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Entry version 133 (07 Apr 2021)
Sequence version 1 (01 May 1999)
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Protein

Prohibitin-2, mitochondrial

Gene

PHB2

Organism
Arabidopsis thaliana (Mouse-ear cress)
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

Prohibitin probably acts as a holdase/unfoldase for the stabilization of newly synthesized mitochondrial proteins.

By similarity

<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 - 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:
Prohibitin-2, mitochondrial
Short name:
Atphb2
<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:PHB2
Ordered Locus Names:At1g03860
ORF Names:F21M11.21
<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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<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 identifieri3702 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<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
  • UP000006548 <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 1

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT1G03860

The Arabidopsis Information Resource

More...
TAIRi
locus:2024142, AT1G03860

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 13Mitochondrial matrixSequence analysisAdd BLAST13
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei14 – 32Helical; Signal-anchor for type II membrane proteinSequence analysisAdd BLAST19
Topological domaini33 – 286Mitochondrial intermembraneSequence analysisAdd BLAST254

<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

Membrane, Mitochondrion, Mitochondrion inner membrane

<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_00004205971 – 286Prohibitin-2, mitochondrialAdd BLAST286

Proteomic databases

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

More...
PaxDbi
Q9ZNT7

PRoteomics IDEntifications database

More...
PRIDEi
Q9ZNT7

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
234719 [Q9ZNT7-1]

<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

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Mostly expressed in proliferative tissues, including vasculature, shoot and root apical tissues.1 Publication

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9ZNT7, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9ZNT7, AT

<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

Component of a prohibitin multimeric complex in mitochondrial membranes.

3 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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
24464, 4 interactors

Protein interaction database and analysis system

More...
IntActi
Q9ZNT7, 4 interactors

STRING: functional protein association networks

More...
STRINGi
3702.AT1G03860.3

<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

<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

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili186 – 219Sequence analysisAdd BLAST34

<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

Belongs to the prohibitin family.Curated

Keywords - Domaini

Coiled coil, Signal-anchor, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3090, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_047969_0_2_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9ZNT7

Identification of Orthologs from Complete Genome Data

More...
OMAi
MERAENC

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9ZNT7

Family and domain databases

Conserved Domains Database

More...
CDDi
cd03401, SPFH_prohibitin, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001107, Band_7
IPR036013, Band_7/SPFH_dom_sf
IPR000163, Prohibitin

The PANTHER Classification System

More...
PANTHERi
PTHR23222, PTHR23222, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01145, Band_7, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00679, PROHIBITIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00244, PHB, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF117892, SSF117892, 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>Sequences (2)i

<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.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: Q9ZNT7-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MSFNKVPNIP GAPALSALLK VSVIGGLGVY ALTNSLYNVD GGHRAVMFNR
60 70 80 90 100
LTGIKEKVYP EGTHFMVPWF ERPIIYDVRA RPYLVESTTG SHDLQMVKIG
110 120 130 140 150
LRVLTRPMGD RLPQIYRTLG ENYSERVLPS IIHETLKAVV AQYNASQLIT
160 170 180 190 200
QREAVSREIR KILTERASNF DIALDDVSIT TLTFGKEFTA AIEAKQVAAQ
210 220 230 240 250
EAERAKFIVE KAEQDRRSAV IRAQGEAKSA QLIGQAIANN QAFITLRKIE
260 270 280
AAREIAQTIA QSANKVYLSS NDLLLNLQEM NLEPKK
Length:286
Mass (Da):31,811
Last modified:May 1, 1999 - 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:i89A48ECBA4F56DB8
GO
Isoform 2 (identifier: Q9ZNT7-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-65: Missing.

