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2.A.76.1.2
Threonine efflux permease (probable threonine:H+ antiporter), RhtC (YigJ).  Expression is under the control of the leucine-responsive protein, Lrp, and amino acids in the medium (Kutukova et al. 2005). Mutation of the rhtC gene can protect cells against toxic levels of threonine (Radi et al. 2022).

Accession Number:P0AG38
Protein Name:Threonine efflux protein RhtC aka YigJ aka B3823
Length:206
Molecular Weight:22474.00
Species:Escherichia coli [83333]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate hydron, L-threonine

Cross database links:

RefSeq: AP_003977.1    YP_026264.1   
Entrez Gene ID: 948317   
Pfam: PF01810   
BioCyc: EcoCyc:RHTC-MONOMER   
KEGG: ecj:JW5586    eco:b3823   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0006865 P:amino acid transport

References (7)

[1] “Analysis of the Escherichia coli genome: DNA sequence of the region from 84.5 to 86.5 minutes.”  Daniels D.L.et.al.   1379743
[2] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[3] “Escherichia coli K-12: a cooperatively developed annotation snapshot -- 2005.”  Riley M.et.al.   16397293
[4] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[5] “The recQ gene of Escherichia coli K12: primary structure and evidence for SOS regulation.”  Irino N.et.al.   3027506
[6] “The novel transmembrane Escherichia coli proteins involved in the amino acid efflux.”  Zakataeva N.P.et.al.   10386596
[7] “Global topology analysis of the Escherichia coli inner membrane proteome.”  Daley D.O.et.al.   15919996

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MLMLFLTVAM VHIVALMSPG PDFFFVSQTA VSRSRKEAMM GVLGITCGVM VWAGIALLGL 
61:	HLIIEKMAWL HTLIMVGGGL YLCWMGYQML RGALKKEAVS APAPQVELAK SGRSFLKGLL 
121:	TNLANPKAII YFGSVFSLFV GDNVGTTARW GIFALIIVET LAWFTVVASL FALPQMRRGY 
181:	QRLAKWIDGF AGALFAGFGI HLIISR