SSTT_STRA1
ID SSTT_STRA1 Reviewed; 402 AA.
AC Q3JZQ1;
DT 13-NOV-2007, integrated into UniProtKB/Swiss-Prot.
DT 08-NOV-2005, sequence version 1.
DT 25-MAY-2022, entry version 85.
DE RecName: Full=Serine/threonine transporter SstT {ECO:0000255|HAMAP-Rule:MF_01582};
DE AltName: Full=Na(+)/serine-threonine symporter {ECO:0000255|HAMAP-Rule:MF_01582};
GN Name=sstT {ECO:0000255|HAMAP-Rule:MF_01582}; OrderedLocusNames=SAK_1649;
OS Streptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC
OS SS700).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=205921;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27591 / A909 / CDC SS700;
RX PubMed=16172379; DOI=10.1073/pnas.0506758102;
RA Tettelin H., Masignani V., Cieslewicz M.J., Donati C., Medini D.,
RA Ward N.L., Angiuoli S.V., Crabtree J., Jones A.L., Durkin A.S., DeBoy R.T.,
RA Davidsen T.M., Mora M., Scarselli M., Margarit y Ros I., Peterson J.D.,
RA Hauser C.R., Sundaram J.P., Nelson W.C., Madupu R., Brinkac L.M.,
RA Dodson R.J., Rosovitz M.J., Sullivan S.A., Daugherty S.C., Haft D.H.,
RA Selengut J., Gwinn M.L., Zhou L., Zafar N., Khouri H., Radune D.,
RA Dimitrov G., Watkins K., O'Connor K.J., Smith S., Utterback T.R., White O.,
RA Rubens C.E., Grandi G., Madoff L.C., Kasper D.L., Telford J.L.,
RA Wessels M.R., Rappuoli R., Fraser C.M.;
RT "Genome analysis of multiple pathogenic isolates of Streptococcus
RT agalactiae: implications for the microbial 'pan-genome'.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:13950-13955(2005).
CC -!- FUNCTION: Involved in the import of serine and threonine into the cell,
CC with the concomitant import of sodium (symport system).
CC {ECO:0000255|HAMAP-Rule:MF_01582}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-serine(in) + Na(+)(in) = L-serine(out) + Na(+)(out);
CC Xref=Rhea:RHEA:29575, ChEBI:CHEBI:29101, ChEBI:CHEBI:33384;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01582};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:29577;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01582};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-threonine(in) + Na(+)(in) = L-threonine(out) + Na(+)(out);
CC Xref=Rhea:RHEA:69999, ChEBI:CHEBI:29101, ChEBI:CHEBI:57926;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01582};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:70001;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01582};
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01582};
CC Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01582}.
CC -!- SIMILARITY: Belongs to the dicarboxylate/amino acid:cation symporter
CC (DAACS) (TC 2.A.23) family. {ECO:0000255|HAMAP-Rule:MF_01582}.
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DR EMBL; CP000114; ABA44678.1; -; Genomic_DNA.
DR RefSeq; WP_000819596.1; NC_007432.1.
DR AlphaFoldDB; Q3JZQ1; -.
DR SMR; Q3JZQ1; -.
DR GeneID; 66886479; -.
DR KEGG; sak:SAK_1649; -.
DR HOGENOM; CLU_044581_0_0_9; -.
DR OMA; PVNLQLC; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0015171; F:amino acid transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR GO; GO:0015293; F:symporter activity; IEA:UniProtKB-UniRule.
DR GO; GO:0032329; P:serine transport; IEA:InterPro.
DR GO; GO:0015826; P:threonine transport; IEA:InterPro.
DR Gene3D; 1.10.3860.10; -; 1.
DR HAMAP; MF_01582; Ser_Thr_transp_SstT; 1.
DR InterPro; IPR001991; Na-dicarboxylate_symporter.
DR InterPro; IPR036458; Na:dicarbo_symporter_sf.
DR InterPro; IPR023025; Ser_Thr_transp_SstT.
DR PANTHER; PTHR42865; PTHR42865; 1.
DR Pfam; PF00375; SDF; 1.
DR SUPFAM; SSF118215; SSF118215; 1.
PE 3: Inferred from homology;
KW Amino-acid transport; Cell membrane; Membrane; Symport; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..402
FT /note="Serine/threonine transporter SstT"
FT /id="PRO_0000309134"
FT TRANSMEM 19..39
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 43..63
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 86..106
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 138..158
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 179..199
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 212..232
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 287..307
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 327..347
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
FT TRANSMEM 354..374
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01582"
SQ SEQUENCE 402 AA; 42469 MW; 84344D2D1CAAB5E7 CRC64;
MKRFLKAWRK TSLIKKITIG VVIGLFLGIL VPKASAIGLL GQLFVGGLKA IAPLLVFTLV
ISALSQHREG GKTNMSTIIG LYITATFAAA LIAVVVNYIF PLTLILKTPA KTDLLPPKGI
SEVFQSLLLK IVDNPIHAIT EANYMSILFW AVIFGLAMRS SNQRTKDLMQ TFADATSQVV
KWIINLAPIG IMGLVFTSIS ENGIGILGDY GLLILVLVGT MLFVALVVNP IIAFVMMRKN
PYPLVLRCLK DSGITAFFTR SSAANIPVNM RLCEDLGLDK DTYSVSIPLG AAINMAGAAI
TINILTLAAV NTLGITVDFP TAFLLSVVAA VSACGASGVT GGSLLLIPVA CSLFGISNDV
AMQVVGVGFI VGVIQDSCET ALNSSTDVLF TAVAEKSVFG KK
