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2.A.15.1.13
Glycine betaine transporter, OpuD, of 520 aas and 12 TMSs. It may also transport proline, but with low affinity (Wetzel et al. 2011). It is a dominant proline uptake porter, the other being ProT (Lehman et al. 2023).

Accession Number:AIU86122.1
Protein Name:AIU86122.1 glycine betaine transporter OpuD [Staphylococcus aureus]
Length:521
Molecular Weight:
Species:Staphylococcus aureus [1280]
Number of TMSs:12
Substrate proline

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKNKSVSLVF WVSLVICTIF VAFGAIFPKQ LEKLTQNITT FIALHFSWYY LLLVLVILFV 
61:	CVYILFSRYA NITLGEEGED PEFSLPSWFA MLFSAGMGIG LVFWTTAEPI SHAFKLTPIH 
121:	KAGTQSAIND AMQFSFFHWG IHAWAVYGIV ALVFAYFSFH KGYPGLVSAT LTPLLGEKAM 
181:	RGPLGGAIDV LAVIATVTGV AATLGFGALQ INEGLHFLFN VPSNFTMQVI LIVIATILFT 
241:	WSAWSGIDKG IKTLSNINML LAFVVLIGLF IVGPTLYILN TFTNGLGNYI ANFFSMSLRI 
301:	PTGGQKFQWL QNWTIFYWAW WISWAPFVGI FIARVSKGRT IKEFILGVLF VPALVCFIFF 
361:	AVFGASAIYL QDNHIADIAK AATETATFAT LQHYPLGFVL SLITLLVIMI FFVTSADSAT 
421:	YVLGMLSSSG DINPKSFVKV SWGIIMALFA IIMIYTGGTQ AIQNLLIIAA LPFSVVIIAM 
481:	IWSLIKSLSE EKPRNSNKVL IKHRDPDILE YRSSKHIDEN