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3.A.1.27.2
The chloroplast lipid (trigalactosyl diacyl glycerol (TDG)) transporter, Tdg1,2,3 (Lu et al., 2007). Lipids such as mono- and digalactolipids are synthesized in the endoplasmic reticulum (ER) of plant cells and transferred to the thylakoid membranes of chloroplasts. Mutations in an outer chloroplastic envelope protein with 350 aas and 7 putative TMSs in the last 250 residues may catalyze translocation as part of a lipid transfer complex (Xu et al., 2003; Roston et al. 2012).

Accession Number:Q9AT00
Protein Name:Tdg3
Length:345
Molecular Weight:37518.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Location1 / Topology2 / Orientation3: Plastid1 / Multi-pass membrane protein2
Substrate Trigalactosyl diacyl glycerol

Cross database links:

RefSeq: NP_564850.1   
Entrez Gene ID: 842852   
Pfam: PF00005   
KEGG: ath:AT1G65410   

Gene Ontology

GO:0009706 C:chloroplast inner membrane
GO:0005524 F:ATP binding
GO:0016887 F:ATPase activity
GO:0006810 P:transport

References (7)

[1] “Sequence and analysis of chromosome 1 of the plant Arabidopsis thaliana.”  Theologis A.et.al.   11130712
[2] “Empirical analysis of transcriptional activity in the Arabidopsis genome.”  Yamada K.et.al.   14593172
[3] “Molecular population genetics of the Arabidopsis CLAVATA2 region: the genomic scale of variation and selection in a selfing species.”  Shepard K.A.et.al.   12663546
[4] “The Arabidopsis thaliana ABC protein superfamily, a complete inventory.”  Sanchez-Fernandez R.et.al.   11346655
[5] “A small ATPase protein of Arabidopsis, TGD3, involved in chloroplast lipid import.”  Lu B.et.al.   17938172
[6] “Sorting signals, N-terminal modifications and abundance of the chloroplast proteome.”  Zybailov B.et.al.   18431481
[7] “Plant ABC proteins - a unified nomenclature and updated inventory.”  Verrier P.J.et.al.   18299247

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MLSLSCSSSS SSLLPPSLHY HGSSSVQSIV VPRRSLISFR RKVSCCCIAP PQNLDNDATK 
61:	FDSLTKSGGG MCKERGLEND SDVLIECRDV YKSFGEKHIL KGVSFKIRHG EAVGVIGPSG 
121:	TGKSTILKIM AGLLAPDKGE VYIRGKKRAG LISDEEISGL RIGLVFQSAA LFDSLSVREN 
181:	VGFLLYERSK MSENQISELV TQTLAAVGLK GVENRLPSEL SGGMKKRVAL ARSLIFDTTK 
241:	EVIEPEVLLY DEPTAGLDPI ASTVVEDLIR SVHMTDEDAV GKPGKIASYL VVTHQHSTIQ 
301:	RAVDRLLFLY EGKIVWQGMT HEFTTSTNPI VQQFATGSLD GPIRY