chr12-123162187-C-T

Position:

• chr12-123162187-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022782.4(MPHOSPH9):​c.3061G>A​(p.Val1021Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000708 in 1,411,962 control chromosomes in the GnomAD database, with no homozygous occurrence. 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)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: MPHOSPH9 NM_022782.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.89

Genes affected

MPHOSPH9 (HGNC:7215): (M-phase phosphoprotein 9) Located in Golgi apparatus and centriole. Implicated in multiple sclerosis. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1965886).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MPHOSPH9	NM_022782.4	c.3061G>A	p.Val1021Ile	missense_variant	21/24	ENST00000606320.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MPHOSPH9	ENST00000606320.6	c.3061G>A	p.Val1021Ile	missense_variant	21/24	5	NM_022782.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000422 AC: 1 AN: 236810 Hom.: 0 AF XY: 0.00000780 AC XY: 1 AN XY: 128232

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000333

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 7.08e-7 AC: 1 AN: 1411962 Hom.: 0 Cov.: 28 AF XY: 0.00000143 AC XY: 1 AN XY: 700598

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000243

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

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

Apr 18, 2023

The c.2605G>A (p.V869I) alteration is located in exon 17 (coding exon 17) of the MPHOSPH9 gene. This alteration results from a G to A substitution at nucleotide position 2605, causing the valine (V) at amino acid position 869 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	0.087
BayesDel_addAF	Benign	-0.026	T
BayesDel_noAF	Benign	-0.28
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.046	T;T
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.52
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.89	D;D
M_CAP	Benign	0.0048	T
MetaRNN	Benign	0.20	T;T
MetaSVM	Benign	-0.77	T
MutationAssessor	Uncertain	2.7	.;M
MutationTaster	Benign	1.0	D;N;N;N
PrimateAI	Benign	0.39	T
REVEL	Benign	0.16
Sift4G	Benign	0.12	T;T
Vest4		0.15
MVP		0.52
ClinPred		0.83	D
GERP RS		5.7
Varity_R		0.064
gMVP		0.095

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: rs752545389; hg19: chr12-123646734; COSMIC: COSV100186366; COSMIC: COSV100186366;