SAXSdb — 9xqd

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

PHIKZ026

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ027 × 2 （Q8SDD5） PHIKZ127 × 1 （Q8SD35） PHIKZ130 × 2 （Q8SD32） PHIKZ139 × 6 （Q8SD23） PHIKZ157 × 6 （Q8SD05）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SDD6_BPDPK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain a； PDBConstruct 1–552； UniProt 1–552 Author chain b； PDBConstruct 1–552； UniProt 1–552 Author chain c； PDBConstruct 1–552； UniProt 1–552 Author chain d； PDBConstruct 1–552； UniProt 1–552 Author chain e； PDBConstruct 1–552； UniProt 1–552 Author chain f； PDBConstruct 1–552； UniProt 1–552

PHIKZ027

OrganismNot specified

UniProt Q8SDD5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ026 × 6 （Q8SDD6） PHIKZ127 × 1 （Q8SD35） PHIKZ130 × 2 （Q8SD32） PHIKZ139 × 6 （Q8SD23） PHIKZ157 × 6 （Q8SD05）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SDD5_BPDPK
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain G； PDBConstruct 1–898； UniProt 1–898 Author chain K； PDBConstruct 1–898； UniProt 1–898

PHIKZ127

OrganismNot specified

UniProt Q8SD35

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ026 × 6 （Q8SDD6） PHIKZ027 × 2 （Q8SDD5） PHIKZ130 × 2 （Q8SD32） PHIKZ139 × 6 （Q8SD23） PHIKZ157 × 6 （Q8SD05）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD35_BPDPK
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain 0； PDBConstruct 1–290； UniProt 1–290

PHIKZ130

OrganismNot specified

UniProt Q8SD32

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ026 × 6 （Q8SDD6） PHIKZ027 × 2 （Q8SDD5） PHIKZ127 × 1 （Q8SD35） PHIKZ139 × 6 （Q8SD23） PHIKZ157 × 6 （Q8SD05）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD32_BPDPK
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain H； PDBConstruct 1–427； UniProt 1–427 Author chain L； PDBConstruct 1–427； UniProt 1–427

PHIKZ139

OrganismNot specified

UniProt Q8SD23

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ026 × 6 （Q8SDD6） PHIKZ027 × 2 （Q8SDD5） PHIKZ127 × 1 （Q8SD35） PHIKZ130 × 2 （Q8SD32） PHIKZ157 × 6 （Q8SD05）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD23_BPDPK
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain 1； PDBConstruct 1–298； UniProt 1–298 Author chain 2； PDBConstruct 1–298； UniProt 1–298 Author chain 3； PDBConstruct 1–298； UniProt 1–298 Author chain 4； PDBConstruct 1–298； UniProt 1–298 Author chain 5； PDBConstruct 1–298； UniProt 1–298 Author chain 6； PDBConstruct 1–298； UniProt 1–298

PHIKZ157

OrganismNot specified

UniProt Q8SD05

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 23	PHIKZ026 × 6 （Q8SDD6） PHIKZ027 × 2 （Q8SDD5） PHIKZ127 × 1 （Q8SD35） PHIKZ130 × 2 （Q8SD32） PHIKZ139 × 6 （Q8SD23）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8SD05_BPDPK
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain J； PDBConstruct 1–445； UniProt 1–445 Author chain N； PDBConstruct 1–445； UniProt 1–445 Author chain P； PDBConstruct 1–445； UniProt 1–445 Author chain R； PDBConstruct 1–445； UniProt 1–445 Author chain T； PDBConstruct 1–445； UniProt 1–445 Author chain V； PDBConstruct 1–445； UniProt 1–445

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	9xqd
Deposition date deposition_date	2025-11-18
Structure title title	The structure of outer peripheral region in the phage phiKZ baseplate complex
Keywords keywords	baseplate, outer 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.

