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3.A.1.3.26
The putative polar amino acid uptake porter, YhdWXYZ.  Probably under NtrBC transcriptional control (Jiang et al. 2006).

Accession Number:P45768
Protein Name:Inner membrane amino-acid ABC transporter permease protein YhdY
Length:367
Molecular Weight:41484.00
Species:Escherichia coli (strain K12) [83333]
Number of TMSs:8
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate serine, asparagine, L-threonine, glutamine, histidine, tyrosine

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MTKVLLSHPP RPASHNSSRA MVWVRKNLFS SWSNSLLTIG CIWLMWELIP PLLNWAFLQA 
61:	NWVGSTRADC TKAGACWVFI HERFGQFMYG LYPHDQRWRI NLALLIGLVS IAPMFWKILP 
121:	HRGRYIAAWA VIYPLIVWWL MYGGFFALER VETRQWGGLT LTLIIASVGI AGALPWGILL 
181:	ALGRRSHMPI VRILSVIFIE FWRGVPLITV LFMSSVMLPL FMAEGTSIDK LIRALVGVIL 
241:	FQSAYVAEVV RGGLQALPKG QYEAAESLAL GYWKTQGLVI LPQALKLVIP GLVNTIIALF 
301:	KDTSLVIIIG LFDLFSSVQQ ATVDPAWLGM STEGYVFAAL IYWIFCFSMS RYSQYLEKRF 
361:	NTGRTPH