9xqs

Structure of the inner peripheral region in the phage phiKZ baseplate complex

Method: ELECTRON MICROSCOPY

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

PHIKZ087

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD75_BPDPK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–971； UniProt 1–971 Author chain B； PDBConstruct 1–971； UniProt 1–971 Author chain U； PDBConstruct 1–971； UniProt 1–971 Author chain V； PDBConstruct 1–971； UniProt 1–971

PHIKZ128

OrganismNot specified

UniProt Q8SD34

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD34_BPDPK
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–724； UniProt 1–724 Author chain D； PDBConstruct 1–724； UniProt 1–724

PHIKZ161

OrganismNot specified

UniProt Q8SD01

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD01_BPDPK
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain E； PDBConstruct 1–203； UniProt 1–203 Author chain F； PDBConstruct 1–203； UniProt 1–203 Author chain G； PDBConstruct 1–203； UniProt 1–203 Author chain H； PDBConstruct 1–203； UniProt 1–203

PHIKZ088

OrganismNot specified

UniProt Q8SD74

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD74_BPDPK
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain I； PDBConstruct 1–349； UniProt 1–349 Author chain J； PDBConstruct 1–349； UniProt 1–349

PHIKZ182

OrganismNot specified

UniProt Q8SCY0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SCY0_BPDPK
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain K； PDBConstruct 1–664； UniProt 1–664 Author chain L； PDBConstruct 1–664； UniProt 1–664

PHIKZ049

OrganismNot specified

UniProt Q8SDB3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ029 × 12 （Q8SDD3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SDB3_BPDPK
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain M； PDBConstruct 1–138； UniProt 1–138 Author chain N； PDBConstruct 1–138； UniProt 1–138 Author chain O； PDBConstruct 1–138； UniProt 1–138 Author chain P； PDBConstruct 1–138； UniProt 1–138 Author chain Q； PDBConstruct 1–138； UniProt 1–138 Author chain R； PDBConstruct 1–138； UniProt 1–138 Author chain S； PDBConstruct 1–138； UniProt 1–138 Author chain T； PDBConstruct 1–138； UniProt 1–138

PHIKZ029

OrganismNot specified

UniProt Q8SDD3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ062 × 6 （Q8SDA0）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SDD3_BPDPK
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain W； PDBConstruct 1–695； UniProt 1–695 Author chain X； PDBConstruct 1–695； UniProt 1–695 Author chain Y； PDBConstruct 1–695； UniProt 1–695 Author chain Z； PDBConstruct 1–695； UniProt 1–695

PHIKZ062

OrganismNot specified

UniProt Q8SDA0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 84	PHIKZ087 × 12 （Q8SD75） PHIKZ128 × 6 （Q8SD34） PHIKZ161 × 12 （Q8SD01） PHIKZ088 × 6 （Q8SD74） PHIKZ182 × 6 （Q8SCY0） PHIKZ049 × 24 （Q8SDB3） PHIKZ029 × 12 （Q8SDD3）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SDA0_BPDPK
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain a； PDBConstruct 1–136； UniProt 1–136 Author chain b； PDBConstruct 1–136； UniProt 1–136

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	9xqs
Deposition date deposition_date	2025-11-18
Structure title title	Structure of the inner peripheral region in the phage phiKZ baseplate complex
Keywords keywords	baseplate, inner peripheral, 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.

9xqs__assembly_1__model_1

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

Download this curve (.dat)

9xqs__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9xqs__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	0.00 Å
Rg (electron density)	114.00 Å
Total Rg	114.10 Å
Atom count	275076
Residues	34494
Excluded volume	4895500 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9xqs__assembly_1__model_1`	84-meric （84）	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 (8)

Entity 1 Entity 1 polymer

Description description	PHIKZ087
Molecular weight formula_weight	110486.0 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,U,V
Atom count atom_count	91692

