rs727504370

chr19-4110558-T-Achr19-4110558-T-Cchr19-4110558-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PM5

The NM_030662.4(MAP2K2):c.401A>T(p.Tyr134Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. Y134C) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MAP2K2 NM_030662.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.83

Genes affected

MAP2K2 (HGNC:6842): (mitogen-activated protein kinase kinase 2) The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family. This kinase is known to play a critical role in mitogen growth factor signal transduction. It phosphorylates and thus activates MAPK1/ERK2 and MAPK2/ERK3. The activation of this kinase itself is dependent on the Ser/Thr phosphorylation by MAP kinase kinase kinases. Mutations in this gene cause cardiofaciocutaneous syndrome (CFC syndrome), a disease characterized by heart defects, cognitive disability, and distinctive facial features similar to those found in Noonan syndrome. The inhibition or degradation of this kinase is also found to be involved in the pathogenesis of Yersinia and anthrax. A pseudogene, which is located on chromosome 7, has been identified for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_030662.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr19-4110558-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 177868.Status of the report is reviewed_by_expert_panel, 3 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MAP2K2	NM_030662.4	c.401A>T	p.Tyr134Phe	missense_variant	3/11	ENST00000262948.10
MAP2K2	XM_006722799.3	c.401A>T	p.Tyr134Phe	missense_variant	3/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MAP2K2	ENST00000262948.10	c.401A>T	p.Tyr134Phe	missense_variant	3/11	1	NM_030662.4	P1
MAP2K2	ENST00000394867.9	n.840A>T		non_coding_transcript_exon_variant	2/10	5
MAP2K2	ENST00000599345.1	n.598A>T		non_coding_transcript_exon_variant	3/7	5
MAP2K2	ENST00000687128.1	n.840A>T		non_coding_transcript_exon_variant	2/7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
Cadd	Uncertain	25
Dann	Uncertain	0.99
DEOGEN2	Benign	0.40	T;T
Eigen	Uncertain	0.21
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Uncertain	0.26	D
MetaRNN	Uncertain	0.74	D;D
MetaSVM	Uncertain	0.33	D
MutationAssessor	Benign	1.6	L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.90	D
PROVEAN	Uncertain	-2.9	D;D
REVEL	Pathogenic	0.70
Sift	Benign	0.12	T;T
Sift4G	Benign	0.099	T;T
Polyphen		0.24	B;.
Vest4		0.69
MutPred		0.80		Loss of sheet (P = 0.0817);.;
MVP		0.82
MPC		1.0
ClinPred		0.95	D
GERP RS		5.3
Varity_R		0.81
gMVP		0.44

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-4110556;