chr4-54270682-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_006206.6(PDGFRA):​c.1171C>A​(p.His391Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,160 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. H391Y) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PDGFRA
NM_006206.6 missense

Scores

1
18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.821
Variant links:
Genes affected
PDGFRA (HGNC:8803): (platelet derived growth factor receptor alpha) This gene encodes a cell surface tyrosine kinase receptor for members of the platelet-derived growth factor family. These growth factors are mitogens for cells of mesenchymal origin. The identity of the growth factor bound to a receptor monomer determines whether the functional receptor is a homodimer or a heterodimer, composed of both platelet-derived growth factor receptor alpha and beta polypeptides. Studies suggest that this gene plays a role in organ development, wound healing, and tumor progression. Mutations in this gene have been associated with idiopathic hypereosinophilic syndrome, somatic and familial gastrointestinal stromal tumors, and a variety of other cancers. [provided by RefSeq, Mar 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PDGFRA. . Gene score misZ 1.9401 (greater than the threshold 3.09). Trascript score misZ 3.4078 (greater than threshold 3.09). GenCC has associacion of gene with congenital heart disease, polyps, multiple and recurrent inflammatory fibroid, gastrointestinal, gastrointestinal stromal tumor, isolated cleft palate.
BP4
Computational evidence support a benign effect (MetaRNN=0.23224628).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDGFRANM_006206.6 linkuse as main transcriptc.1171C>A p.His391Asn missense_variant 8/23 ENST00000257290.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDGFRAENST00000257290.10 linkuse as main transcriptc.1171C>A p.His391Asn missense_variant 8/231 NM_006206.6 P1P16234-1
PDGFRAENST00000509092.5 linkuse as main transcriptn.989C>A non_coding_transcript_exon_variant 7/151
PDGFRAENST00000509490.5 linkuse as main transcriptc.1171C>A p.His391Asn missense_variant, NMD_transcript_variant 8/181 P16234-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460160
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
726532
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
13
DANN
Benign
0.69
DEOGEN2
Benign
0.077
T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.11
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.72
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.23
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.46
N
MutationTaster
Benign
1.0
D;N
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.24
N
REVEL
Benign
0.071
Sift
Benign
0.41
T
Sift4G
Benign
0.32
T
Polyphen
0.0
B
Vest4
0.18
MutPred
0.27
Loss of stability (P = 0.1575);
MVP
0.58
MPC
0.36
ClinPred
0.099
T
GERP RS
5.0
Varity_R
0.11
gMVP
0.52

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: chr4-55136849; API