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7z4w

gp6/gp15/gp16 connector complex of bacteriophage SPP1

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Portal protein

OrganismNot specified

UniProt P54309

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 30 Head completion protein gp15 × 12 （Q38584） Head completion protein gp16 × 6 （O48446） water × 30 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2jes 5a20 5a21 7z4w

4 assemblies

View Construct and Data Evidence
UniProt name PORTL_BPSPP
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–503； UniProt 1–503 Author chain B； PDBConstruct 1–503； UniProt 1–503 Author chain C； PDBConstruct 1–503； UniProt 1–503 Author chain D； PDBConstruct 1–503； UniProt 1–503 Author chain E； PDBConstruct 1–503； UniProt 1–503 Author chain F； PDBConstruct 1–503； UniProt 1–503 Author chain G； PDBConstruct 1–503； UniProt 1–503 Author chain H； PDBConstruct 1–503； UniProt 1–503 Author chain I； PDBConstruct 1–503； UniProt 1–503 Author chain J； PDBConstruct 1–503； UniProt 1–503 Author chain K； PDBConstruct 1–503； UniProt 1–503 Author chain L； PDBConstruct 1–503； UniProt 1–503

Head completion protein gp15

OrganismNot specified

UniProt Q38584

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 30 Portal protein × 12 （P54309） Head completion protein gp16 × 6 （O48446） water × 30 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2kbz

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
5a20 5a21 7z4w

3 assemblies

View Construct and Data Evidence
UniProt name HCP15_BPSPP
Isoform —
PDB entities 2
Chains and sequence ranges Author chain a； PDBConstruct 1–102； UniProt 1–102 Author chain b； PDBConstruct 1–102； UniProt 1–102 Author chain c； PDBConstruct 1–102； UniProt 1–102 Author chain d； PDBConstruct 1–102； UniProt 1–102 Author chain e； PDBConstruct 1–102； UniProt 1–102 Author chain f； PDBConstruct 1–102； UniProt 1–102 Author chain g； PDBConstruct 1–102； UniProt 1–102 Author chain h； PDBConstruct 1–102； UniProt 1–102 Author chain i； PDBConstruct 1–102； UniProt 1–102 Author chain j； PDBConstruct 1–102； UniProt 1–102 Author chain k； PDBConstruct 1–102； UniProt 1–102 Author chain l； PDBConstruct 1–102； UniProt 1–102

Head completion protein gp16

OrganismNot specified

UniProt O48446

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 30 Portal protein × 12 （P54309） Head completion protein gp15 × 12 （Q38584） water × 30 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2kca

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
5a20 5a21 7z4w

3 assemblies

View Construct and Data Evidence
UniProt name HCP16_BPSPP
Isoform —
PDB entities 3
Chains and sequence ranges Author chain 1； PDBConstruct 1–109； UniProt 1–109 Author chain 2； PDBConstruct 1–109； UniProt 1–109 Author chain 3； PDBConstruct 1–109； UniProt 1–109 Author chain 4； PDBConstruct 1–109； UniProt 1–109 Author chain 5； PDBConstruct 1–109； UniProt 1–109 Author chain 6； PDBConstruct 1–109； UniProt 1–109

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_id7z4w
Deposition date deposition_date2022-03-05
Structure title titlegp6/gp15/gp16 connector complex of bacteriophage SPP1
Keywords keywordsBacteriophage, SPP1, Portal Protein, Head completion proteins, Connector Complex, DNA Channel, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON 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.

7z4w__assembly_1__model_1

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

Download this curve (.dat)

7z4w__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7z4w__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）65.97 Å
Rg (electron density)65.38 Å
Total Rg65.40 Å
Atom count58536
Residues7242
Excluded volume1035700 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7z4w__assembly_1__model_1 30-meric （30） 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 (4)

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6. Fold Classification (SCOP + CATH) 18 domains

CATH v4.4 (18 domains)

Domain ID domain_id7z4w101
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4w201
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4w301
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4w401
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4w501
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4w601
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily270 — Bacteriophage SPP1 head-tail adaptor protein
Domain ID domain_id7z4wa01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wb01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wc01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wd01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4we01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wf01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wg01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wh01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wi01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wj01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wk01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
Domain ID domain_id7z4wl01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily150 —
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7. Citations (1)