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GeneBe

4-155347809-T-C

Variant summary

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

The NM_001039580.2(MAP9):ā€‹c.1918A>Gā€‹(p.Arg640Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,457,412 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

MAP9
NM_001039580.2 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.06
Variant links:
Genes affected
MAP9 (HGNC:26118): (microtubule associated protein 9) ASAP is a microtubule-associated protein required for spindle function, mitotic progression, and cytokinesis (Saffin et al., 2005 [PubMed 16049101]).[supplied by OMIM, Mar 2008]
MAP9-AS1 (HGNC:56110): (MAP9 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAP9NM_001039580.2 linkuse as main transcriptc.1918A>G p.Arg640Gly missense_variant 14/14 ENST00000311277.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAP9ENST00000311277.9 linkuse as main transcriptc.1918A>G p.Arg640Gly missense_variant 14/141 NM_001039580.2 P1Q49MG5-1
MAP9-AS1ENST00000630664.2 linkuse as main transcriptn.209-6400T>C intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000406
AC:
1
AN:
246450
Hom.:
0
AF XY:
0.00000751
AC XY:
1
AN XY:
133150
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000898
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1457412
Hom.:
0
Cov.:
30
AF XY:
0.00000552
AC XY:
4
AN XY:
724702
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.01e-7
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000282
Hom.:
0
Asia WGS
AF:
0.00462
AC:
16
AN:
3478

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 GeneticsApr 18, 2023The c.1918A>G (p.R640G) alteration is located in exon 14 (coding exon 13) of the MAP9 gene. This alteration results from a A to G substitution at nucleotide position 1918, causing the arginine (R) at amino acid position 640 to be replaced by a glycine (G). 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
0.30
BayesDel_addAF
Benign
-0.087
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.034
T;.
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.77
T;T
M_CAP
Benign
0.021
T
MetaRNN
Uncertain
0.51
D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L;.
MutationTaster
Benign
0.89
N;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.7
N;N
REVEL
Benign
0.20
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.010
D;D
Polyphen
1.0
D;.
Vest4
0.54
MutPred
0.33
Loss of MoRF binding (P = 0.004);.;
MVP
0.46
MPC
0.30
ClinPred
0.86
D
GERP RS
4.4
Varity_R
0.26
gMVP
0.10

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: rs371189775; hg19: chr4-156268961; API