6-161034340-G-T

Variant names:

• chr6-161034340-G-T
• rs141320593
• NM_005922.4:c.234G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_005922.4(MAP3K4):​c.234G>T​(p.Glu78Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,696 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MAP3K4 NM_005922.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.867
• Publications: 0 publications found

Genes affected

MAP3K4 (HGNC:6856): (mitogen-activated protein kinase kinase kinase 4) The central core of each mitogen-activated protein kinase (MAPK) pathway is a conserved cascade of 3 protein kinases: an activated MAPK kinase kinase (MAPKKK) phosphorylates and activates a specific MAPK kinase (MAPKK), which then activates a specific MAPK. While the ERK MAPKs are activated by mitogenic stimulation, the CSBP2 and JNK MAPKs are activated by environmental stresses such as osmotic shock, UV irradiation, wound stress, and inflammatory factors. This gene encodes a MAPKKK, the MEKK4 protein, also called MTK1. This protein contains a protein kinase catalytic domain at the C terminus. The N-terminal nonkinase domain may contain a regulatory domain. Expression of MEKK4 in mammalian cells activated the CSBP2 and JNK MAPK pathways, but not the ERK pathway. In vitro kinase studies indicated that recombinant MEKK4 can specifically phosphorylate and activate PRKMK6 and SERK1, MAPKKs that activate CSBP2 and JNK, respectively but cannot phosphorylate PRKMK1, an MAPKK that activates ERKs. MEKK4 is a major mediator of environmental stresses that activate the CSBP2 MAPK pathway, and a minor mediator of the JNK pathway. Several alternatively spliced transcripts encoding distinct isoforms have been described. [provided by RefSeq, May 2014]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06782615).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005922.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAP3K4	NM_005922.4	MANE Select	c.234G>T	p.Glu78Asp	missense	Exon 2 of 27	NP_005913.3	Q9Y6R4-1
	MAP3K4	NM_001301072.2		c.234G>T	p.Glu78Asp	missense	Exon 2 of 27	NP_001288001.2	F5H538
	MAP3K4	NM_006724.4		c.234G>T	p.Glu78Asp	missense	Exon 2 of 26	NP_006715.3	Q9Y6R4-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAP3K4	ENST00000392142.9	TSL:1 MANE Select	c.234G>T	p.Glu78Asp	missense	Exon 2 of 27	ENSP00000375986.4	Q9Y6R4-1
	MAP3K4	ENST00000366919.6	TSL:1	c.234G>T	p.Glu78Asp	missense	Exon 2 of 26	ENSP00000355886.2	Q9Y6R4-2
	MAP3K4	ENST00000490904.6	TSL:1	n.234G>T		non_coding_transcript_exon	Exon 2 of 28	ENSP00000446303.1	F5H1X6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461696 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727162

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111856

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	13
DANN	Uncertain	0.99
DEOGEN2	Benign	0.044	T
Eigen	Benign	-0.83
Eigen_PC	Benign	-0.74
FATHMM_MKL	Benign	0.57	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.068	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.1	L
PhyloP100		0.87
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-0.59	N
REVEL	Benign	0.13
Sift	Benign	0.099	T
Sift4G	Uncertain	0.057	T
Polyphen		0.011	B
Vest4		0.11
MutPred		0.067		Loss of catalytic residue at E78 (P = 0.1487)
MVP		0.45
MPC		0.27
ClinPred		0.12	T
GERP RS		0.39
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.053
gMVP		0.058
Mutation Taster		=92/8	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.17		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs141320593; hg19: chr6-161455372; COSMIC: COSV62335777; COSMIC: COSV62335777;