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4.A.3.2.1
N,N'-diacetylchitobiose (Chb) porter (also transports cellobiose; Kachroo et al., 2007).

Accession Number:P69791
Protein Name:PTCA aka ChbA aka CELC aka B1736
Length:116
Molecular Weight:12748.00
Species:Escherichia coli [83333]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Cytoplasm1
Substrate cellobiose, N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-aldehydo-D-glucosamine

Cross database links:

RefSeq: AP_002355.1    NP_416250.1   
Entrez Gene ID: 946244   
Pfam: PF02255   
BioCyc: EcoCyc:CELC-MONOMER    ECOL168927:B1736-MONOMER   
KEGG: ecj:JW1725    eco:b1736   

Gene Ontology

GO:0005737 C:cytoplasm
GO:0016020 C:membrane
GO:0005351 F:sugar:hydrogen symporter activity
GO:0016740 F:transferase activity
GO:0009401 P:phosphoenolpyruvate-dependent sugar phospho...

References (9)

[1] “Characterization and nucleotide sequence of the cryptic cel operon of Escherichia coli K12.”  Parker L.L.et.al.   2179047
[2] “Molecular population genetics of Escherichia coli: DNA sequence diversity at the celC, crr, and gutB loci of natural isolates.”  Hall B.G.et.al.   1630305
[3] “A 570-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 28.0-40.1 min region on the linkage map.”  Aiba H.et.al.   9097039
[4] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[5] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[6] “Wild-type Escherichia coli grows on the chitin disaccharide, N,N'-diacetylchitobiose, by expressing the cel operon.”  Keyhani N.O.et.al.   9405618
[7] “The chitin disaccharide, N,N'-diacetylchitobiose, is catabolized by Escherichia coli and is transported/phosphorylated by the phosphoenolpyruvate:glycose phosphotransferase system.”  Keyhani N.O.et.al.   10913117
[8] “Isolation and characterization of IIAChb, a soluble protein of the enzyme II complex required for the transport/phosphorylation of N, N'-diacetylchitobiose in Escherichia coli.”  Keyhani N.O.et.al.   10913118
[9] “Analytical sedimentation of the IIAChb and IIBChb proteins of the Escherichia coli N,N'-diacetylchitobiose phosphotransferase system. Demonstration of a model phosphotransfer transition state complex.”  Keyhani N.O.et.al.   10913122
Structure:
1WCR   2WWV   2WY2   2LRK   2LRL     

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MMDLDNIPDT QTEAEELEEV VMGLIINSGQ ARSLAYAALK QAKQGDFAAA KAMMDQSRMA 
61:	LNEAHLVQTK LIEGDAGEGK MKVSLVLVHA QDHLMTSMLA RELITELIEL HEKLKA