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UniProtKB - Q4Z9G3 (PORTL_BPTWO)
Protein
Probable portal protein
Gene
N/A
Organism
Staphylococcus phage Twort (strain DSM 17442 / HER 48) (Bacteriophage Twort)
Status
Functioni
Forms the portal vertex of the capsid. This portal plays critical roles in head assembly, genome packaging, neck/tail attachment, and genome ejection. The portal protein multimerizes as a single ring-shaped homododecamer arranged around a central channel. Binds to the terminase subunits to form the packaging machine.
By similarityGO - Molecular functioni
- DNA binding Source: UniProtKB-KW
GO - Biological processi
- viral genome ejection through host cell envelope, contractile tail mechanism Source: UniProtKB-KW
Keywordsi
Names & Taxonomyi
Protein namesi | Recommended name: Probable portal protein |
Organismi | Staphylococcus phage Twort (strain DSM 17442 / HER 48) (Bacteriophage Twort) |
Taxonomic identifieri | 1283338 [NCBI] |
Taxonomic lineagei | Viruses › Duplodnaviria › Heunggongvirae › Uroviricota › Caudoviricetes › Caudovirales › Herelleviridae › Twortvirinae › Twortvirus › |
Virus hosti | Staphylococcus virus Twort [TaxID: 55510] |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000432538 | 1 – 576 | Probable portal proteinAdd BLAST | 576 |
Interactioni
Subunit structurei
Homododecamer.
By similarityStructurei
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 374 – 399 | DisorderedSequence analysisAdd BLAST | 26 | |
Regioni | 506 – 576 | DisorderedSequence analysisAdd BLAST | 71 |
Sequence similaritiesi
Belongs to the phage portal family.Curated
Family and domain databases
InterProi | View protein in InterPro IPR006944, Phage/GTA_portal |
Pfami | View protein in Pfam PF04860, Phage_portal, 1 hit |
i Sequence
Sequence statusi: Complete.
Q4Z9G3-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MVTRLADIFK RLRLGRDYED IIDTVPIDDG LQANIRNIEE KSKELNKSLY
60 70 80 90 100
GKQQAYAEPF LEVMDTNPEF RTKRSYMKNS DNLHDVLKQF GNNPILNAII
110 120 130 140 150
LTRSNQVAMY CQPSRYNERG LGFEVRMRDL DAEPGKKEKE EIKRIENFIL
160 170 180 190 200
NTGRDKDIDR DSFQSFCRKI VRDTYTYDQV NFEKVFNKKN ATTMDKFIAV
210 220 230 240 250
DPSTIFYATD KNGKIIKGGK RFVQVINKKV VASFTSREMA MGIRNPRTEL
260 270 280 290 300
SSSGYGLSEV EIAMKQFIAY NNTETFNDRF FSHGGTTRGI LQIKSEQQQS
310 320 330 340 350
QRALENFKRE WKSSFSGING SWQVPVVMAD DIKFVNMTPT ANDMQFEKWL
360 370 380 390 400
TYLINIISAL YGIDPAEIGF PNRGGATGGK GGNTLNEADP GKKQQQSQNK
410 420 430 440 450
GLQPLLRFIE DLINTHIISE YSDKYVFQFV GGDTKSELDK IKILQEEVKT
460 470 480 490 500
YKTVNEARKE KGLKPIEGGD VLLDGSFIQS MSLNTQKEQY EDTKQKERFD
510 520 530 540 550
MIQQFLNSPD DEEPQQESTE DKVDGRESND PTKIDSPVGT DGQLKDQDNV
560 570
KSQEGSNKGQ GTKGKGNEKP SDFKNN
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY954970 Genomic DNA Translation: AAX92308.1 |
RefSeqi | YP_238542.1, NC_007021.1 |
Genome annotation databases
GeneIDi | 5130361 |
KEGGi | vg:5130361 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY954970 Genomic DNA Translation: AAX92308.1 |
RefSeqi | YP_238542.1, NC_007021.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Genome annotation databases
GeneIDi | 5130361 |
KEGGi | vg:5130361 |
Family and domain databases
InterProi | View protein in InterPro IPR006944, Phage/GTA_portal |
Pfami | View protein in Pfam PF04860, Phage_portal, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | PORTL_BPTWO | |
Accessioni | Q4Z9G3Primary (citable) accession number: Q4Z9G3 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 2015 |
Last sequence update: | June 7, 2005 | |
Last modified: | June 2, 2021 | |
This is version 31 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Viral Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families