SAXSdb — 1ygu

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

Leukocyte common antigen

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	Polyoma Middle T antigen × 1 （P03077）	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	Polyoma Middle T antigen × 1 （P03077）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD45_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–610； UniProt 622–1231 Author chain B； PDBConstruct 1–610； UniProt 622–1231

Polyoma Middle T antigen

OrganismNot specified

UniProt P03077

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Leukocyte common antigen × 1 （P08575）	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	Leukocyte common antigen × 1 （P08575）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TAMI_POVMA
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–4； UniProt 248–251 Author chain D； PDBConstruct 1–4； UniProt 248–251

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	1ygu
Deposition date deposition_date	2005-01-05
Structure title title	Crystal structure of the tandem phosphatase domains of RPTP CD45 with a pTyr peptide
Keywords keywords	CD45, protein tyrosine phosphatase, phosphotyrosine, polyoma middle T antigen, RPTP, HYDROLASE; HYDROLASE
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.

1ygu__assembly_1__model_1

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

Download this curve (.dat)

1ygu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ygu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.42 Å
Rg (electron density)	27.51 Å
Total Rg	28.12 Å
Atom count	4721
Residues	561
Excluded volume	84171 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ygu__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1ygu__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 (2)

Entity 1 Entity 1 polymer

Description description	Leukocyte common antigen
Molecular weight formula_weight	71500.6 kDa
EC 编号 ec_number	3.1.3.48
Mutation mutation	C828S
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	9529

EKQLMNVEPIHADILLETYKRKIADEGRPFLAEFQSIPRVFSKFPIKEARKPFNQNKNRYVDILPYDYNRVELSEINGDAGSNYINASYIDGFKEPRKYIAAQGPRDETVDDFWRMIWEQKATVIVMVTRCEEGNRNKCAEYWPSMEEGTRAFGDVVVKINQHKRCPDYIIQKLNIVNKKEKATGREVTHIQFTSWPDHGVPEDPHLLLKLRRRVNAFSNFFSGPIVVHSSAGVGRTGTYIGIDAMLEGLEAENKVDVYGYVVKLRRQRCLMVQVEAQYILIHQALVEYNQFGETEVNLSELHPYLHNMKKRDPPSEPSPLEAEFQRLPSYRSWRTQHIGNQEENKSKNRNSNVIPYDYNRVPLKHELEMSKESEHDSDESSDDDSDSEEPSKYINASFIMSYWKPEVMIAAQGPLKETIGDFWQMIFQRKVKVIVMLTELKHGDQEICAQYWGEGKQTYGDIEVDLKDTDKSSTYTLRVFELRHSKRKDSRTVYQYQYTNWSVEQLPAEPKELISMIQVVKQKLPQKNSSEGNKHHKSTPLLIHCRDGSQQTGIFCALLNLLESAETEEVVDIFQVVKALRKARLGMVSTFEQYQFLYDVIASTYPAQN

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 BL21

Entity 2 Entity 2 polymer

Description description	Polyoma Middle T antigen
Molecular weight formula_weight	546.5 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

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

PTYS

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	1yguA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

Domain ID domain_id	1yguA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

Domain ID domain_id	1yguB01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

Domain ID domain_id	1yguB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily	10 — Protein tyrosine phosphatase superfamily

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Unit-cell length a length_a	84.900 Å
Unit-cell length b length_b	57.920 Å
Unit-cell length c length_c	159.290 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	98.66 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	29.160 Å
R factor r_factor	0.2620
R_work r_work	0.2620
R_free r_free	0.3050

Crystal structure of the tandem phosphatase domains of RPTP CD45 with a pTyr peptide

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

Leukocyte common antigen

State in the Current Structure

Other States of the Same Protein in the Database

Polyoma Middle T antigen

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

1ygu__assembly_1__model_1

1ygu__assembly_1__model_1 | I(q)

1ygu__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of the tandem phosphatase domains of RPTP CD45 with a pTyr peptide

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

Leukocyte common antigen

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Polyoma Middle T antigen

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

1ygu__assembly_1__model_1

1ygu__assembly_1__model_1 | I(q)

1ygu__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)