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8.A.6.1.1
Cold-sensitive fermentation (CSF1) protein of 2985 aas.  It is a tube-forming lipid transport protein which provides phosphatidylethanolamine for glycosylphosphatidylinositol (GPI) anchor synthesis in the endoplasmic reticulum (Toulmay et al. 2022). It is required for the glucose and other nutrients uptake at low temperature (Tokai et al. 2000).

Accession Number:Q12150
Protein Name:CSF1 aka YLR087C aka L9449.14
Length:2958
Molecular Weight:338258.00
Species:Saccharomyces cerevisiae (Baker's yeast) [4932]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Membrane1 / Single-pass type II membrane protein2
Substrate

Cross database links:

RefSeq: NP_013188.1   
Entrez Gene ID: 850776   
KEGG: sce:YLR087C   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005739 C:mitochondrion
GO:0006113 P:fermentation

References (2)

[1] “The nucleotide sequence of Saccharomyces cerevisiae chromosome XII.”  Johnston M.et.al.   9169871
[2] “Cloning and characterization of the CSF1 gene of Saccharomyces cerevisiae, which is required for nutrient uptake at low temperature.”  Tokai M.et.al.   10781556

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MEAISQLRGV PLTHQKDFSW VFLVDWILTV VVCLTMIFYM GRIYAYLVSF ILEWLLWKRA 
61:	KIKINVETLR VSLLGGRIHF KNLSVIHKDY TISVLEGSLT WKYWLLNCRK AELIENNKSS 
121:	SGKKAKLPCK ISVECEGLEI FIYNRTVAYD NVINLLSKDE RDKFEKYLNE HSFPEPFSDG 
181:	SSADKLDEDL SESAYTTNSD ASIVNDRDYQ ETDIGKHPKL LMFLPIELKF SRGSLLLGNK 
241:	FTPSVMILSY ESGKGIIDVL PPKERLDLYR NKTQMEFKNF EISIKQNIGY DDAIGLKFKI 
301:	DRGKVSKLWK TFVRVFQIVT KPVVPKKTKK SAGTSDDNFY HKWKGLSLYK ASAGDAKASD 
361:	LDDVEFDLTN HEYAKFTSIL KCPKVTIAYD VDVPGVVPHG AHPTIPDIDG PDVGNNGAPP 
421:	DFALDVQIHG GSICYGPWAQ RQVSHLQRVL SPVVSRTAKP IKKLPPGSRR IYTLFRMNIS 
481:	IMEDTTWRIP TRESSKDPEF LKHYKETNEE YRPFGWMDLR FCKDTYANFN ISVCPTVQGF 
541:	QNNFHVHFLE TEIRSSVNHD ILLKSKVFDI DGDIGYPLGW NSKAIWIINM KSEQLEAFLL 
601:	REHITLVADT LSDFSAGDPT PYELFRPFVY KVNWEMEGYS IYLNVNDHNI VNNPLDFNEN 
661:	CYLSLHGDKL SIDVTVPRES ILGTYTDMSY EISTPMFRMM LNTPPWNTLN EFMKHKEVGR 
721:	AYDFTIKGSY LLYSELDIDN VDTLVIECNS KSTVLHCYGF VMRYLTNVKM NYFGEFFNFV 
781:	TSEEYTGVLG AREVGDVTTK SSVADLASTV DSGYQNSSLK NESEDKGPMK RSDLKRTTNE 
841:	TDIWFTFSVW DGALILPETI YSFDPCIALH FAELVVDFRS CNYYMDIMAV LNGTSIKRHV 
901:	SKQINEVFDF IRRNNGADEQ EHGLLSDLTI HGHRMYGLPP TEPTYFCQWD INLGDLCIDS 