9xqd__assembly_1__model_1

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

Download this curve (.dat)

9xqd__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9xqd__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	98.46 Å
Rg (electron density)	98.62 Å
Total Rg	98.56 Å
Atom count	71157
Residues	8852
Excluded volume	1264000 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9xqd__assembly_1__model_1`	23-meric （23）	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 (6)

Entity 1 Entity 1 polymer

Description description	PHIKZ026
Molecular weight formula_weight	62047.6 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	a,b,c,d,e,f
Atom count atom_count	71157

MTTSYESSQYQPPQHKNHFWFRGDIVSYAGETGKAIPAKGDLVFDAAQGWFIVREVDETTGVSILDPWYMPQKPGNENEQNLLVAVGPGYSSESYRLFLDQSVTPFNICPDRRLHFYGSMVHGYKVFLGSDISEIHGKVISLFYDNAGNYLGPTIPVESVPDPLTQQNVVKALMNGRTAEKMQNGERVTLVAYDDVGGPVSIAQLVVMNTEVIAQEDTSKKYVGGITIESPFISPADPKVIEFPLNVPVESLPMMGAVHYRDGKKHVMNIDGTAMAIYGLRNYIATEEGQEFKLTLSYQLAQDELSYLSTPSANRRIQETYTARTTPVQGAYSCRMFVYPAWVNEAVGYRLEFWLANIDRQQIWNITPYVELGANSAPFNPRGYGTIQTLTYAVNLNQVDGRFLPVRFASTFQVALLSAGNNRNANWEIYSRPDQGEAYGRDLKADIEFINGNLWDLRLANGAQSQAAWLKKMYFAAEPLTGPMEATPPTPTHFRVRTVHNEYEYTVSQWNTALRINAQDMADGALLQITWIRREYDTDLQLAITALPCLQR

Entity 2 Entity 2 polymer

Description description	PHIKZ027
Molecular weight formula_weight	105364.2 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

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

MNAYLLRHAIDNVWCNPAQDRQFVYELKQLTPRYGVRVNWVVDYTRYKLPVQSTRDYWHLYQIGKMIPKHLGLPKVYNKWMSLNELAQNHLNLADVYVNSGINYSRNDTYVLITSSQNLLIAVKIDPLFPDLDENQPYLHVYNNAYFQSNRSDVAGHRWLVSESYRVKTISELTQFQIKIMDTIASKGGVPKYFVNGRYVNEISPVTATVGDVCDFILDPSIKRMVDFDLRTLPVFMSEIDSERKYILHYTDKTVQTIEFFDDVEAYIYQPLGNNRYTGVNYHHNESRWMRMLTHKDYSIPTARIDQFKALHPEDPRRGADPTRWPSQNWKALDNLVFRIYIHHSGYDRPLVADSHRIQILYRLKSEDIIRAMTGADSGNPLWRAENLEQSPYCWFMSAPSSFVYPLTFNLPEETSPSKVEAQNMAGDVFGYYEAANIQGYNPAWVYNDAGLKTADLRYNYWLDATVFEYDEKGILLGYNYHTAGRKYFPKDSRCAYVECINGKGSVDLHEAYGNDPVPLRDGDNWRVYVSPVWAGVPTGEWQDITDHPDRNNWGFYDDTTDDKRWVWIAKSNEWYGLVRTDEYFYLKELKFNKTDGIIKWSIRNTETHNGVKVDKLMEIPFGQYDVFVNGRPIIEGLDYTREWPQTVLCNLEYLNADPNAVNTILLRGTGFPTPDLKPYEPGEIGFIEYGVLSNDGIYKVHSNKQSRIIIDGHYRDPADLEFQEDQGTTVITDERNGAPFQIQTPQARFRDVYNDDYQARIKDDARDKQVTDFMTEYFPMKPQPNPDKIDYRYQVLSAFSCKIIHDIVKEYIKPPYQNGRYSDDDIVKQLKDYEWLAAYDIINKGYNKNKVVVYPHWYTEPVELDIFQWEYLNRILSIYLREVPPLSLFVKIKRNQP

Entity 3 Entity 3 polymer

Description description	PHIKZ127
Molecular weight formula_weight	33643.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	0

