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1a2y

HEN EGG WHITE LYSOZYME, D18A MUTANT, IN COMPLEX WITH MOUSE MONOCLONAL ANTIBODY D1.3

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

IGG1-KAPPA D1.3 FV (LIGHT CHAIN)

Mus musculus

UniProt P01635

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 IGG1-KAPPA D1.3 FV (HEAVY CHAIN) × 1 （P01820） LYSOZYME × 1 （P00698） PHOSPHATE ION × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1a2y 1a7n 1a7o 1a7p 1a7r 1dvf 1dvf 1qbl

8 assemblies

View Construct and Data Evidence
UniProt name KV5C_MOUSE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–107； UniProt 1–108

IGG1-KAPPA D1.3 FV (HEAVY CHAIN)

Mus musculus

UniProt P01820

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 IGG1-KAPPA D1.3 FV (LIGHT CHAIN) × 1 （P01635） LYSOZYME × 1 （P00698） PHOSPHATE ION × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1a2y 1a7n 1a7o 1a7p 1a7r 1dvf 1dvf 1g7h 1g7i 1g7j 1g7l 1g7m

22 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name HV44_MOUSE
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–96； UniProt 20–115

LYSOZYME

Gallus gallus

UniProt P00698

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 IGG1-KAPPA D1.3 FV (LIGHT CHAIN) × 1 （P01635） IGG1-KAPPA D1.3 FV (HEAVY CHAIN) × 1 （P01820） PHOSPHATE ION × 1 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
132l 193l 194l 1aki 1azf 1b0d 1b2k 1b2k 1bgi 1bhz 1bvx 1bwh

1212 assemblies; showing the first 12

Homodimer
2hu1 2hu3 3p66 3tmu 3tmv 3tmw 3tmx 3wu7 3wu8 3wu9 3wua 3zvq

23 assemblies; showing the first 12

Homotetramer
4phi

1 assemblies

Other homooligomers
9j0l 9j0m

2 assemblies

Heteromeric or nucleic-acid complex
1a2y 1at5 1at6 1bvk 1bvk 1c08 1dqj 1f3j 1fdl 1g7h 1g7i 1g7j

213 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name LYSC_CHICK
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–129； UniProt 19–147

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_id1a2y
Deposition date deposition_date1998-01-13
Structure title titleHEN EGG WHITE LYSOZYME, D18A MUTANT, IN COMPLEX WITH MOUSE MONOCLONAL ANTIBODY D1.3
Keywords keywords;COMPLEX (IMMUNOGLOBULIN-HYDROLASE), IMMUNOGLOBULIN V REGION, HYDROLASE, GLYCOSIDASE, BACTERIOLYTIC ENZYME, EGG WHITE, COMPLEX (IMMUNOGLOBULIN-HYDROLASE) complex ;; COMPLEX (IMMUNOGLOBULIN/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.

1a2y__assembly_1__model_1

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

Download this curve (.dat)

1a2y__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.

1a2y__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）23.59 Å
Rg (electron density)22.76 Å
Total Rg23.65 Å
Atom count2733
Residues352
Excluded volume47938 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1a2y__assembly_1__model_1 trimeric （3） 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 (5)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1a2ya_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd1a2yb_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd1a2yc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.2 — Lysozyme-like
Superfamily Superfamily superfamilyd.2.1 — Lysozyme-like
Family Family familyd.2.1.2 — C-type lysozyme

CATH v4.4 (3 domains)

Domain ID domain_id1a2yA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1a2yB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1a2yC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology530 — Lysozyme
Homologous superfamily homologous superfamily10 —
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7. Citations (4)