7-44220086-G-A

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_001220.5(CAMK2B):​c.1977C>T​(p.Gly659=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00269 in 1,601,746 control chromosomes in the GnomAD database, including 110 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.013 ( 57 hom., cov: 34)
Exomes 𝑓: 0.0016 ( 53 hom. )

Consequence

CAMK2B
NM_001220.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -4.75
Variant links:
Genes affected
CAMK2B (HGNC:1461): (calcium/calmodulin dependent protein kinase II beta) The product of this gene 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 beta chain. It is possible that distinct isoforms of this chain have different cellular localizations and interact differently with calmodulin. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 7-44220086-G-A is Benign according to our data. Variant chr7-44220086-G-A is described in ClinVar as [Benign]. Clinvar id is 783493.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-4.75 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0134 (2046/152304) while in subpopulation AFR AF= 0.0455 (1892/41560). AF 95% confidence interval is 0.0438. There are 57 homozygotes in gnomad4. There are 943 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.
BS2
High AC in GnomAd4 at 2046 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CAMK2BNM_001220.5 linkuse as main transcriptc.1977C>T p.Gly659= synonymous_variant 23/24 ENST00000395749.7 NP_001211.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CAMK2BENST00000395749.7 linkuse as main transcriptc.1977C>T p.Gly659= synonymous_variant 23/241 NM_001220.5 ENSP00000379098 Q13554-1

Frequencies

GnomAD3 genomes
AF:
0.0134
AC:
2042
AN:
152186
Hom.:
56
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0456
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00641
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00249
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000338
Gnomad OTH
AF:
0.0100
GnomAD3 exomes
AF:
0.00372
AC:
856
AN:
230216
Hom.:
20
AF XY:
0.00274
AC XY:
344
AN XY:
125652
show subpopulations
Gnomad AFR exome
AF:
0.0467
Gnomad AMR exome
AF:
0.00237
Gnomad ASJ exome
AF:
0.000103
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00194
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000242
Gnomad OTH exome
AF:
0.00297
GnomAD4 exome
AF:
0.00156
AC:
2255
AN:
1449442
Hom.:
53
Cov.:
32
AF XY:
0.00141
AC XY:
1019
AN XY:
720754
show subpopulations
Gnomad4 AFR exome
AF:
0.0468
Gnomad4 AMR exome
AF:
0.00265
Gnomad4 ASJ exome
AF:
0.0000385
Gnomad4 EAS exome
AF:
0.0000255
Gnomad4 SAS exome
AF:
0.00202
Gnomad4 FIN exome
AF:
0.0000210
Gnomad4 NFE exome
AF:
0.000153
Gnomad4 OTH exome
AF:
0.00368
GnomAD4 genome
AF:
0.0134
AC:
2046
AN:
152304
Hom.:
57
Cov.:
34
AF XY:
0.0127
AC XY:
943
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.0455
Gnomad4 AMR
AF:
0.00640
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00249
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000338
Gnomad4 OTH
AF:
0.00992
Alfa
AF:
0.00554
Hom.:
7
Bravo
AF:
0.0156
Asia WGS
AF:
0.00202
AC:
8
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

CAMK2B-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 28, 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). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.66
CADD
Benign
1.7
DANN
Benign
0.91

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: rs77158048; hg19: chr7-44259685; COSMIC: COSV51662860; API