ID   ZEA7_MAIZE              Reviewed;         240 AA.
AC   P04703;
DT   13-AUG-1987, integrated into UniProtKB/Swiss-Prot.
DT   13-AUG-1987, sequence version 1.
DT   25-MAY-2022, entry version 74.
DE   RecName: Full=Zein-alpha A20;
DE   AltName: Full=19 kDa zein A20;
DE   Flags: Precursor;
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].
RX   PubMed=6897917; DOI=10.1002/j.1460-2075.1982.tb01318.x;
RA   Geraghty D.E., Messing J., Rubenstein I.;
RT   "Sequence analysis and comparison of cDNAs of the zein multigene family.";
RL   EMBO J. 1:1329-1335(1982).
CC   -!- FUNCTION: Zeins are major seed storage proteins.
CC   -!- MISCELLANEOUS: The alpha zeins of 19 kDa and 22 kDa account for 70% of
CC       the total zein fraction. They are encoded by a large multigene family.
CC   -!- MISCELLANEOUS: Structurally, 22K and 19K zeins are composed of nine
CC       adjacent, topologically antiparallel helices clustered within a
CC       distorted cylinder. {ECO:0000250|UniProtKB:P04698}.
CC   -!- SIMILARITY: Belongs to the zein family. {ECO:0000305}.
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DR   EMBL; V01476; CAA24723.1; -; mRNA.
DR   PIR; A22762; ZIZM2.
DR   AlphaFoldDB; P04703; -.
DR   STRING; 4577.AF546188.1_FGP005; -.
DR   PaxDb; P04703; -.
DR   MaizeGDB; 58096; -.
DR   Proteomes; UP000007305; Unplaced.
DR   ExpressionAtlas; P04703; baseline and differential.
DR   GO; GO:0045735; F:nutrient reservoir activity; IEA:UniProtKB-KW.
DR   InterPro; IPR002530; Zein.
DR   Pfam; PF01559; Zein; 1.
PE   2: Evidence at transcript level;
KW   Reference proteome; Repeat; Seed storage protein; Signal; Storage protein.
FT   SIGNAL          1..21
FT   CHAIN           22..240
FT                   /note="Zein-alpha A20"
FT                   /id="PRO_0000041617"
SQ   SEQUENCE   240 AA;  26241 MW;  2C44D3574C2A3C2E CRC64;
     MATKIFSLLM LLALSACVAN ATIFPQCSQA PIASLLPPYL PSMIASVCEN PALQPYRLQQ
     AIAASNIPLS PLLFQQSPAL SLVQSLVQTI RAQQLQQLVL PVINQVALAN LSPYSQQQQF
     LPFNQLSTLN PAAYLQQQLL PFSQLATAYS QQQQLLPFNQ LAALNPAAYL QQQILLPFSQ
     LAAANRASFL TQQQLLPFYQ QFAANPATLL QLQQLLPFVQ LALTDPAASY QQHIIGGALF