6-136558807-T-C

Position:

• chr6-136558807-T-C

Variant summary

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

The NM_005923.4(MAP3K5):​c.4057A>G​(p.Arg1353Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,440,556 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MAP3K5 NM_005923.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.60

Genes affected

MAP3K5 (HGNC:6857): (mitogen-activated protein kinase kinase kinase 5) Mitogen-activated protein kinase (MAPK) signaling cascades include MAPK or extracellular signal-regulated kinase (ERK), MAPK kinase (MKK or MEK), and MAPK kinase kinase (MAPKKK or MEKK). MAPKK kinase/MEKK phosphorylates and activates its downstream protein kinase, MAPK kinase/MEK, which in turn activates MAPK. The kinases of these signaling cascades are highly conserved, and homologs exist in yeast, Drosophila, and mammalian cells. MAPKKK5 contains 1,374 amino acids with all 11 kinase subdomains. Northern blot analysis shows that MAPKKK5 transcript is abundantly expressed in human heart and pancreas. The MAPKKK5 protein phosphorylates and activates MKK4 (aliases SERK1, MAPKK4) in vitro, and activates c-Jun N-terminal kinase (JNK)/stress-activated protein kinase (SAPK) during transient expression in COS and 293 cells; MAPKKK5 does not activate MAPK/ERK. [provided by RefSeq, Jul 2008]

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/exons	MANE	Protein	UniProt
MAP3K5	NM_005923.4	c.4057A>G	p.Arg1353Gly	missense_variant	29/30	ENST00000359015.5	NP_005914.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MAP3K5	ENST00000359015.5	c.4057A>G	p.Arg1353Gly	missense_variant	29/30	1	NM_005923.4	ENSP00000351908.4
MAP3K5	ENST00000698928.1	c.4384A>G	p.Arg1462Gly	missense_variant	30/31			ENSP00000514039.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000139 AC: 2 AN: 1440556 Hom.: 0 Cov.: 27 AF XY: 0.00000279 AC XY: 2 AN XY: 717928

Gnomad4 AFR exome AF: 0.0000303

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.15e-7

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

Jul 25, 2023

The c.4057A>G (p.R1353G) alteration is located in exon 29 (coding exon 29) of the MAP3K5 gene. This alteration results from a A to G substitution at nucleotide position 4057, causing the arginine (R) at amino acid position 1353 to be replaced by a glycine (G). 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	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Benign	20
DANN	Benign	0.79
DEOGEN2	Benign	0.23	T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.15
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.047	D
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-0.78	T
MutationAssessor	Benign	0.97	L
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.49
Sift	Benign	0.29	T
Sift4G	Benign	0.60	T
Polyphen		0.27	B
Vest4		0.62
MutPred		0.45		Loss of MoRF binding (P = 0.0283);
MVP		0.93
MPC		0.53
ClinPred		0.53	D
GERP RS		2.7
Varity_R		0.13
gMVP		0.57

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: rs1830369417; hg19: chr6-136879945;