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P69826 (PTMCB_ECOLI) Reviewed, UniProtKB/Swiss-Prot

Last modified May 29, 2013. Version 68. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
PTS system mannitol-specific cryptic EIICB component
Alternative name(s):
EIICB-Mtl
Short name=EII-Mtl

Including the following 2 domains:

  1. Mannitol permease IIC component
    Alternative name(s):
    PTS system mannitol-specific EIIC component
  2. Mannitol-specific phosphotransferase enzyme IIB component
    EC=2.7.1.69
    Alternative name(s):
    PTS system mannitol-specific EIIB component
Gene names
Name:cmtA
Ordered Locus Names:b2933, JW2900
OrganismEscherichia coli (strain K12) [Reference proteome] [HAMAP]
Taxonomic identifier83333 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia

Protein attributes

Sequence length462 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 mannitol transport By similarity.

Catalytic activity

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

Subcellular location

Cell inner membrane; Multi-pass membrane protein Ref.5.

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.

Sequence similarities

Contains 1 PTS EIIB type-2 domain.

Contains 1 PTS EIIC type-2 domain.

Sequence caution

The sequence CAA51229.1 differs from that shown. Reason: Contaminating sequence. Vector contamination at the C-terminus.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 462462PTS system mannitol-specific cryptic EIICB component
PRO_0000186679

Regions

Topological domain1 – 2525Cytoplasmic Potential
Transmembrane26 – 4520Helical; Probable
Topological domain46 – 516Periplasmic Potential
Transmembrane52 – 7019Helical; Probable
Topological domain71 – 13565Cytoplasmic Potential
Transmembrane136 – 15520Helical; Probable
Topological domain156 – 16611Periplasmic Potential
Transmembrane167 – 18519Helical; Probable
Topological domain186 – 27388Cytoplasmic Potential
Transmembrane274 – 29421Helical; Probable
Topological domain295 – 31622Periplasmic Potential
Transmembrane317 – 33620Helical; Probable
Topological domain337 – 462126Cytoplasmic Potential
Domain13 – 344332PTS EIIC type-2
Domain371 – 46191PTS EIIB type-2

Sites

Active site3771Phosphocysteine intermediate; for EIIB activity By similarity

Experimental info

Sequence conflict274 – 2752MI → IEF in CAA51229. Ref.1
Sequence conflict415 – 43521DADIV…RVTDK → GCRISGRLHPWPRSWKGAVE TGVRN in CAA51229. Ref.1

Sequences

Sequence LengthMass (Da)Tools
P69826 [UniParc].

Last modified May 10, 2005. Version 1.
Checksum: 83F2D203D9E5A4C4

FASTA46248,971
        10         20         30         40         50         60 
MENKSARAKV QAFGGFLTAM VIPNIGAFIA WGFITALFIP TGWLPNEHFA KIVGPMITYL 

        70         80         90        100        110        120 
LPVMIGSTGG HLVGGKRGAV MGGIGTIGVI VGAEIPMFLG SMIMGPLGGL VIKYVDKALE 

       130        140        150        160        170        180 
KRIPAGFEMV INNFSLGIAG MLLCLLGFEV IGPAVLIANT FVKECIEALV HAGYLPLLSV 

       190        200        210        220        230        240 
INEPAKVLFL NNAIDQGVYY PLGMQQASVN GKSIFFMVAS NPGPGLGLLL AFTLFGKGMS 

       250        260        270        280        290        300 
KRSAPGAMII HFLGGIHELY FPYVLMKPLT IIAMIAGGMS GTWMFNLLDG GLVAGPSPGS 

       310        320        330        340        350        360 
IFAYLALTPK GSFLATIAGV TVGTLVSFAI TSLILKMEKT VETESEDEFA QSANAVKAMK 

       370        380        390        400        410        420 
QEGAFSLSRV KRIAFVCDAG MGSSAMGATT FRKRLEKAGL AIEVKHYAIE NVPADADIVV 

