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Entry version 89 (07 Oct 2020)
Sequence version 2 (23 Jan 2007)
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Protein

Major capsid protein

Gene

5

Organism
Salmonella phage P22 (Bacteriophage P22)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Self-assembles to form an icosahedral capsid with a T=7 symmetry.1 Publication1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei14Essential for binding to the capsid assembly scaffolding protein1 Publication1
Sitei61Involved in capsid stabilization and maturation1 Publication1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

  • identical protein binding Source: CAFA

GO - Biological processi

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Major capsid proteinCurated
Alternative name(s):
Gene product 5Curated
Short name:
gp5
Major head proteinCurated
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:5
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSalmonella phage P22 (Bacteriophage P22)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri10754 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiVirusesDuplodnaviriaHeunggongviraeUroviricotaCaudoviricetesCaudoviralesPodoviridaeLederbergvirus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section only exists in viral entries and indicates the host(s) either as a specific organism or taxonomic group of organisms that are susceptible to be infected by a virus.<p><a href='/help/virus_host' target='_top'>More...</a></p>Virus hostiSalmonella typhimurium [TaxID: 90371]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002165 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Genome
  • UP000001795 Componenti: Genome
  • UP000001796 Componenti: Genome
  • UP000007960 Componenti: Genome
  • UP000001315 Componenti: Genome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywords - Cellular componenti

Capsid protein, T=7 icosahedral capsid protein, Virion

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi5E → A: Impaired phage growth; probable capsid protein misfolding. 1 Publication1
Mutagenesisi14D → A: Impaired phage growth; inability of the mutant capsid protein to interact properly with scaffolding protein. 1 Publication1
Mutagenesisi15E → A: Decreased phage growth. 1 Publication1
Mutagenesisi18E → A: Decreased phage growth. 1 Publication1
Mutagenesisi61W → N or V: Drastically decreases capsid stability. 1 Publication1
Mutagenesisi241W → A: Cold-sensitive phenotype probably due to an assembly defect. 1 Publication1
Mutagenesisi242Q → A: Cold-sensitive phenotype probably due to an assembly defect. 1 Publication1
Mutagenesisi243L → A: No effect on phage production. 1 Publication1
Mutagenesisi244D → A: Lethal. Complete loss of procapsids assembly. 1 Publication1
Mutagenesisi245N → A: Slight decrease in phage production. 1 Publication1
Mutagenesisi246D → A: Lethal. Complete loss of procapsids assembly, assembles as tubes instead. 1 Publication1
Mutagenesisi249K → A: No effect on phage production. 1 Publication1
Mutagenesisi251N → A: Cold-sensitive phenotype probably due to an assembly defect. 1 Publication1
Mutagenesisi377K → A: No effect on phage growth. 1 Publication1
Mutagenesisi385D → A: No effect on phage growth. 1 Publication1

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved; by host1 Publication
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000777522 – 430Major capsid proteinAdd BLAST429

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Keywords - Developmental stagei

Late protein

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts (via N-terminus) with the capsid assembly scaffolding protein (via C-terminus); capsid proteins and scaffolding proteins form building blocks that assemble to form the procapsid.

2 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

P26747
With#Exp.IntAct
itself2EBI-15582363,EBI-15582363

GO - Molecular functioni

Protein-protein interaction databases

Database of interacting proteins

More...
DIPi
DIP-29111N

Protein interaction database and analysis system

More...
IntActi
P26747, 1 interactor

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1430
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Biological Magnetic Resonance Data Bank

More...
BMRBi
P26747

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P26747

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P26747

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni2 – 56Binding to the capsid assembly scaffolding protein1 PublicationAdd BLAST55
Regioni223 – 345I domain1 PublicationAdd BLAST123

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The insertion domain (I domain) plays an important role in the folding of the capsid protein by acting as an intramolecular chaperone.2 Publications

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR024659, Phage_coat_Gp5

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF11651, P22_CoatProtein, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P26747-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MALNEGQIVT LAVDEIIETI SAITPMAQKA KKYTPPAASM QRSSNTIWMP
60 70 80 90 100
VEQESPTQEG WDLTDKATGL LELNVAVNMG EPDNDFFQLR ADDLRDETAY
110 120 130 140 150
RRRIQSAARK LANNVELKVA NMAAEMGSLV ITSPDAIGTN TADAWNFVAD
160 170 180 190 200
AEEIMFSREL NRDMGTSYFF NPQDYKKAGY DLTKRDIFGR IPEEAYRDGT
210 220 230 240 250
IQRQVAGFDD VLRSPKLPVL TKSTATGITV SGAQSFKPVA WQLDNDGNKV
260 270 280 290 300
NVDNRFATVT LSATTGMKRG DKISFAGVKF LGQMAKNVLA QDATFSVVRV
310 320 330 340 350
VDGTHVEITP KPVALDDVSL SPEQRAYANV NTSLADAMAV NILNVKDART
360 370 380 390 400
NVFWADDAIR IVSQPIPANH ELFAGMKTTS FSIPDVGLNG IFATQGDIST
410 420 430
LSGLCRIALW YGVNATRPEA IGVGLPGQTA
Length:430
Mass (Da):46,752
Last modified:January 23, 2007 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iBBDF63575C4B3899
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
M59749 Genomic DNA Translation: AAA72963.1
AF217253 Genomic DNA Translation: AAF75047.1
BK000583 Genomic DNA Translation: DAA00987.1
AF527608 Genomic DNA Translation: AAM81389.1
AB362338 Genomic DNA Translation: BAF80720.1
AB426868 Genomic DNA Translation: BAG12603.1

Protein sequence database of the Protein Information Resource

More...
PIRi
E40474, Z5BP22

NCBI Reference Sequences

More...
RefSeqi
NP_059630.1, NC_002371.2

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
1262831

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vg:1262831

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M59749 Genomic DNA Translation: AAA72963.1
AF217253 Genomic DNA Translation: AAF75047.1
BK000583 Genomic DNA Translation: DAA00987.1
AF527608 Genomic DNA Translation: AAM81389.1
AB362338 Genomic DNA Translation: BAF80720.1
AB426868 Genomic DNA Translation: BAG12603.1
PIRiE40474, Z5BP22
RefSeqiNP_059630.1, NC_002371.2

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2M5SNMR-A223-345[»]
2XYYelectron microscopy3.80A/B/C/D/E/F/G1-430[»]
2XYZelectron microscopy4.00A/B/C/D/E/F/G1-430[»]
3IYHelectron microscopy-A/B/C/D/E/F1-430[»]
3IYIelectron microscopy-A/B/C/D/E/F/G1-430[»]
5UU5electron microscopy3.30A/B/C/D/E/F/G1-430[»]
BMRBiP26747
SMRiP26747
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-29111N
IntActiP26747, 1 interactor

Genome annotation databases

GeneIDi1262831
KEGGivg:1262831

Miscellaneous databases

EvolutionaryTraceiP26747

Family and domain databases

InterProiView protein in InterPro
IPR024659, Phage_coat_Gp5
PfamiView protein in Pfam
PF11651, P22_CoatProtein, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCAPSD_BPP22
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P26747
Secondary accession number(s): A8CGC7, Q77D91, Q7PCI5
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: January 23, 2007
Last modified: October 7, 2020
This is version 89 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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