SAXSdb — 2j7i

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

CD2-ASSOCIATED PROTEIN

HOMO SAPIENS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	T-CELL SURFACE ANTIGEN CD2 × 1 （P06729） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	T-CELL SURFACE ANTIGEN CD2 × 1 （P06729） water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD2AP_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–62； UniProt 1–62 Author chain B； PDBConstruct 1–62； UniProt 1–62

T-CELL SURFACE ANTIGEN CD2

OrganismNot specified

UniProt P06729

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	CD2-ASSOCIATED PROTEIN × 1 （Q9Y5K6） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	CD2-ASSOCIATED PROTEIN × 1 （Q9Y5K6） water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–10； UniProt 324–333 Author chain D； PDBConstruct 1–10； UniProt 324–333

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_id	2j7i
Deposition date deposition_date	2006-10-09
Structure title title	ATYPICAL POLYPROLINE RECOGNITION BY THE CMS N-TERMINAL SH3 DOMAIN. CMS:CD2 HETERODIMER
Keywords keywords	;COILED COIL, POLYMORPHISM, GLYCOPROTEIN, CELL ADHESION, EGFR DOWNREGULATION, IMMUNOGLOBULIN DOMAIN, TRANSMEMBRANE, PHOSPHORYLATION, ADAPTOR PROTEIN, CMS, CD2AD, MEMBRANE, SH3 DOMAIN, SH3-BINDING, SH3 DOMAIN RECOGNITION, PROTEIN BINDING ;; PROTEIN BINDING
Experimental Method method	X-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.

2j7i__assembly_1__model_1

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

Download this curve (.dat)

2j7i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2j7i__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	12.49 Å
Rg (electron density)	11.06 Å
Total Rg	12.67 Å
Atom count	555
Residues	68
Excluded volume	9855 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2j7i__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2j7i__assembly_2__model_1`	dimeric （2）	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 (3)

Entity 1 Entity 1 polymer

Description description	CD2-ASSOCIATED PROTEIN
Molecular weight formula_weight	7412.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	1142

MVDYIVEYDYDAVHDDELTIRVGEIIRNVKKLQEEGWLEGELNGRRGMFPDNFVKEIKRETE

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	T-CELL SURFACE ANTIGEN CD2
Molecular weight formula_weight	1119.4 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,D

KGPPLPRPRV

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	31

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	2j7iA00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	40 — SH3 Domains

Domain ID domain_id	2j7iB00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	40 — SH3 Domains

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Unit-cell length a length_a	36.319 Å
Unit-cell length b length_b	59.719 Å
Unit-cell length c length_c	70.867 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	19.800 Å
R factor r_factor	0.2480
R_work r_work	0.2480
R_free r_free	0.2950

ATYPICAL POLYPROLINE RECOGNITION BY THE CMS N-TERMINAL SH3 DOMAIN. CMS:CD2 HETERODIMER

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

CD2-ASSOCIATED PROTEIN

State in the Current Structure

Other States of the Same Protein in the Database

T-CELL SURFACE ANTIGEN CD2

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2j7i__assembly_1__model_1

2j7i__assembly_1__model_1 | I(q)

2j7i__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

ATYPICAL POLYPROLINE RECOGNITION BY THE CMS N-TERMINAL SH3 DOMAIN. CMS:CD2 HETERODIMER

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

CD2-ASSOCIATED PROTEIN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

T-CELL SURFACE ANTIGEN CD2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2j7i__assembly_1__model_1

2j7i__assembly_1__model_1 | I(q)

2j7i__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)