5-55220399-G-C

Variant names:

• chr5-55220399-G-C
• NM_001190787.3:c.1125C>G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001190787.3(MCIDAS):​c.1125C>G​(p.Asn375Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000723 in 1,383,608 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: MCIDAS NM_001190787.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.509

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.017322332).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MCIDAS	NM_001190787.3	c.1125C>G	p.Asn375Lys	missense_variant	Exon 7 of 7	ENST00000513312.3	NP_001177716.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MCIDAS	ENST00000513312.3	c.1125C>G	p.Asn375Lys	missense_variant	Exon 7 of 7	1	NM_001190787.3	ENSP00000426359.1
MCIDAS	ENST00000513468.5	n.*589C>G		non_coding_transcript_exon_variant	Exon 7 of 7	5		ENSP00000422165.1
MCIDAS	ENST00000513468.5	n.*589C>G		3_prime_UTR_variant	Exon 7 of 7	5		ENSP00000422165.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.23e-7 AC: 1 AN: 1383608 Hom.: 0 Cov.: 30 AF XY: 0.00000146 AC XY: 1 AN XY: 682720

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: 0.0000126

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.61
CADD	Benign	7.2
DANN	Benign	0.95
DEOGEN2	Benign	0.012	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.095	N
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.0043	T
MetaRNN	Benign	0.017	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-0.49	N
REVEL	Benign	0.0060
Sift	Benign	0.12	T
Sift4G	Benign	0.57	T
Polyphen		0.033	B
Vest4		0.11
MutPred		0.26		Loss of catalytic residue at N375 (P = 0.0218);
MVP		0.030
ClinPred		0.049	T
GERP RS		-1.7
Varity_R		0.072
gMVP		0.29

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-54516227;