SAXSdb — 1w61

▼

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

B-CELL MITOGEN

TRYPANOSOMA CRUZI

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	PYRROLE-2-CARBOXYLATE × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9NCP4
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–393； UniProt 32–423 Author chain B； PDBConstruct 2–393； UniProt 32–423

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1w61
Deposition date deposition_date	2004-08-11
Structure title title	proline racemase in complex with 2 molecules of pyrrole-2-carboxylic acid (holo form)
Keywords keywords	;RACEMASE, RACEMASE PYRIDOXAL PHOSPHATE-INDEPENDENT, STEREO INVERSION, B-CELL MITOGEN, ACID/BASE CATALYSIS, HOMODIMER, ALPHA/BETA DOMAINS ;; RACEMASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

1w61__assembly_1__model_1

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

Download this curve (.dat)

1w61__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1w61__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.76 Å
Rg (electron density)	27.19 Å
Total Rg	27.89 Å
Atom count	5390
Residues	710
Excluded volume	96036 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1w61__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	B-CELL MITOGEN
Molecular weight formula_weight	45796.2 kDa
EC 编号 ec_number	5.1.1.4
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	5748

MGQEKLLFDQKYKIIKGEKKEKKKNQRANRREHQQKREIMRFKKSFTCIDMHTEGEAARIVTSGLPHIPGSNMAEKKAYLQENMDYLRRGIMLEPRGHDDMFGAFLFDPIEEGADLGIVFMDTGGYLNMCGHNSIAAVTAAVETGIVSVPAKATNVPVVLDTPAGLVRGTAHLQSGTESEVSNASIINVPSFLYQQDVVVVLPKPYGEVRVDIAFGGNFFAIVPAEQLGIDISVQNLSRLQEAGELLRTEINRSVKVQHPQLPHINTVDCVEIYGPPTNPEANYKNVVIFGNRQADRSPCGTGTSAKMATLYAKGQLRIGETFVYESILGSLFQGRVLGEERIPGVKVPVTKDAEEGMLVVTAEITGKAFIMGFNTMLFDPTDPFKNGFTLKQYIWSSSVDKLAAALEHHHHHH

Source Source

Source organism organism	TRYPANOSOMA CRUZI
NCBI taxonomy ID ncbi_taxonomy_id	5693
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	PYRROLE-2-CARBOXYLATE
Molecular weight formula_weight	110.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	358

▼

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1w61a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.21 — Diaminopimelate epimerase-like
Superfamily Superfamily superfamily	d.21.1 — Diaminopimelate epimerase-like
Family Family family	d.21.1.0 — automated matches

Domain ID domain_id	d1w61a2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1w61b1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.21 — Diaminopimelate epimerase-like
Superfamily Superfamily superfamily	d.21.1 — Diaminopimelate epimerase-like
Family Family family	d.21.1.0 — automated matches

Domain ID domain_id	d1w61b2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id	1w61A01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	310 — Diaminopimelate Epimerase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Diaminopimelate Epimerase; Chain A, domain 1

Domain ID domain_id	1w61A02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	310 — Diaminopimelate Epimerase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Diaminopimelate Epimerase; Chain A, domain 1

Domain ID domain_id	1w61B01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	310 — Diaminopimelate Epimerase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Diaminopimelate Epimerase; Chain A, domain 1

Domain ID domain_id	1w61B02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	310 — Diaminopimelate Epimerase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Diaminopimelate Epimerase; Chain A, domain 1

▶

Unit-cell length a length_a	131.153 Å
Unit-cell length b length_b	91.209 Å
Unit-cell length c length_c	85.983 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	126.52 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.1500
R_work r_work	0.1480
R_free r_free	0.1930

proline racemase in complex with 2 molecules of pyrrole-2-carboxylic acid (holo form)

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

B-CELL MITOGEN

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

1w61__assembly_1__model_1

1w61__assembly_1__model_1 | I(q)

1w61__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

proline racemase in complex with 2 molecules of pyrrole-2-carboxylic acid (holo form)

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

B-CELL MITOGEN

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

1w61__assembly_1__model_1

1w61__assembly_1__model_1 | I(q)

1w61__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 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)