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1iu2

The first PDZ domain of PSD-95

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

PSD-95

Rattus norvegicus

UniProt P31016

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1bfe 1iu0 1iu2 1jxm 1jxo 1jxo 1kjw 1qlc 1tq3 3gsl 3gsl 5hdy

22 assemblies; showing the first 12

Homodimer
2xkx

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1be9 1rgr 1tp3 1tp5 1tp5 2ka9 2mho 3wp0 3wp1 5d13 5d13 5d13

36 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name DLG4_RAT
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–91； UniProt 61–151

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_id1iu2
Deposition date deposition_date2002-02-19
Structure title titleThe first PDZ domain of PSD-95
Keywords keywordsPSD-95, PDZ domain, post synaptic density, NEUROPEPTIDE; NEUROPEPTIDE
Experimental Method methodSOLUTION NMR
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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.

1iu2__assembly_1__model_25

Assembly 1 · Model 25 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1iu2__assembly_1__model_25 | I(q)

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

1iu2__assembly_1__model_25 | 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）13.74 Å
Rg (electron density)11.94 Å
Total Rg13.34 Å
Atom count1379
Residues91
Excluded volume12194 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1iu2__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1iu2__assembly_1__model_2 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1iu2__assembly_1__model_3 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1iu2__assembly_1__model_4 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1iu2__assembly_1__model_5 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1iu2__assembly_1__model_6 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1iu2__assembly_1__model_7 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1iu2__assembly_1__model_8 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1iu2__assembly_1__model_9 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1iu2__assembly_1__model_10 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1iu2__assembly_1__model_11 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1iu2__assembly_1__model_12 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1iu2__assembly_1__model_13 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1iu2__assembly_1__model_14 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1iu2__assembly_1__model_15 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1iu2__assembly_1__model_16 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1iu2__assembly_1__model_17 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1iu2__assembly_1__model_18 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1iu2__assembly_1__model_19 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1iu2__assembly_1__model_20 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 21 1iu2__assembly_1__model_21 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 22 1iu2__assembly_1__model_22 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 23 1iu2__assembly_1__model_23 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 24 1iu2__assembly_1__model_24 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 25 1iu2__assembly_1__model_25 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 26 1iu2__assembly_1__model_26 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 27 1iu2__assembly_1__model_27 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 28 1iu2__assembly_1__model_28 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 29 1iu2__assembly_1__model_29 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 30 1iu2__assembly_1__model_30 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 31 1iu2__assembly_1__model_31 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 32 1iu2__assembly_1__model_32 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 33 1iu2__assembly_1__model_33 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 34 1iu2__assembly_1__model_34 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 35 1iu2__assembly_1__model_35 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 36 1iu2__assembly_1__model_36 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 37 1iu2__assembly_1__model_37 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 38 1iu2__assembly_1__model_38 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 39 1iu2__assembly_1__model_39 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 40 1iu2__assembly_1__model_40 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 41 1iu2__assembly_1__model_41 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 42 1iu2__assembly_1__model_42 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 43 1iu2__assembly_1__model_43 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 44 1iu2__assembly_1__model_44 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 45 1iu2__assembly_1__model_45 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 46 1iu2__assembly_1__model_46 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 47 1iu2__assembly_1__model_47 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 48 1iu2__assembly_1__model_48 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 49 1iu2__assembly_1__model_49 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 50 1iu2__assembly_1__model_50 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 (1)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1iu2a_
Class classb — All beta proteins
Fold Fold foldb.36 — PDZ domain-like
Superfamily Superfamily superfamilyb.36.1 — PDZ domain-like
Family Family familyb.36.1.1 — PDZ domain

CATH v4.4 (1 domains)

Domain ID domain_id1iu2A00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology42 — Pdz3 Domain
Homologous superfamily homologous superfamily10 — PDZ domain
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7. Citations (1)