chr18-36187693-G-GGGCA

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_017947.4(MOCOS):​c.142+16_142+19dup variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00131 in 1,265,070 control chromosomes in the GnomAD database, including 34 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 3 hom., cov: 33)
Exomes 𝑓: 0.0013 ( 31 hom. )

Consequence

MOCOS
NM_017947.4 intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.107
Variant links:
Genes affected
MOCOS (HGNC:18234): (molybdenum cofactor sulfurase) This gene encodes an enzyme that sulfurates the molybdenum cofactor which is required for activation of the xanthine dehydrogenase (XDH) and aldehyde oxidase (AO) enzymes. XDH catalyzes the conversion of hypoxanthine to uric acid via xanthine, as well as the conversion of allopurinol to oxypurinol, and pyrazinamide to 5-hydroxy pyrazinamide. Mutations in this gene cause the metabolic disorder classical xanthinuria type II which is characterized by the loss of XDH/XO and AO enzyme activity, decreased levels of uric acid in the urine, increased levels of xanthine and hypoxanthine in the serum and urine, formation of xanthine stones in the urinary tract, and myositis due to tissue deposition of xanthine. [provided by RefSeq, Apr 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6
Variant 18-36187693-G-GGGCA is Benign according to our data. Variant chr18-36187693-G-GGGCA is described in ClinVar as [Likely_benign]. Clinvar id is 1589614.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00136 (207/152330) while in subpopulation EAS AF= 0.024 (124/5168). AF 95% confidence interval is 0.0206. There are 3 homozygotes in gnomad4. There are 120 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MOCOSNM_017947.4 linkuse as main transcriptc.142+16_142+19dup intron_variant ENST00000261326.6 NP_060417.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MOCOSENST00000261326.6 linkuse as main transcriptc.142+16_142+19dup intron_variant 1 NM_017947.4 ENSP00000261326 P1

Frequencies

GnomAD3 genomes
AF:
0.00134
AC:
204
AN:
152218
Hom.:
3
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.0239
Gnomad SAS
AF:
0.00186
Gnomad FIN
AF:
0.00433
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00209
AC:
84
AN:
40170
Hom.:
1
AF XY:
0.00187
AC XY:
42
AN XY:
22438
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00472
Gnomad EAS exome
AF:
0.0223
Gnomad SAS exome
AF:
0.00115
Gnomad FIN exome
AF:
0.00220
Gnomad NFE exome
AF:
0.000154
Gnomad OTH exome
AF:
0.00135
GnomAD4 exome
AF:
0.00130
AC:
1451
AN:
1112740
Hom.:
31
Cov.:
33
AF XY:
0.00131
AC XY:
693
AN XY:
529304
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00224
Gnomad4 EAS exome
AF:
0.0403
Gnomad4 SAS exome
AF:
0.00112
Gnomad4 FIN exome
AF:
0.00271
Gnomad4 NFE exome
AF:
0.000103
Gnomad4 OTH exome
AF:
0.00156
GnomAD4 genome
AF:
0.00136
AC:
207
AN:
152330
Hom.:
3
Cov.:
33
AF XY:
0.00161
AC XY:
120
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.0240
Gnomad4 SAS
AF:
0.00228
Gnomad4 FIN
AF:
0.00433
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.000324
Hom.:
0
Bravo
AF:
0.00110
Asia WGS
AF:
0.0140
AC:
49
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Xanthinuria type II Benign:2
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 26, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 08, 2024- -

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: rs780090086; hg19: chr18-33767656; API