10-73842485-GCG-TAA

Variant names:

• chr10-73842485-GCG-TAA
• NM_001367534.1:c.874_876delCGCinsTTA
• CAMK2G p.Arg292Leu

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM5

The NM_001367534.1(CAMK2G):​c.874_876delCGCinsTTA​(p.Arg292Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R292P) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CAMK2G NM_001367534.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.88
• Publications: 0 publications found

Genes affected

CAMK2G (HGNC:1463): (calcium/calmodulin dependent protein kinase II gamma) The product of this gene is one of the four subunits of an enzyme which belongs to the serine/threonine protein kinase family, and to the Ca(2+)/calmodulin-dependent protein kinase subfamily. Calcium signaling is crucial for several aspects of plasticity at glutamatergic synapses. In mammalian cells the enzyme is composed of four different chains: alpha, beta, gamma, and delta. The product of this gene is a gamma chain. Many alternatively spliced transcripts encoding different isoforms have been described but the full-length nature of all the variants has not been determined.[provided by RefSeq, Mar 2011]

CAMK2G Gene-Disease associations (from GenCC):

• intellectual developmental disorder 59

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: ClinGen, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Illumina
• genetic developmental and epileptic encephalopathy

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ENSG00000229990 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM5: Other missense variant is known to change same aminoacid residue: Variant chr10-73842486-C-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 39975.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001367534.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CAMK2G	NM_001367534.1	MANE Select	c.874_876delCGCinsTTA	p.Arg292Leu	missense	N/A	NP_001354463.1	H0Y6G2
	CAMK2G	NM_001320898.2		c.874_876delCGCinsTTA	p.Arg292Leu	missense	N/A	NP_001307827.1
	CAMK2G	NM_001367544.1		c.874_876delCGCinsTTA	p.Arg292Leu	missense	N/A	NP_001354473.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CAMK2G	ENST00000423381.6	TSL:5 MANE Select	c.874_876delCGCinsTTA	p.Arg292Leu	missense	N/A	ENSP00000410298.3	H0Y6G2
	CAMK2G	ENST00000322635.7	TSL:1	c.874_876delCGCinsTTA	p.Arg292Leu	missense	N/A	ENSP00000315599.3	Q13555-5
	CAMK2G	ENST00000433289.5	TSL:1	c.679_681delCGCinsTTA	p.Arg227Leu	missense	N/A	ENSP00000393784.1	Q8WU40

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.9

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr10-75602243;