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3.A.1.1.28
The raffinose/stachyose transporter, MsmEFGK (MalK (3.A.1.1.27) can probably substitute for MsmK; Webb et al., 2008). This system may also transport melibiose, isomaltotriose and sucrose as well as isomaltosaccharides (Russell et al. 1992).

Accession Number:Q00752
Protein Name:MsmK aka SMU.882
Length:377
Molecular Weight:41964.00
Species:Streptococcus mutans [1309]
Location1 / Topology2 / Orientation3: Cell membrane1 / Peripheral membrane protein2
Substrate Raffinose, Stachyose

Cross database links:

RefSeq: NP_721291.1   
Entrez Gene ID: 1028244   
Pfam: PF00005    PF03459   
BioCyc: SMUT210007:SMU_882-MONOMER   
KEGG: smu:SMU.882   

Gene Ontology

GO:0043190 C:ATP-binding cassette (ABC) transporter complex
GO:0005886 C:plasma membrane
GO:0005524 F:ATP binding
GO:0016887 F:ATPase activity
GO:0016820 F:hydrolase activity, acting on acid anhydrid...
GO:0008643 P:carbohydrate transport

References (2)

[1] “A binding protein-dependent transport system in Streptococcus mutans responsible for multiple sugar metabolism.”  Russell R.R.B.et.al.   1537846
[2] “Genome sequence of Streptococcus mutans UA159, a cariogenic dental pathogen.”  Ajdic D.J.et.al.   12397186

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MVELNLNHIY KKYPNSSHYS VEDFDLDIKN KEFIVFVGPS GCGKSTTLRM VAGLEDITKG 
61:	ELKIDGEVVN DKAPKDRDIA MVFQNYALYP HMSVYDNMAF GLKLRHYSKE AIDKRVKEAA 
121:	QILGLTEFLE RKPADLSGGQ RQRVAMGRAI VRDAKVFLMD EPLSNLDAKL RVSMRAEIAK 
181:	IHRRIGATTI YVTHDQTEAM TLADRIVIMS STKNEDGSGT IGRVEQVGTP QELYNRPANK 
241:	FVAGFIGSPA MNFFDVTIKD GHLVSKDGLT IAVTEGQLKM LESKGFKNKN LIFGIRPEDI 
301:	SSSLLVQETY PDATVDAEVV VSELLGSETM LYLKLGQTEF AARVDARDFH EPGEKVSLTF 
361:	NVAKGHFFDA ETEAAIR