Genetic Variant MAP1S:p.Tyr99Cys (chr19-17724201-A-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_018174.6(MAP1S):c.296A>G(p.Tyr99Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,278 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MAP1S
NM_018174.6 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.61

Publications

1 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: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.034011364).

BP6

Variant 19-17724201-A-G is Benign according to our data. Variant chr19-17724201-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3542657.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAP1S	NM_018174.6 link	c.296A>G	p.Tyr99Cys	missense_variant	Exon 3 of 7	ENST00000324096.9	NP_060644.4	Q66K74-1
MAP1S	NM_001308363.2 link	c.218A>G	p.Tyr73Cys	missense_variant	Exon 3 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.296A>G	p.Tyr99Cys	missense_variant	Exon 3 of 7	1	NM_018174.6	ENSP00000325313.3		Q66K74-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251114

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000205

AC:

AN:

1461278

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726968

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.0000224

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53250

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111632

Other (OTH)

AF:

0.00

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Aug 27, 2024

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.045

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.62

CADD

Benign

(source)

DANN

Benign

0.10

DEOGEN2

Benign

0.0078

T;T;.;.;.

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.050

LIST_S2

Benign

0.38

T;T;T;T;T

M_CAP

Benign

0.0064

MetaRNN

Benign

0.034

T;T;T;T;T

MetaSVM

Benign

-0.93

MutationAssessor

Benign

-2.2

.;N;.;.;.

PhyloP100

3.6

PrimateAI

Uncertain

0.67

PROVEAN

Benign

3.6

.;N;.;.;N

REVEL

Benign

0.065

Sift

Benign

0.99

.;T;.;.;T

Sift4G

Benign

1.0

T;T;T;T;T

Polyphen

0.0

.;B;.;.;.

Vest4

0.17, 0.17

MutPred

0.25

Loss of ubiquitination at K96 (P = 0.0615);Loss of ubiquitination at K96 (P = 0.0615);.;Loss of ubiquitination at K96 (P = 0.0615);.;

MVP

0.043

MPC

0.35

ClinPred

0.016

GERP RS

3.3

Varity_R

0.051

gMVP

0.47

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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19-17724201-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over