chr7-25118975-CTAT-C

Position:

• chr7-25118975-CTAT-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_Moderate BS1 BS2

The NM_018947.6(CYCS):​c.*4723_*4725del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00766 in 152,212 control chromosomes in the GnomAD database, including 15 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: 𝑓 0.0077 (15 hom., cov: 32)
• Consequence: CYCS NM_018947.6 3_prime_UTR
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.758

Genes affected

CYCS (HGNC:19986): (cytochrome c, somatic) This gene encodes a small heme protein that functions as a central component of the electron transport chain in mitochondria. The encoded protein associates with the inner membrane of the mitochondrion where it accepts electrons from cytochrome b and transfers them to the cytochrome oxidase complex. This protein is also involved in initiation of apoptosis. Mutations in this gene are associated with autosomal dominant nonsyndromic thrombocytopenia. Numerous processed pseudogenes of this gene are found throughout the human genome.[provided by RefSeq, Jul 2010]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP6: Variant 7-25118975-CTAT-C is Benign according to our data. Variant chr7-25118975-CTAT-C is described in ClinVar as [Likely_benign]. Clinvar id is 359867.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00766 (1166/152212) while in subpopulation AFR AF= 0.0266 (1104/41510). AF 95% confidence interval is 0.0253. There are 15 homozygotes in gnomad4. There are 561 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1166 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CYCS	NM_018947.6	c.*4723_*4725del		3_prime_UTR_variant	3/3	ENST00000305786.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CYCS	ENST00000305786.7	c.*4723_*4725del		3_prime_UTR_variant	3/3	1	NM_018947.6	P1

Frequencies

GnomAD3 genomes AF: 0.00764 AC: 1162 AN: 152094 Hom.: 15 Cov.: 32

Gnomad AFR AF: 0.0266

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00262

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: 0.000162

Gnomad OTH AF: 0.00574

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.00766 AC: 1166 AN: 152212 Hom.: 15 Cov.: 32 AF XY: 0.00754 AC XY: 561 AN XY: 74428

Gnomad4 AFR AF: 0.0266

Gnomad4 AMR AF: 0.00255

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000162

Gnomad4 OTH AF: 0.00568

Alfa AF: 0.00454 Hom.: 2

Bravo AF: 0.00887

Asia WGS AF: 0.00318 AC: 11 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Thrombocytopenia Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs113653188; hg19: chr7-25158594;