chr12-22062440-T-TATC

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_018686.6(CMAS):​c.1114+7_1114+9dup variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00506 in 1,611,100 control chromosomes in the GnomAD database, including 382 homozygotes. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.027 ( 193 hom., cov: 31)
Exomes 𝑓: 0.0028 ( 189 hom. )

Consequence

CMAS
NM_018686.6 splice_region, intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.419
Variant links:
Genes affected
CMAS (HGNC:18290): (cytidine monophosphate N-acetylneuraminic acid synthetase) This gene encodes an enzyme that converts N-acetylneuraminic acid (NeuNAc) to cytidine 5'-monophosphate N-acetylneuraminic acid (CMP-NeuNAc). This process is important in the formation of sialylated glycoprotein and glycolipids. This modification plays a role in cell-cell communications and immune responses. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 12-22062440-T-TATC is Benign according to our data. Variant chr12-22062440-T-TATC is described in ClinVar as [Benign]. Clinvar id is 779520.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.091 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CMASNM_018686.6 linkuse as main transcriptc.1114+7_1114+9dup splice_region_variant, intron_variant ENST00000229329.7 NP_061156.1
CMASNR_135117.2 linkuse as main transcriptn.1028+7_1028+9dup splice_region_variant, intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CMASENST00000229329.7 linkuse as main transcriptc.1114+7_1114+9dup splice_region_variant, intron_variant 1 NM_018686.6 ENSP00000229329 P1Q8NFW8-1
CMASENST00000534981.5 linkuse as main transcriptc.*150+7_*150+9dup splice_region_variant, intron_variant, NMD_transcript_variant 1 ENSP00000446239 Q8NFW8-2
CMASENST00000535610.5 linkuse as main transcript downstream_gene_variant 5 ENSP00000439404
CMASENST00000537658.1 linkuse as main transcript downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0270
AC:
4104
AN:
151744
Hom.:
192
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0935
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0117
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000324
Gnomad OTH
AF:
0.0201
GnomAD3 exomes
AF:
0.00706
AC:
1753
AN:
248334
Hom.:
72
AF XY:
0.00518
AC XY:
696
AN XY:
134332
show subpopulations
Gnomad AFR exome
AF:
0.0946
Gnomad AMR exome
AF:
0.00486
Gnomad ASJ exome
AF:
0.000101
Gnomad EAS exome
AF:
0.0000550
Gnomad SAS exome
AF:
0.000100
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000301
Gnomad OTH exome
AF:
0.00395
GnomAD4 exome
AF:
0.00277
AC:
4043
AN:
1459238
Hom.:
189
Cov.:
33
AF XY:
0.00235
AC XY:
1706
AN XY:
725912
show subpopulations
Gnomad4 AFR exome
AF:
0.0956
Gnomad4 AMR exome
AF:
0.00520
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000197
Gnomad4 OTH exome
AF:
0.00642
GnomAD4 genome
AF:
0.0271
AC:
4112
AN:
151862
Hom.:
193
Cov.:
31
AF XY:
0.0261
AC XY:
1939
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0934
Gnomad4 AMR
AF:
0.0116
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000210
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000324
Gnomad4 OTH
AF:
0.0199
Alfa
AF:
0.00123
Hom.:
0
Bravo
AF:
0.0314
Asia WGS
AF:
0.00808
AC:
28
AN:
3478
EpiCase
AF:
0.000382
EpiControl
AF:
0.000415

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 16, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs140406732; hg19: chr12-22215374; API