chr5-55220488-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001190787.3(MCIDAS):​c.1036G>A​(p.Gly346Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000145 in 1,383,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MCIDAS
NM_001190787.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.83
Variant links:
Genes affected
MCIDAS (HGNC:40050): (multiciliate differentiation and DNA synthesis associated cell cycle protein) This gene encodes a member of the geminin family of proteins. The encoded nuclear protein is required for the generation of multiciliated cells in respiratory epithelium. Mutations in this gene cause a rare mucociliary clearance disorder associated with recurring respiratory infections in human patients, known as reduced generation of multiple motile cilia (RGMC). [provided by RefSeq, Sep 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07527843).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCIDASNM_001190787.3 linkuse as main transcriptc.1036G>A p.Gly346Ser missense_variant 7/7 ENST00000513312.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCIDASENST00000513312.3 linkuse as main transcriptc.1036G>A p.Gly346Ser missense_variant 7/71 NM_001190787.3 P1
MCIDASENST00000513468.5 linkuse as main transcriptc.*500G>A 3_prime_UTR_variant, NMD_transcript_variant 7/75

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000145
AC:
2
AN:
1383730
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
682792
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:
0.00000185
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 14, 2024The c.1036G>A (p.G346S) alteration is located in exon 7 (coding exon 7) of the MCIDAS gene. This alteration results from a G to A substitution at nucleotide position 1036, causing the glycine (G) at amino acid position 346 to be replaced by a serine (S). 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
0.096
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.012
T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.39
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.72
T
M_CAP
Benign
0.0035
T
MetaRNN
Benign
0.075
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.93
N
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-0.76
N
REVEL
Benign
0.15
Sift
Benign
0.71
T
Sift4G
Benign
0.59
T
Polyphen
0.046
B
Vest4
0.32
MutPred
0.21
Gain of glycosylation at G346 (P = 0.0197);
MVP
0.055
ClinPred
0.56
D
GERP RS
3.9
Varity_R
0.061
gMVP
0.52

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: rs867677794; hg19: chr5-54516316; API