ID   VMA21_DROSI             Reviewed;         105 AA.
AC   B4QJ33;
DT   16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 55.
DE   RecName: Full=Vacuolar ATPase assembly integral membrane protein VMA21 homolog {ECO:0000255|HAMAP-Rule:MF_03058};
GN   ORFNames=GD14890;
OS   Drosophila simulans (Fruit fly).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Ephydroidea;
OC   Drosophilidae; Drosophila; Sophophora.
OX   NCBI_TaxID=7240;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17994087; DOI=10.1038/nature06341;
RG   Drosophila 12 genomes consortium;
RT   "Evolution of genes and genomes on the Drosophila phylogeny.";
RL   Nature 450:203-218(2007).
CC   -!- FUNCTION: Required for the assembly of the V0 complex of the vacuolar
CC       ATPase (V-ATPase) in the endoplasmic reticulum. {ECO:0000255|HAMAP-
CC       Rule:MF_03058}.
CC   -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC       {ECO:0000255|HAMAP-Rule:MF_03058}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_03058}. Endoplasmic reticulum-Golgi
CC       intermediate compartment membrane {ECO:0000255|HAMAP-Rule:MF_03058};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_03058}.
CC       Cytoplasmic vesicle, COPII-coated vesicle membrane {ECO:0000255|HAMAP-
CC       Rule:MF_03058}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_03058}.
CC   -!- SIMILARITY: Belongs to the VMA21 family. {ECO:0000255|HAMAP-
CC       Rule:MF_03058}.
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DR   EMBL; CM000363; EDX11250.1; -; Genomic_DNA.
DR   RefSeq; XP_002085665.1; XM_002085629.2.
DR   AlphaFoldDB; B4QJ33; -.
DR   STRING; 7240.B4QJ33; -.
DR   EnsemblMetazoa; FBtr0214800; FBpp0213292; FBgn0186562.
DR   GeneID; 6738870; -.
DR   HOGENOM; CLU_143588_2_0_1; -.
DR   OMA; PYFRGNE; -.
DR   PhylomeDB; B4QJ33; -.
DR   Proteomes; UP000000304; Chromosome 3l.
DR   Bgee; FBgn0186562; Expressed in embryo and 3 other tissues.
DR   GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0033116; C:endoplasmic reticulum-Golgi intermediate compartment membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0012507; C:ER to Golgi transport vesicle membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0070072; P:vacuolar proton-transporting V-type ATPase complex assembly; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_03058; VMA21; 1.
DR   InterPro; IPR019013; Vma21.
DR   PANTHER; PTHR31792; PTHR31792; 1.
DR   Pfam; PF09446; VMA21; 1.
PE   3: Inferred from homology;
KW   Cytoplasmic vesicle; Endoplasmic reticulum; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..105
FT                   /note="Vacuolar ATPase assembly integral membrane protein
FT                   VMA21 homolog"
FT                   /id="PRO_0000377575"
FT   TOPO_DOM        1..36
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03058"
FT   TRANSMEM        37..57
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03058"
FT   TOPO_DOM        58..68
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03058"
FT   TRANSMEM        69..89
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03058"
FT   TOPO_DOM        90..105
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03058"
FT   REGION          1..26
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   105 AA;  11355 MW;  B908113DF9C53DCC CRC64;
     MSTKNKKAAG GNGGAPKQTR QQSHDSQDYS SFKTVLFYCM LIVFLPVLTF FVLKGFVLDQ
     FLDISEVKVN IASAVGAVVA LHIALGLYIY RAYFGAPGSK GSKTD