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3.A.1.208.11
Vacuolar metal resistance and drug detoxification protein, yeast cadmium factor (YCF1 or Ycf1p), of 1515 aas and 15 or 16 TMSs in a 5 + 6 + 4 or 5 TMS arrangement; it transports cadmium-glutathione conjugates, glutathione S-conjugated leukotriene C4, organic glutathione S-conjugates, selenodigluthatione, unconjugated bilirubin, reduced glutathione, and diazaborine (Lazard et al., 2011). It mediates arsenite expulsion, possibly as a glutathione conjugate. Activity is dependent on Tus1p, a guanine nucleotide exchange factor (GEF) for the small GTPase Rho1p and a Rho1p-dependent-positive regulator of Ycf1p (Paumi et al. 2007). The structure of Ycf1p reveals the transmembrane domain TMD0 and the regulatory region of ABCC transporters (Bickers et al. 2021). Strategies for generating soluble and monomeric samples of Ycf1p NBD2 have been published (Quail et al. 2025).  

Accession Number:P39109
Protein Name:YCFI aka YCF1 aka YDR135C aka YD9302.11C
Length:1515
Molecular Weight:171121.00
Species:Saccharomyces cerevisiae (Baker's yeast) [4932]
Number of TMSs:14
Location1 / Topology2 / Orientation3: Vacuole membrane1 / Multi-pass membrane protein2
Substrate metal cation, arsenite(3-), glutathione, selenodiglutathione(2-), diazaborine derivative, drug

Cross database links:

DIP: DIP-2612N
RefSeq: NP_010419.1   
Entrez Gene ID: 851713   
Pfam: PF00664    PF00005   
KEGG: sce:YDR135C   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005774 C:vacuolar membrane
GO:0005524 F:ATP binding
GO:0015127 F:bilirubin transmembrane transporter activity
GO:0015431 F:glutathione S-conjugate-exporting ATPase ac...
GO:0005515 F:protein binding
GO:0015723 P:bilirubin transport
GO:0046686 P:response to cadmium ion
GO:0042493 P:response to drug
GO:0055085 P:transmembrane transport

References (12)

[1] “A yeast metal resistance protein similar to human cystic fibrosis transmembrane conductance regulator (CFTR) and multidrug resistance-associated protein.”  Szczypka M.S.et.al.   7521334
[2] “The nucleotide sequence of Saccharomyces cerevisiae chromosome IV.”  Jacq C.et.al.   9169867
[3] “The yeast cadmium factor protein (YCF1) is a vacuolar glutathione S-conjugate pump.”  Li Z.S.et.al.   8626454
[4] “The products of YCF1 and YLL015w (BPT1) cooperate for the ATP-dependent vacuolar transport of unconjugated bilirubin in Saccharomyces cerevisiae.”  Petrovic S.et.al.   10790694
[5] “Global analysis of protein expression in yeast.”  Ghaemmaghami S.et.al.   14562106
[6] “A proteomics approach to understanding protein ubiquitination.”  Peng J.et.al.   12872131
[7] “Quantitative phosphoproteomics applied to the yeast pheromone signaling pathway.”  Gruhler A.et.al.   15665377
[8] “A global topology map of the Saccharomyces cerevisiae membrane proteome.”  Kim H.et.al.   16847258
[9] “Large-scale phosphorylation analysis of alpha-factor-arrested Saccharomyces cerevisiae.”  Li X.et.al.   17330950
[10] “Analysis of phosphorylation sites on proteins from Saccharomyces cerevisiae by electron transfer dissociation (ETD) mass spectrometry.”  Chi A.et.al.   17287358
[11] “Proteome-wide identification of in vivo targets of DNA damage checkpoint kinases.”  Smolka M.B.et.al.   17563356
[12] “A multidimensional chromatography technology for in-depth phosphoproteome analysis.”  Albuquerque C.P.et.al.   18407956

