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Protein

Dihydrofolate reductase

Gene

folA

Organism
Buchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis (By similarity).By similarity

Catalytic activityi

5,6,7,8-tetrahydrofolate + NADP+ = 7,8-dihydrofolate + NADPH.PROSITE-ProRule annotation

Pathway:itetrahydrofolate biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes 5,6,7,8-tetrahydrofolate from 7,8-dihydrofolate.
Proteins known to be involved in this subpathway in this organism are:
  1. Dihydrofolate reductase (folA)
This subpathway is part of the pathway tetrahydrofolate biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5,6,7,8-tetrahydrofolate from 7,8-dihydrofolate, the pathway tetrahydrofolate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei28 – 281SubstrateBy similarity
Binding sitei59 – 591SubstrateBy similarity
Binding sitei115 – 1151SubstrateBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi7 – 82NADPBy similarity
Nucleotide bindingi15 – 206NADPBy similarity
Nucleotide bindingi44 – 474NADPBy similarity
Nucleotide bindingi64 – 663NADPBy similarity
Nucleotide bindingi96 – 1016NADPBy similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

One-carbon metabolism

Keywords - Ligandi

NADP

Enzyme and pathway databases

BioCyciBAPH198804:GHMG-146-MONOMER.
UniPathwayiUPA00077; UER00158.

Names & Taxonomyi

Protein namesi
Recommended name:
Dihydrofolate reductase (EC:1.5.1.3)
Gene namesi
Name:folA
Ordered Locus Names:BUsg_136
OrganismiBuchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Taxonomic identifieri198804 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeBuchnera
ProteomesiUP000000416 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 161161Dihydrofolate reductasePRO_0000186384Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi198804.BUsg136.

Structurei

3D structure databases

ProteinModelPortaliQ8K9Z8.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini2 – 161160DHFRPROSITE-ProRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni6 – 83Substrate bindingBy similarity

Sequence similaritiesi

Belongs to the dihydrofolate reductase family.Curated
Contains 1 DHFR (dihydrofolate reductase) domain.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG0262.
KOiK00287.
OMAiDTQFPDW.
OrthoDBiEOG6KT2V2.

Family and domain databases

Gene3Di3.40.430.10. 1 hit.
InterProiIPR012259. DHFR.
IPR024072. DHFR-like_dom.
IPR017925. DHFR_CS.
IPR001796. DHFR_dom.
[Graphical view]
PfamiPF00186. DHFR_1. 1 hit.
[Graphical view]
PIRSFiPIRSF000194. DHFR. 1 hit.
PRINTSiPR00070. DHFR.
SUPFAMiSSF53597. SSF53597. 1 hit.
PROSITEiPS00075. DHFR_1. 1 hit.
PS51330. DHFR_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8K9Z8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKISLISAIS NNLVIGHNNK IPWYLPEDLK WFKKNTIHKD IIMGRLTWES
60 70 80 90 100
ILNHPLPMRK NIVISHKEII HKDVIWANSI SKALLSTTYD KEIMVIGGSK
110 120 130 140 150
IYKQMLFYAT KLYLTHVDFN GIGDTYFPQY KSCKFWKTIF RKQHFKDKNN
160
PYNFCFEILS R
Length:161
Mass (Da):19,113
Last modified:October 1, 2002 - v1
Checksum:i1E86675D87DC1B4D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67704.1.
RefSeqiWP_011053671.1. NC_004061.1.

Genome annotation databases

EnsemblBacteriaiAAM67704; AAM67704; BUsg_136.
KEGGibas:BUsg136.
PATRICi21247053. VBIBucAph100086_0140.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67704.1.
RefSeqiWP_011053671.1. NC_004061.1.

3D structure databases

ProteinModelPortaliQ8K9Z8.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi198804.BUsg136.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAM67704; AAM67704; BUsg_136.
KEGGibas:BUsg136.
PATRICi21247053. VBIBucAph100086_0140.

Phylogenomic databases

eggNOGiCOG0262.
KOiK00287.
OMAiDTQFPDW.
OrthoDBiEOG6KT2V2.

Enzyme and pathway databases

UniPathwayiUPA00077; UER00158.
BioCyciBAPH198804:GHMG-146-MONOMER.

Family and domain databases

Gene3Di3.40.430.10. 1 hit.
InterProiIPR012259. DHFR.
IPR024072. DHFR-like_dom.
IPR017925. DHFR_CS.
IPR001796. DHFR_dom.
[Graphical view]
PfamiPF00186. DHFR_1. 1 hit.
[Graphical view]
PIRSFiPIRSF000194. DHFR. 1 hit.
PRINTSiPR00070. DHFR.
SUPFAMiSSF53597. SSF53597. 1 hit.
PROSITEiPS00075. DHFR_1. 1 hit.
PS51330. DHFR_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Sg.

Entry informationi

Entry nameiDYR_BUCAP
AccessioniPrimary (citable) accession number: Q8K9Z8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 8, 2002
Last sequence update: October 1, 2002
Last modified: July 22, 2015
This is version 86 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Buchnera aphidicola (subsp. Schizaphis graminum)
    Buchnera aphidicola (subsp. Schizaphis graminum): entries and gene names
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.