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Entry version 114 (07 Oct 2020)
Sequence version 1 (20 Dec 2005)
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Protein

Protein translocase subunit SecF

Gene

secF

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:4 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

Part of the Sec protein translocase complex. Interacts with the SecYEG preprotein conducting channel. SecDF uses the proton motive force (PMF) to complete protein translocation after the ATP-dependent function of SecA. The large periplasmic domain is thought to have a base and head domain joined by a hinge; movement of the hinge may be coupled to both proton transport and protein export, with the head domain capturing substrate, and a conformational change preventing backward movement and driving forward movement. Expression of V.alginolyticus SecD and SecF in E.coli confers Na+-dependent protein export, strongly suggesting SecDF functions via cation-coupled protein translocation.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

Biological processProtein transport, Translocation, Transport

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:SECF
MetaCyc:SECF

Protein family/group databases

Transport Classification Database

More...
TCDBi
2.A.6.4.1, the resistance-nodulation-cell division (rnd) superfamily

<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:
Protein translocase subunit SecF
Alternative name(s):
Sec translocon accessory complex subunit SecF
<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:secF
Ordered Locus Names:b0409, JW0399
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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
  • UP000000318 <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
  • UP000000625 Componenti: Chromosome

<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 – 22CytoplasmicSequence analysisAdd BLAST22
<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>Transmembranei23 – 43HelicalSequence analysisAdd BLAST21
Topological domaini44 – 142PeriplasmicSequence analysisAdd BLAST99
Transmembranei143 – 163HelicalSequence analysisAdd BLAST21
Topological domaini164 – 170CytoplasmicSequence analysis7
Transmembranei171 – 191HelicalSequence analysisAdd BLAST21
Topological domaini192 – 196PeriplasmicSequence analysis5
Transmembranei197 – 217HelicalSequence analysisAdd BLAST21
Topological domaini218 – 247CytoplasmicSequence analysisAdd BLAST30
Transmembranei248 – 270HelicalSequence analysisAdd BLAST23
Topological domaini271 – 280PeriplasmicSequence analysis10
Transmembranei281 – 301HelicalSequence analysisAdd BLAST21
Topological domaini302 – 323CytoplasmicSequence analysisAdd BLAST22

GO - Cellular componenti

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, 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

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Disruption of both secD and SecF confers cold-sensitive growth (strain secD1(Cs)).1 Publication

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>Mutagenesisi213D → M: Abolishes protein translocation. 1 Publication1
Mutagenesisi247R → M: Abolishes protein translocation. 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 '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_00000959761 – 323Protein translocase subunit SecFAdd BLAST323

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P0AG93

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

More...
PaxDbi
P0AG93

PRoteomics IDEntifications database

More...
PRIDEi
P0AG93

<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

Part of the prokaryotic protein translocation apparatus which is comprised of SecA, SecB, SecD, SecE, SecF, SecG and SecY. The SecDF-YidC-YajC translocase forms a supercomplex with SecYEG, called the holo-translocon (HTL) (PubMed:27435098). The stoichiometry of the super complex may be SecYEG:YidC:SecDF 4:3:1, YajC is in the reconstituted complex (with SecDF) but as no antibody is available it could not be quantified (PubMed:27435098).

1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
4263101, 312 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...
ComplexPortali
CPX-1095, Holo-translocon SecYEG-SecDF-YajC-YidC complex

STRING: functional protein association networks

More...
STRINGi
511145.b0409

<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
P0AG93

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
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 information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the SecD/SecF family. SecF subfamily.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
COG0341, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_050012_1_0_6

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P0AG93

KEGG Orthology (KO)

More...
KOi
K03074

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P0AG93

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_01464_B, SecF_B, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR022813, SecD/SecF_arch_bac
IPR022645, SecD/SecF_bac
IPR022646, SecD/SecF_CS
IPR005665, SecF_bac

The PANTHER Classification System

More...
PANTHERi
PTHR30081, PTHR30081, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF07549, Sec_GG, 1 hit
PF02355, SecD_SecF, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01755, SECFTRNLCASE

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00916, 2A0604s01, 1 hit
TIGR00966, 3a0501s07, 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.

