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Q6GCT7 (PTG3C_STAAS) Reviewed, UniProtKB/Swiss-Prot

Last modified January 25, 2012. Version 57. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
PTS system glucose-specific EIICBA component
Alternative name(s):
EIICBA-Glc
Short name=EII-Glc

Including the following 3 domains:

  1. Glucose permease IIC component
    Alternative name(s):
    PTS system glucose-specific EIIC component
  2. Glucose-specific phosphotransferase enzyme IIB component
    EC=2.7.1.69
    Alternative name(s):
    PTS system glucose-specific EIIB component
  3. Glucose-specific phosphotransferase enzyme IIA component
    EC=2.7.1.-
    Alternative name(s):
    PTS system glucose-specific EIIA component
Gene names
Name:ptsG
Synonyms:glcA
Ordered Locus Names:SAS0164
OrganismStaphylococcus aureus (strain MSSA476) [Complete proteome] [HAMAP]
Taxonomic identifier282459 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacillalesStaphylococcus

Protein attributes

Sequence length681 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in glucose transport By similarity.

Catalytic activity

Protein EIIB N(pi)-phospho-L-histidine/cysteine + sugar = protein EIIB + sugar phosphate.

Protein EIIA N(pi)-phospho-L-histidine + protein EIIB = protein EIIA + protein EIIB N(pi)-phospho-L-histidine/cysteine.

Subcellular location

Cell membrane; Multi-pass membrane protein By similarity.

Domain

The EIIC domain forms the PTS system translocation channel and contains the specific substrate-binding site.

The EIIB domain is phosphorylated by phospho-EIIA on a cysteinyl or histidyl residue, depending on the transported sugar. Then, it transfers the phosphoryl group to the sugar substrate concomitantly with the sugar uptake processed by the EIIC domain.

The EIIA domain is phosphorylated by phospho-HPr on a histidyl residue. Then, it transfers the phosphoryl group to the EIIB domain.

Sequence similarities

Contains 1 PTS EIIA type-1 domain.

Contains 1 PTS EIIB type-1 domain.

Contains 1 PTS EIIC type-1 domain.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 681681PTS system glucose-specific EIICBA component
PRO_0000351398

Regions

Transmembrane16 – 3621Helical; Potential
Transmembrane73 – 9321Helical; Potential
Transmembrane126 – 14621Helical; Potential
Transmembrane170 – 19021Helical; Potential
Transmembrane199 – 21921Helical; Potential
Transmembrane273 – 29321Helical; Potential
Transmembrane303 – 32321Helical; Potential
Transmembrane328 – 34821Helical; Potential
Transmembrane355 – 37521Helical; Potential
Transmembrane383 – 40321Helical; Potential
Domain3 – 414412PTS EIIC type-1
Domain425 – 50682PTS EIIB type-1
Domain551 – 655105PTS EIIA type-1

Sites

Active site4471Phosphocysteine intermediate; for EIIB activity By similarity
Active site6031Tele-phosphohistidine intermediate; for EIIA activity By similarity

Sequences

Sequence LengthMass (Da)Tools
Q6GCT7 [UniParc].

Last modified July 19, 2004. Version 1.
Checksum: 7F1F4A2D4FEBD377

FASTA68173,925
        10         20         30         40         50         60 
MRKKLFGQLQ RIGKALMLPV AILPAAGLLL AIGTAMQGES LQHYLPFIQN GGVQTVAKLM 

        70         80         90        100        110        120 
TGAGGIIFDN LPMIFALGVA IGLAGGDGVA AIAAFVGYII MNKTMGDFLQ VTPKNIGDPA 

       130        140        150        160        170        180 
SGYASILGIP TLQTGVFGGI IIGALAAWCY NKFYNINLPS YLGFFAGKRF VPIMMATTSF 

       190        200        210        220        230        240 
ILAFPMALIW PTIQSGLNAF STGLLDSNTG VAVFLFGFIK RLLIPFGLHH IFHAPFWFEF 

