ID   ATG8_ASHGO              Reviewed;         120 AA.
AC   Q755X2;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 106.
DE   RecName: Full=Autophagy-related protein 8;
DE   AltName: Full=Autophagy-related ubiquitin-like modifier ATG8;
DE   Flags: Precursor;
GN   Name=ATG8; OrderedLocusNames=AER396W;
OS   Ashbya gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056)
OS   (Yeast) (Eremothecium gossypii).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Eremothecium.
OX   NCBI_TaxID=284811;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=15001715; DOI=10.1126/science.1095781;
RA   Dietrich F.S., Voegeli S., Brachat S., Lerch A., Gates K., Steiner S.,
RA   Mohr C., Poehlmann R., Luedi P., Choi S., Wing R.A., Flavier A.,
RA   Gaffney T.D., Philippsen P.;
RT   "The Ashbya gossypii genome as a tool for mapping the ancient Saccharomyces
RT   cerevisiae genome.";
RL   Science 304:304-307(2004).
RN   [2]
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=23749448; DOI=10.1534/g3.112.002881;
RA   Dietrich F.S., Voegeli S., Kuo S., Philippsen P.;
RT   "Genomes of Ashbya fungi isolated from insects reveal four mating-type
RT   loci, numerous translocations, lack of transposons, and distinct gene
RT   duplications.";
RL   G3 (Bethesda) 3:1225-1239(2013).
CC   -!- FUNCTION: Ubiquitin-like modifier involved in autophagosomes formation.
CC       With ATG4, mediates the delivery of the autophagosomes to the vacuole
CC       via the microtubule cytoskeleton. Required for selective autophagic
CC       degradation of the nucleus (nucleophagy) as well as for mitophagy which
CC       contributes to regulate mitochondrial quantity and quality by
CC       eliminating the mitochondria to a basal level to fulfill cellular
CC       energy requirements and preventing excess ROS production. Participates
CC       also in membrane fusion events that take place in the early secretory
CC       pathway. Also involved in endoplasmic reticulum-specific autophagic
CC       process and is essential for the survival of cells subjected to severe
CC       ER stress. The ATG8-PE conjugate mediates tethering between adjacent
CC       membranes and stimulates membrane hemifusion, leading to expansion of
CC       the autophagosomal membrane during autophagy.
CC       {ECO:0000250|UniProtKB:P38182}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasmic vesicle, autophagosome membrane
CC       {ECO:0000250|UniProtKB:P38182}; Lipid-anchor
CC       {ECO:0000250|UniProtKB:P38182}. Vacuole membrane
CC       {ECO:0000250|UniProtKB:P38182}; Lipid-anchor
CC       {ECO:0000250|UniProtKB:P38182}.
CC   -!- PTM: The C-terminal 5 residues are removed by ATG4 to expose Gly-115 at
CC       the C-terminus. The C-terminal Gly is then amidated with
CC       phosphatidylethanolamine by an activating system similar to that for
CC       ubiquitin. {ECO:0000250|UniProtKB:P38182}.
CC   -!- SIMILARITY: Belongs to the ATG8 family. {ECO:0000305}.
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DR   EMBL; AE016818; AAS53075.1; -; Genomic_DNA.
DR   RefSeq; NP_985251.1; NM_210605.1.
DR   AlphaFoldDB; Q755X2; -.
DR   SMR; Q755X2; -.
DR   STRING; 33169.AAS53075; -.
DR   EnsemblFungi; AAS53075; AAS53075; AGOS_AER396W.
DR   GeneID; 4621467; -.
DR   KEGG; ago:AGOS_AER396W; -.
DR   eggNOG; KOG1654; Eukaryota.
DR   HOGENOM; CLU_119276_0_1_1; -.
DR   InParanoid; Q755X2; -.
DR   OMA; AVYQEHK; -.
DR   Proteomes; UP000000591; Chromosome V.
DR   GO; GO:0005776; C:autophagosome; IBA:GO_Central.
DR   GO; GO:0000421; C:autophagosome membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0031410; C:cytoplasmic vesicle; IEA:UniProtKB-KW.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0000329; C:fungal-type vacuole membrane; IBA:GO_Central.
DR   GO; GO:0008429; F:phosphatidylethanolamine binding; IBA:GO_Central.
DR   GO; GO:0006995; P:cellular response to nitrogen starvation; IBA:GO_Central.
DR   GO; GO:0016236; P:macroautophagy; IBA:GO_Central.
DR   GO; GO:0015031; P:protein transport; IEA:UniProtKB-KW.
DR   InterPro; IPR004241; Atg8-like.
DR   InterPro; IPR029071; Ubiquitin-like_domsf.
DR   PANTHER; PTHR10969; PTHR10969; 1.
DR   Pfam; PF02991; ATG8; 1.
DR   SUPFAM; SSF54236; SSF54236; 1.
PE   3: Inferred from homology;
KW   Autophagy; Cytoplasmic vesicle; Lipoprotein; Membrane; Protein transport;
KW   Reference proteome; Transport; Ubl conjugation pathway; Vacuole.
FT   CHAIN           1..115
FT                   /note="Autophagy-related protein 8"
FT                   /id="PRO_0000017206"
FT   PROPEP          116..120
FT                   /note="Removed in mature form"
FT                   /evidence="ECO:0000250|UniProtKB:P38182"
FT                   /id="PRO_0000017207"
FT   SITE            115..116
FT                   /note="Cleavage; by ATG4"
FT                   /evidence="ECO:0000250|UniProtKB:P38182"
FT   LIPID           115
FT                   /note="Phosphatidylethanolamine amidated glycine"
FT                   /evidence="ECO:0000250|UniProtKB:P38182"
SQ   SEQUENCE   120 AA;  13993 MW;  25F44603363B1D8D CRC64;
     MSSFKSEYPF EKRKAESERI CSQFENRVPV ICERAEKSDI PEVDRRKYLV PADLTVGQFV
     YVIRRRIKLP AEKAIFIFVN DTLPPTAALM FAVYQEHKDK DGFLYVKYSG ENTFGSEENQ