14-23357578-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005864.4(EFS):c.1334G>A(p.Ser445Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000374 in 1,605,130 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: EFS NM_005864.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.639

Genes affected

EFS (HGNC:16898): (embryonal Fyn-associated substrate) The protein encoded by this gene is a member of the CAS (CRK-associated substrate) family of adaptor proteins which typically serve as scaffolds for the assembly of larger signaling complexes. These complexes form at the cell surface where integrin binding leads to the subsequent phosphorylation of a CAS protein. Additional binding of SRC family kinases leads to CAS hyperphosphorylation and the creation of binding sites for CRK and other proteins that cause actin cytoskeleton reorganization. This gene plays a role in integrin-mediated cell attachment, spreading, and migration and also plays a role in both normal and malignant cellular transformation. This broadly expressed gene has been shown to play a role in neurite outgrowth and its expression in the thymus and lymphocytes is important for T cell maturation and the development of immunological self-tolerance. Alternative splicing of this gene results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2020]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09763783).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EFS	NM_005864.4	c.1334G>A	p.Ser445Asn	missense_variant	6/6	ENST00000216733.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EFS	ENST00000216733.8	c.1334G>A	p.Ser445Asn	missense_variant	6/6	1	NM_005864.4	P1
EFS	ENST00000351354.3	c.1055G>A	p.Ser352Asn	missense_variant	5/5	1
EFS	ENST00000429593.6	c.827G>A	p.Ser276Asn	missense_variant	6/6	2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152240 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.00000404 AC: 1 AN: 247784 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 133836

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000545

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: 0.00000344 AC: 5 AN: 1452772 Hom.: 0 Cov.: 30 AF XY: 0.00000139 AC XY: 1 AN XY: 721016

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000507

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.04e-7

Gnomad4 OTH exome AF: 0.0000334

GnomAD4 genome AF: 0.00000656 AC: 1 AN: 152358 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74508

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

Asia WGS AF: 0.000289 AC: 1 AN: 3478

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

Feb 22, 2023

The c.1334G>A (p.S445N) alteration is located in exon 6 (coding exon 6) of the EFS gene. This alteration results from a G to A substitution at nucleotide position 1334, causing the serine (S) at amino acid position 445 to be replaced by an asparagine (N). 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	-0.63
Cadd	Benign	14
Dann	Uncertain	0.99
DEOGEN2	Benign	0.068	T;.;.
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.19
FATHMM_MKL	Benign	0.73	D
LIST_S2	Benign	0.69	T;T;T
M_CAP	Benign	0.0049	T
MetaRNN	Benign	0.098	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L;.;.
MutationTaster	Benign	0.97	D;D;D
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-1.8	N;N;N
REVEL	Benign	0.051
Sift	Uncertain	0.0060	D;D;D
Sift4G	Uncertain	0.032	D;D;D
Polyphen		0.0040	B;.;B
Vest4		0.079
MutPred		0.24		Gain of relative solvent accessibility (P = 0.2363);.;.;
MVP		0.53
MPC		0.11
ClinPred		0.33	T
GERP RS		2.0
Varity_R		0.34
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

LitVar

Other links and lift over

dbSNP: rs529242556; hg19: chr14-23826787;