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MAGNLVSWAC KLCRSPEGFG PISFYGDFTQ CFIDGVILNL SAIFMITFGI RDLVNLCKKK 
61:	HSGIKYRRNW IIVSRMALVL LEIAFVSLAS LNISKEEAEN FTIVSQYAST MLSLFVALAL 
121:	HWIEYDRSVV ANTVLLFYWL FETFGNFAKL INILIRHTYE GIWYSGQTGF ILTLFQVITC 
181:	ASILLLEALP KKPLMPHQHI HQTLTRRKPN PYDSANIFSR ITFSWMSGLM KTGYEKYLVE 
241:	ADLYKLPRNF SSEELSQKLE KNWENELKQK SNPSLSWAIC RTFGSKMLLA AFFKAIHDVL 
301:	AFTQPQLLRI LIKFVTDYNS ERQDDHSSLQ GFENNHPQKL PIVRGFLIAF AMFLVGFTQT 
361:	SVLHQYFLNV FNTGMYIKSA LTALIYQKSL VLSNEASGLS STGDIVNLMS VDVQKLQDLT 
421:	QWLNLIWSGP FQIIICLYSL YKLLGNSMWV GVIILVIMMP LNSFLMRIQK KLQKSQMKYK 
481:	DERTRVISEI LNNIKSLKLY AWEKPYREKL EEVRNNKELK NLTKLGCYMA VTSFQFNIVP 
541:	FLVSCCTFAV FVYTEDRALT TDLVFPALTL FNLLSFPLMI IPMVLNSFIE ASVSIGRLFT 
601:	FFTNEELQPD SVQRLPKVKN IGDVAINIGD DATFLWQRKP EYKVALKNIN FQAKKGNLTC 
661:	IVGKVGSGKT ALLSCMLGDL FRVKGFATVH GSVAYVSQVP WIMNGTVKEN ILFGHRYDAE 
721:	FYEKTIKACA LTIDLAILMD GDKTLVGEKG ISLSGGQKAR LSLARAVYAR ADTYLLDDPL 
781:	AAVDEHVARH LIEHVLGPNG LLHTKTKVLA TNKVSALSIA DSIALLDNGE ITQQGTYDEI 
841:	TKDADSPLWK LLNNYGKKNN GKSNEFGDSS ESSVRESSIP VEGELEQLQK LNDLDFGNSD 
901:	AISLRRASDA TLGSIDFGDD ENIAKREHRE QGKVKWNIYL EYAKACNPKS VCVFILFIVI 
961:	SMFLSVMGNV WLKHWSEVNS RYGSNPNAAR YLAIYFALGI GSALATLIQT IVLWVFCTIH 
1021:	ASKYLHNLMT NSVLRAPMTF FETTPIGRIL NRFSNDIYKV DALLGRTFSQ FFVNAVKVTF 
1081:	TITVICATTW QFIFIIIPLS VFYIYYQQYY LRTSRELRRL DSITRSPIYS HFQETLGGLA 
1141:	TVRGYSQQKR FSHINQCRID NNMSAFYPSI NANRWLAYRL ELIGSIIILG AATLSVFRLK 
1201:	QGTLTAGMVG LSLSYALQIT QTLNWIVRMT VEVETNIVSV ERIKEYADLK SEAPLIVEGH 
1261:	RPPKEWPSQG DIKFNNYSTR YRPELDLVLK HINIHIKPNE KVGIVGRTGA GKSSLTLALF 
1321:	RMIEASEGNI VIDNIAINEI GLYDLRHKLS IIPQDSQVFE GTVRENIDPI NQYTDEAIWR 
1381:	ALELSHLKEH VLSMSNDGLD AQLTEGGGNL SVGQRQLLCL ARAMLVPSKI LVLDEATAAV 
1441:	DVETDKVVQE TIRTAFKDRT ILTIAHRLNT IMDSDRIIVL DNGKVAEFDS PGQLLSDNKS 
1501:	LFYSLCMEAG LVNEN