Genetic Variant NM_018174.6:c.148G>A (chr19-17720965-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018174.6(MAP1S):c.148G>A(p.Val50Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,862 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. V50F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MAP1S
NM_018174.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.200

Publications

2 publications found

Variant links:

Genes affected

MAP1S (HGNC:15715): (microtubule associated protein 1S) Enables DNA binding activity and cytoskeletal protein binding activity. Involved in microtubule bundle formation; neuron projection morphogenesis; and regulation of chromatin disassembly. Located in several cellular components, including microtubule cytoskeleton; nuclear lumen; and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MAP1S links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10994133).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAP1S	NM_018174.6 link	c.148G>A	p.Val50Ile	missense_variant	Exon 2 of 7	ENST00000324096.9	NP_060644.4	Q66K74-1
MAP1S	NM_001308363.2 link	c.70G>A	p.Val24Ile	missense_variant	Exon 2 of 7		NP_001295292.1	Q66K74-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAP1S	ENST00000324096.9 link	c.148G>A	p.Val50Ile	missense_variant	Exon 2 of 7	1	NM_018174.6	ENSP00000325313.3		Q66K74-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251474

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461862

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111996

Other (OTH)

AF:

0.0000166

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.415

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.80

CADD

Benign

0.0050

(source)

DANN

Benign

0.63

DEOGEN2

Benign

0.0098

T;T;.;.

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.063

LIST_S2

Benign

0.066

T;T;T;T

M_CAP

Benign

0.0069

MetaRNN

Benign

0.11

T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.10

.;N;.;.

PhyloP100

-0.20

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.21

.;N;.;N

REVEL

Benign

0.011

Sift

Benign

0.52

.;T;.;T

Sift4G

Benign

0.80

T;T;T;T

Polyphen

0.0010

.;B;.;.

Vest4

0.056, 0.062

MutPred

0.25

Loss of catalytic residue at V50 (P = 0.1032);Loss of catalytic residue at V50 (P = 0.1032);Loss of catalytic residue at V50 (P = 0.1032);.;

MVP

0.068

MPC

0.23

ClinPred

0.032

GERP RS

-7.8

Varity_R

0.015

gMVP

0.12

Mutation Taster

=96/4

polymorphism

(source)

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

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NM_018174.6:c.148G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over