ID:SMG8_HUMAN DESCRIPTION: RecName: Full=Protein SMG8; AltName: Full=Amplified in breast cancer gene 2 protein; AltName: Full=Protein smg-8 homolog; FUNCTION: Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited by release factors to stalled ribosomes together with SMG1 and SMG9 (forming the SMG1C protein kinase complex) and, in the SMG1C complex, is required to mediate the recruitment of SMG1 to the ribosome:SURF complex and to suppress SMG1 kinase activity until the ribosome:SURF complex locates the exon junction complex (EJC). Acts as a regulator of kinase activity. SUBUNIT: Component of the SMG1C complex composed of SMG1, SMG8 and SMG9; the recruitment of SMG8 to SMG1 N-terminus induces a large conformational change in the SMG1 C-terminal head domain containing the catalytic domain. Forms heterodimers with SMG9; this assembly form may represent a SMG1C intermediate form. INTERACTION: Q9H0W8:SMG9; NbExp=4; IntAct=EBI-3903643, EBI-2872322; PTM: Phosphorylated by SMG1. SIMILARITY: Belongs to the SMG8 family. SEQUENCE CAUTION: Sequence=AAH20957.1; Type=Erroneous initiation; Note=Translation N-terminally extended; Sequence=BAA91699.1; Type=Erroneous initiation; Note=Translation N-terminally extended;
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q8ND04
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
US Server
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
