ATG8_KLULA
ID ATG8_KLULA Reviewed; 124 AA.
AC Q6CMF8;
DT 26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT 16-AUG-2004, sequence version 1.
DT 25-MAY-2022, entry version 109.
DE RecName: Full=Autophagy-related protein 8;
DE AltName: Full=Autophagy-related ubiquitin-like modifier ATG8;
DE Flags: Precursor;
GN Name=ATG8; OrderedLocusNames=KLLA0E20669g;
OS Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 /
OS NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Kluyveromyces.
OX NCBI_TaxID=284590;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37;
RX PubMed=15229592; DOI=10.1038/nature02579;
RA Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA Weissenbach J., Wincker P., Souciet J.-L.;
RT "Genome evolution in yeasts.";
RL Nature 430:35-44(2004).
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 8 residues are removed to expose Gly-116 at the C-
CC 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; CR382125; CAG99968.1; -; Genomic_DNA.
DR RefSeq; XP_454881.1; XM_454881.1.
DR AlphaFoldDB; Q6CMF8; -.
DR SMR; Q6CMF8; -.
DR STRING; 28985.XP_454881.1; -.
DR EnsemblFungi; CAG99968; CAG99968; KLLA0_E20593g.
DR GeneID; 2894517; -.
DR KEGG; kla:KLLA0_E20593g; -.
DR eggNOG; KOG1654; Eukaryota.
DR HOGENOM; CLU_119276_0_1_1; -.
DR InParanoid; Q6CMF8; -.
DR OMA; AVYQEHK; -.
DR Proteomes; UP000000598; Chromosome E.
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; IEA:EnsemblFungi.
DR GO; GO:0019898; C:extrinsic component of membrane; IEA:EnsemblFungi.
DR GO; GO:0000329; C:fungal-type vacuole membrane; IEA:EnsemblFungi.
DR GO; GO:0000407; C:phagophore assembly site; IEA:EnsemblFungi.
DR GO; GO:0120095; C:vacuole-isolation membrane contact site; IEA:EnsemblFungi.
DR GO; GO:0008429; F:phosphatidylethanolamine binding; IEA:EnsemblFungi.
DR GO; GO:0031386; F:protein tag; IEA:EnsemblFungi.
DR GO; GO:0000422; P:autophagy of mitochondrion; IEA:EnsemblFungi.
DR GO; GO:0032258; P:cytoplasm to vacuole transport by the Cvt pathway; IEA:EnsemblFungi.
DR GO; GO:0006888; P:endoplasmic reticulum to Golgi vesicle-mediated transport; IEA:EnsemblFungi.
DR GO; GO:0044805; P:late nucleophagy; IEA:EnsemblFungi.
DR GO; GO:0061025; P:membrane fusion; IEA:EnsemblFungi.
DR GO; GO:0034727; P:piecemeal microautophagy of the nucleus; IEA:EnsemblFungi.
DR GO; GO:0034497; P:protein localization to phagophore assembly site; IEA:EnsemblFungi.
DR GO; GO:0071211; P:protein targeting to vacuole involved in autophagy; IEA:EnsemblFungi.
DR GO; GO:0031503; P:protein-containing complex localization; IEA:EnsemblFungi.
DR GO; GO:0016241; P:regulation of macroautophagy; IEA:EnsemblFungi.
DR GO; GO:1905153; P:regulation of membrane invagination; IEA:EnsemblFungi.
DR GO; GO:0061709; P:reticulophagy; IEA:EnsemblFungi.
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..116
FT /note="Autophagy-related protein 8"
FT /id="PRO_0000017220"
FT PROPEP 117..124
FT /note="Removed in mature form"
FT /evidence="ECO:0000250|UniProtKB:P38182"
FT /id="PRO_0000017221"
FT SITE 116..117
FT /note="Cleavage; by ATG4"
FT /evidence="ECO:0000250|UniProtKB:P38182"
FT LIPID 116
FT /note="Phosphatidylethanolamine amidated glycine"
FT /evidence="ECO:0000250|UniProtKB:P38182"
SQ SEQUENCE 124 AA; 14269 MW; 897BBD081B58C3D1 CRC64;
MKSAFKSEFP FEKRKAESER IVQKFHNRIP VICERGGKSD IPDIDKRKYL VPGDLTVGQF
VYVIRKRIKL PAEKAIFIFV NDTLPPTAAL MSSIYQQHKD KDGFLYVSYS SENTFGDDAL
FSEE
