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Protein

Flavodoxin

Gene

isiB

Organism
Nostoc sp. (strain ATCC 29151 / PCC 7119) (Anabaena sp.)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

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

Cofactori

GO - Molecular functioni

  • electron carrier activity Source: UniProtKB
  • FMN binding Source: UniProtKB

GO - Biological processi

  • cellular response to iron ion starvation Source: UniProtKB
  • oxidation-reduction process Source: UniProtKB
Complete GO annotation...

Keywords - Biological processi

Electron transport, Transport

Keywords - Ligandi

Flavoprotein, FMN

Names & Taxonomyi

Protein namesi
Recommended name:
Flavodoxin
Gene namesi
Name:isiB
OrganismiNostoc sp. (strain ATCC 29151 / PCC 7119) (Anabaena sp.)
Taxonomic identifieri1168 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesNostocaceaeNostoc

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00001716002 – 170FlavodoxinAdd BLAST169

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
FDXRP081653EBI-593907,EBI-593948From a different organism.
petHP218905EBI-593907,EBI-593915

Protein-protein interaction databases

IntActiP0A3E0. 3 interactors.

Structurei

Secondary structure

1170
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi4 – 9Combined sources6
Beta strandi12 – 14Combined sources3
Helixi15 – 27Combined sources13
Turni29 – 31Combined sources3
Beta strandi32 – 36Combined sources5
Turni37 – 39Combined sources3
Helixi42 – 47Combined sources6
Beta strandi49 – 58Combined sources10
Turni59 – 61Combined sources3
Beta strandi62 – 64Combined sources3
Helixi65 – 71Combined sources7
Helixi72 – 76Combined sources5
Beta strandi83 – 89Combined sources7
Turni92 – 97Combined sources6
Helixi101 – 112Combined sources12
Beta strandi114 – 118Combined sources5
Beta strandi138 – 144Combined sources7
Turni146 – 148Combined sources3
Helixi150 – 152Combined sources3
Helixi153 – 168Combined sources16

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1DX9X-ray2.05A/B/C/D2-170[»]
1FTGX-ray2.00A3-170[»]
1OBOX-ray1.20A/B3-170[»]
1OBVX-ray2.10A3-170[»]
1QHEX-ray2.00A3-170[»]
2KQUNMR-A3-170[»]
2V5UX-ray1.99A/B2-170[»]
2V5VX-ray1.88A/B2-170[»]
3ESXX-ray2.31A/B2-170[»]
3ESYX-ray2.39A/B/C/D2-170[»]
3ESZX-ray1.94A/B2-170[»]
ProteinModelPortaliP0A3E0.
SMRiP0A3E0.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0A3E0.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini5 – 165Flavodoxin-likePROSITE-ProRule annotationAdd BLAST161

Sequence similaritiesi

Belongs to the flavodoxin family.Curated
Contains 1 flavodoxin-like domain.PROSITE-ProRule annotation

Family and domain databases

Gene3Di3.40.50.360. 1 hit.
InterProiIPR008254. Flavodoxin/NO_synth.
IPR001226. Flavodoxin_CS.
IPR010086. Flavodoxin_lc.
IPR029039. Flavoprotein-like_dom.
[Graphical view]
PfamiPF00258. Flavodoxin_1. 1 hit.
[Graphical view]
PIRSFiPIRSF038996. FldA. 1 hit.
SUPFAMiSSF52218. SSF52218. 1 hit.
TIGRFAMsiTIGR01752. flav_long. 1 hit.
PROSITEiPS00201. FLAVODOXIN. 1 hit.
PS50902. FLAVODOXIN_LIKE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P0A3E0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSKKIGLFYG TQTGKTESVA EIIRDEFGND VVTLHDVSQA EVTDLNDYQY
60 70 80 90 100
LIIGCPTWNI GELQSDWEGL YSELDDVDFN GKLVAYFGTG DQIGYADNFQ
110 120 130 140 150
DAIGILEEKI SQRGGKTVGY WSTDGYDFND SKALRNGKFV GLALDEDNQS
160 170
DLTDDRIKSW VAQLKSEFGL
Length:170
Mass (Da):18,964
Last modified:January 23, 2007 - v2
Checksum:i069E8DEBA9E33302
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
S68006 Genomic DNA. Translation: AAB20462.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
S68006 Genomic DNA. Translation: AAB20462.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1DX9X-ray2.05A/B/C/D2-170[»]
1FTGX-ray2.00A3-170[»]
1OBOX-ray1.20A/B3-170[»]
1OBVX-ray2.10A3-170[»]
1QHEX-ray2.00A3-170[»]
2KQUNMR-A3-170[»]
2V5UX-ray1.99A/B2-170[»]
2V5VX-ray1.88A/B2-170[»]
3ESXX-ray2.31A/B2-170[»]
3ESYX-ray2.39A/B/C/D2-170[»]
3ESZX-ray1.94A/B2-170[»]
ProteinModelPortaliP0A3E0.
SMRiP0A3E0.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP0A3E0. 3 interactors.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP0A3E0.

Family and domain databases

Gene3Di3.40.50.360. 1 hit.
InterProiIPR008254. Flavodoxin/NO_synth.
IPR001226. Flavodoxin_CS.
IPR010086. Flavodoxin_lc.
IPR029039. Flavoprotein-like_dom.
[Graphical view]
PfamiPF00258. Flavodoxin_1. 1 hit.
[Graphical view]
PIRSFiPIRSF038996. FldA. 1 hit.
SUPFAMiSSF52218. SSF52218. 1 hit.
TIGRFAMsiTIGR01752. flav_long. 1 hit.
PROSITEiPS00201. FLAVODOXIN. 1 hit.
PS50902. FLAVODOXIN_LIKE. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiFLAV_NOSSO
AccessioniPrimary (citable) accession number: P0A3E0
Secondary accession number(s): P11241
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: January 23, 2007
Last modified: November 2, 2016
This is version 57 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

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

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.