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ProGlyProt ID
BC118
Organism Information
Organism Name
Campylobacter jejuni NCTC 11168 serotype O:2
Domain
Bacteria
Classification
Family: Campylobacteraceae
Order: Campylobacterales
Class: Epsilonproteobacteria
Division or phylum: "Proteobacteria"
Taxonomic ID (NCBI)
 
 
Genome Sequence(s)
GenBank
EMBL
Organism Additional Information
Campylobacter jejuni is a microaerophilic, Gram-negative, human pathogen that is the major cause of bacterial food-borne diarrhoea (gastroenteritis). It is most frequently responsible for a form of post-infection neuromuscular paralysis known as Guillain Barre' syndrome. It also leads to an immunoproliferative small intestine disease that is a rare malignant lymphoma of the intestine. Motility is essential for pathogenicity.
 
 
Gene Information
Gene Name
Cj0367c (acrA/cmeA)
NCBI Gene ID
GenBank Gene Sequence
 
 
Protein Information
Protein Name
AcrA or CmeA
UniProtKB/SwissProt ID
NCBI RefSeq
EMBL-CDS
UniProtKB Sequence
Sequence length
367 AA
Subcellular Location
Periplasm
Function
It is a fusion lipoprtein involved in antibiotic resistance. Part of the CmeABC multidrug efflux system.
 
 
Protein Structure
Homology Model
Homology Model File
 
 
Glycosylation Status
Glycosylation Type
N (Asn) linked
Experimentally Validated Glycosite(s) in Full Length Protein
N123, N273
Experimentally Validated Glycosite(s ) in Mature Protein
N123, N273
Glycosite(s) Annotated Protein Sequence
>tr|Q0PBE3|Q0PBE3_CAMJE Periplasmic fusion protein CmeA OS=Campylobacter jejuni
GN=cmeA PE=4 SV=1 MKLFQKNTILALGVVLLLTACSKEEAPKIQMPPQPVTTMSAKSEDLPLSFTYPAKLV
SDY DVIIKPQVSGVIENKLFKAGDKVKKGQTLFIIEQDKFKASVDSAYGQALMAKATFENASK DFN*(123
)
RSKALFSKSAISQKEYDSSLATFNNSKASLASARAQLANARIDLDHTEIKAPFDGTI GDALVNIGDYVSAST
TELVRVTNLNPIYADFFISDTDKLNLVRNTQNGKWDLDSIHANLN LNGETVQGKLYFIDSVIDANSGTVKAKAI
FDNN*(273)NSTLLPGAFATITSEGFIQKNGFKVPQ IAVKQNQNDVYVLLVKNGKVEKSSVHISYQNNEYA
IIDKGLQNGDKIILDNFKKIQVGSE VKEIGAQ
Sequence Around Glycosites (21 AA)
ATFENASKDFNRSKALFSKSA
TVKAKAIFDNNNSTLLPGAFA
Glycosite Sequence Logo
Glycosite Sequence Logo
Technique(s) used for Glycosylation Detection
Immunoblot analysis using glycosylation-specific R12 antiserum
Technique(s) used for Glycosylated Residue(s) Detection
Site-directed mutagenesis
 
 
Glycan Information
Glycan Annotation
Linkage: Bac-Asn.
1406 Da heptasaccharide composed of GalNAc-α1,4-GalNAc-α1,4-[Glcβ1,3-]GalNAc-α1,4-GalNAc-α1,4-GalNAc-α1,3-Bac-β1,N-Asn-Xaa, where Bac is bacillosamine, 2,4-diacetamido-2,4,6-trideoxyglucopyranose.
BCSDB ID
Technique(s) used for Glycan Identification
1H, 13C NMR spectroscopy- one dimensional TOCSY (total correlation spectroscopy) and NOESY (nuclear Overhauser effect spectroscopy); HMBC (heteronuclear multiple bond coherence), HMQC (heteronuclear multiple quantum correlation) spectra.
 
