chr2-219500030-G-A

Variant summary

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

The NM_013335.4(GMPPA):​c.40+15G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00177 in 1,613,362 control chromosomes in the GnomAD database, including 47 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0091 ( 21 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 26 hom. )

Consequence

GMPPA
NM_013335.4 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.992
Variant links:
Genes affected
GMPPA (HGNC:22923): (GDP-mannose pyrophosphorylase A) This gene is thought to encode a GDP-mannose pyrophosphorylase. This enzyme catalyzes the reaction which converts mannose-1-phosphate and GTP to GDP-mannose which is involved in the production of N-linked oligosaccharides. [provided by RefSeq, Jul 2008]
ASIC4-AS1 (HGNC:40960): (ASIC4 antisense RNA 1)

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=-0.67).
BP6
Variant 2-219500030-G-A is Benign according to our data. Variant chr2-219500030-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 382390.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00908 (1383/152238) while in subpopulation AFR AF= 0.0312 (1295/41510). AF 95% confidence interval is 0.0298. There are 21 homozygotes in gnomad4. There are 638 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 21 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GMPPANM_013335.4 linkuse as main transcriptc.40+15G>A intron_variant ENST00000313597.10
ASIC4-AS1XR_923921.2 linkuse as main transcriptn.391+16666C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GMPPAENST00000313597.10 linkuse as main transcriptc.40+15G>A intron_variant 1 NM_013335.4 P1Q96IJ6-1
ASIC4-AS1ENST00000429882.1 linkuse as main transcriptn.182+16666C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00908
AC:
1382
AN:
152120
Hom.:
21
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0313
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00367
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00718
GnomAD3 exomes
AF:
0.00246
AC:
619
AN:
251420
Hom.:
10
AF XY:
0.00182
AC XY:
247
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.0325
Gnomad AMR exome
AF:
0.00150
Gnomad ASJ exome
AF:
0.000893
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000176
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.00101
AC:
1479
AN:
1461124
Hom.:
26
Cov.:
30
AF XY:
0.000876
AC XY:
637
AN XY:
726906
show subpopulations
Gnomad4 AFR exome
AF:
0.0345
Gnomad4 AMR exome
AF:
0.00148
Gnomad4 ASJ exome
AF:
0.000880
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000801
Gnomad4 OTH exome
AF:
0.00212
GnomAD4 genome
AF:
0.00908
AC:
1383
AN:
152238
Hom.:
21
Cov.:
32
AF XY:
0.00857
AC XY:
638
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.0312
Gnomad4 AMR
AF:
0.00366
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00710
Alfa
AF:
0.00572
Hom.:
4
Bravo
AF:
0.0102
Asia WGS
AF:
0.00289
AC:
10
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsJun 12, 2017- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxFeb 15, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Alacrima, achalasia, and intellectual disability syndrome Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 05, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.67
CADD
Benign
2.3
DANN
Benign
0.82

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: rs80239182; hg19: chr2-220364752; API