       430        440        450        460 
THASLEGRVK RVTDKPLILI NNYIGDPKLD TLFNQLTAEH KH 

« Hide

References

« Hide 'large scale' references
[1]"Two open reading frames adjacent to the Escherichia coli K-12 transketolase (tkt) gene show high similarity to the mannitol phosphotransferase system enzymes from Escherichia coli and various Gram-positive bacteria."
Sprenger G.A.
Biochim. Biophys. Acta 1158:103-106(1993) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-446.
Strain: K12.
[2]Rudd K.E.
Unpublished observations (JUN-1993)
Cited for: PRESENCE OF VECTOR SEQUENCE CONTAMINATION IN SEQUENCE DESCRIBED IN PUBMED:8353127.
[3]"The complete genome sequence of Escherichia coli K-12."
Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V., Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F., Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B., Shao Y.
Science 277:1453-1474(1997) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: K12 / MG1655 / ATCC 47076.
[4]"Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110."
Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S., Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T.
Mol. Syst. Biol. 2:E1-E5(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: K12 / W3110 / ATCC 27325 / DSM 5911.
[5]"Global topology analysis of the Escherichia coli inner membrane proteome."
Daley D.O., Rapp M., Granseth E., Melen K., Drew D., von Heijne G.
Science 308:1321-1323(2005) [PubMed] [Europe PMC] [Abstract]
Cited for: SUBCELLULAR LOCATION.
Strain: K12 / MG1655 / ATCC 47076.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
X72677 Genomic DNA. Translation: CAA51229.1. Different termination.
U28377 Genomic DNA. Translation: AAA69100.1.
U00096 Genomic DNA. Translation: AAC75970.1.
AP009048 Genomic DNA. Translation: BAE76996.1.
PIRS36123. D65078.
RefSeqNP_417408.1. NC_000913.2.
YP_491132.1. NC_007779.1.

3D structure databases

ProteinModelPortalP69826.
SMRP69826. Positions 368-462.
ModBaseSearch...

Protein-protein interaction databases

IntActP69826. 3 interactions.
STRING511145.b2933.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaAAC75970; AAC75970; b2933.
BAE76996; BAE76996; BAE76996.
GeneID12933074.
945256.
KEGGecj:Y75_p2863.
eco:b2933.
PATRIC32121278. VBIEscCol129921_3027.

Organism-specific databases

EchoBASEEB1740.
EcoGeneEG11792. cmtA.

Phylogenomic databases

eggNOGCOG2213.
HOGENOMHOG000252814.
KOK02799.
K02800.
OMAMIVAMIA.
ProtClustDBCLSK2460192.

Enzyme and pathway databases

BioCycEcoCyc:CMTA-MONOMER.
ECOL316407:JW2900-MONOMER.
MetaCyc:CMTA-MONOMER.

Gene expression databases

GenevestigatorP69826.

Family and domain databases

Gene3D3.40.50.10370. 1 hit.
InterProIPR013011. PTS_EIIB_2.
IPR003501. PTS_EIIB_2/3.
IPR003352. PTS_EIIC.
IPR013014. PTS_EIIC_2.
IPR004718. PTS_IIC_mtl.
[Graphical view]
PfamPF02378. PTS_EIIC. 1 hit.
PF02302. PTS_IIB. 1 hit.
[Graphical view]
TIGRFAMsTIGR00851. mtlA. 1 hit.
PROSITEPS51099. PTS_EIIB_TYPE_2. 1 hit.
PS51104. PTS_EIIC_TYPE_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePTMCB_ECOLI
AccessionPrimary (citable) accession number: P69826
Secondary accession number(s): P32059, Q2M9R0
Entry history
Integrated into UniProtKB/Swiss-Prot: May 10, 2005
Last sequence update: May 10, 2005
Last modified: May 29, 2013
This is version 68 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

Escherichia coli

Escherichia coli (strain K12): entries and cross-references to EcoGene

SIMILARITY comments

Index of protein domains and families