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GeneBe

1-114684369-CAAAA-CAAAAA

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP6BS1

The NM_000036.3(AMPD1):​c.382-6_382-5insT variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0398 in 961,800 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.046 ( 0 hom. )

Consequence

AMPD1
NM_000036.3 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 1.05
Variant links:
Genes affected
AMPD1 (HGNC:468): (adenosine monophosphate deaminase 1) Adenosine monophosphate deaminase 1 catalyzes the deamination of AMP to IMP in skeletal muscle and plays an important role in the purine nucleotide cycle. Two other genes have been identified, AMPD2 and AMPD3, for the liver- and erythocyte-specific isoforms, respectively. Deficiency of the muscle-specific enzyme is apparently a common cause of exercise-induced myopathy and probably the most common cause of metabolic myopathy in the human. Alternatively spliced transcript variants encoding different isoforms have been identified in this gene.[provided by RefSeq, Feb 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 1-114684369-C-CA is Benign according to our data. Variant chr1-114684369-C-CA is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 291934.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1, Likely_benign=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.0461 (38149/827386) while in subpopulation AFR AF= 0.0521 (986/18918). AF 95% confidence interval is 0.0494. There are 0 homozygotes in gnomad4_exome. There are 18359 alleles in male gnomad4_exome subpopulation. Median coverage is 0. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMPD1NM_000036.3 linkuse as main transcriptc.382-6_382-5insT splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000520113.7
AMPD1NM_001172626.2 linkuse as main transcriptc.370-6_370-5insT splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMPD1ENST00000520113.7 linkuse as main transcriptc.382-6_382-5insT splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000036.3 P4P23109-1

Frequencies

GnomAD3 genomes
AF:
0.00114
AC:
153
AN:
134380
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00282
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000528
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000422
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.00219
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000275
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0461
AC:
38149
AN:
827386
Hom.:
0
Cov.:
0
AF XY:
0.0444
AC XY:
18359
AN XY:
413154
show subpopulations
Gnomad4 AFR exome
AF:
0.0521
Gnomad4 AMR exome
AF:
0.0466
Gnomad4 ASJ exome
AF:
0.0442
Gnomad4 EAS exome
AF:
0.0461
Gnomad4 SAS exome
AF:
0.0361
Gnomad4 FIN exome
AF:
0.0467
Gnomad4 NFE exome
AF:
0.0467
Gnomad4 OTH exome
AF:
0.0486
GnomAD4 genome
AF:
0.00113
AC:
152
AN:
134414
Hom.:
0
Cov.:
32
AF XY:
0.00128
AC XY:
83
AN XY:
64854
show subpopulations
Gnomad4 AFR
AF:
0.00281
Gnomad4 AMR
AF:
0.000527
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000424
Gnomad4 SAS
AF:
0.00143
Gnomad4 FIN
AF:
0.00219
Gnomad4 NFE
AF:
0.000275
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Muscle AMP deaminase deficiency Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2023- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsJun 12, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

LitVar

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

Other links and lift over

dbSNP: rs727503806; hg19: chr1-115226990; API