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Entry version 194 (07 Apr 2021)
Sequence version 4 (23 Jan 2007)
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Protein

Mitochondrial outer membrane protein porin 1

Gene

POR1

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
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

Forms a channel through the cell membrane that allows diffusion of small hydrophilic molecules. The channel adopts an open conformation at low or zero membrane potential and a closed conformation at potentials above 30-40 mV. The open state has a weak anion selectivity whereas the closed state is cation-selective. Is the major permeability factor of the mitochondrial outer membrane.1 Publication

<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

Molecular functionPorin
Biological processIon transport, Transport

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-SCE-70268, Pyruvate metabolism

Protein family/group databases

Transport Classification Database

More...
TCDBi
1.B.8.1.1, the mitochondrial and plastid porin (mpp) family

<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:
Mitochondrial outer membrane protein porin 1
Alternative name(s):
Voltage-dependent anion-selective channel protein 1
Short name:
VDAC-1
<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:POR1
Synonyms:OMP2, VDAC1
Ordered Locus Names:YNL055C
ORF Names:N2441, YNL2441C
<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>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<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 identifieri559292 [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 lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<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
  • UP000002311 <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: Chromosome XIV

Organism-specific databases

Saccharomyces Genome Database

More...
SGDi
S000005000, POR1

Eukaryotic Pathogen, Vector and Host Database Resources

More...
VEuPathDBi
FungiDB:YNL055C

<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

Membrane, Mitochondrion, Mitochondrion outer membrane

<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>Mutagenesisi19K → E: 2.5-fold reduction in steepness of voltage dependence. 1 Publication1
Mutagenesisi51D → K: 2-fold increase in steepness of voltage dependence. 1 Publication1
Mutagenesisi61K → E: Alters the selectivity of VDAC. 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 methionineiRemoved1 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_00000505242 – 283Mitochondrial outer membrane protein porin 1Add BLAST282

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei109PhosphoserineCombined sources1
Modified residuei117PhosphothreonineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P04840

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P04840

PRoteomics IDEntifications database

More...
PRIDEi
P04840

2D gel databases

University College Dublin 2-DE Proteome Database

More...
UCD-2DPAGEi
P04840

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P04840

<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 with AIM5, FCJ1 and MOS1.

1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
35766, 449 interactors

Database of interacting proteins

More...
DIPi
DIP-6453N

Protein interaction database and analysis system

More...
IntActi
P04840, 91 interactors

Molecular INTeraction database

More...
MINTi
P04840

STRING: functional protein association networks

More...
STRINGi
4932.YNL055C

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P04840, protein

<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
P04840

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

<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

Consists mainly of membrane-spanning sided beta-sheets. 19 strands distributed along the entire VDAC protein, have the potential to adopt transmembrane beta pleated sheet structures, which rolled together may form a 'beta-barrel' type structure, possessing pore dimensions.

<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

Keywords - Domaini

Transmembrane, Transmembrane beta strand

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3126, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00950000182869

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_044399_0_1_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P04840

Identification of Orthologs from Complete Genome Data

More...
OMAi
WDSKAGN

Family and domain databases

Conserved Domains Database

More...
CDDi
cd07306, Porin3_VDAC, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.40.160.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR023614, Porin_dom_sf
IPR001925, Porin_Euk
IPR027246, Porin_Euk/Tom40

The PANTHER Classification System

More...
PANTHERi
PTHR11743, PTHR11743, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01459, Porin_3, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00185, EUKARYTPORIN

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00558, EUKARYOTIC_PORIN, 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.