MFITRDYCKVDPWTAIVEMINNNYMYQLTPGTCKLLEFEAIDHKRTRIKIDPCRDNKPGELLPVVERTEFFYQRLDFNEFFKVPQVVEVKDVYLPFTTLDLAKLICEKNDIKFDLDDFYHQEINSYNQDVTITCNPDSLRFVGEFKIKLINTVRQDISLLTKVNSFPTIVKWPAGNGNKPTAEFITMSLDFTDYRSFLLPIKAFKENPYSLEMAAILKKVTGLDFVAKSNATDYNITNIVRNGVNNFIVDYNGPVVPAYSLRNDITNVMVLRLSKTMCPNINGRLLIHYN

Entity 4 Entity 4 polymer

Description description	PHIKZ130
Molecular weight formula_weight	48651.3 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

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

MYTLVRSRHRIDRKSGRWTDVDLANEKISTLSVKFGDIYLYIEYPGPTAPILNALHWVNVTNEISSANPDLTVQEWLTSLGDKSLPFDDELPNEKVRLVKYAQAWHAGYIAQPVARNGHVTDGGSKFKKEDILLTHPKHKPEDVCRKCLITVNTMFHLADYTSAGVRIIDGNKTVRTANDNQIGLYSFETIGDIKYVPIKTDMIYPQQVGAPLFDATYIDMPEDIDLTNKTILLSLGGYLCVLGKGFNRVGVRTWRVDFGSLSMFDRYMQSRELIDLSSLGLEIDDKNKTLLSVEQIKKDSVIKAYMTLSQTFFIVLDSPSLFQEFVPLEPLKLPGRYQATNTRTEVYPKYTKPDQLPVVGAHGKMLDYHFIHEDKHSVYCCTLNIRNNFDAHTHDWKTEKVVDGGRYPAWPFVHDTAYLRILGVDG

Entity 5 Entity 5 polymer

Description description	PHIKZ139
Molecular weight formula_weight	32691.9 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	1,2,3,4,5,6

MSAIDQQYINVTRTAYGSYLQTCKYLGIPFKLIPNTTLNEKFSIQQNVAPSAGQIPNVQYMVIGNRGHYFVKGPDGSDEVENNIHRANDAALYNHIPFVLREVADDLPAQRRNMYRLRRLEEHNGKQYFAYYARKIDVTGVVPKLLKITIVDGEPVVTPYVPNRDDLNPTPPTISNQGTVVGSNESISASAIVTVNLTAEEILEITTAHRIRTGSVRSPIISEIGLCSGVDKDVQGQSGASGNFIYTEVIACQINVFIATNHAVGYNSDGLKLTFDIGGVEPMLGSKAINVAKFVPKD

Entity 6 Entity 6 polymer

Description description	PHIKZ157
Molecular weight formula_weight	51155.7 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J,P,T,V,N,R

MYNLKGFYEYPSLIDNATDKVAKFGEISDNSATYAKDKKILTSESTPSTAFIAFHSVRDEIPVDITAEYQLQVLKIGEFLLKQGNSGTIGKNTTPTQVNQMLMTEFNGKLSTVRSGPIGNMNTRLYLPEYIEFSLIVTGNEPNLIRVWLADDAFAGQYDEFKIEVVHPIGKNAQGNYDDWFKDPLEVKKLLDKFDLPTKLEEVQAKRAQYPYTYQNAYRFDYHNPRDDTMQFPAYWIVIIYGVAGNNLDIIKDAICDELLDGSAHTREEWEKILPELFRTTEFIICPFWNQLALENSDFRGGIYSPIIDPRKRIALMRRTARGSGYTTTYFDSHYELSCNIYRSVGFSVIGNAKNRNNLTQFSQVFPDYIIATNTSEDINRISVETREFLLVFADLLKAAEDMDRYTTVPMGMSRMIRDDVIYAAKVYKNINYMVVTRKSVEQFG

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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	—

Resolution resolution	4.530 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	4.53 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	131125

The structure of outer peripheral region in the phage phiKZ baseplate complex

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

PHIKZ026

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ027

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ127

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ130

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ139

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHIKZ157

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

9xqd__assembly_1__model_1

9xqd__assembly_1__model_1 | I(q)

9xqd__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Entity 6 Entity 6 polymer

Polymer Polymer

7. Citations (1)