DIT2_SPIOL
ID DIT2_SPIOL Reviewed; 564 AA.
AC Q8L7Z9;
DT 03-OCT-2012, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2002, sequence version 1.
DT 25-MAY-2022, entry version 45.
DE RecName: Full=Dicarboxylate transporter 2, chloroplastic;
DE AltName: Full=Glutamate/malate translocator;
DE Flags: Precursor;
GN Name=DIT2;
OS Spinacia oleracea (Spinach).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC Caryophyllales; Chenopodiaceae; Chenopodioideae; Anserineae; Spinacia.
OX NCBI_TaxID=3562;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, BIOPHYSICOCHEMICAL PROPERTIES, AND
RP TISSUE SPECIFICITY.
RX PubMed=12887583; DOI=10.1046/j.1365-313x.2003.01806.x;
RA Renne P., Dressen U., Hebbeker U., Hille D., Flugge U.I., Westhoff P.,
RA Weber A.P.;
RT "The Arabidopsis mutant dct is deficient in the plastidic glutamate/malate
RT translocator DiT2.";
RL Plant J. 35:316-331(2003).
CC -!- FUNCTION: Glutamate/malate translocator involved with DIT1 in primary
CC ammonia assimilation and in the re-assimilation of ammonia generated by
CC the photorespiratory pathway. Exports the end product of ammonia
CC assimilation, glutamate, from plastids to the cytosol. The precursor
CC for ammonia assimilation, 2-oxoglutarate, is imported from the cytosol
CC by DIT1. {ECO:0000269|PubMed:12887583}.
CC -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC Kinetic parameters:
CC KM=0.30 mM for malate {ECO:0000269|PubMed:12887583};
CC KM=1.59 mM for glutamate {ECO:0000269|PubMed:12887583};
CC KM=2.46 mM for 2-oxoglutarate {ECO:0000269|PubMed:12887583};
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast inner membrane
CC {ECO:0000305}; Multi-pass membrane protein {ECO:0000305}.
CC -!- TISSUE SPECIFICITY: Expressed in leaves. {ECO:0000269|PubMed:12887583}.
CC -!- SIMILARITY: Belongs to the SLC13A/DASS transporter (TC 2.A.47) family.
CC DIT1 subfamily. {ECO:0000305}.
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DR EMBL; AY123846; AAM89396.1; -; mRNA.
DR AlphaFoldDB; Q8L7Z9; -.
DR SMR; Q8L7Z9; -.
DR OrthoDB; 842017at2759; -.
DR SABIO-RK; Q8L7Z9; -.
DR GO; GO:0009706; C:chloroplast inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005313; F:L-glutamate transmembrane transporter activity; IDA:UniProtKB.
DR GO; GO:0015140; F:malate transmembrane transporter activity; IDA:UniProtKB.
DR GO; GO:0015813; P:L-glutamate transmembrane transport; IDA:UniProtKB.
DR GO; GO:0071423; P:malate transmembrane transport; IDA:UniProtKB.
DR InterPro; IPR030676; CitT-rel.
DR InterPro; IPR001898; SLC13A/DASS.
DR PANTHER; PTHR42826; PTHR42826; 1.
DR Pfam; PF00939; Na_sulph_symp; 1.
DR TIGRFAMs; TIGR00785; dass; 1.
PE 1: Evidence at protein level;
KW Chloroplast; Membrane; Plastid; Plastid inner membrane; Transit peptide;
KW Transmembrane; Transmembrane helix; Transport.
FT TRANSIT 1..22
FT /note="Chloroplast"
FT /evidence="ECO:0000255"
FT CHAIN 23..564
FT /note="Dicarboxylate transporter 2, chloroplastic"
FT /id="PRO_0000419186"
FT TRANSMEM 94..114
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 127..147
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 166..186
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 235..255
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 262..282
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 307..327
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 356..376
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 380..400
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 415..435
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 451..471
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 484..504
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 538..558
FT /note="Helical"
FT /evidence="ECO:0000255"
FT REGION 35..58
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 564 AA; 59874 MW; 6DC64D3E7925F209 CRC64;
MESLALLPTL SLSTTTTTSK ATAFLRSSTT SLHHRRPHLS LSLSSTPKPT LTFSSHSHSH
SLSSKPLLAL KPLNATASSS SSPATTSPPP TKSGAKLIPL ILSVSVGLLL RFAVPKPAEL
TPQAWQLLAI FLSTVAGLVL SPLPVGAWAF LGVTASVVTK TLPFPTAFCA FTNEVIWLIV
ISFFFARGFV KTGLGDRIAT YFVKWLGKST LGLSYGLTIS EALVAPAMPS TTARAGGIFL
PIIKSLSISS GSLPGGESRK KLGTYLIMTQ FQSAGNSSAL FLTAAAQNLL CLKLAEELGV
KIASPWVFWL KAASLPAFVA LLLTPLILYK LYPPELKDTP EAPALAAEKL KNMGPVTKNE
WVMVGTMLLA VSLWVFGEKI GVSSVVAAML GLSVLLLLGV LDWNDCLNEK SAWDTLAWFA
VLVGMASQLT NLGIVSWMSG CVARSLKTMN LSWPAAFGIL QAAYFFVHYL FASQTGHVGA
LYSAFLAMNI ASGVPGVLAA LALAYNTNLF GALTHYSSGQ AAVYYGAGYV DLPDVFKMGF
IMAVINATIW TVVGGVWWKI LGIY