MASEFKNQLLNLRRNPVLMQSLMLSELDKQLNGETGERYDIPDSANPFVSLMEMGVIGVSAAFTEMEALSRRLYPRLAITSDELYLHMSDEDYIGRFAIPAQNYFNFILDYDEVIKYAVPYGDQGQRKLVIPRLTKFTGAGISYTMQYPLELRVMRHGGVVAEYNTDSLSPIETLSTNIAQMTMINDGRGHRLMNLIIPVKQFDITRYQETLNPSNLFEKEYVFSDQFYYARAYIKRTVDAQEWEEVITTHTDQVYDPLNLTVVLKVINNRLQVSIPAIYNTTGLATGVIRIDIYSTRGKIEIDYGSYQPDQFTYSLNDIDDDPKYTEPLKKLARISALSTYYVSGGSNSMDFDTLRNQVIDNTTGPQQLPITNVQLSADLARRGYTLVTNIDNITKKQYLASRRLGAPRTLDIISGAGVAMSQLQVSMNELVKSKHVKDNGDRITILPSMLYRFSNGRVSVVPDAQLDSILSSSAESIARQINDSRTVYCPFHGVLDATEDNFDYRPYYLDNPVINEKTFVGENDTAQLQASIDVFEIDRVTEGYRIKIRLDEGEQFKKLADEQIAVQIGYQPKGETKYASINGKFLGIEEEKRVYEFIIETNYDIDSSGAIYTTNMSMYDQFQKVFSTPLNTDFDVSIIVVNTITPGYIPNELDSLVQRHLLPSEFMVINRERLITTLGYDMTKIWHRNRTVFSQESYQTWPADVPAYYQKDVFETDSTGHIVITIGPDGKPVYKVKHKKGDPVLDANGKPVMQYRKGDTKLDANGKPILLEPRKILREMMVLMVDGLFYFATEQEAVAYRKEIPMEFVKWIQNDIDYIDQRLLETCELYLYPTTTFGDTIVSVREGQKSTVQVDQNFFTMLYLKPSAFANSTIRPSLIKTVKTIVNDMLGRKTIALSEIIAALEAAIGEDVLQIDAGGLGGSNNYSIITVDDDAVRLTLRKKLTVMANQELTIEDDMSITFLRHEQIQ

Entity 2 Entity 2 polymer

Description description	PHIKZ128
Molecular weight formula_weight	84297.8 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

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

MNNSNSVYFKVYLDDVIRLARSIVIKFDDIADQINTELYRDYLFKADPDKPWTWKYYLNLAGEYHETDTMMYVTSADTLERIEFTKENLRLHRATAREFTPGSQSYNNLVLKYPTQAGLINGILYPIDINFAIDSDNGDILYFDNKYVEGNEDNFIPELQSWIKAFYNSNYNSQYLITDDLYLTAFLGELTVLLPLEIMNIRLGNARSRRVHSFHIREYLASANRLDEFMPYLNKSQQLWLYRNIQFLRRNSGKQAIFDQLVEKILTERGIPVISYTLEQNTANMPPNLKPDVEMVKHDMNIPVVQPGQDKNTVLEILTREDPIARDNPLVKYDAEKEITEQVSTSAFSNLPTRVLDSEVIDRSNSSVRNLMNVLLNNWLHLSTSGRYRAYVSIPNPRTGEYMLMTVKDAFIVMLYSYGRTKDFKFDKIPSVPAYEVLRNPFPTYEELQVQVDKKLVGPNLLGAVRDNFTPMGDYISTELFYTDSSRFHKEYLKGWELYSFNDHKDIRCYLEQSVKTFYINRMCKLVNEDISFEQYFKDSAFAIADLTTSEYEQLVVDCINIATGSDLNRVITLGEIQRELLRLVSKLSSYPLQFLRNVSFTDFHVLGIVMPRLGDYGAAGNANHIVPINNINVLTYRTSAEMTYYINDVDIIPFNDWSYWAEDRWWINPFVGIKELSLSEYTYQIPSMVNVWQYTEEVSEHTPPDGGLGQYNNSTDPNWPNLP

Entity 3 Entity 3 polymer

Description description	PHIKZ161
Molecular weight formula_weight	22584.5 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,F,G,H

MIPPIGTKGRYELISPFDKLIKPNTLYVNSAVRAFIDIENNGRNVYDTYYKPLNIDISEYNKDRENGEYIVTLTTEQYNPVYVPSSYIARYPDLNGVPYQQTVLSASLGALPVTLDLTNLQAKVAGVISDVIGVEPVINLGSMPLMSDVTPQQHEAAENAREAKIKDRETDYARIVKLEADNTSLSQRLAIAENLLIENGIIS

Entity 4 Entity 4 polymer

Description description	PHIKZ088
Molecular weight formula_weight	40503.5 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I,J

MAASEFLDQIIQNIGQSPRDKAISDSIRGLNIIGRNSTIAPNTENHGFTFFTRPILNLSYDNCKIDRKLTMLLNDNPYSLSRSIRAILDPWSNRDGMNAVDVDPLNPFIPLLSNNLVSLTGWEDFQLNLATTNPGIYRDAMSYVDDVPYQFNTFDLQASFRNMEGDPITNLLYMWERYSALVKEGRLWPYPEMILLKEVDYNTRVWRIVTDVTRTYITRIFCSGASIFMNANTGRTGDFIGDGSETPFQNANDLLSVSIRCMGMDVYDYILFYEFNDLVEDFNPNMSDERRYTQMQKIKIYEREYFSRSKVYPYINTDNSELEWWISKEDYNAMLPGLLRNPPPPQKEG

