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Protein

Dihydrofolate reductase

Gene

folA

Organism
Buchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Status
Reviewed-Annotation score: -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

Pathwayi: tetrahydrofolate 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)DescriptionActionsGraphical viewLength
Binding sitei28SubstrateBy similarity1
Binding sitei59SubstrateBy similarity1
Binding sitei115SubstrateBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi7 – 8NADPBy similarity2
Nucleotide bindingi15 – 20NADPBy similarity6
Nucleotide bindingi44 – 47NADPBy similarity4
Nucleotide bindingi64 – 66NADPBy similarity3
Nucleotide bindingi96 – 101NADPBy similarity6

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductase
Biological processOne-carbon metabolism
LigandNADP

Enzyme and pathway databases

BioCyciBAPH198804:G1FZU-148-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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesErwiniaceaeBuchnera
Proteomesi
  • UP000000416 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001863841 – 161Dihydrofolate reductaseAdd BLAST161

Interactioni

Protein-protein interaction databases

STRINGi198804.BUsg136

Structurei

3D structure databases

ProteinModelPortaliQ8K9Z8
SMRiQ8K9Z8
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini2 – 161DHFRPROSITE-ProRule annotationAdd BLAST160

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni6 – 8Substrate bindingBy similarity3

Sequence similaritiesi

Belongs to the dihydrofolate reductase family.Curated

Phylogenomic databases

eggNOGiENOG4108YYV Bacteria
COG0262 LUCA
KOiK00287
OMAiRDNQLPW
OrthoDBiPOG091H01KY

Family and domain databases

CDDicd00209 DHFR, 1 hit
Gene3Di3.40.430.10, 1 hit
InterProiView protein in InterPro
IPR012259 DHFR
IPR024072 DHFR-like_dom_sf
IPR017925 DHFR_CS
IPR001796 DHFR_dom
PANTHERiPTHR22778:SF16 PTHR22778:SF16, 1 hit
PfamiView protein in Pfam
PF00186 DHFR_1, 1 hit
PIRSFiPIRSF000194 DHFR, 1 hit
SUPFAMiSSF53597 SSF53597, 1 hit
PROSITEiView protein in PROSITE
PS00075 DHFR_1, 1 hit
PS51330 DHFR_2, 1 hit

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:BUsg_136

Similar proteinsi

Entry informationi

Entry nameiDYR_BUCAP
AccessioniPrimary (citable) accession number: Q8K9Z8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 8, 2002
Last sequence update: October 1, 2002
Last modified: March 28, 2018
This is version 95 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome
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Main funding by: National Institutes of Health