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2.A.56.1.9
The possible disulfide 3,3'-dithiodipropionic acid (DTDP) tripartite transporter, DctMPQ (Wübbeler et al. 2014).  More probably takes up an array of oxidized sugar onic acids, D-gluconate, D-galactonate, L-arabonate, D-fuconate and D-xylonate. The sugars are oxidized by a broad-range, membrane bound sogar oxidase.  The acids that have been studied kineticall have Kms between 8 and 15 μM (Meinert et al. 2017; ).

Accession Number:R4JQ65
Protein Name:TRAP transporter DctM subunit
Length:426
Molecular Weight:45314.00
Species:Advenella mimigardefordensis DPN7 [1247726]
Number of TMSs:13
Substrate D-fuconate, D-xylonic acid, D-galactonate, D-gluconate

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FASTA formatted sequence
1:	MTVTIFLSVL LGFMAFGMPI AFALLLSAIG LMFYLDFFDV QILAQNMLAG ADNFSLMAVP 
61:	LFMLAGEAMN AGGMSRRMVA LASTLVGHVH GGLGYVAIMA SVLLAALSGS AVADSAALAA 
121:	MLVPMLRNRG YDLKQSCGLI AAGGIIAPII PPSISFIIFG VATNISVTKL FMAGIVPGLL 
181:	MGLTLVMVWT FVARRSTSFK PFPKEPWPVR MKALRESGWA LVLPVIIIGG LRFGIFTPTE 
241:	AAAVAAVYAL FVGMVIYREI KPGHLMKLLV NAATTTSVVM FLVAAALVTS YMITLADLPK 
301:	ELISLLGPLV DSPTLLMIVL VILLTLVGTA MDLTPTILIL APVLMPVIKE AGIDPTYFGV 
361:	IFIMVGCAGL LTPPVGTVLN VVCGVARIRM EDIIKGVWPY VAAYTLLILL LVIFPQIVTV 
421:	PMNWFY