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3.A.1.208.42
MRP4 ABC anthocyanin/phytic acid efflux porter of 1510 aas and 12 TMSs.  It exports anthocyanin in aleurone tissues ().  ABC transporter that may affect phytic acid transport and compartmentalization. It function directly or indirectly in removing phytic acid from the cytosol. and is required for phytic acid accumulation in developing seeds. It is expressed most highly in embryos, but also in immature endosperm, germinating seed and vegetative tissues. Silencing expression of this transporter in an embryo-specific manner produced low-phytic-acid, high-Pi transgenic maize seeds that germinate normally (Shi et al. 2007). Phytic acid is the primary storage form of phosphorus in cereal grains and other plant seeds.

Accession Number:A7KVC2
Protein Name:ABC transporter C family MRP4
Length:1510
Molecular Weight:166790.00
Species:Zea mays (Maize) [4577]
Number of TMSs:18
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MPPSFPSLPL PEAVAATAHA ALLALAALLL LLRAARALAS RCASCLKAPR RRGGPAVVVG 
61:	DGAGGALAAA TAGAWHRAVL ASCAYALLSQ VAVLSYEVAV AGSRVSARAL LLPAVQAVSW 
121:	AALLALALQA RAVGWARFPA LVRLWWVVSF ALCVVIAYDD SRRLIGQGAR AVDYAHMVAN 
181:	FASVPALGFL CLVGVMGSTG LELEFTEDGN GLHEPLLLGR QRREAEEELG CLRVTPYADA 
241:	GILSLATLSW LSPLLSVGAQ RPLELADIPL LAHKDRAKSC YKAMSAHYER QRLEYPGREP 
301:	SLTWAILKSF WREAAVNGTF AAVNTIVSYV GPYLISYFVD YLSGNIAFPH EGYILASIFF 
361:	VAKLLETLTA RQWYLGVDIM GIHVKSGLTA MVYRKGLRLS NASRQSHTSG EIVNYMAVDV 
421:	QRVGDYAWYF HDIWMLPLQI ILALAILYKN VGIAMVSTLV ATVLSIAASV PVAKLQEHYQ 
481:	DKLMASKDER MRKTSECLKN MRILKLQAWE DRYRLQLEEM RNVECRWLRW ALYSQAAVTF 
541:	VFWSSPIFVA VITFGTCILL GGQLTAGGVL SALATFRILQ EPLRNFPDLI SMMAQTRVSL 
601:	DRLSHFLQQE ELPDDATINV PQSSTDKAVD IKDGAFSWNP YTLTPTLSDI HLSVVRGMRV 
661:	AVCGVIGSGK SSLLSSILGE IPKLCGHVRI SGTAAYVPQT AWIQSGNIEE NILFGSQMDR 
721:	QRYKRVIAAC CLKKDLELLQ YGDQTVIGDR GINLSGGQKQ RVQLARALYQ DADIYLLDDP 
781:	FSAVDAHTGS ELFKEYILTA LATKTVIYVT HQVEFLPAAD LILVLKDGHI TQAGKYDDLL 
841:	QAGTDFNALV SAHKEAIETM DIFEDSDSDT VSSIPNKRLT PSISNIDNLK NKMCENGQPS 
901:	NTRGIKEKKK KEERKKKRTV QEEERERGKV SSKVYLSYMG EAYKGTLIPL IILAQTMFQV 
961:	LQIASNWWMA WANPQTEGDA PKTDSVVLLV VYMSLAFGSS LFVFMRSLLV ATFGLAAAQK 
1021:	LFIKMLRCVF RAPMSFFDTT PSGRILNRVS VDQSVVDLDI AFRLGGFAST TIQLLGIVAV 
1081:	MSKVTWQVLI LIVPMAVACM WMQRYYIASS RELTRILSVQ KSPVIHLFSE SIAGAATIRG 
1141:	FGQEKRFMKR NLYLLDCFAR PLFSSLAAIE WLCLRMELLS TFVFAFCMAI LVSFPPGTIE 
1201:	PSMAGLAVTY GLNLNARMSR WILSFCKLEN RIISVERIYQ YCRLPSEAPL IIENCRPPSS 
1261:	WPQNGNIELI DLKVRYKDDL PLVLHGVSCM FPGGKKIGIV GRTGSGKSTL IQALFRLIEP 
1321:	TGGKIIIDNI DISAIGLHDL RSRLSIIPQD PTLFEGTIRM NLDPLEECTD QEIWEALEKC 
1381:	QLGEVIRSKE EKLDSPVLEN GDNWSVGQRQ LIALGRALLK QAKILVLDEA TASVDTATDN 
1441:	LIQKIIRSEF KDCTVCTIAH RIPTVIDSDL VLVLSDGKIA EFDTPQRLLE DKSSMFIQLV 
1501:	SEYSTRSSCI