Entity 5 Entity 5 polymer

Description description	PHIKZ182
Molecular weight formula_weight	73539.5 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K,L

MATDSKPIWLRQAFLLPTPDERQVGFGSRSKRRNAASAAFKFTNTSPGGNWAINPLPQYTRYADIRLPGIGRTYDERHLGMGRYYSEAHDDTAQLIHMSFGVPRFSSWASFFTNFYDRSAAQFANSGTTSRAWYELGNAAGYLVSLPLQPFIIGVTAANRVINFLAKTQPSKWYYFKPTMHAYWSAVNTLANEFAINLGIRPRVFDGIQKDLEIPGQTVTPADLANFHRMFPGLIREDGSFDIMSLSGRTQRKSDEAKKIWDTLVEKARNQDDLHNVVDNYLRSSFKDNGDSKVSARDYLLSYIEVDRKPGAGVIDSENFSSWSKLKNVYDFVVGAQRDGSQFVTFRVEHNGEVSESFTNTTTDIGVAQTLNSKVQEGRAAQFNFMQGNVTEMMGNVTRGVMDFIGGALDSVNMAGLATLAGSAFVDVPEHWENSVASLPTASYTIPLVCPYGNVMSRFLDIFIPLAMILPMGLPRSAGRSAYTSPFICQIFHQGRVQRQLGIVDSITIRRGTGNIGWNAENHMLNCEVQINVKDLSKIMHIPLKAGFADGSIIDTAFKAAGATIGEAVAEGIGADGDRGIGVGLALTDGSVWDEQSLFQDYTATLTSQSWSDFYYVGKRMNLNITRATQSFKNWRSPSNFLSWVLDGEPARALSAFANTTGRF

Entity 6 Entity 6 polymer

Description description	PHIKZ049
Molecular weight formula_weight	15212.2 kDa
Source method src_method	nat
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M,N,O,P,Q,R,S,T

MAVNIRDIQAGDRISFEVYPYAILGTNFKNVTVEGIVTASVASAMGFDVAAAGQQVYPSLPAGSAPVDPTQYNYIRVRMANNESVMFIGIPWIVANTLERVDGKRLTLVWDDVDNKMYDRILLAVRQNNAPPTSVTYE

Entity 7 Entity 7 polymer

Description description	PHIKZ029
Molecular weight formula_weight	77712.3 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	W,X,Y,Z

MAYYNAVPRVVFNGIRDRSRRPLIRPDITFAQHCPLLRLFTETGPTETTYVGDSDDGFASIYGQASLDPRSKFFNTQSLLALNLLGRGNGFYVKRLRPEDAANPSRLIVAIEIVEDEIPLTIRRLSGFNYPNSVRDIGNAPVPTTDKVDGLKARIILIEDNTSEVGTQRVLPGTLVSDKDGSQSLVYPLFEAPVSFFGKLGDSNGMRVWSTTTADIEEFDEAAMAKFKTRQFRIQLIEKPEVGTSPVIVKTADQQDYLNITFDKGVYSDMYNADLYVGDVLVDSYSDDGVVSGLSPLYSPFSQFYVYHENIDLVRQMIYDTEMRVNPAAAAHTTAPGEIDFLTFLAVDGDPYQGIQVLGPLDGGITLGKDGNIYASGGTDGTTDLEEYAKLVDIENINFGKLNDRYNNIAEYQFGVLYDTGLPMESKYRAMRVLSARRDLQYFFTTFVETDSRLPDEATELSRVQQIITRLKAFPESTLYGTGVCRAMIVMQSGKLMDGTYRKYVPQLLDVAMSWARYAGAGTGNLVPGMEMDVSPNNRVTFVKDLNVKFFDDRVRAQAWANGATWSQSYDHRSSYYPCLRSVMLDDTSVLLSPITVNICCVLIRLIHKVHAQFSGNATLTPEQLVERCDEYILDLVRDMFGTRVNIIPRTEITPIDANNGTSWTCNVTVEANNPRTTLNFNLETVRIETPPAQQ

Entity 8 Entity 8 polymer

Description description	PHIKZ062
Molecular weight formula_weight	15352.4 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	a,b

MPKTIPTVSVSGWIDTPEQVADKTISYFILSNPSQDIINRERSTSLPYLLKVYANDYPQLEIELRRILSDKFNIVFGNELIDSNVIVKDESNTGDGKMSITFTATILVQGKPVQIGKLVRYQYSNILEIARLNNGE

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Resolution resolution	3.650 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	3.65 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	22539

Structure of the inner peripheral region in the phage phiKZ baseplate complex

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

PHIKZ087

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ128

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ161

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ088

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ182

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ049

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ029

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ062

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

9xqs__assembly_1__model_1

9xqs__assembly_1__model_1 | I(q)

9xqs__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer