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Entry version 74 (02 Dec 2020)
Sequence version 1 (01 Nov 1996)
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Protein

Pre-neck appendage protein

Gene

12

Organism
Bacillus phage B103 (Bacteriophage B103)
Status
Reviewed-Annotation score:

Annotation score:3 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>
-Protein inferred from homologyi <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

Structural component of the 12 appendages that hang from the lower collar. Adhesion protein that binds to the host cell surface during virus attachment and mediates teichoic acids degradation.By similarity

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Mg2+By similarityNote: Binds 1 zinc ion per subunit.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi309MagnesiumBy similarity1
Metal bindingi311MagnesiumBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei701NucleophileBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi752 – 801ATPBy similarityAdd BLAST50

<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

GO - Biological processi

<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>Keywordsi

Biological processDegradation of host cell envelope components during virus entry, Host-virus interaction, Viral attachment to host adhesion receptor, Viral attachment to host cell, Virus entry into host cell
LigandATP-binding, Magnesium, Metal-binding, Nucleotide-binding

Protein family/group databases

MEROPS protease database

More...
MEROPSi
G02.001

<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:
Pre-neck appendage protein
Alternative name(s):
Gene product 12
Short name:
gp12
Late protein GP12
NP1
Protein p12
<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:12
<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>OrganismiBacillus phage B103 (Bacteriophage B103)
<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 identifieri10778 [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 lineageiVirusesDuplodnaviriaHeunggongviraeUroviricotaCaudoviricetesCaudoviralesPodoviridaePicovirinaeunclassified Picovirinae
<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 hostiBacillus subtilis [TaxID: 1423]
<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
  • UP000000971 <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

<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

Keywords - Cellular componenti

Viral tail fiber protein, Viral tail protein, Virion

<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 '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_00001065911 – 860Pre-neck appendage proteinAdd BLAST860

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Autocleaved to produce the 74 kDa gp12* assembly attached to the phage particles. Autocleavage of the C-terminus is a posttrimerization event that is followed by an ATP-dependent release.By similarity

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>Sitei697 – 698CleavageBy similarity2

<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

Homotrimer. Each appendage is a homotrimer of gp12*.

By similarity

<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

3D structure databases

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

More...
SMRi
Q37893

Database of comparative protein structure models

More...
ModBasei
Search...

<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

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi557 – 607Ser-richPROSITE-ProRule annotationAdd BLAST51

<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 N-terminus has three domains that function to attach the appendages to the phage, digest the cell wall teichoic acids, and bind irreversibly to the host. The C-terminus is an autochaperone that aids trimerization.By similarity

Keywords - Domaini

Repeat

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.160.20.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR006626, PbH1
IPR024535, Pectate_lyase_SF_prot
IPR012334, Pectin_lyas_fold
IPR011050, Pectin_lyase_fold/virulence
IPR021865, Peptidase_G2

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF12708, Pectate_lyase_3, 1 hit
PF11962, Peptidase_G2, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00710, PbH1, 8 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51126, SSF51126, 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.

Q37893-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQKPELRRFE KLGEMMVQVY ERYLPTAFDE SMTLLEKMNK IIEYLNQIGR
60 70 80 90 100
LTNDVVEEWN KVMEWILNDG LEDYVKETLE KWYEEGKFAD LVIQVIDELK
110 120 130 140 150
QFGVSVKTYG AVGDGKTDDI EAFEKAIASG YPVYIPNGKF AVSRSIKIPS
160 170 180 190 200
NTVITGAGID NAVVTFLDSV PLGDSLMIND NYATGNENIY LSDFTLDGNC
210 220 230 240 250
QRFGVNAIGS GGSRDSNLSI HASKNVHINR IKSINATLHG IDITCGGLDY
260 270 280 290 300
PYMGDGTTAP YPSRDIYISD CEAPSLGDDG ITTNNSEYIT ISNCNCHDPR
310 320 330 340 350
LLNNCNGIEI DDGSRHVQLS NNISKNCFGG VEVKAHGNVP AAYNVSINGH
360 370 380 390 400
MSIGDVRSYN FRHIGHHSAT DPESMSAKNI ICNNLMSVNP NNKRGFQNNA
410 420 430 440 450
APRVLAVSAY YGVVVNGLSA YTTEPANLTE TAISVQFRAR NVSLSGIVMT
460 470 480 490 500
GFSMAENAIY VIGGSRGGDS VNISNVTLNN SGRNGVAIGS GIDNVSISNV
510 520 530 540 550
SAIGDGIANP IAIVKTVNSN PQISGVNGIG YPTVCQVAGV AYNDGLTLFN
560 570 580 590 600
GAFRGATSSS EFIHSEGFVL GSTSKSGATA SKSGVVSSSN SIAKAERSLI
610 620 630 640 650
AGSASCTTSG SYNTILSSLN CETTDTGNLI STSSASKATG NRNIILASYG
660 670 680 690 700
VLASGSYKVN GGYGGEGTPS ASNIKLGNSL NGHIKAKNTV TGANTWSDYG
710 720 730 740 750
EYFESVDGQA IETGYLVTLE GSKIRKAQEG EKIIGAISET AGIILGESTW
760 770 780 790 800
NWQGQYLKNE FGGLIYETVE IDEGVFEKMP KINPSYNPKL EYLSRGERPE
810 820 830 840 850
WNIVGLIGQI MVRIDDTVKI GSGISAKDGI ATDGDTGIVM QITTPYESSK
860
GYGVAKVLLK
Length:860
Mass (Da):91,742
Last modified:November 1, 1996 - v1
<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:iAC5B38F4BC65ECB0
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
X99260 Genomic DNA Translation: CAA67660.1

NCBI Reference Sequences

More...
RefSeqi
NP_690646.1, NC_004165.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
955361

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vg:955361

<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
X99260 Genomic DNA Translation: CAA67660.1
RefSeqiNP_690646.1, NC_004165.1

3D structure databases

SMRiQ37893
ModBaseiSearch...

Protein family/group databases

MEROPSiG02.001

Genome annotation databases

GeneIDi955361
KEGGivg:955361

Family and domain databases

Gene3Di2.160.20.10, 1 hit
InterProiView protein in InterPro
IPR006626, PbH1
IPR024535, Pectate_lyase_SF_prot
IPR012334, Pectin_lyas_fold
IPR011050, Pectin_lyase_fold/virulence
IPR021865, Peptidase_G2
PfamiView protein in Pfam
PF12708, Pectate_lyase_3, 1 hit
PF11962, Peptidase_G2, 1 hit
SMARTiView protein in SMART
SM00710, PbH1, 8 hits
SUPFAMiSSF51126, SSF51126, 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 nameiFIB12_BPB03
<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: Q37893
<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: December 15, 1998
Last sequence update: November 1, 1996
Last modified: December 2, 2020
This is version 74 of the entry and version 1 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
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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