SAXSdb — 2pj4

▼

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

Carboxypeptidase B

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	ZINC ION × 1 ;(5R,6R,8S)-8-(3-{[AMINO(IMINO)METHYL]AMINO}PHENYL)-5-CYCLOHEXYL-6-HYDROXY-3-OXO-1-PHENYL-2,7-DIOXA-4-AZA-6-PHOSPHANONAN-9-OIC ACID 6-OXIDE ; × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	ZINC ION × 1 ;(5R,6R,8S)-8-(3-{[AMINO(IMINO)METHYL]AMINO}PHENYL)-5-CYCLOHEXYL-6-HYDROXY-3-OXO-1-PHENYL-2,7-DIOXA-4-AZA-6-PHOSPHANONAN-9-OIC ACID 6-OXIDE ; × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CBPB1_PIG
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–306； UniProt 111–416 Author chain B； PDBConstruct 1–306； UniProt 111–416

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	2pj4
Deposition date deposition_date	2007-04-15
Structure title title	CRYSTAL STRUCTURE OF ACTIVATED PORCINE PANCREATIC CARBOXYPEPTIDASE B [((R)-Benzyloxycarbonylamino-cyclohexyl-methyl)-hydroxy-phosphinoyloxy]-(3-guanidino-phenyl)-acetic acid COMPLEX
Keywords keywords	CARBOXYPEPTIDASE B, EXOPEPTIDASE, Phosphinate BASED INHIBITOR, HYDROLASE; HYDROLASE
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.

2pj4__assembly_1__model_1

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

Download this curve (.dat)

2pj4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2pj4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.03 Å
Rg (electron density)	17.91 Å
Total Rg	18.89 Å
Atom count	2473
Residues	304
Excluded volume	43822 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2pj4__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2pj4__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Carboxypeptidase B
Molecular weight formula_weight	34739.9 kDa
EC 编号 ec_number	3.4.17.2
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	5237

TTGHSYEKYNNWETIEAWTKQVTSENPDLISRTAIGTTFLGNNIYLLKVGKPGPNKPAIFMDCGFHAREWISHAFCQWFVREAVLTYGYESHMTEFLNKLDFYVLPVLNIDGYIYTWTKNRMWRKTRSTNAGTTCIGTDPNRNFDAGWCTTGASTDPCDETYCGSAAESEKETKALADFIRNNLSSIKAYLTIHSYSQMILYPYSYDYKLPENNAELNNLAKAAVKELATLYGTKYTYGPGATTIYPAAGGSDDWAYDQGIKYSFTFELRDKGRYGFILPESQIQATCEETMLAIKYVTNYVLGHL

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	;(5R,6R,8S)-8-(3-{[AMINO(IMINO)METHYL]AMINO}PHENYL)-5-CYCLOHEXYL-6-HYDROXY-3-OXO-1-PHENYL-2,7-DIOXA-4-AZA-6-PHOSPHANONAN-9-OIC ACID 6-OXIDE ;
Molecular weight formula_weight	518.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	291

▼

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2pj4a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.56 — Phosphorylase/hydrolase-like
Superfamily Superfamily superfamily	c.56.5 — Zn-dependent exopeptidases
Family Family family	c.56.5.1 — Pancreatic carboxypeptidases

Domain ID domain_id	d2pj4b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.56 — Phosphorylase/hydrolase-like
Superfamily Superfamily superfamily	c.56.5 — Zn-dependent exopeptidases
Family Family family	c.56.5.1 — Pancreatic carboxypeptidases

CATH v4.4 (2 domains)

Domain ID domain_id	2pj4A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	630 — Aminopeptidase
Homologous superfamily homologous superfamily	10 — Zn peptidases

Domain ID domain_id	2pj4B00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	630 — Aminopeptidase
Homologous superfamily homologous superfamily	10 — Zn peptidases

▶

Unit-cell length a length_a	90.069 Å
Unit-cell length b length_b	90.069 Å
Unit-cell length c length_c	173.666 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	16

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	23.920 Å
R factor r_factor	0.2170
R_work r_work	0.2150
R_free r_free	0.2650

CRYSTAL STRUCTURE OF ACTIVATED PORCINE PANCREATIC CARBOXYPEPTIDASE B [((R)-Benzyloxycarbonylamino-cyclohexyl-methyl)-hydroxy-phosphinoyloxy]-(3-guanidino-phenyl)-acetic acid COMPLEX

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

Carboxypeptidase B

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

2pj4__assembly_1__model_1

2pj4__assembly_1__model_1 | I(q)

2pj4__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

CRYSTAL STRUCTURE OF ACTIVATED PORCINE PANCREATIC CARBOXYPEPTIDASE B [((R)-Benzyloxycarbonylamino-cyclohexyl-methyl)-hydroxy-phosphinoyloxy]-(3-guanidino-phenyl)-acetic acid COMPLEX

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

Carboxypeptidase B

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

2pj4__assembly_1__model_1

2pj4__assembly_1__model_1 | I(q)

2pj4__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)