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3.A.1.16.1
Four component nitrate/nitrite porter (Kikuchi et al. 1996).  It's synthesis occurs in response to nitrite, not nitrate in a nitrate reductase mutant (Kikuchi et al. 1996).

Accession Number:P38046
Protein Name:NrtD
Length:274
Molecular Weight:30366.00
Species:Synechococcus sp [1140]
Location1 / Topology2 / Orientation3: Cell membrane1 / Peripheral membrane protein2
Substrate nitrite, nitrate

Cross database links:

RefSeq: YP_400253.1   
Entrez Gene ID: 3773524   
Pfam: PF00005   
BioCyc: SELO1140:SYNPCC7942_1236-MONOMER   
KEGG: syf:Synpcc7942_   

Gene Ontology

GO:0005886 C:plasma membrane
GO:0005524 F:ATP binding
GO:0016887 F:ATPase activity
GO:0015112 F:nitrate transmembrane transporter activity
GO:0042128 P:nitrate assimilation
GO:0015706 P:nitrate transport

References (1)

[1] “Identification and characterization of a gene cluster involved in nitrate transport in the cyanobacterium Synechococcus sp. PCC7942.”  Omata T.et.al.   8437564

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
Window Size: Angle:  
FASTA formatted sequence
1:	MTAILPSTAA TVNTGFLHFD CVGKTFPTPR GPYVAIEDVN LSVQQGEFIC VIGHSGCGKS 
61:	TLLNLVSGFS QPTSGGVYLD GQPIQEPGPD RMVVFQNYSL LPWKSARDNI ALAVKAARPH 
121:	LSTSEQRQVV DHHLELVGLT EAQHKRPDQL SGGMKQRVAI ARALSIRPEV LILDEPFGAL 
181:	DAITKEELQE ELLNIWEEAR PTVLMITHDI DEALFLADRV VMMTNGPAAT IGEVLEIPFD 
241:	RPREREAVVE DPRYAQLRTE ALDFLYRRFA HDDD