Variant 11-118260165-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_005797.4(MPZL2):c.473T>C(p.Ile158Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

MPZL2
NM_005797.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.03

Variant links:

Genes affected

MPZL2 (HGNC:3496): (myelin protein zero like 2) Thymus development depends on a complex series of interactions between thymocytes and the stromal component of the organ. Epithelial V-like antigen (EVA) is expressed in thymus epithelium and strongly downregulated by thymocyte developmental progression. This gene is expressed in the thymus and in several epithelial structures early in embryogenesis. It is highly homologous to the myelin protein zero and, in thymus-derived epithelial cell lines, is poorly soluble in nonionic detergents, strongly suggesting an association to the cytoskeleton. Its capacity to mediate cell adhesion through a homophilic interaction and its selective regulation by T cell maturation might imply the participation of EVA in the earliest phases of thymus organogenesis. The protein bears a characteristic V-type domain and two potential N-glycosylation sites in the extracellular domain; a putative serine phosphorylation site for casein kinase 2 is also present in the cytoplasmic tail. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

MPZL2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.773

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MPZL2	NM_005797.4 link	c.473T>C	p.Ile158Thr	missense_variant	Exon 4 of 6	ENST00000278937.7	NP_005788.1	O60487A0A024R3K1
MPZL2	NM_144765.3 link	c.473T>C	p.Ile158Thr	missense_variant	Exon 4 of 5		NP_658911.1	O60487A0A024R3K1
MPZL2	XM_047426229.1 link	c.409T>C	p.Leu137Leu	synonymous_variant	Exon 4 of 4		XP_047282185.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MPZL2	ENST00000278937.7 link	c.473T>C	p.Ile158Thr	missense_variant	Exon 4 of 6	1	NM_005797.4	ENSP00000278937.2	O60487
MPZL2	ENST00000438295.2 link	c.473T>C	p.Ile158Thr	missense_variant	Exon 4 of 5	1		ENSP00000408362.2	O60487
MPZL2	ENST00000529376.5 link	n.603T>C		non_coding_transcript_exon_variant	Exon 4 of 4	2
MPZL2	ENST00000534175.6 link	n.521T>C		non_coding_transcript_exon_variant	Exon 3 of 5	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461786

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727192

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000719

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Oct 25, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.473T>C (p.I158T) alteration is located in exon 4 (coding exon 4) of the MPZL2 gene. This alteration results from a T to C substitution at nucleotide position 473, causing the isoleucine (I) at amino acid position 158 to be replaced by a threonine (T). 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

Uncertain

0.38

BayesDel_addAF

Pathogenic

0.46

BayesDel_noAF

Pathogenic

0.42

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

T;T

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.86

.;D

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.77

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.7

M;M

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-3.4

D;D

REVEL

Pathogenic

0.74

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0030

D;D

Polyphen

1.0

D;D

Vest4

0.81

MutPred

0.30

Loss of stability (P = 0.0459);Loss of stability (P = 0.0459);

MVP

0.66

MPC

0.35

ClinPred

0.97

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.50

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over