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2.A.29.18.2
The plastid S-Adenosylmethionine importer, SAMT1 (regulates plastid biogenesis and plant development; catalyzes the counter-exchange of SAM with SAM and with S-adenosylhomocysteine) (Bouvier et al., 2006).  Also present in the mitochondrion (Haferkamp and Schmitz-Esser 2012).

Accession Number:Q94AG6
Protein Name:SAMT1
Length:325
Molecular Weight:34861.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Number of TMSs:5
Location1 / Topology2 / Orientation3: Mitochondrion inner membrane1 / Multi-pass membrane protein2
Substrate S-adenosylmethionine, S-adenosylhomocysteine

Cross database links:

Genevestigator: Q94AG6
eggNOG: KOG0768
HEGENOM: HBG735918
RefSeq: NP_568060.1   
Entrez Gene ID: 830101   
Pfam: PF00153   
KEGG: ath:AT4G39460   

Gene Ontology

GO:0009941 C:chloroplast envelope
GO:0016021 C:integral to membrane
GO:0005743 C:mitochondrial inner membrane
GO:0005488 F:binding
GO:0000095 F:S-adenosylmethionine transmembrane transpor...
GO:0009658 P:chloroplast organization
GO:0015805 P:S-adenosylmethionine transport
GO:0055085 P:transmembrane transport

References (3)

[1] “Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.”  Mayer K.F.X.et.al.   10617198
[2] “Molecular identification of an Arabidopsis S-adenosylmethionine transporter. Analysis of organ distribution, bacterial expression, reconstitution into liposomes, and functional characterization.”  Palmieri L.et.al.   16950860
[3] “Arabidopsis SAMT1 defines a plastid transporter regulating plastid biogenesis and plant development.”  Bouvier F.et.al.   17098813

External Searches:

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  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MAPLTLSVDV KSSSATSHDV SKRVMQSSQL KINKGFFASV NTQEDKPFDF FRTLFEGFIA 
61:	GGTAGVVVET ALYPIDTIKT RLQAARGGGK IVLKGLYSGL AGNIAGVLPA SALFVGVYEP 
121:	TKQKLLKTFP DHLSAVAHLT AGAIGGLAAS LIRVPTEVVK QRMQTGQFTS APSAVRMIAS 
181:	KEGFRGLYAG YRSFLLRDLP FDAIQFCIYE QLCLGYKKAA RRELSDPENA LIGAFAGALT 
241:	GAVTTPLDVI KTRLMVQGSA KQYQGIVDCV QTIVREEGAP ALLKGIGPRV LWIGIGGSIF 
301:	FGVLESTKRT LAQRRPNTVK ETKEE