Synechocystis sp. PCC6803 : sll1451

ORF IDsll1451
Gene namenrtB
DefinitionABC-type nitrate/nitrite transport system permease protein
Length275 aa
828 bp   +upstreambp   +downstreambp
CyanoBasesll1451 nrtB nitrate transport permease protein NrtB
UniProtP73451 Nitrate transport permease protein nrtB.
KOK02050 ABC.SN.P; NitT/TauT family transport system permease protein
Pfam / Prositepf:BPD_transp_1

CommentFUNCTIONs - PHYSIOLOGICAL-ROLE: Active transport of nitrate s - PROTEIN-FUNCTION: permease protein 'DED: similarity with Synechococcus ssp. PCC 7942 'REF: Aichi et al. 2001sPROTEIN-FAMILY: Super-family of ABC transporters sLOCALIZATION/STRUCTURE: -sREGULATIONs - OPERON-STRUCTURE: nrtABCD-narB (nrtABCD-?ssl2814?-narB in CYORF) `EXP: sNorthern hybridization nrtC-specific probe indicated the presence of a slarge transcription unit / narB-specific probe yielded essentially the same shybridization profile / the size of the largest signal was close to the scalculated size of the nrt-ABCD-narB gene cluster. `REF: Aichi et al. 2001s - REGULATOR: NtcA binding site, 20 bp upstream from the -10 promoter selement of nrtA `EXP `REF: Aichi et al. 2001s - PROMOTER: promoter contained an inverted repeat carrying a LysR motif s(TN11A), centered at position -24 with respect to the NtcA-binding motif ssupposed to constitute the binding site for NtcB `REF: Aichi et al. 2001s - EXPRESSION: The expression of nrtABCD-narB is repressed by ammonium and sinduced by inhibition of ammonium assimilation, suggesting involvement of sNtcA. / Under inducing conditions, expression of the transcription unit is senhanced by nitrite, suggesting regulation by NtcB. `REF: Aichi et al. 2001sMUTANTS: -sOTHER COMMENTS: `HYP: synergistic regulation of bicarbonate and nitrate stransport `REF: Koropatkin et al. 2006
ABC transporters
1. Aichi M, Takatani N, Omata T (2001) Role of NtcB in activation of nitrate assimilation genes in the cyanobacterium Synechocystis sp. strain PCC 6803. J Bacteriol 183:5840-7. [PMID:11566981]
PubMed search
Homology BLAST     FASTA
3D Structure PDB     GTOP

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