Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Due to a server migration, the UniProt 'ID mapping', 'Peptide search' and 'community bibliography submission' tools will not be available on the 19th April 2021 during the morning (EST).

UniProtKB - P0ABY4 (FLAW_ECOLI)

Entry version 102 (07 Apr 2021)
Sequence version 1 (25 Oct 2005)
Previous versions | rss
Add a publicationFeedback
Protein

Flavodoxin 2

Gene

fldB

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

Annotation score:2 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

Low-potential electron donor to a number of redox enzymes.Curated

<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

FMN

<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

Complete GO annotation on QuickGO ...

<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 processElectron transport, Transport
LigandFlavoprotein, FMN

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:FLAVODOXIN2-MONOMER
MetaCyc:FLAVODOXIN2-MONOMER

<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:
Flavodoxin 2
<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:fldB
Ordered Locus Names:b2895, JW2863
<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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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 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_00001716261 – 173Flavodoxin 2Add BLAST173

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0ABY4

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

More...PaxDbi		P0ABY4

PRoteomics IDEntifications database

More...PRIDEi		P0ABY4

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4262340, 10 interactors

Protein interaction database and analysis system

More...IntActi		P0ABY4, 8 interactors

STRING: functional protein association networks

More...STRINGi		511145.b2895

<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

1173
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...SMRi		P0ABY4

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini3 – 165Flavodoxin-likePROSITE-ProRule annotationAdd BLAST163

<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 flavodoxin family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0716, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_051402_1_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0ABY4

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0ABY4

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.40.50.360, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR008254, Flavodoxin/NO_synth
IPR001226, Flavodoxin_CS
IPR010086, Flavodoxin_lc
IPR029039, Flavoprotein-like_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00258, Flavodoxin_1, 1 hit

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF038996, FldA, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52218, SSF52218, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01752, flav_long, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00201, FLAVODOXIN, 1 hit
PS50902, FLAVODOXIN_LIKE, 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.

P0ABY4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNMGLFYGSS TCYTEMAAEK IRDIIGPELV TLHNLKDDSP KLMEQYDVLI 
        60         70         80         90        100
LGIPTWDFGE IQEDWEAVWD QLDDLNLEGK IVALYGLGDQ LGYGEWFLDA 
       110        120        130        140        150
LGMLHDKLST KGVKFVGYWP TEGYEFTSPK PVIADGQLFV GLALDETNQY 
       160        170 
DLSDERIQSW CEQILNEMAE HYA
Length:173
Mass (Da):19,700
Last modified:October 25, 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:i89338715D106A68C
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 conflicti115F → C in CAA88140 (Ref. 1) Curated1

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
Z48060 Genomic DNA Translation: CAA88140.1
U28375 Genomic DNA Translation: AAA83076.1
U00096 Genomic DNA Translation: AAC75933.1
AP009048 Genomic DNA Translation: BAE76960.1

Protein sequence database of the Protein Information Resource

More...PIRi		G65073

NCBI Reference Sequences

More...RefSeqi		NP_417371.1, NC_000913.3
WP_001055874.1, NZ_STEB01000001.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC75933; AAC75933; b2895
BAE76960; BAE76960; BAE76960

Database of genes from NCBI RefSeq genomes

More...GeneIDi		58348355
947361

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW2863
eco:b2895

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.3838

<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
Z48060 Genomic DNA Translation: CAA88140.1
U28375 Genomic DNA Translation: AAA83076.1
U00096 Genomic DNA Translation: AAC75933.1
AP009048 Genomic DNA Translation: BAE76960.1
PIRiG65073
RefSeqiNP_417371.1, NC_000913.3
WP_001055874.1, NZ_STEB01000001.1

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
2MT9NMR-A1-173[»]
2MTBNMR-A1-173[»]
SMRiP0ABY4
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4262340, 10 interactors
IntActiP0ABY4, 8 interactors
STRINGi511145.b2895

Proteomic databases

jPOSTiP0ABY4
PaxDbiP0ABY4
PRIDEiP0ABY4

Genome annotation databases

EnsemblBacteriaiAAC75933; AAC75933; b2895
BAE76960; BAE76960; BAE76960
GeneIDi58348355
947361
KEGGiecj:JW2863
eco:b2895
PATRICifig|1411691.4.peg.3838

Organism-specific databases

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

More...EchoBASEi		EB2559

Phylogenomic databases

eggNOGiCOG0716, Bacteria
HOGENOMiCLU_051402_1_0_6
InParanoidiP0ABY4
PhylomeDBiP0ABY4

Enzyme and pathway databases

BioCyciEcoCyc:FLAVODOXIN2-MONOMER
MetaCyc:FLAVODOXIN2-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P0ABY4

Family and domain databases

Gene3Di3.40.50.360, 1 hit
InterProiView protein in InterPro
IPR008254, Flavodoxin/NO_synth
IPR001226, Flavodoxin_CS
IPR010086, Flavodoxin_lc
IPR029039, Flavoprotein-like_sf
PfamiView protein in Pfam
PF00258, Flavodoxin_1, 1 hit
PIRSFiPIRSF038996, FldA, 1 hit
SUPFAMiSSF52218, SSF52218, 1 hit
TIGRFAMsiTIGR01752, flav_long, 1 hit
PROSITEiView protein in PROSITE
PS00201, FLAVODOXIN, 1 hit
PS50902, FLAVODOXIN_LIKE, 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 nameiFLAW_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: P0ABY4
Secondary accession number(s): P41050, Q2M9U6
<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: October 25, 2005
Last sequence update: October 25, 2005
Last modified: April 7, 2021
This is version 102 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. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again