2-209680798-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001375505.1(MAP2):​c.425C>T​(p.Ala142Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,410 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: 0.0000027 ( 0 hom. )

Consequence

MAP2
NM_001375505.1 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.51
Variant links:
Genes affected
MAP2 (HGNC:6839): (microtubule associated protein 2) This gene encodes a protein that belongs to the microtubule-associated protein family. The proteins of this family are thought to be involved in microtubule assembly, which is an essential step in neurogenesis. The products of similar genes in rat and mouse are neuron-specific cytoskeletal proteins that are enriched in dentrites, implicating a role in determining and stabilizing dentritic shape during neuron development. A number of alternatively spliced variants encoding distinct isoforms have been described. [provided by RefSeq, Jan 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.35685375).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAP2NM_001375505.1 linkc.425C>T p.Ala142Val missense_variant 7/16 ENST00000682079.1 NP_001362434.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAP2ENST00000682079.1 linkc.425C>T p.Ala142Val missense_variant 7/16 NM_001375505.1 ENSP00000507035.1 P11137-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461410
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727016
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:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000370
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 06, 2024The c.425C>T (p.A142V) alteration is located in exon 6 (coding exon 3) of the MAP2 gene. This alteration results from a C to T substitution at nucleotide position 425, causing the alanine (A) at amino acid position 142 to be replaced by a valine (V). 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
0.50
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.0
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.43
.;T;.;T;.;.;T
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.89
D;D;.;D;D;D;D
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.36
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
M;M;M;.;M;M;.
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
0.25
N;N;N;D;N;N;D
REVEL
Benign
0.27
Sift
Uncertain
0.0030
D;D;D;D;D;D;D
Sift4G
Benign
0.38
T;D;T;D;T;D;D
Polyphen
1.0, 1.0, 0.99
.;D;D;D;D;D;.
Vest4
0.41
MVP
0.37
MPC
0.37
ClinPred
0.90
D
GERP RS
5.7
Varity_R
0.29
gMVP
0.27

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2054238739; hg19: chr2-210545522; API