Skip Header

Contribute Send feedback
Read comments (?) or add your own

Q92D19 (PT1_LISIN) Reviewed, UniProtKB/Swiss-Prot

Last modified January 25, 2012. Version 66. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Phosphoenolpyruvate-protein phosphotransferase

EC=2.7.3.9
Alternative name(s):
Phosphotransferase system, enzyme I
Gene names
Name:ptsI
Ordered Locus Names:lin1002
OrganismListeria innocua [Complete proteome] [HAMAP]
Taxonomic identifier1642 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacillalesListeriaceaeListeria

Protein attributes

Sequence length572 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. Enzyme I transfers the phosphoryl group from phosphoenolpyruvate (PEP) to the phosphoryl carrier protein (HPr) By similarity.

Catalytic activity

Phosphoenolpyruvate + protein L-histidine = pyruvate + protein N(pi)-phospho-L-histidine.

Cofactor

Magnesium By similarity.

Subcellular location

Cytoplasm By similarity.

Domain

The N-terminal domain contains the HPr 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.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 572572Phosphoenolpyruvate-protein phosphotransferase
PRO_0000147073

Sites

Active site1901Tele-phosphohistidine intermediate By similarity
Active site5031Proton donor By similarity
Metal binding4321Magnesium By similarity
Metal binding4561Magnesium By similarity
Binding site2971Substrate By similarity
Binding site3331Substrate By similarity
Binding site4321Substrate By similarity
Binding site4531Substrate; via carbonyl oxygen By similarity
Binding site4541Substrate; via amide nitrogen By similarity
Binding site4551Substrate By similarity
Binding site4561Substrate; via amide nitrogen By similarity

Sequences

Sequence LengthMass (Da)Tools
Q92D19 [UniParc].

Last modified December 1, 2001. Version 1.
Checksum: ECE7E3BD60BCE193

FASTA57263,194
        10         20         30         40         50         60 
MAKELKGIAA SDGIAIAKAY LLVEPDLSYE KTEVTDVESE VKRFESALEV SRTELSTIRE 

        70         80         90        100        110        120 
KAAKDLGEDK AQIFDAHLLV LNDPELTGPI EESIKNAKTN AETALQETTD MFIGMFESMD 

       130        140        150        160        170        180 
NEYMRERAAD IKDVRKRVLS HLLGVTIPNP ALIDEEVVVV AADLTPSDTA QLNRKFVKGF 

       190        200        210        220        230        240 
VTDIGGRTSH SAIMARSLEI PAVVGTKEVT ASVAKNDIVI IDGLEGNVII HPTEEQIAHY 

       250        260        270        280        290        300 
EKIKSDFALQ QAEWEKLKNE KTVSKDGVHV ELAANIGTPN DLEGVISNGG EAVGLYRTEF 

       310        320        330        340        350        360 
LYMGRDNFPT EEEQFEAYKA VVSGMDGKSV VVRTLDIGGD KTLPYLELPE EMNPFLGFRA 

       370        380        390        400        410        420 
IRLCFANEEL FRTQLRALLR ASVYGNLKIM FPMIATVNEF RQARDILLDE KAKLKAAGTE 

       430        440        450        460        470        480 
VSDSIELGIM IEIPAAAVLA DQFAKEVDFF SIGTNDLIQY TMAADRMNER VSYLYQPYNP 

       490        500        510        520        530        540 
SILRLVKMVI DASHKEGKWT GMCGEMAGDQ TAVPLLLGLG LDEFSMSASS ILKSRSLIKR 

       550        560        570 
LDQSEMVKLA EEALNKSTAE EVVELVEKYT AE 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AL596167 Genomic DNA. Translation: CAC96233.1.
PIRAI1557.
RefSeqNP_470339.1. NC_003212.1.

3D structure databases

ProteinModelPortalQ92D19.
SMRQ92D19. Positions 4-570.
ModBaseSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID1129519.
GenomeReviewsGene locus lin1002 in contig AL592022_GR.
KEGGlin:lin1002.
NMPDRfig|272626.1.peg.992.
PATRIC20298721. VBILisInn102668_1028.

Organism-specific databases

GenoListLIN1002.
CMRSearch...

Phylogenomic databases

HOGENOMHBG456539.
OMAIFSAHLL.
ProtClustDBCLSK564210.

Enzyme and pathway databases

BioCycLINN272626:LIN1002-MONOMER.

Family and domain databases

InterProIPR008279. PEP-util_enz_mobile_dom.
IPR018274. PEP_util_AS.
IPR000121. PEP_util_C.
IPR023151. PEP_util_CS.
IPR006318. PEP_util_enz.
IPR024692. PTS_enz_I.
IPR008731. PTS_PEP_utilis_N.
IPR015813. Pyrv/PenolPyrv_Kinase.
[Graphical view]
Gene3DG3DSA:3.50.30.10. PEP_mobile. 1 hit.
G3DSA:1.10.274.10. PTS_PEP_utilis_N. 1 hit.
G3DSA:3.20.20.60. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
KOK08483.
PANTHERPTHR22931:SF10. PTHR22931:SF10. 1 hit.
PfamPF05524. PEP-utilisers_N. 1 hit.
PF00391. PEP-utilizers. 1 hit.
PF02896. PEP-utilizers_C. 1 hit.
[Graphical view]
PIRSFPIRSF000732. PTS_enzyme_I. 1 hit.
PRINTSPR01736. PHPHTRNFRASE.
SUPFAMSSF47831. PEP-utilisers_N. 1 hit.
SSF52009. PEP_mobile. 1 hit.
SSF51621. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
TIGRFAMsTIGR01417. PTS_I_fam. 1 hit.
PROSITEPS00742. PEP_ENZYMES_2. 1 hit.
PS00370. PEP_ENZYMES_PHOS_SITE. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePT1_LISIN
AccessionPrimary (citable) accession number: Q92D19
Entry history
Integrated into UniProtKB/Swiss-Prot: January 23, 2002
Last sequence update: December 1, 2001
Last modified: January 25, 2012
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families