2-3354609-C-A

Position:

• chr2-3354609-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003310.5(EIPR1):​c.67G>T​(p.Ala23Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,740 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: EIPR1 NM_003310.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.21

Genes affected

EIPR1 (HGNC:12383): (EARP complex and GARP complex interacting protein 1) This gene has been reported in PMID 9403053 as one of several tumor-suppressing subtransferable fragments located in the imprinted gene domain of 11p15.5, an important tumor-suppressor gene region. Alterations in this region have been associated with the Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocortical carcinoma, and lung, ovarian, and breast cancer. Alignment of this gene to genomic sequence data suggests that this gene resides on chromosome 2 rather than chromosome 11. [provided by RefSeq, Dec 2008]

ACMG classification

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	UniProt
EIPR1	NM_003310.5	c.67G>T	p.Ala23Ser	missense_variant	2/9	ENST00000382125.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EIPR1	ENST00000382125.9	c.67G>T	p.Ala23Ser	missense_variant	2/9	1	NM_003310.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461740 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727166

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 27, 2022

The c.67G>T (p.A23S) alteration is located in exon 2 (coding exon 2) of the TSSC1 gene. This alteration results from a G to T substitution at nucleotide position 67, causing the alanine (A) at amino acid position 23 to be replaced by a serine (S). 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	0.13
BayesDel_addAF	Uncertain	0.053	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.079	.;T;.;.
Eigen	Benign	0.15
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.90	D;D;D;D
M_CAP	Benign	0.061	D
MetaRNN	Uncertain	0.59	D;D;D;D
MetaSVM	Uncertain	0.12	D
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-1.5	N;N;N;N
REVEL	Uncertain	0.37
Sift	Uncertain	0.017	D;D;D;D
Sift4G	Benign	0.095	T;T;T;.
Polyphen		0.038	.;B;.;.
Vest4		0.45
MutPred		0.42		Gain of disorder (P = 0.0432);Gain of disorder (P = 0.0432);Gain of disorder (P = 0.0432);Gain of disorder (P = 0.0432);
MVP		0.90
MPC		1.0
ClinPred		0.95	D
GERP RS		4.5
Varity_R		0.16
gMVP		0.42

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-3358380;