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