       250        260        270        280        290        300 
GSWKNAAGEI IHGDQRIFIE QIREGAHLTA GKFMQGEFPV MMFGLPAAAL AIYHTAKPEN 

       310        320        330        340        350        360 
KKVVAGLMGS AALTSFLTGI TEPLEFSFLF VAPLLFFIHA VLDGLSFLTL YLLDLHLGYT 

       370        380        390        400        410        420 
FSGGFIDYFL LGILPNKTQW WLVIPVGLVY AVIYYFVFRF LIVKLKYKTP GREDKQSQAA 

       430        440        450        460        470        480 
TASATELPYA VLEAMGGKAN IKHLDACITR LRVEVNDKSK VDVPGLKDLG ASGVLEVGNN 

       490        500        510        520        530        540 
MQAIFGPKSD QIKHEMQQIM NGQVVENPTT MEDDKDETVV VAEDKSATSE LSHIVHAPLT 

       550        560        570        580        590        600 
GEVTPLSEVP DQVFSEKMMG DGIAIKPSQG EVRAPFNGKV QMIFPTKHAI GLVSDSGLEL 

       610        620        630        640        650        660 
LIHIGLDTVK LNGEGFTLHV EEGQEVKQGD LLINFDLDYI RNHAKSDITP IIVTQGNITN 

       670        680 
LDFKQGEHGN ISFGDQLFEA K 

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Cross-references

Sequence databases

EMBL
GenBank
DDBJ
BX571857 Genomic DNA. Translation: CAG41932.1.
RefSeqYP_042286.1. NC_002953.3.

3D structure databases

HSSPHSSP built from PDB template 1O2F based on UniProtKB P69786.
ProteinModelPortalQ6GCT7.
SMRQ6GCT7. Positions 426-498.
ModBaseSearch...

Protein-protein interaction databases

STRINGQ6GCT7.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaEBSTAT00000024051; EBSTAP00000023218; EBSTAG00000024050.
GeneID2863571.
GenomeReviewsGene locus SAS0164 in contig BX571857_GR.
KEGGsas:SAS0164.
PATRIC19549674. VBIStaAur96780_0175.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1263.
GeneTreeEBGT00050000023800.
HOGENOMHBG571563.
OMACIPAIAL.
ProtClustDBCLSK872840.

Enzyme and pathway databases

BioCycSAUR282459:SAS0164-MONOMER.

Family and domain databases

InterProIPR011055. Dup_hybrid_motif.
IPR018113. PTrfase_EIIB/Cys_phosph_CS.
IPR001127. PTS_EIIA_1_perm.
IPR001996. PTS_EIIB_1.
IPR003352. PTS_EIIC.
IPR013013. PTS_EIIC_1.
IPR011535. PTS_Glc-like_IIB_component.
IPR011299. PTS_IIBC_glc.
[Graphical view]
Gene3DG3DSA:3.30.1360.60. PTS_EIIB. 1 hit.
KOK02763.
K02764.
K02765.
PfamPF00358. PTS_EIIA_1. 1 hit.
PF00367. PTS_EIIB. 1 hit.
PF02378. PTS_EIIC. 1 hit.
[Graphical view]
SUPFAMSSF51261. Dup_hybrid_motif. 1 hit.
SSF55604. PTS_EIIB. 1 hit.
TIGRFAMsTIGR00826. EIIB_glc. 1 hit.
TIGR00830. PTBA. 1 hit.
TIGR02002. PTS-II-BC-glcB. 1 hit.
PROSITEPS51093. PTS_EIIA_TYPE_1. 1 hit.
PS00371. PTS_EIIA_TYPE_1_HIS. 1 hit.
PS51098. PTS_EIIB_TYPE_1. 1 hit.
PS01035. PTS_EIIB_TYPE_1_CYS. 1 hit.
PS51103. PTS_EIIC_TYPE_1. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePTG3C_STAAS
AccessionPrimary (citable) accession number: Q6GCT7
Entry history
Integrated into UniProtKB/Swiss-Prot: October 14, 2008
Last sequence update: July 19, 2004
Last modified: January 25, 2012
This is version 57 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