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3.A.1.3.1
Histidine/arginine/lysine/ornithine porter (Heuveling et al. 2014). In contrast to some homologous homodimeric systems, the heterodimeric histidine transporter of Salmonella enterica Typhimurium  ligands only one substrate molecule in between its two transmembrane subunits, HisM and HisQ (Heuveling et al. 2019).

Accession Number:P0A2I9
Protein Name:Histidine transport system permease protein HisQ aka STM2353
Length:228
Molecular Weight:24620.00
Species:Salmonella typhimurium [90371]
Number of TMSs:5
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate lysine, ornithine, arginine, histidine

Cross database links:

RefSeq: NP_461295.1   
Entrez Gene ID: 1253875   
Pfam: PF00528   
BioCyc: STYP99287:STM2353-MONOMER   
KEGG: stm:STM2353   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0005215 F:transporter activity
GO:0006865 P:amino acid transport

References (3)

[1] “Complete nucleotide sequence and identification of membrane components of the histidine transport operon of S. typhimurium.”  Higgins C.F.et.al.   7050725
[2] “Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.”  McClelland M.et.al.   11677609
[3] “Topology of the hydrophobic membrane-bound components of the histidine periplasmic permease. Comparison with other members of the family.”  Kerppola R.E.et.al.   1733937

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
Window Size: Angle:  
FASTA formatted sequence 
1:	MLYGFSGVIL QGAIVTLELA LSSVVLAVLI GLVGAGAKLS QNRVTGLIFE GYTTLIRGVP 
61:	DLVLMLLIFY GLQIALNVVT DSLGIDQIDI DPMVAGIITL GFIYGAYFTE TFRGAFMAVP 
121:	KGHIEAATAF GFTHGQTFRR IMFPAMMRYA LPGIGNNWQV ILKATALVSL LGLEDVVKAT 
181:	QLAGKSTWEP FYFAVVCGLI YLVFTTVSNG VLLLLERRYS VGVKRADL