rs139976873

Variant names:

• chr10-72097408-T-C
• rs139976873
• NM_001198800.3:c.1000A>G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_001198800.3(ASCC1):​c.1000A>G​(p.Ile334Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000092 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: ASCC1 NM_001198800.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.32

Genes affected

ASCC1 (HGNC:24268): (activating signal cointegrator 1 complex subunit 1) This gene encodes a subunit of the activating signal cointegrator 1 (ASC-1) complex. The ASC-1 complex is a transcriptional coactivator that plays an important role in gene transactivation by multiple transcription factors including activating protein 1 (AP-1), nuclear factor kappa-B (NF-kB) and serum response factor (SRF). The encoded protein contains an N-terminal KH-type RNA-binding motif which is required for AP-1 transactivation by the ASC-1 complex. Mutations in this gene are associated with Barrett esophagus and esophageal adenocarcinoma. Alternatively spliced transcripts encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.03294635).
• BS2: High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASCC1	NM_001198800.3	c.1000A>G	p.Ile334Val	missense_variant	Exon 10 of 10	ENST00000672957.1	NP_001185729.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ASCC1	ENST00000672957.1	c.1000A>G	p.Ile334Val	missense_variant	Exon 10 of 10		NM_001198800.3	ENSP00000500935.1

Frequencies

GnomAD3 genomes AF: 0.0000920 AC: 14 AN: 152250 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000289

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.000478

GnomAD3 exomes AF: 0.0000398 AC: 10 AN: 251464 Hom.: 0 AF XY: 0.0000368 AC XY: 5 AN XY: 135908

Gnomad AFR exome AF: 0.000246

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000287 AC: 42 AN: 1461682 Hom.: 0 Cov.: 30 AF XY: 0.0000316 AC XY: 23 AN XY: 727154

Gnomad4 AFR exome AF: 0.000269

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000198

Gnomad4 OTH exome AF: 0.000116

GnomAD4 genome AF: 0.0000919 AC: 14 AN: 152368 Hom.: 0 Cov.: 33 AF XY: 0.0000537 AC XY: 4 AN XY: 74514

Gnomad4 AFR AF: 0.000289

Gnomad4 AMR AF: 0.00

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: 0.000473

Alfa AF: 0.0000761 Hom.: 0

Bravo AF: 0.000117

ESP6500AA AF: 0.000454 AC: 2

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000576 AC: 7

Asia WGS AF: 0.000577 AC: 2 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Nov 16, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with ASCC1-related conditions. This variant is present in population databases (rs139976873, gnomAD 0.02%). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 334 of the ASCC1 protein (p.Ile334Val). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	8.9
DANN	Benign	0.82
Eigen	Benign	-0.82
Eigen_PC	Benign	-0.65
FATHMM_MKL	Benign	0.36	N
LIST_S2	Benign	0.62	T;.;.
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.033	T;T;T
MetaSVM	Benign	-1.0	T
PROVEAN	Benign	-0.43	N;N;N
REVEL	Benign	0.060
Sift	Benign	0.33	T;T;T
Sift4G	Benign	0.76	T;T;T
Vest4		0.084
MVP		0.39
ClinPred		0.012	T
GERP RS		0.25
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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

Other links and lift over

dbSNP: rs139976873; hg19: chr10-73857166;