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(-) Description

Title :  STRUCTURE OF AN E6AP-UBCH7 COMPLEX: INSIGHTS INTO THE UBIQUITINATION PATHWAY
 
Authors :  L. Huang, E. Kinnucan, G. Wang, S. Beaudenon, P. M. Howley, J. M. Huibregtse, N. P. Pavletich
Date :  07 Oct 99  (Deposition) - 17 Nov 99  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,B,C
Keywords :  Bilobal Structure, Elongated Shape, E3 Ligase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  L. Huang, E. Kinnucan, G. Wang, S. Beaudenon, P. M. Howley, J. M. Huibregtse, N. P. Pavletich
Structure Of An E6Ap-Ubch7 Complex: Insights Into Ubiquitination By The E2-E3 Enzyme Cascade.
Science V. 286 1321 1999
PubMed-ID: 10558980  |  Reference-DOI: 10.1126/SCIENCE.286.5443.1321
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - E6AP HECT CATALYTIC DOMAIN, E3 LIGASE
    ChainsA, B, C
    EC Number6.3.2.-
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System VectorPGEX4T-3
    Expression System Vector TypePLASMID
    FragmentHECT DOMAIN OF HUMAN E6AP
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1D5F)

(-) Sites  (0, 0)

(no "Site" information available for 1D5F)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1D5F)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1D5F)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (10, 30)

Asymmetric/Biological Unit (10, 30)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_073209G568RUBE3A_HUMANUnclassified (AS)587781233A/B/CG545R
02UniProtVAR_073210M589KUBE3A_HUMANUnclassified (AS)587781244A/B/CM566K
03UniProtVAR_073211E607QUBE3A_HUMANUnclassified (AS)587781235A/B/CE584Q
04UniProtVAR_073212Q611EUBE3A_HUMANPolymorphism587782918A/B/CQ588E
05UniProtVAR_073213Q611PUBE3A_HUMANPolymorphism587782919A/B/CQ588P
06UniProtVAR_073214T679IUBE3A_HUMANUnclassified (AS)587781236A/B/CT656I
07UniProtVAR_073215L696RUBE3A_HUMANPolymorphism587782920A/B/CL673R
08UniProtVAR_073216F713CUBE3A_HUMANUnclassified (AS)587781237A/B/CF690C
09UniProtVAR_073217V785IUBE3A_HUMANPolymorphism587782910A/B/CV762I
10UniProtVAR_073218P850LUBE3A_HUMANUnclassified (AS)587781239A/B/CP827L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 3)

Asymmetric/Biological Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1HECTPS50237 HECT domain profile.UBE3A_HUMAN547-875
 
 
  3A:524-846
B:524-846
C:524-846

(-) Exons   (8, 24)

Asymmetric/Biological Unit (8, 24)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.4ENST000003979544ENSE00001530924chr15:25653795-2565376729UBE3A_HUMAN1-10100--
1.6cENST000003979546cENSE00001704572chr15:25650649-2565060842UBE3A_HUMAN10-24150--
1.7aENST000003979547aENSE00000815082chr15:25620910-25620612299UBE3A_HUMAN24-1241010--
1.8ENST000003979548ENSE00000815081chr15:25616959-256157131247UBE3A_HUMAN124-5394163A:497-516
B:497-516
C:497-516
20
20
20
1.9ENST000003979549ENSE00000778629chr15:25605674-25605530145UBE3A_HUMAN540-588493A:517-565
B:517-565
C:517-565
49
49
49
1.10ENST0000039795410ENSE00000778628chr15:25602043-25601838206UBE3A_HUMAN588-656693A:565-633
B:565-633
C:565-633
69
69
69
1.11ENST0000039795411ENSE00000778627chr15:25601203-25601039165UBE3A_HUMAN657-711553A:634-688
B:634-688
C:634-688
55
55
55
1.12ENST0000039795412ENSE00000815076chr15:25599830-25599675156UBE3A_HUMAN712-763523A:689-740
B:689-740
C:689-740
52
52
52
1.13ENST0000039795413ENSE00000815075chr15:25599573-2559950074UBE3A_HUMAN764-788253A:741-765
B:741-765
C:741-765
25
25
25
1.14ENST0000039795414ENSE00000815073chr15:25585375-25585232144UBE3A_HUMAN788-836493A:765-813
B:765-813
C:765-813
49
49
49
1.15bENST0000039795415bENSE00001243846chr15:25584404-255823962009UBE3A_HUMAN836-875403A:813-846
B:813-846
C:813-846
34
34
34

(-) Sequences/Alignments

Asymmetric/Biological 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:350
 aligned with UBE3A_HUMAN | Q05086 from UniProtKB/Swiss-Prot  Length:875

    Alignment length:350
                                   529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729       739       749       759       769       779       789       799       809       819       829       839       849       859       869
          UBE3A_HUMAN   520 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 869
               SCOP domains d1d5fa_ A: Ubiquitin-protein ligase E3a (E6ap)                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eee...hhhhhhhhhhhhh...hhhhhhh...eee........hhhhhhhhhhhhhhhhhhhhh.eee......eee........hhhhhhhhhhhhhhhh.........hhhhhhhh....hhhhhhhhhhhhhhhhhhhhhh............eeeee.....eeeee.............hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhh..........hhhhhhhhhhh.............eee......hhhhhhhhhhhhh.hhhhhhhhhhhhh........hhhhhh.eeeeeee......eeehhh.eeeeee..hhhhhhhhhhhhhhhh Sec.struct. author
             SAPs(SNPs) (1) ------------------------------------------------R--------------------K-----------------Q---E-------------------------------------------------------------------I----------------R----------------C-----------------------------------------------------------------------I----------------------------------------------------------------L------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -------------------------------------------------------------------------------------------P------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs) (2)
                    PROSITE ---------------------------HECT  PDB: A:524-846 UniProt: 547-875                                                                                                                                                                                                                                                                                               PROSITE
           Transcript 1 (1) Exon 1.8            ------------------------------------------------Exon 1.10  PDB: A:565-633 UniProt: 588-656                           Exon 1.11  PDB: A:634-688 UniProt: 657-711             Exon 1.12  PDB: A:689-740 UniProt: 712-763          Exon 1.13  PDB: A:741-765-----------------------------------------------Exon 1.15b  PDB: A:813-846         Transcript 1 (1)
           Transcript 1 (2) --------------------Exon 1.9  PDB: A:517-565 UniProt: 540-588        -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.14  PDB: A:765-813 UniProt: 788-836       --------------------------------- Transcript 1 (2)
                 1d5f A 497 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 846
                                   506       516       526       536       546       556       566       576       586       596       606       616       626       636       646       656       666       676       686       696       706       716       726       736       746       756       766       776       786       796       806       816       826       836       846

Chain B from PDB  Type:PROTEIN  Length:350
 aligned with UBE3A_HUMAN | Q05086 from UniProtKB/Swiss-Prot  Length:875

    Alignment length:350
                                   529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729       739       749       759       769       779       789       799       809       819       829       839       849       859       869
          UBE3A_HUMAN   520 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 869
               SCOP domains d1d5fb_ B: Ubiquitin-protein ligase E3a (E6ap)                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eee...hhhhhhhhhhhhhhhhhhhhhhh...eee........hhhhhhhhhhhhhhhh......eeee....eeee......hhhhhhhhhhhhhhhh..........hhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhh............ee...........ee...hhhhh.....hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh..........hhhhhhhhhh.............eee......hhhhhhhhhhhhhh..hhhhhhhhhhh........hhhhhh.eeeeeee......eeehhh.eeeeee..hhhhhhhhhhhhhh.. Sec.struct. author
             SAPs(SNPs) (1) ------------------------------------------------R--------------------K-----------------Q---E-------------------------------------------------------------------I----------------R----------------C-----------------------------------------------------------------------I----------------------------------------------------------------L------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -------------------------------------------------------------------------------------------P------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs) (2)
                    PROSITE ---------------------------HECT  PDB: B:524-846 UniProt: 547-875                                                                                                                                                                                                                                                                                               PROSITE
           Transcript 1 (1) Exon 1.8            ------------------------------------------------Exon 1.10  PDB: B:565-633 UniProt: 588-656                           Exon 1.11  PDB: B:634-688 UniProt: 657-711             Exon 1.12  PDB: B:689-740 UniProt: 712-763          Exon 1.13  PDB: B:741-765-----------------------------------------------Exon 1.15b  PDB: B:813-846         Transcript 1 (1)
           Transcript 1 (2) --------------------Exon 1.9  PDB: B:517-565 UniProt: 540-588        -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.14  PDB: B:765-813 UniProt: 788-836       --------------------------------- Transcript 1 (2)
                 1d5f B 497 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 846
                                   506       516       526       536       546       556       566       576       586       596       606       616       626       636       646       656       666       676       686       696       706       716       726       736       746       756       766       776       786       796       806       816       826       836       846

Chain C from PDB  Type:PROTEIN  Length:350
 aligned with UBE3A_HUMAN | Q05086 from UniProtKB/Swiss-Prot  Length:875

    Alignment length:350
                                   529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729       739       749       759       769       779       789       799       809       819       829       839       849       859       869
          UBE3A_HUMAN   520 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 869
               SCOP domains d1d5fc_ C: Ubiquitin-protein ligase E3a (E6ap)                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eee...hhhhhhhhhhhhhhhhhhhhhhh...eee........hhhhhhhhhhhhhhhhhhhhh.eee......eee......hhhhhhhhhhhhhhhhhh........hhhhhhhhh.......hhhhhhhhhhhhhhhhhh.............ee...........ee............hhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhh.hhhhhh.hhhhhhhhhhh.............eee......hhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhh.eeee.........eee....eeee....hhhhhhhhhhhhhhh. Sec.struct. author
             SAPs(SNPs) (1) ------------------------------------------------R--------------------K-----------------Q---E-------------------------------------------------------------------I----------------R----------------C-----------------------------------------------------------------------I----------------------------------------------------------------L------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) -------------------------------------------------------------------------------------------P------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs) (2)
                    PROSITE ---------------------------HECT  PDB: C:524-846 UniProt: 547-875                                                                                                                                                                                                                                                                                               PROSITE
           Transcript 1 (1) Exon 1.8            ------------------------------------------------Exon 1.10  PDB: C:565-633 UniProt: 588-656                           Exon 1.11  PDB: C:634-688 UniProt: 657-711             Exon 1.12  PDB: C:689-740 UniProt: 712-763          Exon 1.13  PDB: C:741-765-----------------------------------------------Exon 1.15b  PDB: C:813-846         Transcript 1 (1)
           Transcript 1 (2) --------------------Exon 1.9  PDB: C:517-565 UniProt: 540-588        -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.14  PDB: C:765-813 UniProt: 788-836       --------------------------------- Transcript 1 (2)
                 1d5f C 497 NPYLRLKVRRDHIIDDALVRLEMIAMENPADLKKQLYVEFEGEQGVDEGGVSKEFFQLVVEEIFNPDIGMFTYDESTKLFWFNPSSFETEGQFTLIGIVLGLAIYNNCILDVHFPMVVYRKLMGKKGTFRDLGDSHPVLYQSLKDLLEYEGNVEDDMMITFQISQTDLFGNPMMYDLKENGDKIPITNENRKEFVNLYSDYILNKSVEKQFKAFRRGFHMVTNESPLKYLFRPEEIELLICGSRNLDFQALEETTEYDGGYTRDSVLIREFWEIVHSFTDEQKRLFLQFTTGTDRAPVGGLGKLKMIIAKNGPDTERLPTSHTCFNVLLLPEYSSKEKLKERLLKAITYA 846
                                   506       516       526       536       546       556       566       576       586       596       606       616       626       636       646       656       666       676       686       696       706       716       726       736       746       756       766       776       786       796       806       816       826       836       846

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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  (1, 3)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1D5F)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1D5F)

(-) Gene Ontology  (27, 27)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C   (UBE3A_HUMAN | Q05086)
molecular function
    GO:0016874    ligase activity    Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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:0003713    transcription coactivator activity    Interacting selectively and non-covalently with a activating transcription factor and also with the basal transcription machinery in order to increase the frequency, rate or extent of transcription. Cofactors generally do not bind the template nucleic acid, but rather mediate protein-protein interactions between activating transcription factors and the basal transcription machinery.
    GO:0061630    ubiquitin protein ligase activity    Catalysis of the transfer of ubiquitin to a substrate protein via the reaction X-ubiquitin + S -> X + S-ubiquitin, where X is either an E2 or E3 enzyme, the X-ubiquitin linkage is a thioester bond, and the S-ubiquitin linkage is an amide bond: an isopeptide bond between the C-terminal glycine of ubiquitin and the epsilon-amino group of lysine residues in the substrate or, in the linear extension of ubiquitin chains, a peptide bond the between the C-terminal glycine and N-terminal methionine of ubiquitin residues.
    GO:0004842    ubiquitin-protein transferase activity    Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.
biological process
    GO:0030521    androgen receptor signaling pathway    Any series of molecular signals generated as a consequence of an androgen binding to its receptor.
    GO:0007420    brain development    The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).
    GO:0001541    ovarian follicle development    The process whose specific outcome is the progression of the ovarian follicle over time, from its formation to the mature structure.
    GO:0014068    positive regulation of phosphatidylinositol 3-kinase signaling    Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
    GO:0031398    positive regulation of protein ubiquitination    Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
    GO:0045944    positive regulation of transcription from RNA polymerase II promoter    Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0060736    prostate gland growth    The increase in size or mass of the prostate gland where the increase in size or mass has the specific outcome of the progression of the gland, from its formation to its mature state.
    GO:0070936    protein K48-linked ubiquitination    A protein ubiquitination process in which a polymer of ubiquitin, formed by linkages between lysine residues at position 48 of the ubiquitin monomers, is added to a protein. K48-linked ubiquitination targets the substrate protein for degradation.
    GO:0051865    protein autoubiquitination    The ubiquitination by a protein of one or more of its own amino acid residues, or residues on an identical protein. Ubiquitination occurs on the lysine residue by formation of an isopeptide crosslink.
    GO:0016567    protein ubiquitination    The process in which one or more ubiquitin groups are added to a protein.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0042752    regulation of circadian rhythm    Any process that modulates the frequency, rate or extent of a circadian rhythm. A circadian rhythm is a biological process in an organism that recurs with a regularity of approximately 24 hours.
    GO:2000058    regulation of protein ubiquitination involved in ubiquitin-dependent protein catabolic process    Any process that modulates the frequency, rate or extent of protein ubiquitination involved in ubiquitin-dependent protein catabolic process.
    GO:0048511    rhythmic process    Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
    GO:0035037    sperm entry    An endocytosis process that results in penetration of the egg shell through the micropyle (a specialized anterior opening in the vitelline envelope) and entry of the entire sperm, including the surrounding plasma membrane and the sperm tail, into the egg cytoplasm. This step in fertilization is seen in Drosophila, where a plasma membrane fusion event between the sperm and the egg does not occur.
    GO:0006511    ubiquitin-dependent protein catabolic process    The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
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:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0000502    proteasome complex    A large multisubunit complex which catalyzes protein degradation, found in eukaryotes, archaea and some bacteria. In eukaryotes, this complex consists of the barrel shaped proteasome core complex and one or two associated proteins or complexes that act in regulating entry into or exit from the core.

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        UBE3A_HUMAN | Q050861c4z 1eqx 2kr1 4giz 4xr8

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1ubq 1UBQ IS THE UBIQUITIN STRUCTURE. UBIQUITIN IS THIS PROTEIN' S SUBSTRATE.