ID   DAD1_CITUN              Reviewed;         115 AA.
AC   Q9ZWQ7;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   25-MAY-2022, entry version 68.
DE   RecName: Full=Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1;
DE            Short=Oligosaccharyl transferase subunit DAD1;
DE   AltName: Full=CitDAD-1-1;
DE   AltName: Full=Defender against cell death 1;
DE            Short=DAD-1;
GN   Name=DAD1;
OS   Citrus unshiu (Satsuma mandarin) (Citrus nobilis var. unshiu).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Sapindales; Rutaceae; Aurantioideae; Citrus.
OX   NCBI_TaxID=55188;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Satsuma Mandarin;
RX   PubMed=10786637; DOI=10.1016/s0167-4781(99)00243-2;
RA   Moriguchi T., Komatsu A., Kita M., Akimitsu K., Endo-Inagaki T., Omura M.;
RT   "Molecular cloning of a homologue of dad-1 gene in citrus: distinctive
RT   expression during fruit development.";
RL   Biochim. Biophys. Acta 1490:198-202(2000).
CC   -!- FUNCTION: Subunit of the oligosaccharyl transferase (OST) complex that
CC       catalyzes the initial transfer of a defined glycan
CC       (Glc(3)Man(9)GlcNAc(2) in eukaryotes) from the lipid carrier dolichol-
CC       pyrophosphate to an asparagine residue within an Asn-X-Ser/Thr
CC       consensus motif in nascent polypeptide chains, the first step in
CC       protein N-glycosylation. N-glycosylation occurs cotranslationally and
CC       the complex associates with the Sec61 complex at the channel-forming
CC       translocon complex that mediates protein translocation across the
CC       endoplasmic reticulum (ER). All subunits are required for a maximal
CC       enzyme activity. {ECO:0000250|UniProtKB:P46964}.
CC   -!- PATHWAY: Protein modification; protein glycosylation.
CC   -!- SUBUNIT: Component of the oligosaccharyltransferase (OST) complex.
CC       {ECO:0000250|UniProtKB:P46964}.
CC   -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane {ECO:0000250};
CC       Multi-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the DAD/OST2 family. {ECO:0000305}.
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DR   EMBL; AB011798; BAA36555.1; -; mRNA.
DR   AlphaFoldDB; Q9ZWQ7; -.
DR   SMR; Q9ZWQ7; -.
DR   UniPathway; UPA00378; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0008250; C:oligosaccharyltransferase complex; IEA:InterPro.
DR   GO; GO:0006486; P:protein glycosylation; IEA:UniProtKB-UniPathway.
DR   InterPro; IPR003038; DAD/Ost2.
DR   PANTHER; PTHR10705; PTHR10705; 1.
DR   Pfam; PF02109; DAD; 1.
DR   PIRSF; PIRSF005588; DAD; 1.
PE   3: Inferred from homology;
KW   Apoptosis; Endoplasmic reticulum; Membrane; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..115
FT                   /note="Dolichyl-diphosphooligosaccharide--protein
FT                   glycosyltransferase subunit DAD1"
FT                   /id="PRO_0000124022"
FT   TOPO_DOM        1..31
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        32..52
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        53..55
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        56..76
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        77..94
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        95..115
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   115 AA;  12547 MW;  7EC618FB13325060 CRC64;
     MARSTGKDAQ ALFHSLRSAY AATPTTLKII DLYVGFAVFT ALIQVVYMAI VGSFPFNSFL
     SGVLSCVGTA VLAVCLRIQV NKDNKEFKDL PPERAFADFV LCNLVLHLVI MNFLG