P0AG93-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAQEYTVEQL NHGRKVYDFM RWDYWAFGIS GLLLIAAIVI MGVRGFNWGL
60 70 80 90 100
DFTGGTVIEI TLEKPAEIDV MRDALQKAGF EEPMLQNFGS SHDIMVRMPP
110 120 130 140 150
AEGETGGQVL GSQVLKVINE STNQNAAVKR IEFVGPSVGA DLAQTGAMAL
160 170 180 190 200
MAALLSILVY VGFRFEWRLA AGVVIALAHD VIITLGILSL FHIEIDLTIV
210 220 230 240 250
ASLMSVIGYS LNDSIVVSDR IRENFRKIRR GTPYEIFNVS LTQTLHRTLI
260 270 280 290 300
TSGTTLMVIL MLYLFGGPVL EGFSLTMLIG VSIGTASSIY VASALALKLG
310 320
MKREHMLQQK VEKEGADQPS ILP
Length:323
Mass (Da):35,382
Last modified:December 20, 2005 - 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:i9662196085448643
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAB40165 differs from that shown. Reason: Erroneous initiation. Extended N-terminus.Curated

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X56175 Genomic DNA Translation: CAA39635.1
U82664 Genomic DNA Translation: AAB40165.1 Different initiation.
U00096 Genomic DNA Translation: AAC73512.1
AP009048 Genomic DNA Translation: BAE76189.1

Protein sequence database of the Protein Information Resource

More...
PIRi
JQ0697

NCBI Reference Sequences

More...
RefSeqi
NP_414943.1, NC_000913.3
WP_000046637.1, NZ_STEB01000007.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC73512; AAC73512; b0409
BAE76189; BAE76189; BAE76189

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
52075748
949120

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW0399
eco:b0409

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.1868

<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
X56175 Genomic DNA Translation: CAA39635.1
U82664 Genomic DNA Translation: AAB40165.1 Different initiation.
U00096 Genomic DNA Translation: AAC73512.1
AP009048 Genomic DNA Translation: BAE76189.1
PIRiJQ0697
RefSeqiNP_414943.1, NC_000913.3
WP_000046637.1, NZ_STEB01000007.1

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
5MG3electron microscopy14.00F1-323[»]
SMRiP0AG93
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4263101, 312 interactors
ComplexPortaliCPX-1095, Holo-translocon SecYEG-SecDF-YajC-YidC complex
STRINGi511145.b0409

Protein family/group databases

TCDBi2.A.6.4.1, the resistance-nodulation-cell division (rnd) superfamily

Proteomic databases

jPOSTiP0AG93
PaxDbiP0AG93
PRIDEiP0AG93

Genome annotation databases

EnsemblBacteriaiAAC73512; AAC73512; b0409
BAE76189; BAE76189; BAE76189
GeneIDi52075748
949120
KEGGiecj:JW0399
eco:b0409
PATRICifig|1411691.4.peg.1868

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...
EchoBASEi
EB0933

Phylogenomic databases

eggNOGiCOG0341, Bacteria
HOGENOMiCLU_050012_1_0_6
InParanoidiP0AG93
KOiK03074
PhylomeDBiP0AG93

Enzyme and pathway databases

BioCyciEcoCyc:SECF
MetaCyc:SECF

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P0AG93

Family and domain databases

HAMAPiMF_01464_B, SecF_B, 1 hit
InterProiView protein in InterPro
IPR022813, SecD/SecF_arch_bac
IPR022645, SecD/SecF_bac
IPR022646, SecD/SecF_CS
IPR005665, SecF_bac
PANTHERiPTHR30081, PTHR30081, 1 hit
PfamiView protein in Pfam
PF07549, Sec_GG, 1 hit
PF02355, SecD_SecF, 1 hit
PRINTSiPR01755, SECFTRNLCASE
TIGRFAMsiTIGR00916, 2A0604s01, 1 hit
TIGR00966, 3a0501s07, 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 nameiSECF_ECOLI
<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: P0AG93
Secondary accession number(s): P19674, P77113, Q2MC17
<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 20, 2005
Last sequence update: December 20, 2005
Last modified: October 7, 2020
This is version 114 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 programProkaryotic 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, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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