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3.A.1.1.52
Sugar (sucrose, maltose, glucose, fructose, esculin (coumarin β-glucoside)) uptake system possibly consisting of 5 or 6 proteins (see below) (Nieves-Morión and Flores 2017). These proteins are all implicated in sugar uptake, but they may include components of multiple transporters. The system may also regulate formation of septal nanopores (Flores et al. 2018).

Accession Number:Q8Z042
Protein Name:Sugar transport system permease protein
Length:276
Molecular Weight:31238.00
Species:Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576) [103690]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate beta-glucoside, maltose, sucrose, glucose, fructose

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MLRSLPLAKV LLYVLLTTYA VITLVPFLWA LSASFKPLSE IVSGTPNFLP QNFTLDNYRQ 
61:	IFLQEPLFLR WLFNSVVIAV SVTLLNLLFN SMAGYALARL SFVGKNFWFF LILAVLAVPA 
121:	QITLIPTFLI LKAIGWLNSY QGMIVPSMVN ATFIFMMRQF FINFPQELEE AAQLDGLNTI 
181:	GIFRYIILPL AKPALAAQAV FVFMGSWNNF LLPVVILFEP EMFTLPLGLN TFKGQYISYW 
241:	NYIMAASMVF TLPALSIYAF FNRYFIQSAT FTGGKG