NM_005864.4:c.1682C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005864.4(EFS):​c.1682C>T​(p.Pro561Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000013 in 1,539,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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: 7.2e-7 ( 0 hom. )

Consequence

EFS
NM_005864.4 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.06

Publications

0 publications found
Variant links:
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]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23264068).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EFSNM_005864.4 linkc.1682C>T p.Pro561Leu missense_variant Exon 6 of 6 ENST00000216733.8 NP_005855.1 O43281-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EFSENST00000216733.8 linkc.1682C>T p.Pro561Leu missense_variant Exon 6 of 6 1 NM_005864.4 ENSP00000216733.3 O43281-1
EFSENST00000351354.3 linkc.1403C>T p.Pro468Leu missense_variant Exon 5 of 5 1 ENSP00000340607.3 O43281-2
EFSENST00000429593.6 linkc.1175C>T p.Pro392Leu missense_variant Exon 6 of 6 2 ENSP00000416684.2 O43281-3
ENSG00000259018ENST00000554010.1 linkn.*227G>A downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
7.21e-7
AC:
1
AN:
1387398
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
679654
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000312
AC:
1
AN:
32014
American (AMR)
AF:
0.00
AC:
0
AN:
39192
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22012
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38472
South Asian (SAS)
AF:
0.00
AC:
0
AN:
74964
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50974
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5370
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1067352
Other (OTH)
AF:
0.00
AC:
0
AN:
57048
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.275
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 10, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1682C>T (p.P561L) alteration is located in exon 6 (coding exon 6) of the EFS gene. This alteration results from a C to T substitution at nucleotide position 1682, causing the proline (P) at amino acid position 561 to be replaced by a leucine (L). 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
0.18
BayesDel_addAF
Uncertain
0.017
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
T;.;.
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Uncertain
2.4
M;.;.
PhyloP100
3.1
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-2.3
N;N;N
REVEL
Benign
0.27
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.18
MutPred
0.49
Gain of stability (P = 0.0106);.;.;
MVP
0.71
MPC
0.48
ClinPred
0.97
D
GERP RS
3.7
Varity_R
0.15
gMVP
0.28
Mutation Taster
=74/26
polymorphism

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

Other links and lift over

dbSNP: rs1179395491; hg19: chr14-23826439; API