3-98580184-A-ATG
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_000097.7(CPOX):c.*498_*499insCA variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00007 in 986,390 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000061 ( 0 hom. )
Consequence
CPOX
NM_000097.7 3_prime_UTR
NM_000097.7 3_prime_UTR
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 0.638
Genes affected
CPOX (HGNC:2321): (coproporphyrinogen oxidase) The protein encoded by this gene is the sixth enzyme of the heme biosynthetic pathway. The encoded enzyme is soluble and found in the intermembrane space of mitochondria. This enzyme catalyzes the stepwise oxidative decarboxylation of coproporphyrinogen III to protoporphyrinogen IX, a precursor of heme. Defects in this gene are a cause of hereditary coproporphyria (HCP).[provided by RefSeq, Oct 2009]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CPOX | NM_000097.7 | c.*498_*499insCA | 3_prime_UTR_variant | 7/7 | ENST00000647941.2 | NP_000088.3 | ||
CPOX | XM_005247125.5 | c.1173-1915_1173-1914insCA | intron_variant | XP_005247182.1 | ||||
CPOX | XR_001740025.3 | n.1280-1915_1280-1914insCA | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CPOX | ENST00000647941.2 | c.*498_*499insCA | 3_prime_UTR_variant | 7/7 | NM_000097.7 | ENSP00000497326 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152244Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.0000611 AC: 51AN: 834146Hom.: 0 Cov.: 23 AF XY: 0.0000519 AC XY: 20AN XY: 385530
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GnomAD4 genome AF: 0.000118 AC: 18AN: 152244Hom.: 0 Cov.: 33 AF XY: 0.0000941 AC XY: 7AN XY: 74380
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hereditary coproporphyria Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Computational scores
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Find out detailed SpliceAI scores and Pangolin per-transcript scores at