SAXSdb — 8xou

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

Portal protein B

Escherichia phage Lambda

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 42	Major capsid protein × 30 （P03713）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PORTL_LAMBD
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain B； PDBConstruct 1–533； UniProt 1–533 Author chain B1； PDBConstruct 1–533； UniProt 1–533 Author chain B2； PDBConstruct 1–533； UniProt 1–533 Author chain B3； PDBConstruct 1–533； UniProt 1–533 Author chain B4； PDBConstruct 1–533； UniProt 1–533 Author chain B5； PDBConstruct 1–533； UniProt 1–533 Author chain b； PDBConstruct 1–533； UniProt 1–533 Author chain b1； PDBConstruct 1–533； UniProt 1–533 Author chain b2； PDBConstruct 1–533； UniProt 1–533 Author chain b3； PDBConstruct 1–533； UniProt 1–533 Author chain b4； PDBConstruct 1–533； UniProt 1–533 Author chain b5； PDBConstruct 1–533； UniProt 1–533

Major capsid protein

Escherichia phage Lambda

UniProt P03713

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 42	Portal protein B × 12 （P03710）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CAPSD_LAMBD
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A0； PDBConstruct 1–341； UniProt 1–341 Author chain A1； PDBConstruct 1–341； UniProt 1–341 Author chain A2； PDBConstruct 1–341； UniProt 1–341 Author chain A3； PDBConstruct 1–341； UniProt 1–341 Author chain A4； PDBConstruct 1–341； UniProt 1–341 Author chain C0； PDBConstruct 1–341； UniProt 1–341 Author chain C1； PDBConstruct 1–341； UniProt 1–341 Author chain C2； PDBConstruct 1–341； UniProt 1–341 Author chain C3； PDBConstruct 1–341； UniProt 1–341 Author chain C4； PDBConstruct 1–341； UniProt 1–341 Author chain D0； PDBConstruct 1–341； UniProt 1–341 Author chain D1； PDBConstruct 1–341； UniProt 1–341 Author chain D2； PDBConstruct 1–341； UniProt 1–341 Author chain D3； PDBConstruct 1–341； UniProt 1–341 Author chain D4； PDBConstruct 1–341； UniProt 1–341 Author chain E0； PDBConstruct 1–341； UniProt 1–341 Author chain E1； PDBConstruct 1–341； UniProt 1–341 Author chain E2； PDBConstruct 1–341； UniProt 1–341 Author chain E3； PDBConstruct 1–341； UniProt 1–341 Author chain E4； PDBConstruct 1–341； UniProt 1–341 Author chain F0； PDBConstruct 1–341； UniProt 1–341 Author chain F1； PDBConstruct 1–341； UniProt 1–341 Author chain F2； PDBConstruct 1–341； UniProt 1–341 Author chain F3； PDBConstruct 1–341； UniProt 1–341 Author chain F4； PDBConstruct 1–341； UniProt 1–341 Author chain G0； PDBConstruct 1–341； UniProt 1–341 Author chain G1； PDBConstruct 1–341； UniProt 1–341 Author chain G2； PDBConstruct 1–341； UniProt 1–341 Author chain G3； PDBConstruct 1–341； UniProt 1–341 Author chain G4； PDBConstruct 1–341； UniProt 1–341

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	8xou
Deposition date deposition_date	2024-01-02
Structure title title	Prohead portal vertex of bacteriophage lambda
Keywords keywords	;caudovirales, siphoviridae, portal vertex, portal, capsid, connector/neck, tail, delivery device, B-DNA, phage lambda, VIRAL PROTEIN ;; VIRAL PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

8xou__assembly_1__model_1

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

Download this curve (.dat)

8xou__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8xou__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	91.90 Å
Rg (electron density)	92.18 Å
Total Rg	92.21 Å
Atom count	123582
Residues	15738
Excluded volume	2182700 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8xou__assembly_1__model_1`	42-meric （42）	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	Portal protein B
Molecular weight formula_weight	59529.6 kDa
Source method src_method	man
Copy count entity_count	12

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,b,B1,b1,B2,b2,B3,b3,B4,b4,B5,b5
Atom count atom_count	123582

MKTPTIPTLLGPDGMTSLREYAGYHGGGSGFGGQLRSWNPPSESVDAALLPNFTRGNARADDLVRNNGYAANAIQLHQDHIVGSFFRLSHRPSWRYLGIGEEEARAFSREVEAAWKEFAEDDCCCIDVERKRTFTMMIREGVAMHAFNGELFVQATWDTSSSRLFRTQFRMVSPKRISNPNNTGDSRNCRAGVQINDSGAALGYYVSEDGYPGWMPQKWTWIPRELPGGRASFIHVFEPVEDGQTRGANVFYSVMEQMKMLDTLQNTQLQSAIVKAMYAATIESELDTQSAMDFILGANSQEQRERLTGWIGEIAAYYAAAPVRLGGAKVPHLMPGDSLNLQTAQDTDNGYSVFEQSLLRYIAAGLGVSYEQLSRNYAQMSYSTARASANESWAYFMGRRKFVASRQASQMFLCWLEEAIVRRVVTLPSKARFSFQEARSAWGNCDWIGSGRMAIDGLKEVQEAVMLIEAGLSTYEKECAKRGDDYQEIFAQQVRETMERRAAGLKPPAWAAAAFESGLRQSTEEEKSDSRAA

Source Source

Source organism organism	Escherichia phage Lambda
NCBI taxonomy ID ncbi_taxonomy_id	2681611
Host organism host_organism	Escherichia phage Lambda

Entity 2 Entity 2 polymer

Description description	Major capsid protein
Molecular weight formula_weight	38229.2 kDa
Source method src_method	man
Copy count entity_count	30

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A0,G0,C0,D0,E0,F0,A1,G1,C1,D1,E1,F1,A2,G2,C2,D2,E2,F2,A3,G3,C3,D3,E3,F3,A4,G4,C4,D4,E4,F4

MSMYTTAQLLAANEQKFKFDPLFLRLFFRESYPFTTEKVYLSQIPGLVNMALYVSPIVSGEVIRSRGGSTSEFTPGYVKPKHEVNPQMTLRRLPDEDPQNLADPAYRRRRIIMQNMRDEELAIAQVEEMQAVSAVLKGKYTMTGEAFDPVEVDMGRSEENNITQSGGTEWSKRDKSTYDPTDDIEAYALNASGVVNIIVFDPKGWALFRSFKAVKEKLDTRRGSNSELETAVKDLGKAVSYKGMYGDVAIVVYSGQYVENGVKKNFLPDNTMVLGNTQARGLRTYGCIQDADAQREGINASARYPKNWVTTGDPAREFTMIQSAPLMLLADPDEFVSVQLA

Source Source

Source organism organism	Escherichia phage Lambda
NCBI taxonomy ID ncbi_taxonomy_id	2681611
Host organism host_organism	Escherichia phage Lambda

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	5.58 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	50921

Prohead portal vertex of bacteriophage lambda

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

Portal protein B

State in the Current Structure

Other States of the Same Protein in the Database

Major capsid protein

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

8xou__assembly_1__model_1

8xou__assembly_1__model_1 | I(q)

8xou__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

7. Citations (1)

Prohead portal vertex of bacteriophage lambda

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

Portal protein 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

Major capsid 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

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8xou__assembly_1__model_1

8xou__assembly_1__model_1 | I(q)

8xou__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

7. Citations (1)