Show »
Length:221
Mass (Da):24,897
Checksum:iB5C238E9B8E9C162
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0445411 – 65Missing in isoform 2. CuratedAdd BLAST65

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
U66592 mRNA Translation: AAD00156.1
U89791 mRNA Translation: AAD09244.1
AC003027 Genomic DNA Translation: AAD10682.1
CP002684 Genomic DNA Translation: AEE27624.1
CP002684 Genomic DNA Translation: AEE27625.1
CP002684 Genomic DNA Translation: AEE27626.1
AF370317 mRNA Translation: AAK44132.1
AY063102 mRNA Translation: AAL34276.1

Protein sequence database of the Protein Information Resource

More...
PIRi
C86169

NCBI Reference Sequences

More...
RefSeqi
NP_171882.1, NM_100266.3 [Q9ZNT7-1]
NP_973755.1, NM_202026.2 [Q9ZNT7-2]
NP_973756.1, NM_202027.2 [Q9ZNT7-1]

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT1G03860.1; AT1G03860.1; AT1G03860 [Q9ZNT7-1]
AT1G03860.2; AT1G03860.2; AT1G03860 [Q9ZNT7-2]
AT1G03860.3; AT1G03860.3; AT1G03860 [Q9ZNT7-1]

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
839228

Gramene; a comparative resource for plants

More...
Gramenei
AT1G03860.1; AT1G03860.1; AT1G03860 [Q9ZNT7-1]
AT1G03860.2; AT1G03860.2; AT1G03860 [Q9ZNT7-2]
AT1G03860.3; AT1G03860.3; AT1G03860 [Q9ZNT7-1]

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT1G03860

Keywords - Coding sequence diversityi

Alternative splicing

<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
U66592 mRNA Translation: AAD00156.1
U89791 mRNA Translation: AAD09244.1
AC003027 Genomic DNA Translation: AAD10682.1
CP002684 Genomic DNA Translation: AEE27624.1
CP002684 Genomic DNA Translation: AEE27625.1
CP002684 Genomic DNA Translation: AEE27626.1
AF370317 mRNA Translation: AAK44132.1
AY063102 mRNA Translation: AAL34276.1
PIRiC86169
RefSeqiNP_171882.1, NM_100266.3 [Q9ZNT7-1]
NP_973755.1, NM_202026.2 [Q9ZNT7-2]
NP_973756.1, NM_202027.2 [Q9ZNT7-1]

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

BioGRIDi24464, 4 interactors
IntActiQ9ZNT7, 4 interactors
STRINGi3702.AT1G03860.3

Proteomic databases

PaxDbiQ9ZNT7
PRIDEiQ9ZNT7
ProteomicsDBi234719 [Q9ZNT7-1]

Genome annotation databases

EnsemblPlantsiAT1G03860.1; AT1G03860.1; AT1G03860 [Q9ZNT7-1]
AT1G03860.2; AT1G03860.2; AT1G03860 [Q9ZNT7-2]
AT1G03860.3; AT1G03860.3; AT1G03860 [Q9ZNT7-1]
GeneIDi839228
GrameneiAT1G03860.1; AT1G03860.1; AT1G03860 [Q9ZNT7-1]
AT1G03860.2; AT1G03860.2; AT1G03860 [Q9ZNT7-2]
AT1G03860.3; AT1G03860.3; AT1G03860 [Q9ZNT7-1]
KEGGiath:AT1G03860

Organism-specific databases

AraportiAT1G03860
TAIRilocus:2024142, AT1G03860

Phylogenomic databases

eggNOGiKOG3090, Eukaryota
HOGENOMiCLU_047969_0_2_1
InParanoidiQ9ZNT7
OMAiMERAENC
PhylomeDBiQ9ZNT7

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9ZNT7

Gene expression databases

ExpressionAtlasiQ9ZNT7, baseline and differential
GenevisibleiQ9ZNT7, AT

Family and domain databases

CDDicd03401, SPFH_prohibitin, 1 hit
InterProiView protein in InterPro
IPR001107, Band_7
IPR036013, Band_7/SPFH_dom_sf
IPR000163, Prohibitin
PANTHERiPTHR23222, PTHR23222, 1 hit
PfamiView protein in Pfam
PF01145, Band_7, 1 hit
PRINTSiPR00679, PROHIBITIN
SMARTiView protein in SMART
SM00244, PHB, 1 hit
SUPFAMiSSF117892, SSF117892, 1 hit

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 nameiPHB2_ARATH
<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: Q9ZNT7
Secondary accession number(s): F4I2J2
<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: January 9, 2013
Last sequence update: May 1, 1999
Last modified: April 7, 2021
This is version 133 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 programPlant 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

Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families
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