 
Protein Glycosylation linked (PGL) gene(s)
OST Gene Name
pglB (Cj1126c)
OST NCBI Gene ID
OST GenBank Gene Sequence
OST Protein Name
PglB
OST UniProtKB/ SwissProt ID
OST NCBI RefSeq
OST EMBL-CDS
OST UniProtKB Sequence
>tr|Q0P9C8|Q0P9C8_CAMJE Oligosaccharide transferase to N-glycosylate proteins OS
=Campylobacter jejuni GN=pglB PE=4 SV=1 MLKKEYLKNPYLVLFAMIVLAYVFSVFCRFYWVWWA
SEFNEYFFNNQLMIISNDGYAFAE GARDMIAGFHQPNDLSYYGSSLSTLTYWLYKITPFSFESIILYMSTFLSSL
VVIPIILLA NEYKRPLMGFVAALLASVANSYYNRTMSGYYDTDMLVIVLPMFILFFMVRMILKKDFFSL IALPL
FIGIYLWWYPSSYTLNVALIGLFLIYTLIFHRKEKIFYIAVILSSLTLSNIAWFY QSAIIVILFALFALEQKRLN
FMIIGILGSATLIFLILSGGVDPILYQLKFYIFRSDESAN LTQGFMYFNVNQTIQEVENVDFSEFMRRISGSEIV
FLFSLFGFVWLLRKHKSMIMALPIL VLGFLALKGGLRFTIYSVPVMALGFGFLLSEFKAILVKKYSQLTSNVCIV
FATILTLAPV FIHIYNYKAPTVFSQNEASLLNQLKNIANREDYVVTWWDYGYPVRYYSDVKTLVDGGKHL GKDN
FFPSFSLSKDEQAAANMARLSVEYTEKSFYAPQNDILKSDILQAMMKDYNQSNVDL FLASLSKPDFKIDTPKTRD
IYLYMPARMSLIFSTVASFSFINLDTGVLDKPFTFSTAYPL DVKNGEIYLSNGVVLSDDFRSFKIGDNVVSVNSI
VEINSIKQGEYKITPIDDKAQFYIFY LKDSAIPYAQFILMDKTMFNSAYVQMFFLGNYDKNLFDLVINSRDAKVFKLKI
OST PDB ID
3AAG
OST EC Number (BRENDA)
OST Genome Context
Characterized Accessory Gene(s)
PglA, PglJ, PglH, PglI, PglC are glycosyltransferases involved in the heptasaccharide assembly. PglFED are the bacillosamine biosynthetic enzymes. PglK is a flippase.
PGL Additional Links
 
 
Literature
Reference(s)
1) Maita, N., Nyirenda, J., Igura, M., Kamishikiryo, J. and Kohda, D. (2010) Comparative structural biology of eubacterial and archaeal oligosaccharyltransferases. J Biol Chem, 285, 4941-4950. [PubMed: 20007322]
2) Kowarik, M., Young, N.M., Numao, S., Schulz, B.L., Hug, I., Callewaert, N., Mills, D.C., Watson, D.C., Hernandez, M., Kelly, J.F. et al. (2006) Definition of the bacterial N-glycosylation site consensus sequence. EMBO J, 25, 1957-1966.[PubMed: 16619027]
3) Olivier, N.B., Chen, M.M., Behr, J.R. and Imperiali, B. (2006) In vitro biosynthesis of UDP-N,N'-diacetylbacillosamine by enzymes of the Campylobacter jejuni general protein glycosylation system. Biochemistry, 45, 13659-13669. [PubMed: 17087520]
4) Nita-Lazar, M., Wacker, M., Schegg, B., Amber, S. and Aebi, M. (2005) The N-X-S/T consensus sequence is required but not sufficient for bacterial N-linked protein glycosylation. Glycobiology, 15, 361-367. [PubMed: 15574802]
5) Wacker, M., Linton, D., Hitchen, P.G., Nita-Lazar, M., Haslam, S.M., North, S.J., Panico, M., Morris, H.R., Dell, A., Wren, B.W. et al. (2002) N-linked glycosylation in Campylobacter jejuni and its functional transfer into E. coli. Science, 298, 1790-1793. [PubMed: 12459590]
Additional Comments
AcrA is a native glycoprotein. However, its glycosylation was characterized in E. coli in which C. jejuni glycosylation machinery had been reconstituted.
Sequon feature: The consensus sequence for the C jejuni PglB is D/E-X'-N-X"-S/T (where X' and X" stand for any amino acid except proline) which is glycosylated when located in flexible, exposed structural elements. Tripeptide sequence NLT too has been found to be modified in vitro.
Year of Identification
2002
Year of Validation
2002
 
 
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