Identification
HMDB Protein ID CDBP04441
Secondary Accession Numbers Not Available
Name E3 ubiquitin-protein ligase SIAH1
Description Not Available
Synonyms
  1. Seven in absentia homolog 1
  2. Siah-1
  3. Siah-1a
Gene Name SIAH1
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 (MYB, POU2AF1, PML and RBBP8), a cell surface receptor (DCC), cytoplasmic signal transduction molecules (KLF10/TIEG1 and NUMB), an antiapoptotic protein (BAG1), a microtubule motor protein (KIF22), a protein involved in synaptic vesicle function in neurons (SYP), a structural protein (CTNNB1) and SNCAIP. It is thereby involved in many cellular processes such as apoptosis, tumor suppression, cell cycle, axon guidance, transcription regulation, spermatogenesis and TNF-alpha signaling. Has some overlapping function with SIAH2. Induces apoptosis in cooperation with PEG3
GO Classification
Component
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
nucleus
Function
transition metal ion binding
zinc ion binding
ligase activity
protein binding
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
Process
cellular macromolecule catabolic process
modification-dependent macromolecule catabolic process
modification-dependent protein catabolic process
ubiquitin-dependent protein catabolic 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 Location
  1. Nucleus
  2. Cytoplasm
Pathways
Gene Properties
Chromosome Location Chromosome:1
Locus 16q12
SNPs SIAH1
Gene Sequence
>849 bp
ATGAGCCGTCAGACTGCTACAGCATTACCTACCGGTACCTCGAAGTGTCCACCATCCCAG
AGGGTGCCTGCCCTGACTGGCACAACTGCATCCAACAATGACTTGGCGAGTCTTTTTGAG
TGTCCAGTCTGCTTTGACTATGTGTTACCGCCCATTCTTCAATGTCAGAGTGGCCATCTT
GTTTGTAGCAACTGTCGCCCAAAGCTCACATGTTGTCCAACTTGCCGGGGCCCTTTGGGA
TCCATTCGCAACTTGGCTATGGAGAAAGTGGCTAATTCAGTACTTTTCCCCTGTAAATAT
GCGTCTTCTGGATGTGAAATAACTCTGCCACACACAGAAAAAGCAGACCATGAAGAGCTC
TGTGAGTTTAGGCCTTATTCCTGTCCGTGCCCTGGTGCTTCCTGTAAATGGCAAGGCTCT
CTGGATGCTGTAATGCCCCATCTGATGCATCAGCATAAGTCCATTACAACCCTACAGGGA
GAGGATATAGTTTTTCTTGCTACAGACATTAATCTTCCTGGTGCTGTTGACTGGGTGATG
ATGCAGTCCTGTTTTGGCTTTCACTTCATGTTAGTCTTAGAGAAACAGGAAAAATACGAT
GGTCACCAGCAGTTCTTCGCAATCGTACAGCTGATAGGAACACGCAAGCAAGCTGAAAAT
TTTGCTTACCGACTTGAGCTAAATGGTCATAGGCGACGATTGACTTGGGAAGCGACTCCT
CGATCTATTCATGAAGGAATTGCAACAGCCATTATGAATAGCGACTGTCTAGTCTTTGAC
ACCAGCATTGCACAGCTTTTTGCAGAAAATGGCAATTTAGGCATCAATGTAACTATTTCC
ATGTGTTGA
Protein Properties
Number of Residues 282
Molecular Weight 31122.6
Theoretical pI 6.8
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["None"]
Protein Sequence
>E3 ubiquitin-protein ligase SIAH1
MSRQTATALPTGTSKCPPSQRVPALTGTTASNNDLASLFECPVCFDYVLPPILQCQSGHL
VCSNCRPKLTCCPTCRGPLGSIRNLAMEKVANSVLFPCKYASSGCEITLPHTEKADHEEL
CEFRPYSCPCPGASCKWQGSLDAVMPHLMHQHKSITTLQGEDIVFLATDINLPGAVDWVM
MQSCFGFHFMLVLEKQEKYDGHQQFFAIVQLIGTRKQAENFAYRLELNGHRRRLTWEATP
RSIHEGIATAIMNSDCLVFDTSIAQLFAENGNLGINVTISMC
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q8IUQ4
UniProtKB/Swiss-Prot Entry Name SIAH1_HUMAN
PDB IDs
GenBank Gene ID U63295
GeneCard ID SIAH1
GenAtlas ID SIAH1
HGNC ID HGNC:10857
References
General References Not Available