2-96760986-A-C

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_020184.4(CNNM4):​c.-14A>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00108 in 1,095,000 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0056 ( 10 hom., cov: 31)
Exomes 𝑓: 0.00036 ( 5 hom. )

Consequence

CNNM4
NM_020184.4 5_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -0.341
Variant links:
Genes affected
CNNM4 (HGNC:105): (cyclin and CBS domain divalent metal cation transport mediator 4) This gene encodes a member of the ancient conserved domain containing protein family. Members of this protein family contain a cyclin box motif and have structural similarity to the cyclins. The encoded protein may play a role in metal ion transport. Mutations in this gene are associated with Jalili syndrome which consists of cone-rod dystrophy and amelogenesis imperfecta. [provided by RefSeq, Feb 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 2-96760986-A-C is Benign according to our data. Variant chr2-96760986-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 193424.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00565 (835/147852) while in subpopulation AFR AF= 0.0195 (798/40944). AF 95% confidence interval is 0.0184. There are 10 homozygotes in gnomad4. There are 392 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNNM4NM_020184.4 linkuse as main transcriptc.-14A>C 5_prime_UTR_variant 1/7 ENST00000377075.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNNM4ENST00000377075.3 linkuse as main transcriptc.-14A>C 5_prime_UTR_variant 1/71 NM_020184.4 P1Q6P4Q7-1

Frequencies

GnomAD3 genomes
AF:
0.00567
AC:
837
AN:
147744
Hom.:
10
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0196
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00188
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000452
Gnomad OTH
AF:
0.00294
GnomAD4 exome
AF:
0.000363
AC:
344
AN:
947148
Hom.:
5
Cov.:
29
AF XY:
0.000329
AC XY:
146
AN XY:
444208
show subpopulations
Gnomad4 AFR exome
AF:
0.0155
Gnomad4 AMR exome
AF:
0.000911
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:
0.00000479
Gnomad4 OTH exome
AF:
0.00125
GnomAD4 genome
AF:
0.00565
AC:
835
AN:
147852
Hom.:
10
Cov.:
31
AF XY:
0.00544
AC XY:
392
AN XY:
72084
show subpopulations
Gnomad4 AFR
AF:
0.0195
Gnomad4 AMR
AF:
0.00188
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000452
Gnomad4 OTH
AF:
0.00291
Alfa
AF:
0.000349
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)May 14, 2014- -
Jalili syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
15
DANN
Benign
0.86
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.0

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: rs545205153; hg19: chr2-97426723; API