ATG3_CANAL
ID ATG3_CANAL Reviewed; 333 AA.
AC Q5ABQ7; A0A1D8PCB8; Q5ABF0;
DT 19-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT 26-APR-2005, sequence version 1.
DT 03-AUG-2022, entry version 81.
DE RecName: Full=Autophagy-related protein 3;
DE AltName: Full=Autophagy-related E2-like conjugation enzyme ATG3;
GN Name=ATG3; OrderedLocusNames=CAALFM_C100860WA;
GN ORFNames=CaO19.13441, CaO19.6020;
OS Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Candida/Lodderomyces clade; Candida.
OX NCBI_TaxID=237561;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=15123810; DOI=10.1073/pnas.0401648101;
RA Jones T., Federspiel N.A., Chibana H., Dungan J., Kalman S., Magee B.B.,
RA Newport G., Thorstenson Y.R., Agabian N., Magee P.T., Davis R.W.,
RA Scherer S.;
RT "The diploid genome sequence of Candida albicans.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:7329-7334(2004).
RN [2]
RP GENOME REANNOTATION.
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=17419877; DOI=10.1186/gb-2007-8-4-r52;
RA van het Hoog M., Rast T.J., Martchenko M., Grindle S., Dignard D.,
RA Hogues H., Cuomo C., Berriman M., Scherer S., Magee B.B., Whiteway M.,
RA Chibana H., Nantel A., Magee P.T.;
RT "Assembly of the Candida albicans genome into sixteen supercontigs aligned
RT on the eight chromosomes.";
RL Genome Biol. 8:RESEARCH52.1-RESEARCH52.12(2007).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=24025428; DOI=10.1186/gb-2013-14-9-r97;
RA Muzzey D., Schwartz K., Weissman J.S., Sherlock G.;
RT "Assembly of a phased diploid Candida albicans genome facilitates allele-
RT specific measurements and provides a simple model for repeat and indel
RT structure.";
RL Genome Biol. 14:RESEARCH97.1-RESEARCH97.14(2013).
CC -!- FUNCTION: E2 conjugating enzyme required for the cytoplasm to vacuole
CC transport (Cvt) and autophagy. 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. Responsible
CC for the E2-like covalent binding of phosphatidylethanolamine to the C-
CC terminal Gly of ATG8. The ATG12-ATG5 conjugate plays a role of an E3
CC and promotes the transfer of ATG8 from ATG3 to phosphatidylethanolamine
CC (PE). This step is required for the membrane association of ATG8. The
CC formation of the ATG8-phosphatidylethanolamine conjugate is essential
CC for autophagy and for the cytoplasm to vacuole transport (Cvt). The
CC ATG8-PE conjugate mediates tethering between adjacent membranes and
CC stimulates membrane hemifusion, leading to expansion of the
CC autophagosomal membrane during autophagy (By similarity).
CC {ECO:0000250}.
CC -!- SUBUNIT: Monomer. Interacts with ATG8 through an intermediate thioester
CC bond through the C-terminal Gly of ATG8. Also interacts with the 40
CC amino acid C-terminal region of the E1-like ATG7 enzyme. Interacts also
CC with the ATG12-ATG5 conjugate. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- DOMAIN: The N-terminal region is involved in phosphatidylethanolamine-
CC binding and is required for ATG8-PE conjugation. {ECO:0000250}.
CC -!- DOMAIN: The flexible region (FR) is required for ATG7-binding.
CC {ECO:0000250}.
CC -!- DOMAIN: The handle region (HR) contains the ATG8 interaction motif
CC (AIM) and mediates binding to ATG8. It is crucial for the cytoplasm-to-
CC vacuole targeting pathway (By similarity). {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the ATG3 family. {ECO:0000305}.
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DR EMBL; CP017623; AOW25783.1; -; Genomic_DNA.
DR RefSeq; XP_718982.1; XM_713889.1.
DR AlphaFoldDB; Q5ABQ7; -.
DR SMR; Q5ABQ7; -.
DR STRING; 237561.Q5ABQ7; -.
DR PRIDE; Q5ABQ7; -.
DR GeneID; 3639358; -.
DR KEGG; cal:CAALFM_C100860WA; -.
DR CGD; CAL0000193447; orf19.13441.
DR VEuPathDB; FungiDB:C1_00860W_A; -.
DR eggNOG; KOG2981; Eukaryota.
DR HOGENOM; CLU_027518_2_0_1; -.
DR InParanoid; Q5ABQ7; -.
DR OrthoDB; 1432328at2759; -.
DR PRO; PR:Q5ABQ7; -.
DR Proteomes; UP000000559; Chromosome 1.
DR GO; GO:0000153; C:cytoplasmic ubiquitin ligase complex; IBA:GO_Central.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0061908; C:phagophore; IEA:EnsemblFungi.
DR GO; GO:0000407; C:phagophore assembly site; IEA:EnsemblFungi.
DR GO; GO:0019776; F:Atg8 ligase activity; IBA:GO_Central.
DR GO; GO:0000045; P:autophagosome assembly; IBA:GO_Central.
DR GO; GO:0000422; P:autophagy of mitochondrion; IBA:GO_Central.
DR GO; GO:0044804; P:autophagy of nucleus; IBA:GO_Central.
DR GO; GO:0006501; P:C-terminal protein lipidation; IEA:EnsemblFungi.
DR GO; GO:0032258; P:cytoplasm to vacuole transport by the Cvt pathway; IEA:EnsemblFungi.
DR GO; GO:0044805; P:late nucleophagy; IEA:EnsemblFungi.
DR GO; GO:0034727; P:piecemeal microautophagy of the nucleus; IEA:EnsemblFungi.
DR GO; GO:0006612; P:protein targeting to membrane; IEA:EnsemblFungi.
DR InterPro; IPR007135; Atg3/Atg10.
DR PANTHER; PTHR12866; PTHR12866; 1.
DR Pfam; PF03987; Autophagy_act_C; 1.
PE 3: Inferred from homology;
KW Autophagy; Cytoplasm; Protein transport; Reference proteome; Transport;
KW Ubl conjugation pathway.
FT CHAIN 1..333
FT /note="Autophagy-related protein 3"
FT /id="PRO_0000213576"
FT REGION 81..112
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 84..174
FT /note="Flexible region"
FT /evidence="ECO:0000250"
FT REGION 248..308
FT /note="Handle region"
FT /evidence="ECO:0000250"
FT REGION 278..300
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 244
FT /note="Glycyl thioester intermediate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 333 AA; 38620 MW; 7478664F0EB50243 CRC64;
MSLRSKLSSL REYLTPINHN SNFVTTGEIS PEEFVKAGDY LVYKFPTWQW GNDCPKNLQK
SFLPPDKQYL VTRHVPSYQR ASNYLTGEDK KGANPEEDDE EEEEEDEEGW VKSKKIHKVI
DDTHDSQINK GEEINDIDDF IDENAEEQEH DQIGDHELDD DEFDDLDIIN DSKNNKLRRF
DLYITYSTSY RVPKLYLVGF DSNGIPLLPQ QMFEDINSDY KDKTATIENL PVAHNTTSVS
IHPCKHSSVM KVLMKHSKLN KKNLQQKDES LSDDLSKLSV NEKKTQDEHS QINNDDKEEE
EEGIRVDHYL IIFLKFIASV TPGIEYDYTM DAL
