17-45264701-C-T

Position:

• chr17-45264701-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_003954.5(MAP3K14):​c.2779G>A​(p.Ala927Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: MAP3K14 NM_003954.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.82

Genes affected

MAP3K14 (HGNC:6853): (mitogen-activated protein kinase kinase kinase 14) This gene encodes mitogen-activated protein kinase kinase kinase 14, which is a serine/threonine protein-kinase. This kinase binds to TRAF2 and stimulates NF-kappaB activity. It shares sequence similarity with several other MAPKK kinases. It participates in an NF-kappaB-inducing signalling cascade common to receptors of the tumour-necrosis/nerve-growth factor (TNF/NGF) family and to the interleukin-1 type-I receptor. [provided by RefSeq, Jul 2008]

MAP3K14-AS1 (HGNC:44359): (MAP3K14 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MAP3K14. . Trascript score misZ 4.5031 (greater than threshold 3.09). GenCC has associacion of gene with NIK deficiency.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.789

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MAP3K14	NM_003954.5	c.2779G>A	p.Ala927Thr	missense_variant	16/16	ENST00000344686.8
MAP3K14-AS1	NR_110325.1	n.260-2412C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAP3K14	ENST00000344686.8	c.2779G>A	p.Ala927Thr	missense_variant	16/16	1	NM_003954.5	P1
MAP3K14-AS1	ENST00000657572.1	n.170-2412C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

NIK deficiency Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 05, 2018

This sequence change replaces alanine with threonine at codon 927 of the MAP3K14 protein (p.Ala927Thr). The alanine residue is highly conserved and there is a small physicochemical difference between alanine and threonine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with MAP3K14-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Pathogenic	26
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.46	T;T;T
Eigen	Pathogenic	0.75
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.85	.;D;.
MetaRNN	Pathogenic	0.79	D;D;D
MetaSVM	Uncertain	-0.21	T
MutationAssessor	Uncertain	2.1	M;M;M
PrimateAI	Uncertain	0.63	T
REVEL	Uncertain	0.36
Sift4G	Pathogenic	0.0	.;D;D
Polyphen		1.0	D;D;D
Vest4		0.89, 0.89
MutPred		0.36		Gain of phosphorylation at A927 (P = 0.0596);Gain of phosphorylation at A927 (P = 0.0596);Gain of phosphorylation at A927 (P = 0.0596);
MVP		0.34
ClinPred		0.97	D
GERP RS		5.7
Varity_R		0.33
gMVP		0.79

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: rs1567984601; hg19: chr17-43342068;