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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:	P38044
Protein Name:	NrtB
Length:	279
Molecular Weight:	30207.00
Species:	Synechococcus sp [1140]
Number of TMSs:	6
Location¹ / Topology² / Orientation³:	Cell membrane¹ / Multi-pass membrane protein²
Substrate	nitrite, nitrate

RefSeq:	YP_400255.1
Entrez Gene ID:	3773526
Pfam:	PF00528
BioCyc:	SELO1140:SYNPCC7942_1238-MONOMER
KEGG:	syf:Synpcc7942_
Gene Ontology GO:0016021 C:integral to membrane GO:0005886 C:plasma membrane 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

UniProt (Universal Protein Resource)
CDD Search (Conserved Domain Database)

Predict TMSs (Predict number of transmembrane segments)

FASTA formatted sequence

1:	MTVTLRPPSS VRRSAWVKNP KLKPFLPYVV CLPIFLAIWQ VISAILGQDR LPGPINVVAN 
61:	TWMPYIVEPF FDNGGTSKGL GLQILISLQR VAIGYLLAAC TGILVGGVLG MSKFLGKGLD 
121:	PVIQVLRTVP PLAWFPISLM VFQDANTSAI FVIFITAIWP IIINTAVGIN QIPDDYNNVA 
181:	RVLKLSKKDY ILNILIPSTV PYVFAGLRIA VGLAWLAIVA AEMLKADGGI GYFIWDAYNA 
241:	GGDGSSSQII LAIFYVGLVG LSLDRLVAWV GRLVSPVSR

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).

Cross database links:

Gene Ontology

References (1)

External Searches:

Analyze:

3.A.1.16.1Four 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).

Cross database links:

Gene Ontology

References (1)

External Searches:

Analyze:

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).