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Entry version 98 (08 May 2019)
Sequence version 1 (01 Mar 2002)
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Protein

Putative diflavin flavoprotein A 3

Gene

dfa3

Organism
Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
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>
-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

Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity).By similarity

Miscellaneous

By homology with NorV in E.coli, could be involved in nitric oxide detoxification.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

Fe cationNote: Binds 2 iron ions per subunit.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi92Iron 1By similarity1
Metal bindingi94Iron 1By similarity1
Metal bindingi96Iron 2By similarity1
Metal bindingi159Iron 1By similarity1
Metal bindingi178Iron 1By similarity1
Metal bindingi178Iron 2By similarity1
Metal bindingi236Iron 2By similarity1

<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

<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 functionOxidoreductase
Biological processElectron transport, Transport
LigandIron, Metal-binding

<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_and_taxonomy_section">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:
Putative diflavin flavoprotein A 3 (EC:1.-.-.-)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:dfa3
Ordered Locus Names:all3895
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiNostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri103690 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiBacteriaCyanobacteriaNostocalesNostocaceaeNostoc
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000002483 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00002167951 – 574Putative diflavin flavoprotein A 3Add BLAST574

<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

STRING: functional protein association networks

More...
STRINGi
103690.17133029

<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

1574
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
Q8YQD8

Database of comparative protein structure models

More...
ModBasei
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q8YQD8

<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_and_domains_section">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>Domaini265 – 409Flavodoxin-likePROSITE-ProRule annotationAdd BLAST145

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni43 – 236Zinc metallo-hydrolaseAdd BLAST194
Regioni410 – 574Flavodoxin-reductase-likeAdd BLAST165

<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

In the N-terminal section; belongs to the zinc metallo-hydrolase group 3 family.Curated
In the C-terminal section; belongs to the flavodoxin reductase family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105CNW Bacteria
COG0426 LUCA
COG1853 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000232413

Identification of Orthologs from Complete Genome Data

More...
OMAi
AFGLHYC

Database of Orthologous Groups

More...
OrthoDBi
1149616at2

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.30.110.10, 1 hit
3.40.50.360, 1 hit
3.60.15.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002563 Flavin_Rdtase-like_dom
IPR008254 Flavodoxin/NO_synth
IPR029039 Flavoprotein-like_sf
IPR001279 Metallo-B-lactamas
IPR036866 RibonucZ/Hydroxyglut_hydro
IPR012349 Split_barrel_FMN-bd

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01613 Flavin_Reduct, 1 hit
PF00753 Lactamase_B, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00903 Flavin_Reduct, 1 hit
SM00849 Lactamase_B, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52218 SSF52218, 1 hit
SSF56281 SSF56281, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

Q8YQD8-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVALTEKTEK RLTIQTADIA QDTTAIRSLD WERDRFDIEF GLQNGTTYNS
60 70 80 90 100
FLIRGEQIAL VDTSHEKFRQ LYFDTLTGLI NPTEINYLII SHTEPDHSGL
110 120 130 140 150
VKDLLQMAPE ITVVGSKVAI QFLEDLVHQP FKRKIVKNGD RLDLGNGHEF
160 170 180 190 200
EFVIAPNLHW PDTIFSFDHK TQTLYTCDAF GMHYCSDIVF DEDLKTIEPD
210 220 230 240 250
FHYYYDCLMG PNARSVLSAL KRMGELPSVK MIATGHGPLL YHNVEELTGR
260 270 280 290 300
YRTWSQNQTK AETSIGVFYV SEYGYSDRLA QAIINGITKT GVGVDVVDLG
310 320 330 340 350
AAVDLQELRE LVGRCTGLVI GMSPAASAAS IQGALSTILG SVNEKQAVGI
360 370 380 390 400
FETGGGDDEP IDPLLSKFRN LGLTTAFPAI RIKQTPTENT YKLCEEAGTD
410 420 430 440 450
LGQWVTRDRS IKAMKSLGAD LDKALGRLSG GLYIITAKKG DVSSAMLASW
460 470 480 490 500
VNQASFKPLG FSIAVAKDRA IESLMQVGDR FVLNVLEEGN YQPLMRHFLK
510 520 530 540 550
RFAPGADRFE GVKTQPAENG APILGDALAY MECEVVSRMD CGDHWAVYST
560 570
VYAGRVSKSE ALTAVHHRKV GNHY
Length:574
Mass (Da):63,513
Last modified:March 1, 2002 - 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:iF2BF5554AA332C23
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
BA000019 Genomic DNA Translation: BAB75594.1

Protein sequence database of the Protein Information Resource

More...
PIRi
AH2292

NCBI Reference Sequences

More...
RefSeqi
WP_010998036.1, NZ_RSCN01000011.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
BAB75594; BAB75594; BAB75594

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ana:all3895

<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
BA000019 Genomic DNA Translation: BAB75594.1
PIRiAH2292
RefSeqiWP_010998036.1, NZ_RSCN01000011.1

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
2KLBNMR-A264-409[»]
3FNIX-ray2.30A259-409[»]
SMRiQ8YQD8
ModBaseiSearch...

Protein-protein interaction databases

STRINGi103690.17133029

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAB75594; BAB75594; BAB75594
KEGGiana:all3895

Phylogenomic databases

eggNOGiENOG4105CNW Bacteria
COG0426 LUCA
COG1853 LUCA
HOGENOMiHOG000232413
OMAiAFGLHYC
OrthoDBi1149616at2

Miscellaneous databases

EvolutionaryTraceiQ8YQD8

Family and domain databases

Gene3Di2.30.110.10, 1 hit
3.40.50.360, 1 hit
3.60.15.10, 1 hit
InterProiView protein in InterPro
IPR002563 Flavin_Rdtase-like_dom
IPR008254 Flavodoxin/NO_synth
IPR029039 Flavoprotein-like_sf
IPR001279 Metallo-B-lactamas
IPR036866 RibonucZ/Hydroxyglut_hydro
IPR012349 Split_barrel_FMN-bd
PfamiView protein in Pfam
PF01613 Flavin_Reduct, 1 hit
PF00753 Lactamase_B, 1 hit
SMARTiView protein in SMART
SM00903 Flavin_Reduct, 1 hit
SM00849 Lactamase_B, 1 hit
SUPFAMiSSF52218 SSF52218, 1 hit
SSF56281 SSF56281, 1 hit
PROSITEiView protein in PROSITE
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 nameiDFA3_NOSS1
<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: Q8YQD8
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 25, 2003
Last sequence update: March 1, 2002
Last modified: May 8, 2019
This is version 98 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, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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