5-10402098-G-A

Position:

• chr5-10402098-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_005885.4(MARCHF6):​c.1012G>A​(p.Val338Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MARCHF6 NM_005885.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.34

Genes affected

MARCHF6 (HGNC:30550): (membrane associated ring-CH-type finger 6) This gene encodes a member of a family of membrane-associated E3 ubiquitin ligases containing RING-CH-type zinc finger motifs. Ubiquitination of type II deiodinase by the encoded protein is an important regulatory step in thyroid hormone signalling. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jul 2012]

MARCHF6 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 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), MARCHF6. . Gene score misZ 3.8752 (greater than the threshold 3.09). Trascript score misZ 3.9738 (greater than threshold 3.09). GenCC has associacion of gene with benign adult familial myoclonic epilepsy.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MARCHF6	NM_005885.4	c.1012G>A	p.Val338Ile	missense_variant	12/26	ENST00000274140.10	NP_005876.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MARCHF6	ENST00000274140.10	c.1012G>A	p.Val338Ile	missense_variant	12/26	1	NM_005885.4	ENSP00000274140.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

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

May 01, 2024

The c.1012G>A (p.V338I) alteration is located in exon 12 (coding exon 12) of the MARCH6 gene. This alteration results from a G to A substitution at nucleotide position 1012, causing the valine (V) at amino acid position 338 to be replaced by an isoleucine (I). 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	0.082
BayesDel_addAF	Benign	-0.056	T
BayesDel_noAF	Benign	-0.32
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.063	.;.;T;.
Eigen	Benign	-0.058
Eigen_PC	Benign	0.19
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D;D;D;D
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.29	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.34	.;.;N;.
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	0.21	N;N;N;N
REVEL	Benign	0.16
Sift	Benign	0.23	T;T;T;T
Sift4G	Benign	0.45	T;T;T;T
Polyphen		0.022	.;.;B;.
Vest4		0.46
MutPred		0.26		.;.;Gain of catalytic residue at L343 (P = 0.122);.;
MVP		0.35
MPC		0.56
ClinPred		0.90	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.29

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.30		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.30		Position offset: 4

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: chr5-10402210;