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rs112793062

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_022132.5(MCCC2):c.969T>C(p.Ala323=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000416 in 1,614,176 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0021 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00024 ( 7 hom. )

Consequence

MCCC2
NM_022132.5 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -2.49
Variant links:
Genes affected
MCCC2 (HGNC:6937): (methylcrotonyl-CoA carboxylase subunit 2) This gene encodes the small subunit of 3-methylcrotonyl-CoA carboxylase. This enzyme functions as a heterodimer and catalyzes the carboxylation of 3-methylcrotonyl-CoA to form 3-methylglutaconyl-CoA. Mutations in this gene are associated with 3-Methylcrotonylglycinuria, an autosomal recessive disorder of leucine catabolism. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, May 2018]

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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=-0.88).
BP6
Variant 5-71635216-T-C is Benign according to our data. Variant chr5-71635216-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 384260.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.49 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCCC2NM_022132.5 linkuse as main transcriptc.969T>C p.Ala323= synonymous_variant 10/17 ENST00000340941.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCCC2ENST00000340941.11 linkuse as main transcriptc.969T>C p.Ala323= synonymous_variant 10/171 NM_022132.5 P1Q9HCC0-1

Frequencies

GnomAD3 genomes
AF:
0.00210
AC:
320
AN:
152244
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00661
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00229
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:
0.0000588
Gnomad OTH
AF:
0.00334
GnomAD3 exomes
AF:
0.000509
AC:
128
AN:
251452
Hom.:
0
AF XY:
0.000361
AC XY:
49
AN XY:
135900
show subpopulations
Gnomad AFR exome
AF:
0.00658
Gnomad AMR exome
AF:
0.000520
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000240
AC:
351
AN:
1461814
Hom.:
7
Cov.:
33
AF XY:
0.000220
AC XY:
160
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00747
Gnomad4 AMR exome
AF:
0.000626
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.000894
GnomAD4 genome
AF:
0.00210
AC:
320
AN:
152362
Hom.:
1
Cov.:
33
AF XY:
0.00192
AC XY:
143
AN XY:
74510
show subpopulations
Gnomad4 AFR
AF:
0.00659
Gnomad4 AMR
AF:
0.00229
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.000834
Hom.:
0
Bravo
AF:
0.00249
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxOct 27, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
3-methylcrotonyl-CoA carboxylase 2 deficiency Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 22, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
Cadd
Benign
3.0
Dann
Benign
0.41
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs112793062; hg19: chr5-70931043; API