2-190881163-C-G

Position:

• chr2-190881163-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014905.5(GLS):​c.79C>G​(p.Arg27Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: GLS NM_014905.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.387

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]

(HGNC:):

ACMG classification

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=0.24520457).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GLS	NM_014905.5	c.79C>G	p.Arg27Gly	missense_variant	1/18	ENST00000320717.8
LOC124906110	XR_007087791.1	n.482G>C		non_coding_transcript_exon_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GLS	ENST00000320717.8	c.79C>G	p.Arg27Gly	missense_variant	1/18	1	NM_014905.5	P1
	ENST00000413911.1	n.553G>C		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 09, 2021

The c.79C>G (p.R27G) alteration is located in exon 1 (coding exon 1) of the GLS gene. This alteration results from a C to G substitution at nucleotide position 79, causing the arginine (R) at amino acid position 27 to be replaced by a glycine (G). 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	0.079
BayesDel_addAF	Uncertain	0.019	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.042	T;.
Eigen	Benign	-0.051
Eigen_PC	Benign	-0.072
FATHMM_MKL	Benign	0.38	N
LIST_S2	Benign	0.79	T;T
M_CAP	Pathogenic	0.54	D
MetaRNN	Benign	0.25	T;T
MetaSVM	Benign	-0.90	T
MutationAssessor	Benign	0.55	N;N
MutationTaster	Benign	1.0	N;N
PrimateAI	Pathogenic	0.92	D
PROVEAN	Benign	-0.60	N;N
REVEL	Benign	0.087
Sift	Uncertain	0.025	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		0.56	P;P
Vest4		0.47
MutPred		0.29		Loss of helix (P = 0.0068);Loss of helix (P = 0.0068);
MVP		0.69
MPC		1.2
ClinPred		0.79	D
GERP RS		2.2
Varity_R		0.10
gMVP		0.40

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-191745889;