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(-) Description

Title :  ATG8 TRANSFER FROM ATG7 TO ATG3: A DISTINCTIVE E1-E2 ARCHITECTURE AND MECHANISM IN THE AUTOPHAGY PATHWAY
 
Authors :  A. M. Taherbhoy, S. W. Tait, S. E. Kaiser, A. H. Williams, A. Deng, A. Nour M. Hammel, I. Kurinov, C. O. Rock, D. R. Green, B. A. Schulman
Date :  30 Jul 11  (Deposition) - 23 Nov 11  (Release) - 23 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.25
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Atg7, Autophagy, E1, Ligase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. M. Taherbhoy, S. W. Tait, S. E. Kaiser, A. H. Williams, A. Deng, A. Nourse, M. Hammel, I. Kurinov, C. O. Rock, D. R. Green, B. A. Schulman
Atg8 Transfer From Atg7 To Atg3: A Distinctive E1-E2 Architecture And Mechanism In The Autophagy Pathway.
Mol. Cell V. 44 451 2011
PubMed-ID: 22055190  |  Reference-DOI: 10.1016/J.MOLCEL.2011.08.034

(-) Compounds

Molecule 1 - UBIQUITIN-LIKE MODIFIER-ACTIVATING ENZYME ATG7
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentCTD, UNP RESIDUES 289-630
    GeneATG7, APG7, CVT2, YHR171W
    Organism CommonYEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
    SynonymATG12-ACTIVATING ENZYME E1 ATG7, AUTOPHAGY-RELATED PROTEIN 7, CYTOPLASM TO VACUOLE TARGETING PROTEIN 2

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (2x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:485 , CYS A:488 , CYS A:569 , CYS A:572BINDING SITE FOR RESIDUE ZN A 252

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3T7E)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3T7E)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3T7E)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3T7E)

(-) Exons   (0, 0)

(no "Exon" information available for 3T7E)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:316
 aligned with ATG7_YEAST | P38862 from UniProtKB/Swiss-Prot  Length:630

    Alignment length:322
                                   302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592       602       612  
           ATG7_YEAST   293 DPLKIADQSVDLNLKLMKWRILPDLNLDIIKNTKVLLLGAGTLGCYVSRALIAWGVRKITFVDNGTVSYSNPVRQALYNFEDCGKPKAELAAASLKRIFPLMDATGVKLSIPMIGHKLVNEEAQHKDFDRLRALIKEHDIIFLLVDSRESRWLPSLLSNIENKTVINAALGFDSYLVMRHGNRDEQSSKQLGCYFCHDVVAPTDSLTDRTLDQMCTVTRPGVAMMASSLAVELMTSLLQTKYSGSETTVLGDIPHQIRGFLHNFSILKLETPAYEHCPACSPKVIEAFTDLGWEFVKKALEHPLYLEEISGLSVIKQEVERL 614
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhh.....hhhhhh.eeeee..hhhhhhhhhhhhhh...eeeee.......hhhhhh...hhhhh..hhhhhhhhhhhhhh...eeeee............hhhhhhhhhhhhhhhhhhh.eeee...hhhhhhhhhhhhhhh..eeeeeee...eeeeee...------..................hhhhh........hhhhhhhhhhhhhhhhhhh........ee..ee...eeeee....eeeee...........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3t7e A 293 DPLKIADQSVDLNLKLMKWRILPDLNLDIIKNTKVLLLGAGTLGCYVSRALIAWGVRKITFVDNGTVSYSNPVRQALYNFEDCGKPKAELAAASLKRIFPLMDATGVKLSIPMIGHKLVNEEAQHKDFDRLRALIKEHDIIFLLVDSRESRWLPSLLSNIENKTVINAALGFDSYLVMRHGN------KQLGCYFCHDVVAPTDSLTDRTLDQMCTVTRPGVAMMASSLAVELMTSLLQTKYSGSETTVLGDIPHQIRGFLHNFSILKLETPAYEHCPACSPKVIEAFTDLGWEFVKKALEHPLYLEEISGLSVIKQEVERL 614
                                   302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472 |     482       492       502       512       522       532       542       552       562       572       582       592       602       612  
                                                                                                                                                                                                               474    481                                                                                                                                     

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 3T7E)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3T7E)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3T7E)

(-) Gene Ontology  (21, 21)

Asymmetric Unit(hide GO term definitions)
Chain A   (ATG7_YEAST | P38862)
molecular function
    GO:0019778    Atg12 activating enzyme activity    Catalysis of the activation of the small ubiquitin-related modifier APG12, through the formation of an ATP-dependent high-energy thiolester bond.
    GO:0019779    Atg8 activating enzyme activity    Catalysis of the activation of the small ubiquitin-related modifier APG8, through the formation of an ATP-dependent high-energy thiolester bond.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0008641    small protein activating enzyme activity    Catalysis of the activation of small proteins, such as ubiquitin or ubiquitin-like proteins, through the formation of an ATP-dependent high-energy thiolester bond.
biological process
    GO:0006501    C-terminal protein lipidation    The covalent attachment of a lipid group to the carboxy terminus of a protein.
    GO:0006914    autophagy    The process in which cells digest parts of their own cytoplasm; allows for both recycling of macromolecular constituents under conditions of cellular stress and remodeling the intracellular structure for cell differentiation.
    GO:0000422    autophagy of mitochondrion    The autophagic process in which mitochondria are delivered to the vacuole and degraded in response to changing cellular conditions.
    GO:0006995    cellular response to nitrogen starvation    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of deprivation of nitrogen.
    GO:0044805    late nucleophagy    A type of nucleophagy, distinct from piecemeal microautophagy of the nucleus (PNM) where the nuclear material is delivered to the vacuole/lysosome for breakdown and recycling later than observed for PNM.
    GO:0016236    macroautophagy    The major inducible pathway for the general turnover of cytoplasmic constituents in eukaryotic cells, it is also responsible for the degradation of active cytoplasmic enzymes and organelles during nutrient starvation. Macroautophagy involves the formation of double-membrane-bounded autophagosomes which enclose the cytoplasmic constituent targeted for degradation in a membrane-bounded structure. Autophagosomes then fuse with a lysosome (or vacuole) releasing single-membrane-bounded autophagic bodies that are then degraded within the lysosome (or vacuole). Though once thought to be a purely non-selective process, it appears that some types of macroautophagy, e.g. macropexophagy, macromitophagy, may involve selective targeting of the targets to be degraded.
    GO:0034727    piecemeal microautophagy of nucleus    Degradation of a cell nucleus by lysosomal microautophagy.
    GO:0030163    protein catabolic process    The chemical reactions and pathways resulting in the breakdown of a protein by the destruction of the native, active configuration, with or without the hydrolysis of peptide bonds.
    GO:0032258    protein localization by the CVT pathway    A cytoplasm to vacuole targeting pathway that uses machinery common with autophagy. The CVT vesicle is formed when the receptor protein, Atg19, binds to the complexes of the target protein (aminopeptidase or alpha-mannosidase homododecamers), forming the Cvt complex. Atg11 binds to Atg9 and transports the CVT complex to the pre-autophagosome (PAS). The phagophore membrane expands around the CVT complex (excluding bulk cytoplasm) forming the CVT vesicle. This pathway is mostly observed in yeast.
    GO:0032446    protein modification by small protein conjugation    A protein modification process in which one or more groups of a small protein, such as ubiquitin or a ubiquitin-like protein, are covalently attached to a target protein.
    GO:0015031    protein transport    The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0097632    extrinsic component of pre-autophagosomal structure membrane    The component of the pre-autophagosomal structure membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0000407    pre-autophagosomal structure    Punctate structures proximal to the endoplasmic reticulum which are the sites where the Atg machinery assembles upon autophagy induction.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        ATG7_YEAST | P388622li5 3rui 3ruj 3t7f 3t7g 3t7h 3vh1 3vh2 3vh3 3vh4 4gsj 4gsk 4gsl

(-) Related Entries Specified in the PDB File

3t7f 3t7g 3t7h