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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:SMG8

Protein Summary

check button Gene summary
Gene name: SMG8
ASpdb.0 ID: 55181
Gene
Gene symbol

SMG8

Gene ID

55181

Gene nameSMG8 nonsense mediated mRNA decay factor
SynonymsALKUS|C17orf71
Cytomap

17q22

Type of geneprotein-coding
Descriptionnonsense-mediated mRNA decay factor SMG8amplified in breast cancer gene 2 proteinprotein SMG8protein smg-8 homologsmg-8 homolog, nonsense mediated mRNA decay factor
Modification date20240305
UniProtAcc

Q8ND04


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID


AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q8ND04-1Q8ND04-1_6l54_B.pdb6L54EM3.43B1559

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q8ND04SMG8Q8ND04-1Q8ND04-3991588588588SubstitutionES588588
Q8ND04SMG8Q8ND04-1Q8ND04-3991588589991Deletionnonenone588588

check buttonMultiple sequence alignment of our canonical and alternatively spliced SMG8

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of SMG8
UniProt-idENSGENSTENSP
Q8ND04-1ENSG00000167447.13ENST00000300917.10ENSP00000300917.4
Q8ND04-1ENSG00000167447.13ENST00000543872.6ENSP00000438748.2
Q8ND04-3ENSG00000167447.13ENST00000578922.1ENSP00000462119.1

UniProt-idNM IDNP ID
Q8ND04-1NM_018149.6NP_060619.4

check buttonAmino acid sequences of our canonical and alternatively spliced SMG8
accession_idProtein sequence
Q8ND04-1MAGPVSLRDLLMGASAWMGSESPGGSPTEGGGSAAGGPEPPWREDEICVVGIFGKTALRLNSEKFSLVNTVCDRQVFPLFRHQDPGDPGP
GIRTEAGAVGEAGGAEDPGAAAGGSVRGSGAVAEGNRTEAGSQDYSLLQAYYSQESKVLYLLLTSICDNSQLLRACRALQSGEAGGGLSL
PHAEAHEFWKHQEKLQCLSLLYLFSVCHILLLVHPTCSFDITYDRVFRALDGLRQKVLPLLKTAIKDCPVGKDWKLNCRPCPPRLLFLFQ
LNGALKVEPPRNQDPAHPDKPKKHSPKRRLQHALEDQIYRIFRKSRVLTNQSINCLFTVPANQAFVYIVPGSQEEDPVGMLLDQLRSHCT
VKDPESLLVPAPLSGPRRYQVMRQHSRQQLSFHIDSSSSSSSGQLVDFTLREFLWQHVELVLSKKGFDDSVGRNPQPSHFELPTYQKWIS
AASKLYEVAIDGKEEDLGSPTGELTSKILSSIKVLEGFLDIDTKFSENRCQKALPMAHSAYQSNLPHNYTMTVHKNQLAQALRVYSQHAR
GPAFHKYAMQLHEDCYKFWSNGHQLCEERSLTDQHCVHKFHSLPKSGEKPEADRNPPVLYHNSRARSTGACNCGRKQAPRDDPFDIKAAN
YDFYQLLEEKCCGKLDHINFPVFEPSTPDPAPAKNESSPAPPDSDADKLKEKEPQTQGESTSLSLALSLGQSTDSLGTYPADPQAGGDNP
EVHGQVEVKTEKRPNFVDRQASTVEYLPGMLHSNCPKGLLPKFSSWSLVKLGPAKSYNFHTGLDQQGFIPGTNYLMPWDIVIRTRAEDEG
DLDTNSWPAPNKAIPGKRSAVVMGRGRRRDDIARAFVGFEYEDSRGRRFMCSGPDKVMKVMGSGPKESALKALNSDMPLYILSSSQGRGL
KPHYAQLMRLFVVVPDAPLQIILMPQVQPGPPPCPVFYPEKQEITLPPDGLWVLRFPYAYVTERGPCFPPKENVQLMSYKVLRGVLKAVT
Q8ND04-3MAGPVSLRDLLMGASAWMGSESPGGSPTEGGGSAAGGPEPPWREDEICVVGIFGKTALRLNSEKFSLVNTVCDRQVFPLFRHQDPGDPGP
GIRTEAGAVGEAGGAEDPGAAAGGSVRGSGAVAEGNRTEAGSQDYSLLQAYYSQESKVLYLLLTSICDNSQLLRACRALQSGEAGGGLSL
PHAEAHEFWKHQEKLQCLSLLYLFSVCHILLLVHPTCSFDITYDRVFRALDGLRQKVLPLLKTAIKDCPVGKDWKLNCRPCPPRLLFLFQ
LNGALKVEPPRNQDPAHPDKPKKHSPKRRLQHALEDQIYRIFRKSRVLTNQSINCLFTVPANQAFVYIVPGSQEEDPVGMLLDQLRSHCT
VKDPESLLVPAPLSGPRRYQVMRQHSRQQLSFHIDSSSSSSSGQLVDFTLREFLWQHVELVLSKKGFDDSVGRNPQPSHFELPTYQKWIS
AASKLYEVAIDGKEEDLGSPTGELTSKILSSIKVLEGFLDIDTKFSENRCQKALPMAHSAYQSNLPHNYTMTVHKNQLAQALRVYSQHAR

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
SMG8 (go to UniProt):Q8ND04

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
Q8ND04Region653722Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=589;End=991
Q8ND04Compositional bias671685Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=589;End=991
Q8ND04Compositional bias686709Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=589;End=991


Gene Isoform Structures and Expression Levels for SMG8

check buttonGene structures of our canonical and alternative spliced genes of SMG8
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of SMG8

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of Q8ND04-1
3D view using mol* of Q8ND04-3


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of Q8ND04-1
all structure
pLDDT distribution across the protein length of Q8ND04-3
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of Q8ND04-1
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
Q8ND04-11.0921301.102461.3350.520.8341.1380.9011.0380.8681.231571,572,573,574,605,606,607,608,609,610,620,621,62
2,634,852,853,854,855,890,901,902,903,904,906,908,
909,958,959,960,966,967,968,969,970,971,972
Q8ND04-31.0381510.999533.7080.5530.7550.9690.3641.2090.3010.65856,57,58,59,60,61,62,63,64,65,66,77,78,79,80,81,82
,83,84,87,89,137,152,154,158,159,160,161,163,164,1
67,390,391,392

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of Q8ND04-1_Q8ND04-1_6l54_B.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of Q8ND04-1_6l54_B_Q8ND04-3.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of Q8ND04-1_Q8ND04-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q8ND04-1_vs_Q8ND04-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q8ND04-1_vs_Q8ND04-3.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to SMG8


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions

Related Diseases to SMG8


check button Previous studies relating to the alternative splicing of SMG8 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in SMG8


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance