NM_212482.4:c.74G>T

Variant summary

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

The NM_212482.4(FN1):​c.74G>T​(p.Gly25Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G25E) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

FN1
NM_212482.4 missense

Scores

3
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0400

Publications

2 publications found
Variant links:
Genes affected
FN1 (HGNC:3778): (fibronectin 1) This gene encodes fibronectin, a glycoprotein present in a soluble dimeric form in plasma, and in a dimeric or multimeric form at the cell surface and in extracellular matrix. The encoded preproprotein is proteolytically processed to generate the mature protein. Fibronectin is involved in cell adhesion and migration processes including embryogenesis, wound healing, blood coagulation, host defense, and metastasis. The gene has three regions subject to alternative splicing, with the potential to produce 20 different transcript variants, at least one of which encodes an isoform that undergoes proteolytic processing. The full-length nature of some variants has not been determined. [provided by RefSeq, Jan 2016]
FN1-DT (HGNC:55775): (FN1 divergent transcript)

Genome browser will be placed here

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=0.083991736).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_212482.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FN1
NM_212482.4
MANE Select
c.74G>Tp.Gly25Val
missense
Exon 1 of 46NP_997647.2P02751-15
FN1
NM_001306129.2
c.74G>Tp.Gly25Val
missense
Exon 1 of 47NP_001293058.2P02751-7
FN1
NM_001365517.2
c.74G>Tp.Gly25Val
missense
Exon 1 of 45NP_001352446.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FN1
ENST00000354785.11
TSL:1 MANE Select
c.74G>Tp.Gly25Val
missense
Exon 1 of 46ENSP00000346839.4P02751-15
FN1
ENST00000323926.10
TSL:1
c.74G>Tp.Gly25Val
missense
Exon 1 of 47ENSP00000323534.6P02751-7
FN1
ENST00000336916.8
TSL:1
c.74G>Tp.Gly25Val
missense
Exon 1 of 46ENSP00000338200.4P02751-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1457038
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
724358
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000299
AC:
1
AN:
33430
American (AMR)
AF:
0.00
AC:
0
AN:
44374
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26042
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39616
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85272
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51958
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5716
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110380
Other (OTH)
AF:
0.00
AC:
0
AN:
60250
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
18
DANN
Benign
0.97
DEOGEN2
Benign
0.41
T
Eigen
Benign
-0.80
Eigen_PC
Benign
-0.86
FATHMM_MKL
Benign
0.046
N
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.057
D
MetaRNN
Benign
0.084
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.55
N
PhyloP100
0.040
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.7
N
REVEL
Benign
0.029
Sift
Uncertain
0.0060
D
Sift4G
Uncertain
0.022
D
Polyphen
0.062
B
Vest4
0.20
MVP
0.50
MPC
0.36
ClinPred
0.13
T
GERP RS
1.1
PromoterAI
-0.017
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.17
gMVP
0.27
Mutation Taster
=85/15
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: rs778918483; hg19: chr2-216300452; API