chr13-37028190-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001014286.3(SUPT20H):​c.1109G>A​(p.Cys370Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,612,810 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C370R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SUPT20H
NM_001014286.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06500372).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SUPT20HNM_001014286.3 linkuse as main transcriptc.1109G>A p.Cys370Tyr missense_variant 14/26 ENST00000350612.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SUPT20HENST00000350612.11 linkuse as main transcriptc.1109G>A p.Cys370Tyr missense_variant 14/261 NM_001014286.3 A1Q8NEM7-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000400
AC:
10
AN:
250062
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135176
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000293
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1460798
Hom.:
0
Cov.:
32
AF XY:
0.0000193
AC XY:
14
AN XY:
726718
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000382
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000990
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152012
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74224
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000529
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsDec 22, 2023The c.1109G>A (p.C370Y) alteration is located in exon 14 (coding exon 13) of the SUPT20H gene. This alteration results from a G to A substitution at nucleotide position 1109, causing the cysteine (C) at amino acid position 370 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
18
DANN
Benign
0.24
DEOGEN2
Benign
0.078
.;.;.;T;.;.
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.71
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.69
.;T;.;T;T;T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.065
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.76
.;N;.;N;.;.
MutationTaster
Benign
0.99
N;N;N;N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.65
N;N;N;N;.;N
REVEL
Benign
0.067
Sift
Benign
1.0
T;T;T;T;.;T
Sift4G
Benign
1.0
T;T;T;T;T;T
Polyphen
0.0
B;.;B;B;.;B
Vest4
0.31
MutPred
0.45
.;Gain of phosphorylation at C370 (P = 0.0502);.;Gain of phosphorylation at C370 (P = 0.0502);Gain of phosphorylation at C370 (P = 0.0502);.;
MVP
0.19
MPC
0.47
ClinPred
0.036
T
GERP RS
1.9
Varity_R
0.021
gMVP
0.32

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs753143395; hg19: chr13-37602327; API