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Q9AQ50

- FNR_KLEOX

UniProt

Q9AQ50 - FNR_KLEOX

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Protein
Fumarate nitrate reduction regulatory protein
Gene
fnr
Organism
Klebsiella oxytoca
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Global transcription factor that controls the expression of over 100 target genes in response to anoxia. It facilitates the adaptation to anaerobic growth conditions by regulating the expression of gene products that are involved in anaerobic energy metabolism. When the terminal electron acceptor, O2, is no longer available, it represses the synthesis of enzymes involved in aerobic respiration and increases the synthesis of enzymes required for anaerobic respiration By similarity.

Cofactori

Binds 1 4Fe-4S cluster per subunit.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi20 – 201Iron-sulfur (4Fe-4S) Reviewed prediction
Metal bindingi23 – 231Iron-sulfur (4Fe-4S) Reviewed prediction
Metal bindingi29 – 291Iron-sulfur (4Fe-4S) Reviewed prediction
Metal bindingi122 – 1221Iron-sulfur (4Fe-4S) Reviewed prediction

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
DNA bindingi197 – 21620H-T-H motif By similarity
Add
BLAST

GO - Molecular functioni

  1. 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  2. DNA binding Source: UniProtKB-KW
  3. metal ion binding Source: UniProtKB-KW
  4. sequence-specific DNA binding transcription factor activity Source: InterPro
Complete GO annotation...

GO - Biological processi

  1. transcription, DNA-templated Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Activator, Repressor

Keywords - Biological processi

Transcription, Transcription regulation

Keywords - Ligandi

4Fe-4S, DNA-binding, Iron, Iron-sulfur, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Fumarate nitrate reduction regulatory protein
Gene namesi
Name:fnr
OrganismiKlebsiella oxytoca
Taxonomic identifieri571 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeKlebsiella

Subcellular locationi

Cytoplasm Inferred

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 250250Fumarate nitrate reduction regulatory protein
PRO_0000100164Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.

Structurei

3D structure databases

ProteinModelPortaliQ9AQ50.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini164 – 23774HTH crp-type
Add
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni20 – 2910Essential for the oxygen-regulated activity By similarity
Regioni47 – 504Activating region 2A Reviewed prediction
Regioni60 – 612Activating region 3A Reviewed prediction
Regioni71 – 755Activating region 1A Reviewed prediction
Regioni81 – 811Activating region 3B Reviewed prediction
Regioni85 – 873Activating region 3C Reviewed prediction
Regioni112 – 1121Activating region 3D Reviewed prediction
Regioni116 – 1216Activating region 1B Reviewed prediction
Regioni123 – 1242Activating region 2B Reviewed prediction
Regioni127 – 1282Activating region 2C Reviewed prediction
Regioni140 – 15920Dimerization Reviewed prediction
Add
BLAST
Regioni181 – 19111Activating region 1C Reviewed prediction
Add
BLAST

Sequence similaritiesi

Family and domain databases

Gene3Di1.10.10.10. 1 hit.
2.60.120.10. 1 hit.
InterProiIPR018490. cNMP-bd-like.
IPR000595. cNMP-bd_dom.
IPR012318. HTH_CRP_2.
IPR014710. RmlC-like_jellyroll.
IPR001808. Tscrpt_reg_HTH_Crp.
IPR018335. Tscrpt_reg_HTH_Crp-type_CS.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view]
PfamiPF00027. cNMP_binding. 1 hit.
PF00325. Crp. 1 hit.
[Graphical view]
PRINTSiPR00034. HTHCRP.
SMARTiSM00100. cNMP. 1 hit.
SM00419. HTH_CRP. 1 hit.
[Graphical view]
SUPFAMiSSF51206. SSF51206. 1 hit.
PROSITEiPS50042. CNMP_BINDING_3. 1 hit.
PS00042. HTH_CRP_1. 1 hit.
PS51063. HTH_CRP_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q9AQ50-1 [UniParc]FASTAAdd to Basket

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MIPEKRIIRR IQSGGCAIHC QDCSISQLCI PFTLNEHELD QLDNIIERKK    50
PIQKGQTLFK AGDELKSLYA IRSGTIKSYT ITEQGDEQIT GFHLAGDLVG 100
FDAIGTGHHP SFAQALETSM VCEIPFETLD DLSGKMPNLR QQMMRLMSGE 150
IKGDQDMILL LSKKNAEERL AAFIYNLSRR FAQRGFSPRE FRLTMTRGDI 200
GNYLGLTVET ISRLLGRFQK SGMLAVKGKY ITIENSDLLA QLAGQARNVA 250
Length:250
Mass (Da):27,957
Last modified:June 1, 2001 - v1
Checksum:i46879DA2D531D82A
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF220669 Genomic DNA. Translation: AAF73870.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF220669 Genomic DNA. Translation: AAF73870.1 .

3D structure databases

ProteinModelPortali Q9AQ50.
ModBasei Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 1.10.10.10. 1 hit.
2.60.120.10. 1 hit.
InterProi IPR018490. cNMP-bd-like.
IPR000595. cNMP-bd_dom.
IPR012318. HTH_CRP_2.
IPR014710. RmlC-like_jellyroll.
IPR001808. Tscrpt_reg_HTH_Crp.
IPR018335. Tscrpt_reg_HTH_Crp-type_CS.
IPR011991. WHTH_DNA-bd_dom.
[Graphical view ]
Pfami PF00027. cNMP_binding. 1 hit.
PF00325. Crp. 1 hit.
[Graphical view ]
PRINTSi PR00034. HTHCRP.
SMARTi SM00100. cNMP. 1 hit.
SM00419. HTH_CRP. 1 hit.
[Graphical view ]
SUPFAMi SSF51206. SSF51206. 1 hit.
PROSITEi PS50042. CNMP_BINDING_3. 1 hit.
PS00042. HTH_CRP_1. 1 hit.
PS51063. HTH_CRP_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Cloning, sequencing and characterization of Fnr from Klebsiella pneumoniae."
    Grabbe R., Kuhn A., Schmitz R.A.
    Antonie Van Leeuwenhoek 79:319-326(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: M5a1.

Entry informationi

Entry nameiFNR_KLEOX
AccessioniPrimary (citable) accession number: Q9AQ50
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 30, 2002
Last sequence update: June 1, 2001
Last modified: February 19, 2014
This is version 64 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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