6-31144891-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Moderate BP6_Moderate

The NM_001105564.2(CCHCR1):c.2059G>C(p.Gly687Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,288 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: CCHCR1 NM_001105564.2 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.18

Genes affected

CCHCR1 (HGNC:13930): (coiled-coil alpha-helical rod protein 1) This gene encodes a protein with five coiled-coil alpha-helical rod domains that is thought to act as a regulator of mRNA metabolism through its interaction with mRNA-decapping protein 4. It localizes to P-bodies, the site of mRNA metabolism, with an N-terminus that is required for this subcellular localization, suggesting it is a P-body component. Naturally occurring mutations in this gene are associated with psoriasis. [provided by RefSeq, May 2017]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1518004).
• BP6: Variant 6-31144891-C-G is Benign according to our data. Variant chr6-31144891-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 2513471.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCHCR1	NM_001105564.2	c.2059G>C	p.Gly687Arg	missense_variant	14/18	ENST00000396268.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCHCR1	ENST00000396268.8	c.2059G>C	p.Gly687Arg	missense_variant	14/18	1	NM_001105564.2	A2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.00000797 AC: 2 AN: 250956 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135676

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000579

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461288 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726954

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000671

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 05, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.59
Cadd	Benign	19
Dann	Benign	0.93
Eigen	Benign	-0.41
Eigen_PC	Benign	-0.57
FATHMM_MKL	Benign	0.61	D
M_CAP	Benign	0.0072	T
MetaRNN	Benign	0.15	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N;N;N
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-0.56	N;N;N;N
REVEL	Benign	0.090
Sift	Benign	0.094	T;T;T;T
Sift4G	Benign	0.17	T;T;T;T
Polyphen		1.0	D;D;.;.
Vest4		0.20
MutPred		0.48		.;Gain of MoRF binding (P = 0.0214);.;.;
MVP		0.24
MPC		0.61
ClinPred		0.11	T
GERP RS		2.3
Varity_R		0.069
gMVP		0.15

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		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

Other links and lift over

dbSNP: rs756252094; hg19: chr6-31112668;