ID   VDAC_MAIZE              Reviewed;         277 AA.
AC   P42057;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Outer plastidial membrane protein porin;
DE   AltName: Full=Voltage-dependent anion-selective channel protein;
DE            Short=VDAC;
GN   Name=POR1;
OS   Zea mays (Maize).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX   NCBI_TaxID=4577;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Merit; TISSUE=Root;
RX   PubMed=7523392; DOI=10.1016/s0021-9258(18)47312-7;
RA   Fischer K., Weber A., Brink S., Arbinger B., Schuenemann D., Borchert S.,
RA   Heldt H.W., Popp B., Benz R., Link T., Eckerskorn C., Fluegge U.I.;
RT   "Porins from plants. Molecular cloning and functional characterization of
RT   two new members of the porin family.";
RL   J. Biol. Chem. 269:25754-25760(1994).
CC   -!- FUNCTION: Forms a channel through the cell membrane that allows
CC       diffusion of small hydrophilic molecules. The channel adopts an open
CC       conformation at low or zero membrane potential and a closed
CC       conformation at potentials above 30-40 mV. The open state has a weak
CC       anion selectivity whereas the closed state is cation-selective (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid outer membrane. Note=Found in non-
CC       photosynthetic root plastids only.
CC   -!- DOMAIN: Consists mainly of membrane-spanning sided beta-sheets.
CC   -!- SIMILARITY: Belongs to the eukaryotic mitochondrial porin (TC 1.B.8.1)
CC       family. {ECO:0000305}.
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DR   EMBL; X73429; CAA51828.1; -; mRNA.
DR   PIR; S34146; S34146.
DR   AlphaFoldDB; P42057; -.
DR   SMR; P42057; -.
DR   STRING; 4577.GRMZM2G155021_P01; -.
DR   PaxDb; P42057; -.
DR   PRIDE; P42057; -.
DR   MaizeGDB; 106348; -.
DR   eggNOG; KOG3126; Eukaryota.
DR   Proteomes; UP000007305; Unplaced.
DR   ExpressionAtlas; P42057; baseline and differential.
DR   GO; GO:0032592; C:integral component of mitochondrial membrane; IDA:AgBase.
DR   GO; GO:0005741; C:mitochondrial outer membrane; IBA:GO_Central.
DR   GO; GO:0009527; C:plastid outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0046930; C:pore complex; IEA:UniProtKB-KW.
DR   GO; GO:0015288; F:porin activity; IEA:UniProtKB-KW.
DR   GO; GO:0008308; F:voltage-gated anion channel activity; IDA:AgBase.
DR   GO; GO:0006820; P:anion transport; IDA:AgBase.
DR   CDD; cd07306; Porin3_VDAC; 1.
DR   Gene3D; 2.40.160.10; -; 1.
DR   InterPro; IPR023614; Porin_dom_sf.
DR   InterPro; IPR001925; Porin_Euk.
DR   InterPro; IPR027246; Porin_Euk/Tom40.
DR   PANTHER; PTHR11743; PTHR11743; 1.
DR   Pfam; PF01459; Porin_3; 1.
DR   PROSITE; PS00558; EUKARYOTIC_PORIN; 1.
PE   2: Evidence at transcript level;
KW   Ion transport; Membrane; Plastid; Plastid outer membrane; Porin;
KW   Reference proteome; Transmembrane; Transmembrane beta strand; Transport.
FT   CHAIN           1..277
FT                   /note="Outer plastidial membrane protein porin"
FT                   /id="PRO_0000050528"
SQ   SEQUENCE   277 AA;  29977 MW;  2BE787804FEB5797 CRC64;
     MVVAVGLYTD IGKKTRDLLY KDYNTHQKFC LTTSSPNGVA ITAAGTRKNE SIFGELHTQI
     KNKKLTVDVK ANSESDLLTT ITVDEFGTPG LKSIINLVVP DQRSGKLEFQ YLHEYAGVNA
     SVGLNSNPMV NLSGAFGSKA LSVGVDVSFD TATSDFTKYN AALSLTSPDL IASLHLNNHG
     DTLVASYYHL VKNHSGTAVG AELSHSMSRN ESTLIFGSQH SLDPHTTIKT RFNNYGMASA
     LVQHEWRPKS FVTISGDVDT KAIEKSTKVG LSLVLKH