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2.A.1.49.12
Spinster 3, SPNS3 (SLC63A3), of 512 aas and 12 TMSs.  The evolutionary conservation, predicted structure and neuronal expression have been characterized (Perland et al. 2017). It probably exports sphigosine-1- phosphate.

Accession Number:Q6ZMD2
Protein Name:Protein spinster homolog 3
Length:512
Molecular Weight:54769.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate sphingosine 1-phosphate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MAGGMSAECP EPGPGGLQGQ SPGPGRQCPP PITPTSWSLP PWRAYVAAAV LCYINLLNYM 
61:	NWFIIAGVLL DIQEVFQISD NHAGLLQTVF VSCLLLSAPV FGYLGDRHSR KATMSFGILL 
121:	WSGAGLSSSF ISPRYSWLFF LSRGIVGTGS ASYSTIAPTV LGDLFVRDQR TRVLAVFYIF 
181:	IPVGSGLGYV LGSAVTMLTG NWRWALRVMP CLEAVALILL ILLVPDPPRG AAETQGEGAV 
241:	GGFRSSWCED VRYLGKNWSF VWSTLGVTAM AFVTGALGFW APKFLLEARV VHGLQPPCFQ 
301:	EPCSNPDSLI FGALTIMTGV IGVILGAEAA RRYKKVIPGA EPLICASSLL ATAPCLYLAL 
361:	VLAPTTLLAS YVFLGLGELL LSCNWAVVAD ILLSVVVPRC RGTAEALQIT VGHILGDAGS 
421:	PYLTGLISSV LRARRPDSYL QRFRSLQQSF LCCAFVIALG GGCFLLTALY LERDETRAWQ 
481:	PVTGTPDSND VDSNDLERQG LLSGAGASTE EP