chr2-190931645-A-C

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_014905.5(GLS):​c.1650+8A>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00131 in 1,350,052 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.00070 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0014 ( 30 hom. )

Consequence

GLS
NM_014905.5 splice_region, intron

Scores

2
Splicing: ADA: 0.0003983
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.994
Variant links:
Genes affected
GLS (HGNC:4331): (glutaminase) This gene encodes the K-type mitochondrial glutaminase. The encoded protein is an phosphate-activated amidohydrolase that catalyzes the hydrolysis of glutamine to glutamate and ammonia. This protein is primarily expressed in the brain and kidney plays an essential role in generating energy for metabolism, synthesizing the brain neurotransmitter glutamate and maintaining acid-base balance in the kidney. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2012]
STAT1 (HGNC:11362): (signal transducer and activator of transcription 1) The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. The protein encoded by this gene can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. The protein plays an important role in immune responses to viral, fungal and mycobacterial pathogens. Mutations in this gene are associated with Immunodeficiency 31B, 31A, and 31C. [provided by RefSeq, Jun 2020]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 2-190931645-A-C is Benign according to our data. Variant chr2-190931645-A-C is described in ClinVar as [Benign]. Clinvar id is 3050373.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000697 (106/152170) while in subpopulation SAS AF= 0.0218 (105/4824). AF 95% confidence interval is 0.0184. There are 1 homozygotes in gnomad4. There are 80 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 30 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GLSNM_014905.5 linkuse as main transcriptc.1650+8A>C splice_region_variant, intron_variant ENST00000320717.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GLSENST00000320717.8 linkuse as main transcriptc.1650+8A>C splice_region_variant, intron_variant 1 NM_014905.5 P1O94925-1

Frequencies

GnomAD3 genomes
AF:
0.000697
AC:
106
AN:
152052
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0217
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000481
GnomAD3 exomes
AF:
0.00285
AC:
656
AN:
230320
Hom.:
9
AF XY:
0.00391
AC XY:
489
AN XY:
125094
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0246
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000187
Gnomad OTH exome
AF:
0.000911
GnomAD4 exome
AF:
0.00139
AC:
1665
AN:
1197882
Hom.:
30
Cov.:
16
AF XY:
0.00203
AC XY:
1234
AN XY:
607632
show subpopulations
Gnomad4 AFR exome
AF:
0.0000363
Gnomad4 AMR exome
AF:
0.0000247
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0207
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000181
Gnomad4 OTH exome
AF:
0.00130
GnomAD4 genome
AF:
0.000697
AC:
106
AN:
152170
Hom.:
1
Cov.:
32
AF XY:
0.00108
AC XY:
80
AN XY:
74392
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0218
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000476
Alfa
AF:
0.000513
Hom.:
0
Bravo
AF:
0.000155
Asia WGS
AF:
0.0110
AC:
37
AN:
3468

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

GLS-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 10, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
11
DANN
Benign
0.71

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00040
dbscSNV1_RF
Benign
0.080
SpliceAI score (max)
0.010
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: rs575613519; hg19: chr2-191796371; API