X-139596716-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001171876.2(MCF2):ā€‹c.2338A>Gā€‹(p.Ile780Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,095 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.0000018 ( 0 hom. 1 hem. )

Consequence

MCF2
NM_001171876.2 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.86
Variant links:
Genes affected
MCF2 (HGNC:6940): (MCF.2 cell line derived transforming sequence) The oncogenic protein encoded by this gene is a guanine nucleotide exchange factor (GEF) that exerts control over some members of the Rho family of small GTPases. Several transcript variants encoding different isoforms have been found for this gene. These isoforms exhibit different expression patterns and varying levels of GEF activity.[provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.07451111).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCF2NM_001171876.2 linkuse as main transcriptc.2338A>G p.Ile780Val missense_variant 23/29 ENST00000519895.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCF2ENST00000519895.6 linkuse as main transcriptc.2338A>G p.Ile780Val missense_variant 23/292 NM_001171876.2 P4P10911-5

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
AF:
0.00000182
AC:
2
AN:
1097095
Hom.:
0
Cov.:
30
AF XY:
0.00000276
AC XY:
1
AN XY:
362721
show subpopulations
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:
0.00000238
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

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 GeneticsJan 02, 2024The c.2338A>G (p.I780V) alteration is located in exon 23 (coding exon 22) of the MCF2 gene. This alteration results from a A to G substitution at nucleotide position 2338, causing the isoleucine (I) at amino acid position 780 to be replaced by a valine (V). 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
0.076
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.88
CADD
Benign
15
DANN
Benign
0.95
DEOGEN2
Benign
0.061
.;T;.;.;T;.;.;.
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.81
T;T;T;T;T;T;T;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.075
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.8
.;L;.;.;.;.;L;.
MutationTaster
Benign
0.77
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
0.19
.;N;N;N;N;N;N;N
REVEL
Benign
0.011
Sift
Benign
0.33
.;T;T;T;T;T;T;T
Sift4G
Benign
0.42
.;T;T;T;T;T;T;T
Polyphen
0.0010, 0.0060
.;B;.;.;.;.;B;B
Vest4
0.059, 0.092, 0.056, 0.058, 0.038, 0.050
MVP
0.25
MPC
0.21
ClinPred
0.081
T
GERP RS
2.0
Varity_R
0.043
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: chrX-138678875; API