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3.A.1.11.7
The spermidine/putrescine uptake porter, PotABCD (Shah et al. 2008; Shah et al. 2006; Ware et al. 2006Shah et al. 2006; Ware et al. 2006Ware et al. 2006).

Accession Number:Q97Q44
Protein Name:Spermidine/putrescine ABC transporter, permease protein
Length:257
Molecular Weight:28978.00
Species:Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4) [170187]
Number of TMSs:7
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate spermidine, putrescine

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKKFANLYLG LVFLVLYLPI FYLIGYAFNA GDDMNSFTGF SWTHFETMFG DGRLMLILAQ 
61:	TFFLAFLSAL IATIIGTFGA IYIYQSRKKY QEAFLSLNNI LMVAPDVMIG ASFLILFTQL 
121:	KFSLGFLTVL SSHVAFSIPI VVLMVLPRLK EMNGDMIHAA YDLGASQFQM FKEIMLPYLT 
181:	PSIITGYFMA FTYSLDDFAV TFFVTGNGFS TLSVEIYSRA RKGISLEINA LSALVFLFSI 
241:	ILVVGYYFIS REKEEQA