; UniProt 32–219

ENTEROTOXIN TYPE B PRECURSOR

OrganismNot specified

UniProt P11133

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 6 其他Polymer 2 PDB declaration: hexameric(6) Consistent with protein copy count Chain C; UniProt 306–318 Chain F; UniProt 306–318 Not recorded CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (ALPHA CHAIN) × 2 (P01903) CLASS II HISTOCOMPATIBILITY ANTIGEN (HLA-DR1) (BETA CHAIN) × 2 (P13758) 2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.80 Å R-free 0.304

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.

1 other PDB entries and 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HEMA_IAZH2
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–13; UniProt 306–318 Author chain F; PDBConstruct 1–13; UniProt 306–318

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 1dlh

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1dlh
Deposition date deposition_date1994-02-15
Structure title titleCRYSTAL STRUCTURE OF THE HUMAN CLASS II MHC PROTEIN HLA-DR1 COMPLEXED WITH AN INFLUENZA VIRUS PEPTIDE
Keywords keywordsHISTOCOMPATIBILITY ANTIGEN; HISTOCOMPATIBILITY ANTIGEN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.99
Radius of gyration Rg (electron density) rg_electron27.84
Forward intensity I(0) i0130430000.00
Molecular weight molecular_weight90076.0 kDa
Excluded volume excluded_volume112690 ų
Envelope volume envelope_volume141370 ų
Hydration-shell volume shell_volume41000 ų
Envelope diameter envelope_diameter89.3
Shell Rg shell_rg36.37
Envelope Rg envelope_rg27.36
Shape Rg shape_rg27.83
Total Rg total_rg28.75
Total atoms total_atoms6367
Residues n_residues762
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 dmax85.4
Rg (real space) rg_real28.79
Rg uncertainty (real space) rg_real_error0.44
I(0) (real space) i0_real1.3040e+08
I(0) uncertainty (real space) i0_real_error1.5510e+06
Rg (reciprocal space) rg_reciprocal28.88
I(0) (reciprocal space) i0_reciprocal130400000.0000
Solution quality estimate total_estimate0.9115
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary37.3
Skewness Skewness skewness0.036
Kurtosis Kurtosis kurtosis-0.594
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16050000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.962; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.983

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd1dlha1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd1dlha2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain
Domain ID domain_idd1dlhb1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd1dlhb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain
Domain ID domain_idd1dlhd1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd1dlhd2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain
Domain ID domain_idd1dlhe1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd1dlhe2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain

CATH v4.4 (8 domains)

Domain ID domain_id1dlhA01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology320 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Homologous superfamily homologous superfamily10 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Domain ID domain_id1dlhA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1dlhB01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology320 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Homologous superfamily homologous superfamily10 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Domain ID domain_id1dlhB02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1dlhD01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology320 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Homologous superfamily homologous superfamily10 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Domain ID domain_id1dlhD02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1dlhE01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology320 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Homologous superfamily homologous superfamily10 — Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Domain ID domain_id1dlhE02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (2)

9. Files and Curves (10)