chr19-55303314-G-C

Position:

• chr19-55303314-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_032430.2(BRSK1):​c.1032G>C​(p.Glu344Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,298 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: BRSK1 NM_032430.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.831

Genes affected

BRSK1 (HGNC:18994): (BR serine/threonine kinase 1) Enables magnesium ion binding activity; protein serine/threonine kinase activity; and tau-protein kinase activity. Involved in mitotic G2 DNA damage checkpoint signaling and protein phosphorylation. Acts upstream of or within G2/M transition of mitotic cell cycle; peptidyl-serine phosphorylation; and response to UV. Located in cell junction; cytoplasm; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, BRSK1
• BP4: Computational evidence support a benign effect (MetaRNN=0.12388685).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BRSK1	NM_032430.2	c.1032G>C	p.Glu344Asp	missense_variant	11/19	ENST00000309383.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BRSK1	ENST00000309383.6	c.1032G>C	p.Glu344Asp	missense_variant	11/19	1	NM_032430.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461298 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726980

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 22, 2023

The c.1032G>C (p.E344D) alteration is located in exon 11 (coding exon 11) of the BRSK1 gene. This alteration results from a G to C substitution at nucleotide position 1032, causing the glutamic acid (E) at amino acid position 344 to be replaced by an aspartic acid (D). 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	0.12
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	18
DANN	Uncertain	0.99
Eigen	Benign	-0.36
Eigen_PC	Benign	-0.27
FATHMM_MKL	Benign	0.75	D
LIST_S2	Uncertain	0.93	D;D;D;D
M_CAP	Benign	0.033	D
MetaRNN	Benign	0.12	T;T;T;T
MetaSVM	Benign	-0.84	T
MutationTaster	Benign	0.70	N;N;N
PrimateAI	Uncertain	0.72	T
Sift4G	Benign	0.47	T;T;T;T
Polyphen		0.14	B;B;.;.
Vest4		0.23
MutPred		0.32		.;Loss of ubiquitination at K348 (P = 0.2839);.;.;
MVP		0.46
MPC		0.93
ClinPred		0.20	T
GERP RS		1.8
Varity_R		0.092
gMVP		0.92

Splicing

Name	Calibrated prediction	Score	Prediction
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-55814682;