rs34959427

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_018109.4(MTPAP):​c.781-54A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0389 in 1,379,008 control chromosomes in the GnomAD database, including 1,239 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.031 ( 103 hom., cov: 33)
Exomes 𝑓: 0.040 ( 1136 hom. )

Consequence

MTPAP
NM_018109.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.63
Variant links:
Genes affected
MTPAP (HGNC:25532): (mitochondrial poly(A) polymerase) The protein encoded by this gene is a member of the DNA polymerase type-B-like family. This enzyme synthesizes the 3' poly(A) tail of mitochondrial transcripts and plays a role in replication-dependent histone mRNA degradation.[provided by RefSeq, Jan 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 10-30326689-T-A is Benign according to our data. Variant chr10-30326689-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 1212421.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0313 (4765/152298) while in subpopulation NFE AF= 0.045 (3059/68032). AF 95% confidence interval is 0.0436. There are 103 homozygotes in gnomad4. There are 2239 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 103 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MTPAPNM_018109.4 linkuse as main transcriptc.781-54A>T intron_variant ENST00000263063.9 NP_060579.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MTPAPENST00000263063.9 linkuse as main transcriptc.781-54A>T intron_variant 1 NM_018109.4 ENSP00000263063 P1Q9NVV4-1
MTPAPENST00000417581.1 linkuse as main transcriptc.586-54A>T intron_variant 5 ENSP00000404392
MTPAPENST00000488290.5 linkuse as main transcriptn.2536-54A>T intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0313
AC:
4769
AN:
152180
Hom.:
103
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00869
Gnomad AMI
AF:
0.0154
Gnomad AMR
AF:
0.0344
Gnomad ASJ
AF:
0.0528
Gnomad EAS
AF:
0.000384
Gnomad SAS
AF:
0.0193
Gnomad FIN
AF:
0.0392
Gnomad MID
AF:
0.0538
Gnomad NFE
AF:
0.0450
Gnomad OTH
AF:
0.0468
GnomAD4 exome
AF:
0.0398
AC:
48855
AN:
1226710
Hom.:
1136
AF XY:
0.0392
AC XY:
24381
AN XY:
621784
show subpopulations
Gnomad4 AFR exome
AF:
0.00804
Gnomad4 AMR exome
AF:
0.0268
Gnomad4 ASJ exome
AF:
0.0501
Gnomad4 EAS exome
AF:
0.0000519
Gnomad4 SAS exome
AF:
0.0194
Gnomad4 FIN exome
AF:
0.0409
Gnomad4 NFE exome
AF:
0.0448
Gnomad4 OTH exome
AF:
0.0381
GnomAD4 genome
AF:
0.0313
AC:
4765
AN:
152298
Hom.:
103
Cov.:
33
AF XY:
0.0301
AC XY:
2239
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.00866
Gnomad4 AMR
AF:
0.0343
Gnomad4 ASJ
AF:
0.0528
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.0191
Gnomad4 FIN
AF:
0.0392
Gnomad4 NFE
AF:
0.0450
Gnomad4 OTH
AF:
0.0464
Alfa
AF:
0.0413
Hom.:
18
Bravo
AF:
0.0309
Asia WGS
AF:
0.00664
AC:
23
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
6.1
DANN
Benign
0.71

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: rs34959427; hg19: chr10-30615618; API