13-37012263-G-T
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001014286.3(SUPT20H):c.2027C>A(p.Ala676Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,613,242 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
SUPT20H
NM_001014286.3 missense
NM_001014286.3 missense
Scores
1
12
6
Clinical Significance
Conservation
PhyloP100: 3.82
Genes affected
SUPT20H (HGNC:20596): (SPT20 homolog, SAGA complex component) Predicted to enable transcription coregulator activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to act upstream of or within positive regulation of gluconeogenesis and positive regulation of transcription by RNA polymerase II. Part of SAGA-type complex. [provided by Alliance of Genome Resources, Apr 2022]
EXOSC8 (HGNC:17035): (exosome component 8) This gene encodes a 3'-5' exoribonuclease that specifically interacts with mRNAs containing AU-rich elements. The encoded protein is part of the exosome complex that is important for the degradation of numerous RNA species. A pseudogene of this gene is found on chromosome 6. [provided by RefSeq, Mar 2009]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SUPT20H | NM_001014286.3 | c.2027C>A | p.Ala676Asp | missense_variant | 24/26 | ENST00000350612.11 | NP_001014308.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SUPT20H | ENST00000350612.11 | c.2027C>A | p.Ala676Asp | missense_variant | 24/26 | 1 | NM_001014286.3 | ENSP00000218894.10 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152108Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461134Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3AN XY: 726884
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152108Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74304
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 26, 2024 | The c.2027C>A (p.A676D) alteration is located in exon 24 (coding exon 23) of the SUPT20H gene. This alteration results from a C to A substitution at nucleotide position 2027, causing the alanine (A) at amino acid position 676 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
.;.;.;D;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;D;.;D;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
.;.;.;M;.;.
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;D;D;D;.;D
REVEL
Benign
Sift
Uncertain
D;D;D;D;.;D
Sift4G
Uncertain
D;D;D;D;D;D
Polyphen
P;.;P;B;.;P
Vest4
MutPred
0.32
.;.;.;Gain of relative solvent accessibility (P = 0.0215);Gain of relative solvent accessibility (P = 0.0215);.;
MVP
MPC
0.42
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at