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Reviewed, UniProtKB/Swiss-Prot P42850 (PPSA_PYRFU)

Last modified November 3, 2009. Version 70. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Phosphoenolpyruvate synthase
      Short name=PEP synthase
    EC=2.7.9.2
Alternative name(s):
    Pyruvate, water dikinase
Gene names
Name: ppsA
Ordered Locus Names: PF0043
OrganismPyrococcus furiosus [Complete proteome] [HAMAP]
Taxonomic identifier2261 [NCBI]
Taxonomic lineageArchaeaEuryarchaeotaThermococciThermococcalesThermococcaceaePyrococcus

Protein attributes

Sequence length817 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Catalyzes the phosphorylation of pyruvate to phosphoenolpyruvate. Ref.4

Catalytic activity

ATP + pyruvate + H2O = AMP + phosphoenolpyruvate + phosphate. Ref.4

Cofactor

Magnesium.

Pathway

Carbohydrate biosynthesis; gluconeogenesis.

Subunit structure

Homooctamer. Ref.4

Domain

The N-terminal domain contains the ATP/Pi binding site, the central domain the pyrophosphate/phosphate carrier histidine, and the C-terminal domain the pyruvate binding site By similarity.

Miscellaneous

The reaction takes place in three steps, mediated by a phosphocarrier histidine residue located on the surface of the central domain. The two first partial reactions are catalyzed at an active site located on the N-terminal domain, and the third partial reaction is catalyzed at an active site located on the C-terminal domain. For catalytic turnover, the central domain swivels from the concave surface of the N-terminal domain to that of the C-terminal domain By similarity.

Sequence similarities

Belongs to the PEP-utilizing enzyme family.

Biophysicochemical properties

Kinetic parameters:

KM=0.11 mM for pyruvate

KM=0.40 mM for phosphoenolpyruvate

KM=0.39 mM for ATP

KM=1.00 mM for AMP

KM=38.4 mM for phosphate

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed Ref.4
Chain2 – 817816Phosphoenolpyruvate synthase
PRO_0000147044

Regions

Compositional bias809 – 8157Poly-Glu

Sites

Active site4421Tele-phosphohistidine intermediate By similarity
Active site7561Proton donor By similarity
Metal binding6841Magnesium By similarity
Metal binding7091Magnesium By similarity
Binding site5401Substrate By similarity
Binding site5871Substrate By similarity
Binding site6841Substrate By similarity
Binding site7061Substrate; via carbonyl oxygen By similarity
Binding site7071Substrate; via amide nitrogen By similarity
Binding site7081Substrate By similarity
Binding site7091Substrate; via amide nitrogen By similarity

Experimental info

Sequence conflict81W → G AA sequence Ref.4
Sequence conflict7471K → Q in AAA81512. Ref.1

Sequences

Sequence LengthMass (Da)Tools
P42850-1 [UniParc].

Last modified April 3, 2002. Version 3.
Checksum: DA3A7A3CF13C614F

FASTA81790,485
        10         20         30         40         50         60 
MAYRFIKWFE ELSKNDVPLV GGKGANLGEM TNAGIPVPPG FCVTAEAYKY FVENVKVSKE 

        70         80         90        100        110        120 
DVKRILGEKV NKGTISEVLA QAPDEPRPLQ DWIMDIISKT DVDDSKMLQE NTEAIRTLIK 

       130        140        150        160        170        180 
SLDMPSEIAE EIKQAYKELS QRFGQEEVYV AVRSSATAED LPEASFAGQQ ETYLDVLGAD 

       190        200        210        220        230        240 
DVIDKVKRCW ASLWTARATF YRAKQGFDHS KVYLSAVVQK MVNSEKSGVM FTANPVTNNR 

       250        260        270        280        290        300 
NEIMINASWG LGEAVVSGAV TPDEYIVEKG TWKIKEKVIA KKEVMVIRNP ETGRGTVMVK 

       310        320        330        340        350        360 
VAEYLGPEWV EKQVLTDEQI IEVAKMGQKI EDHYGWPQDI EWAYDKDDGK LYIVQSRPIT 

       370        380        390        400        410        420 
TLKEEATAEE AEEVEEAEVI LKGLGASPGI GAGRVVVIFD ASEIDKVKEG DILVTTMTNP 

       430        440        450        460        470        480 
DMVPAMKRAA AIVTDEGGRT SHAAIVSREL GIPCVVGTKE ATKKLKTGMY VTVDGTRGLV 

       490        500        510        520        530        540 
YKGIVKSLVK KKEEAKAEGG QVVVAGAPLV TGTMVKVNVS MPEVAERAAA TGADGVGLLR 

       550        560        570        580        590        600 
AEHMILSIGQ HPIKFIKEGK EEELVEKLAE GIEKVAAAFY PRPVWYRTLD APTNEFREMP 

       610        620        630        640        650        660 
GGEDEPEERN PMLGWRGIRR GLDQPELLRA EFKAIKKVVE KGYNNIGVML PLVSHPEQIR 

       670        680        690        700        710        720 
EAKRIAREVG LEPHKDVAWG VMIEVPAAAI IIEDLIKEGI DFVSFGTNDL TQYTLAIDRD 

       730        740        750        760        770        780 
NERVAKLYDE THPAVLKLIK HVIKVCKRYG VETSICGQAG SDPKMARILV RLGIDSISAN 

       790        800        810 
PDAVQLIRQV VAQEERKLML EAARKQLFEE EEEEELF 

« Hide

References

« Hide 'large scale' references
[1]"Isolation, sequence and characterization of the maltose-regulated mlrA gene from the hyperthermophilic archaeum Pyrococcus furiosus."
Robinson K.A., Schreier H.J.
Gene 151:173-176(1994) [PubMed: 7828869] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Strain: ATCC 43587 / DSM 3638 / JCM 8422 / Vc1.
[2]"Cloning and sequencing of a gene from the archaeon Pyrococcus furiosus with high homology to a gene encoding phosphoenolpyruvate synthetase from Escherichia coli."
Jones C.E., Fleming T.M., Piper P.W., Littlechild J.A., Cowan D.A.
Gene 160:101-103(1995) [PubMed: 7628701] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Strain: ATCC 43587 / DSM 3638 / JCM 8422 / Vc1.
[3]"The complete sequence of the Pyrococcus furiosus genome."
Weiss R.B., Dunn D.M., Robb F.T., Brown J.R.
Submitted (FEB-2002) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 43587 / DSM 3638 / JCM 8422 / Vc1.
[4]"Phosphoenolpyruvate synthetase from the hyperthermophilic archaeon Pyrococcus furiosus."
Hutchins A.M., Holden J.F., Adams M.W.W.
J. Bacteriol. 183:709-715(2001) [PubMed: 11133966] [Abstract]
Cited for: PROTEIN SEQUENCE OF 2-21, FUNCTION, SUBUNIT, CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES.

Cross-references

Sequence databases

U08376 Genomic DNA. Translation: AAA81512.1.
X80819 Genomic DNA. Translation: CAA56785.1.
AE009950 Genomic DNA. Translation: AAL80167.1.
PIRJC4176.
RefSeqNP_577772.1.

3D structure databases

HSSPHSSP built from PDB template 1H6Z based on UniProtKB O76283.
ModBaseSearch...

Genome annotation databases

GeneID1467872.
GenomeReviewsGene locus PF0043 in contig AE009950_GR.
KEGGpfu:PF0043.
NMPDRfig|186497.1.peg.43.

Organism-specific databases

CMRSearch...

Phylogenomic databases

HOGENOMP42850.
OMARAEHMIL.

Enzyme and pathway databases

BRENDA2.7.9.2. 321.

Family and domain databases

InterProIPR013815. ATP_grasp_subdomain_1.
IPR008279. PEP_mobile.
IPR018274. PEP_mobile_CS.
IPR006318. PEP_P_trans.
IPR006319. PEP_synth.
IPR000121. PEP_utilizers.
IPR002192. PPDK_PEP_bd.
IPR015813. Pyrv/PenolPyrv_Kinase_cat.
[Graphical view]
Gene3DG3DSA:3.30.1490.20. ATP_grasp_subdomain_1. 1 hit.
G3DSA:3.50.30.10. PEP_mobile. 1 hit.
G3DSA:3.20.20.60. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
PfamPF00391. PEP-utilizers. 1 hit.
PF02896. PEP-utilizers_C. 1 hit.
PF01326. PPDK_N. 1 hit.
[Graphical view]
PRINTSPR01736. PHPHTRNFRASE.
ProDomPD000940. PEP_utilizers. 1 hit.
[Graphical view] [Entries sharing at least one domain]
TIGRFAMsTIGR01418. PEP_synth. 1 hit.
PROSITEPS00742. PEP_ENZYMES_2. 1 hit.
PS00370. PEP_ENZYMES_PHOS_SITE. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePPSA_PYRFU
AccessionPrimary (citable) accession number: P42850
Secondary accession number(s): Q59672
Entry history
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: April 3, 2002
Last modified: November 3, 2009
This is version 70 of the entry and version 3 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)

Relevant documents

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents