Identification
HMDB Protein ID CDBP04442
Secondary Accession Numbers Not Available
Name E3 ubiquitin-protein ligase SIAH2
Description Not Available
Synonyms
  1. Seven in absentia homolog 2
  2. Siah-2
  3. hSiah2
Gene Name SIAH2
Protein Type Enzyme
Biological Properties
General Function Involved in ubiquitin-dependent protein catabolic process
Specific Function E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of target proteins. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin- conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Mediates E3 ubiquitin ligase activity either through direct binding to substrates or by functioning as the essential RING domain subunit of larger E3 complexes. Triggers the ubiquitin-mediated degradation of many substrates, including proteins involved in transcription regulation (POU2AF1, PML, NCOR1), a cell surface receptor (DCC), an antiapoptotic protein (BAG1), and a protein involved in synaptic vesicle function in neurons (SYP). It is thereby involved in apoptosis, tumor suppression, cell cycle, transcription and signaling processes. Has some overlapping function with SIAH1. Triggers the ubiquitin-mediated degradation of TRAF2, whereas SIAH1 can not. Promotes monoubiquitination of SNCA
GO Classification
Component
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
nucleus
Function
ligase activity, forming carbon-nitrogen bonds
acid-amino acid ligase activity
ubiquitin-protein ligase activity
ion binding
cation binding
metal ion binding
binding
catalytic activity
small conjugating protein ligase activity
transition metal ion binding
zinc ion binding
ligase activity
protein binding
Process
macromolecule modification
protein modification process
metabolic process
multicellular organismal process
macromolecule metabolic process
multicellular organismal development
protein modification by small protein conjugation or removal
protein modification by small protein conjugation
protein ubiquitination
catabolic process
macromolecule catabolic process
cellular macromolecule catabolic process
modification-dependent macromolecule catabolic process
modification-dependent protein catabolic process
ubiquitin-dependent protein catabolic process
Cellular Location
  1. Cytoplasm
  2. Nucleus (Probable)
Pathways
Gene Properties
Chromosome Location Chromosome:3
Locus 3q25
SNPs SIAH2
Gene Sequence
>975 bp
ATGAGCCGCCCGTCCTCCACCGGCCCCAGCGCTAATAAACCCTGCAGCAAGCAGCCGCCG
CCGCAGCCCCAGCACACTCCGTCCCCGGCTGCGCCCCCGGCCGCCGCCACCATCTCGGCT
GCGGGCCCCGGCTCGTCCGCGGTGCCCGCCGCGGCGGCGGTGATCTCGGGCCCCGGCGGC
GGCGGCGGGGCCGGCCCGGTGTCCCCGCAGCACCACGAGCTGACCTCGCTCTTCGAGTGT
CCGGTCTGCTTTGACTATGTCCTGCCTCCTATTCTGCAGTGCCAGGCCGGGCACCTGGTG
TGTAACCAATGCCGCCAGAAGTTGAGCTGCTGCCCGACGTGCAGGGGCGCCCTGACGCCC
AGCATCAGGAACCTGGCTATGGAGAAGGTGGCCTCGGCAGTCCTGTTTCCCTGTAAGTAT
GCCACCACGGGCTGTTCCCTGACCCTGCACCATACGGAGAAACCAGAACATGAAGACATA
TGTGAATACCGTCCCTACTCCTGCCCATGTCCTGGTGCTTCCTGCAAGTGGCAGGGGTCC
CTGGAAGCTGTGATGTCCCATCTCATGCACGCCCACAAGAGCATTACCACCCTTCAGGGA
GAAGACATCGTCTTTCTAGCTACAGACATTAACTTGCCAGGGGCTGTCGACTGGGTGATG
ATGCAGTCATGTTTTGGCCATCACTTCATGCTGGTGCTGGAGAAACAAGAGAAGTACGAA
GGCCACCAGCAGTTTTTTGCCATCGTCCTGCTCATTGGCACCCGCAAGCAAGCCGAGAAC
TTTGCCTACAGACTGGAGTTGAATGGGAACCGGCGGAGATTGACCTGGGAGGCCACGCCC
CGTTCGATTCATGACGGTGTGGCTGCGGCCATCATGAACAGCGACTGCCTTGTTTTCGAC
ACAGCCATAGCACATCTTTTTGCAGATAATGGGAACCTTGGAATCAATGTTACTATTTCT
ACATGTTGTCCATGA
Protein Properties
Number of Residues 324
Molecular Weight 34614.4
Theoretical pI 7.14
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["None"]
Protein Sequence
>E3 ubiquitin-protein ligase SIAH2
MSRPSSTGPSANKPCSKQPPPQPQHTPSPAAPPAAATISAAGPGSSAVPAAAAVISGPGG
GGGAGPVSPQHHELTSLFECPVCFDYVLPPILQCQAGHLVCNQCRQKLSCCPTCRGALTP
SIRNLAMEKVASAVLFPCKYATTGCSLTLHHTEKPEHEDICEYRPYSCPCPGASCKWQGS
LEAVMSHLMHAHKSITTLQGEDIVFLATDINLPGAVDWVMMQSCFGHHFMLVLEKQEKYE
GHQQFFAIVLLIGTRKQAENFAYRLELNGNRRRLTWEATPRSIHDGVAAAIMNSDCLVFD
TAIAHLFADNGNLGINVTISTCCP
GenBank ID Protein 15341820
UniProtKB/Swiss-Prot ID O43255
UniProtKB/Swiss-Prot Entry Name SIAH2_HUMAN
PDB IDs Not Available
GenBank Gene ID BC013082
GeneCard ID SIAH2
GenAtlas ID SIAH2
HGNC ID HGNC:10858
References
General References Not Available