22-21772888-G-C

Variant names:

• chr22-21772888-G-C
• NM_002745.5:c.951C>G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002745.5(MAPK1):​c.951C>G​(p.Tyr317*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MAPK1 NM_002745.5 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0300

Genes affected

MAPK1 (HGNC:6871): (mitogen-activated protein kinase 1) This gene encodes a member of the MAP kinase family. MAP kinases, also known as extracellular signal-regulated kinases (ERKs), act as an integration point for multiple biochemical signals, and are involved in a wide variety of cellular processes such as proliferation, differentiation, transcription regulation and development. The activation of this kinase requires its phosphorylation by upstream kinases. Upon activation, this kinase translocates to the nucleus of the stimulated cells, where it phosphorylates nuclear targets. One study also suggests that this protein acts as a transcriptional repressor independent of its kinase activity. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. Two alternatively spliced transcript variants encoding the same protein, but differing in the UTRs, have been reported for this gene. [provided by RefSeq, Jan 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAPK1	NM_002745.5	c.951C>G	p.Tyr317*	stop_gained	Exon 7 of 9	ENST00000215832.11	NP_002736.3
MAPK1	NM_138957.3	c.951C>G	p.Tyr317*	stop_gained	Exon 7 of 8		NP_620407.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAPK1	ENST00000215832.11	c.951C>G	p.Tyr317*	stop_gained	Exon 7 of 9	1	NM_002745.5	ENSP00000215832.7
MAPK1	ENST00000398822.7	c.951C>G	p.Tyr317*	stop_gained	Exon 7 of 8	1		ENSP00000381803.3
MAPK1	ENST00000544786.1	c.819C>G	p.Tyr273*	stop_gained	Exon 6 of 7	1		ENSP00000440842.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.31
CADD	Pathogenic	36
DANN	Benign	0.95
Eigen	Benign	-0.34
Eigen_PC	Benign	-0.66
FATHMM_MKL	Benign	0.73	D
Vest4		0.96
GERP RS		-8.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: chr22-22127177;