chr7-38391990-C-G

Variant summary

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

The NM_001635.4(AMPH):ā€‹c.1636G>Cā€‹(p.Glu546Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000412 in 1,455,430 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. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000041 ( 0 hom. )

Consequence

AMPH
NM_001635.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.24
Variant links:
Genes affected
AMPH (HGNC:471): (amphiphysin) This gene encodes a protein associated with the cytoplasmic surface of synaptic vesicles. A subset of patients with stiff-man syndrome who were also affected by breast cancer are positive for autoantibodies against this protein. Alternate splicing of this gene results in two transcript variants encoding different isoforms. Additional splice variants have been described, but their full length sequences have not been determined. A pseudogene of this gene is found on chromosome 11.[provided by RefSeq, Nov 2010]

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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=0.15213522).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMPHNM_001635.4 linkuse as main transcriptc.1636G>C p.Glu546Gln missense_variant 19/21 ENST00000356264.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMPHENST00000356264.7 linkuse as main transcriptc.1636G>C p.Glu546Gln missense_variant 19/211 NM_001635.4 P3P49418-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000412
AC:
6
AN:
1455430
Hom.:
0
Cov.:
34
AF XY:
0.00000276
AC XY:
2
AN XY:
724286
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:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0

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 GeneticsFeb 08, 2023The c.1636G>C (p.E546Q) alteration is located in exon 19 (coding exon 19) of the AMPH gene. This alteration results from a G to C substitution at nucleotide position 1636, causing the glutamic acid (E) at amino acid position 546 to be replaced by a glutamine (Q). 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
0.27
BayesDel_addAF
Benign
-0.093
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.26
.;T
Eigen
Benign
-0.020
Eigen_PC
Benign
0.044
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.81
T;T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.15
T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.7
.;L
MutationTaster
Benign
0.96
D;D;D
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.093
Sift
Benign
0.076
T;T
Sift4G
Benign
0.099
T;T
Polyphen
0.14
B;B
Vest4
0.14
MutPred
0.10
.;Loss of phosphorylation at S549 (P = 0.0956);
MVP
0.76
MPC
0.22
ClinPred
0.90
D
GERP RS
3.9
Varity_R
0.27
gMVP
0.35

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1257054366; hg19: chr7-38431591; API