P04840-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSPPVYSDIS RNINDLLNKD FYHATPAAFD VQTTTANGIK FSLKAKQPVK
60 70 80 90 100
DGPLSTNVEA KLNDKQTGLG LTQGWSNTNN LQTKLEFANL TPGLKNELIT
110 120 130 140 150
SLTPGVAKSA VLNTTFTQPF FTARGAFDLC LKSPTFVGDL TMAHEGIVGG
160 170 180 190 200
AEFGYDISAG SISRYAMALS YFAKDYSLGA TLNNEQITTV DFFQNVNAFL
210 220 230 240 250
QVGAKATMNC KLPNSNVNIE FATRYLPDAS SQVKAKVSDS GIVTLAYKQL
260 270 280
LRPGVTLGVG SSFDALKLSE PVHKLGWSLS FDA
Length:283
Mass (Da):30,428
Last modified:January 23, 2007 - v4
<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:iC99D03711AF9B54D
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti118Q → E in CAA26184 (PubMed:2408884).Curated1
Sequence conflicti118Q → E in AAA35208 (PubMed:2442148).Curated1
Sequence conflicti203 – 207GAKAT → AKATM in AAA35208 (PubMed:2442148).Curated5

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X02324 mRNA Translation: CAA26184.1
M34907 mRNA Translation: AAA35208.1
U12141 Genomic DNA Translation: AAA99656.1
Z71331 Genomic DNA Translation: CAA95926.1
BK006947 Genomic DNA Translation: DAA10489.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S58721, MMBYP

NCBI Reference Sequences

More...
RefSeqi
NP_014343.1, NM_001182894.1

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YNL055C_mRNA; YNL055C; YNL055C

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
855669

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YNL055C

<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
X02324 mRNA Translation: CAA26184.1
M34907 mRNA Translation: AAA35208.1
U12141 Genomic DNA Translation: AAA99656.1
Z71331 Genomic DNA Translation: CAA95926.1
BK006947 Genomic DNA Translation: DAA10489.1
PIRiS58721, MMBYP
RefSeqiNP_014343.1, NM_001182894.1

3D structure databases

SMRiP04840
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi35766, 449 interactors
DIPiDIP-6453N
IntActiP04840, 91 interactors
MINTiP04840
STRINGi4932.YNL055C

Protein family/group databases

TCDBi1.B.8.1.1, the mitochondrial and plastid porin (mpp) family

PTM databases

iPTMnetiP04840

2D gel databases

UCD-2DPAGEiP04840

Proteomic databases

MaxQBiP04840
PaxDbiP04840
PRIDEiP04840

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
855669

Genome annotation databases

EnsemblFungiiYNL055C_mRNA; YNL055C; YNL055C
GeneIDi855669
KEGGisce:YNL055C

Organism-specific databases

SGDiS000005000, POR1
VEuPathDBiFungiDB:YNL055C

Phylogenomic databases

eggNOGiKOG3126, Eukaryota
GeneTreeiENSGT00950000182869
HOGENOMiCLU_044399_0_1_1
InParanoidiP04840
OMAiWDSKAGN

Enzyme and pathway databases

ReactomeiR-SCE-70268, Pyruvate metabolism

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P04840
RNActiP04840, protein

Family and domain databases

CDDicd07306, Porin3_VDAC, 1 hit
Gene3Di2.40.160.10, 1 hit
InterProiView protein in InterPro
IPR023614, Porin_dom_sf
IPR001925, Porin_Euk
IPR027246, Porin_Euk/Tom40
PANTHERiPTHR11743, PTHR11743, 1 hit
PfamiView protein in Pfam
PF01459, Porin_3, 1 hit
PRINTSiPR00185, EUKARYTPORIN
PROSITEiView protein in PROSITE
PS00558, EUKARYOTIC_PORIN, 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 nameiVDAC1_YEAST
<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: P04840
Secondary accession number(s): D6W1C3
<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 13, 1987
Last sequence update: January 23, 2007
Last modified: April 7, 2021
This is version 194 of the entry and version 4 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 programFungal 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

Direct protein sequencing, Reference proteome

Documents

  1. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  2. Yeast chromosome XIV
    Yeast (Saccharomyces cerevisiae) chromosome XIV: entries and gene names
  3. SIMILARITY comments
    Index of protein domains and families
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