ID NRTB_SYNY3 Reviewed; 275 AA.
AC P73451;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1997, sequence version 1.
DT 27-MAR-2024, entry version 131.
DE RecName: Full=Nitrate import permease protein NrtB {ECO:0000305};
GN Name=nrtB; OrderedLocusNames=sll1451;
OS Synechocystis sp. (strain PCC 6803 / Kazusa).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Merismopediaceae;
OC Synechocystis.
OX NCBI_TaxID=1111708;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 6803 / Kazusa;
RX PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT "Sequence analysis of the genome of the unicellular cyanobacterium
RT Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT genome and assignment of potential protein-coding regions.";
RL DNA Res. 3:109-136(1996).
CC -!- FUNCTION: Part of the ABC transporter complex NrtABCD involved in
CC nitrate uptake. The complex is probably also involved in nitrite
CC transport. Probably responsible for the translocation of the substrate
CC across the membrane. {ECO:0000250|UniProtKB:P38044}.
CC -!- SUBUNIT: The complex is composed of two ATP-binding proteins (NrtC and
CC NrtD), two transmembrane proteins (NrtB) and a solute-binding protein
CC (NrtA). {ECO:0000250|UniProtKB:P38044}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000250|UniProtKB:P38044}; Multi-pass membrane protein
CC {ECO:0000255}.
CC -!- SIMILARITY: Belongs to the binding-protein-dependent transport system
CC permease family. CysTW subfamily. {ECO:0000305}.
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DR EMBL; BA000022; BAA17491.1; -; Genomic_DNA.
DR PIR; S77388; S77388.
DR AlphaFoldDB; P73451; -.
DR SMR; P73451; -.
DR STRING; 1148.gene:10498356; -.
DR PaxDb; 1148-1652570; -.
DR EnsemblBacteria; BAA17491; BAA17491; BAA17491.
DR KEGG; syn:sll1451; -.
DR eggNOG; COG0600; Bacteria.
DR InParanoid; P73451; -.
DR PhylomeDB; P73451; -.
DR Proteomes; UP000001425; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR GO; GO:0015112; F:nitrate transmembrane transporter activity; IEA:InterPro.
DR GO; GO:0006811; P:monoatomic ion transport; IEA:UniProtKB-KW.
DR GO; GO:0042128; P:nitrate assimilation; IEA:UniProtKB-KW.
DR CDD; cd06261; TM_PBP2; 1.
DR Gene3D; 1.10.3720.10; MetI-like; 1.
DR InterPro; IPR000515; MetI-like.
DR InterPro; IPR035906; MetI-like_sf.
DR InterPro; IPR005889; NtrB.
DR NCBIfam; TIGR01183; ntrB; 1.
DR PANTHER; PTHR30151; ALKANE SULFONATE ABC TRANSPORTER-RELATED, MEMBRANE SUBUNIT; 1.
DR PANTHER; PTHR30151:SF7; NITRATE IMPORT PERMEASE PROTEIN NRTB; 1.
DR Pfam; PF00528; BPD_transp_1; 1.
DR SUPFAM; SSF161098; MetI-like; 1.
DR PROSITE; PS50928; ABC_TM1; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Ion transport; Membrane;
KW Nitrate assimilation; Reference proteome; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..275
FT /note="Nitrate import permease protein NrtB"
FT /id="PRO_0000060127"
FT TRANSMEM 25..45
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 89..109
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 120..140
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 147..167
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 189..209
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 213..233
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 238..258
FT /note="Helical"
FT /evidence="ECO:0000255"
FT DOMAIN 82..262
FT /note="ABC transmembrane type-1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00441"
SQ SEQUENCE 275 AA; 29720 MW; 47CDB9366185F99E CRC64;
MASSTAGLRP RRKKNPLSFI YSPKVIRPAV AIAVLLVVWQ ILCSGEGSNL PSPVQVLEQT
YPLILNPFFD NGGTDKGLGI QIFASLTRVA VGFSAAAVVG IALGILIGSS KFMYDALDPI
FQVLRTIPPL AWLPIALAAL QEAEPSAIFV IFITAIWPIV INTTVGAQQV PQDYRNVSRV
LKLSKSQYFF NILFPAAVPY IFTGLRIGIG LSWLAIVAAE MLIGGVGIGF FIWDAYNSSL
ISEIIIALIY VGIVGLLLDR FIAFLESLVV PAEQK
//
