chr6-31154703-C-G

Variant names:

• chr6-31154703-C-G
• NM_001105564.2:c.594G>C
• CCHCR1 p.Arg198Arg

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001105564.2(CCHCR1):​c.594G>C​(p.Arg198Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R198R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CCHCR1 NM_001105564.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0270
• Publications: 0 publications found

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

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP7: Synonymous conserved (PhyloP=0.027 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001105564.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCHCR1	NM_001105564.2	MANE Select	c.594G>C	p.Arg198Arg	synonymous	Exon 4 of 18	NP_001099034.1	Q8TD31-2
	CCHCR1	NM_001394641.1		c.621G>C	p.Arg207Arg	synonymous	Exon 4 of 18	NP_001381570.1
	CCHCR1	NM_001105563.3		c.486G>C	p.Arg162Arg	synonymous	Exon 4 of 18	NP_001099033.1	Q8TD31-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCHCR1	ENST00000396268.8	TSL:1 MANE Select	c.594G>C	p.Arg198Arg	synonymous	Exon 4 of 18	ENSP00000379566.3	Q8TD31-2
	CCHCR1	ENST00000451521.6	TSL:1	c.486G>C	p.Arg162Arg	synonymous	Exon 4 of 18	ENSP00000401039.2	Q8TD31-3
	CCHCR1	ENST00000376266.9	TSL:1	c.327G>C	p.Arg109Arg	synonymous	Exon 4 of 18	ENSP00000365442.5	Q8TD31-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 39

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	6.8
DANN	Benign	0.71
PhyloP100		0.027
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.4

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr6-31122480;