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2.A.1.49.2
The spinster homologue, Spin1 or Spns1 (SLC63A1) of 528 aas and 12 TMSs. It interacts with Bc1-2/Bc1-XL to induce a caspase-independent autophagic cell death (Yanagisawa et al., 2003). It is a spingosine-1-phosphate (S1P) (or sphingolipid) exporter (Nijnik et al. 2012). S1P is important for lymphocyte trafficking, immune responses, vascular and embryonic development, cancer, bone homeostasis (Zhu et al. 2018). S1P is produced intracellularly and then secreted into the circulation to engage in the above physiological or pathological processes by regulating the proliferation, differentiation and survival of target cells. SPNS2 acts as a mediator of intracellular S1P release.

Accession Number:Q9H2V7
Protein Name:SPIN1 protein
Length:528
Molecular Weight:56630.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:12
Location1 / Topology2 / Orientation3: Mitochondrion inner membrane1 / Multi-pass membrane protein2
Substrate sphingosine 1-phosphate, sphingosine 1-phosphate

Cross database links:

RefSeq: NP_001135920.1    NP_001135921.1    NP_001135922.1    NP_001135923.1    NP_114427.1   
Entrez Gene ID: 83985   
Pfam: PF07690   
OMIM: 612583  gene
KEGG: hsa:83985   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005743 C:mitochondrial inner membrane
GO:0005515 F:protein binding
GO:0006869 P:lipid transport
GO:0055085 P:transmembrane transport

References (9)

[1] “Mutations in the novel membrane protein spinster interfere with programmed cell death and cause neural degeneration in Drosophila melanogaster.”  Nakano Y.et.al.   11340170
[2] “Complete sequencing and characterization of 21,243 full-length human cDNAs.”  Ota T.et.al.   14702039
[3] “Large-scale cDNA transfection screening for genes related to cancer development and progression.”  Wan D.et.al.   15498874
[4] “The full-ORF clone resource of the German cDNA consortium.”  Bechtel S.et.al.   17974005
[5] “The sequence and analysis of duplication-rich human chromosome 16.”  Martin J.et.al.   15616553
[6] “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).”  The MGC Project Teamet.al.   15489334
[7] “HSpin1, a transmembrane protein interacting with Bcl-2/Bcl-xL, induces a caspase-independent autophagic cell death.”  Yanagisawa H.et.al.   12815463
[8] “A quantitative atlas of mitotic phosphorylation.”  Dephoure N.et.al.   18669648
[9] “Lys-N and trypsin cover complementary parts of the phosphoproteome in a refined SCX-based approach.”  Gauci S.et.al.   19413330

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MAGSDTAPFL SQADDPDDGP VPGTPGLPGS TGNPKSEEPE VPDQEGLQRI TGLSPGRSAL 
61:	IVAVLCYINL LNYMDRFTVA GVLPDIEQFF NIGDSSSGLI QTVFISSYMV LAPVFGYLGD 
121:	RYNRKYLMCG GIAFWSLVTL GSSFIPGEHF WLLLLTRGLV GVGEASYSTI APTLIADLFV 
181:	ADQRSRMLSI FYFAIPVGSG LGYIAGSKVK DMAGDWHWAL RVTPGLGVVA VLLLFLVVRE 
241:	PPRGAVERHS DLPPLNPTSW WADLRALARN PSFVLSSLGF TAVAFVTGSL ALWAPAFLLR 
301:	SRVVLGETPP CLPGDSCSSS DSLIFGLITC LTGVLGVGLG VEISRRLRHS NPRADPLVCA 
361:	TGLLGSAPFL FLSLACARGS IVATYIFIFI GETLLSMNWA IVADILLYVV IPTRRSTAEA 
421:	FQIVLSHLLG DAGSPYLIGL ISDRLRRNWP PSFLSEFRAL QFSLMLCAFV GALGGAAFLG 
481:	TAIFIEADRR RAQLHVQGLL HEAGSTDDRI VVPQRGRSTR VPVASVLI