961:	DIEFIKGFFN SFYKIGFGYN DLENILLYDT ETINDMTSLT VHVEKIRIGL KDPVMKSQSV 
1021:	ISAESILFTL IDFENEKYSQ RIDVKIPKLT ISLNCVMGDG VDTSFLKFET KLRFTNFEQY 
1081:	KDIDKKRSEQ RRYITIHDSP YHRCPFLLPL FYQDSDTYQN LYGAIAPSSS IPTLPLPTLP 
1141:	DTIDYIIEDI VGEYATLLET TNPFKNIFAE TPSTMEPSRA SFSEDDNDEE ADPSSFKPVA 
1201:	FTEDRNHERD NYVVDVSYIL LDVDPLLFIF AKSLLEQLYS ENMVQVLDDI EIGIVKRLSN 
1261:	LQEGITSISN IDIHIAYLNL IWQETGEEGF ELYLDRIDYQ MSEKSLEKNR TNKLLEVAAL 
1321:	AKVKTVRVTV NQKKNPDLSE DRPPALSLGI EGFEVWSSTE DRQVNSLNLT SSDITIDESQ 
1381:	MEWLFEYCSD QGNLIQEVCT SFNSIQNTRS NSKTELISKL TAASEYYQIS HDPYVITKPA 
1441:	FIMRLSKGHV RENRSWKIIT RLRHILTYLP DDWQSNIDEV LKEKKYTSAK DAKNIFMSVF 
1501:	STWRNWEFSD VARSYIYGKL FTAENEKHKQ NLIKKLLKCT MGSFYLTVYG EGYEVEHNFV 
1561:	VADANLVVDL TPPVTSLPSN REETIEITGR VGSVKGKFSD RLLKLQDLIP LIAAVGEDDK 
1621:	SDPKKELSKQ FKMNTVLLVD KSELQLVMDQ TKLMSRTVGG RVSLLWENLK DSTSQAGSLV 
1681:	IFSQKSEVWL KHTSVILGEA QLRDFSVLAT TEAWSHKPTI LINNQCADLH FRAMSSTEQL 
1741:	VTAITEIRES LMMIKERIKF KPKSKKKSQF VDQKINTVLS CYFSNVSSEV MPLSPFYIRH 
1801:	EAKQLDIYFN KFGSNEILLS IWDTDFFMTS HQTKEQYLRF SFGDIEIKGG ISREGYSLIN 
1861:	VDISISMIKL TFSEPRRIVN SFLQDEKLAS QGINLLYSLK PLFFSSNLPK KEKQAPSIMI 
1921:	NWTLDTSITY FGVLVPVAST YFVFELHMLL LSLTNTNNGM LPEETKVTGQ FSIENILFLI 
1981:	KERSLPIGLS KLLDFSIKVS TLQRTVDTEQ SFQVESSHFR VCLSPDSLLR LMWGAHKLLD 
2041:	LSHYYSRRHA PNIWNTKMFT GKSDKSKEMP INFRSIHILS YKFCIGWIFQ YGAGSNPGLM 
2101:	LGYNRLFSAY EKDFGKFTVV DAFFSVANGN TSSTFFSEGN EKDKYNRSFL PNMQISYWFK 
2161:	RCGELKDWFF RFHGEALDVN FVPSFMDVIE STLQSMRAFQ ELKKNILDVS ESLRAENDNS 
2221:	YASTSVESAS SSLAPFLDNI RSVNSNFKYD GGVFRVYTYE DIETKSEPSF EIKSPVVTIN 
2281:	CTYKHDEDKV KPHKFRTLIT VDPTHNTLYA GCAPLLMEFS ESLQKMIKKH STDEKPNFTK 
2341:	PSSQNVDYKR LLDQFDVAVK LTSAKQQLSL SCEPKAKVQA DVGFESFLFS MATNEFDSEQ 
2401:	PLEFSLTLEH TKASIKHIFS REVSTSFEVG FMDLTLLFTH PDVISMYGTG LVSDLSVFFN 
2461:	VKQLQNLYLF LDIWRFSSIL HTRPVQRTVN KEIEMSSLTS TNYADAGTEI PWCFTLIFTN 
2521:	VSGDVDLGPS LGMISLRTQR TWLATDHYNE KRQLLHAFTD GISLTSEGRL SGLFEVANAS 
2581:	WLSEVKWPPE KSKNTHPLVS TSLNIDDIAV KAAFDYHMFL IGTISNIHFH LHNEKDAKGV 
2641:	LPDLLQVSFS SDEIILSSTA LVVANILDIY NTIVRMRQDN KISYMETLRD SNPGESRQPI 
2701:	LYKDILRSLK LLRTDLSVNI SSSKVQISPI SLFDVEVLVI RIDKVSIRSE THSGKKLKTD 
2761:	LQLQVLDVSA ALSTSKEELD EEVGASIAID DYMHYASKIV GGTIIDIPKL AVHMTTLQEE 
2821:	KTNNLEYLFA CSFSDKISVR WNLGPVDFIK EMWTTHVKAL AVRRSQVANI SFGQTEEELE 
2881:	ESIKKEEAAS KFNYIALEEP QIEVPQIRDL GDATPPMEWF GVNRKKFPKF THQTAVIPVQ 
2941:	KLVYLAEKQY VKILDDTH