chr17-63685825-T-C

Position:

• chr17-63685825-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_002401.5(MAP3K3):​c.710+235T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.273 in 152,194 control chromosomes in the GnomAD database, including 7,227 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency: Genomes: 𝑓 0.27 (7227 hom., cov: 33)
• Consequence: MAP3K3 NM_002401.5 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.803

Genes affected

MAP3K3 (HGNC:6855): (mitogen-activated protein kinase kinase kinase 3) This gene product is a 626-amino acid polypeptide that is 96.5% identical to mouse Mekk3. Its catalytic domain is closely related to those of several other kinases, including mouse Mekk2, tobacco NPK, and yeast Ste11. Northern blot analysis revealed a 4.6-kb transcript that appears to be ubiquitously expressed. This protein directly regulates the stress-activated protein kinase (SAPK) and extracellular signal-regulated protein kinase (ERK) pathways by activating SEK and MEK1/2 respectively; it does not regulate the p38 pathway. In cotransfection assays, it enhanced transcription from a nuclear factor kappa-B (NFKB)-dependent reporter gene, consistent with a role in the SAPK pathway. Alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq, Jul 2008]

LOC101927898 (HGNC:):

STRADA (HGNC:30172): (STE20 related adaptor alpha) The protein encoded by this gene contains a STE20-like kinase domain, but lacks several residues that are critical for catalytic activity, so it is termed a 'pseudokinase'. The protein forms a heterotrimeric complex with serine/threonine kinase 11 (STK11, also known as LKB1) and the scaffolding protein calcium binding protein 39 (CAB39, also known as MO25). The protein activates STK11 leading to the phosphorylation of both proteins and excluding STK11 from the nucleus. The protein is necessary for STK11-induced G1 cell cycle arrest. A mutation in this gene has been shown to result in polyhydramnios, megalencephaly, and symptomatic epilepsy (PMSE) syndrome. Multiple transcript variants encoding different isoforms have been found for this gene. Additional transcript variants have been described but their full-length nature is not known. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 17-63685825-T-C is Benign according to our data. Variant chr17-63685825-T-C is described in ClinVar as [Benign]. Clinvar id is 1250681.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.536 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MAP3K3	NM_002401.5	c.710+235T>C		intron_variant		ENST00000361733.8	NP_002392.2
LOC101927898	XR_243740.4	n.609-3067A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MAP3K3	ENST00000361733.8	c.710+235T>C		intron_variant		1	NM_002401.5	ENSP00000354485	A1

Frequencies

GnomAD3 genomes AF: 0.273 AC: 41522 AN: 152074 Hom.: 7213 Cov.: 33

Gnomad AFR AF: 0.0746

Gnomad AMI AF: 0.202

Gnomad AMR AF: 0.343

Gnomad ASJ AF: 0.239

Gnomad EAS AF: 0.516

Gnomad SAS AF: 0.552

Gnomad FIN AF: 0.438

Gnomad MID AF: 0.209

Gnomad NFE AF: 0.318

Gnomad OTH AF: 0.259

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

GnomAD4 genome AF: 0.273 AC: 41544 AN: 152194 Hom.: 7227 Cov.: 33 AF XY: 0.285 AC XY: 21183 AN XY: 74404

Gnomad4 AFR AF: 0.0744

Gnomad4 AMR AF: 0.344

Gnomad4 ASJ AF: 0.239

Gnomad4 EAS AF: 0.517

Gnomad4 SAS AF: 0.553

Gnomad4 FIN AF: 0.438

Gnomad4 NFE AF: 0.318

Gnomad4 OTH AF: 0.263

Alfa AF: 0.303 Hom.: 2334

Bravo AF: 0.253

Asia WGS AF: 0.509 AC: 1767 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 12, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	7.3
DANN	Benign	0.56

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

Other links and lift over

dbSNP: rs3785574; hg19: chr17-61763185;