chr6-31148433-G-T

Variant names:

• chr6-31148433-G-T
• rs130071
• NM_001105564.2:c.1552C>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001105564.2(CCHCR1):​c.1552C>A​(p.Leu518Met) variant causes a missense 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. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L518V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CCHCR1 NM_001105564.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.233
• 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: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3131152).

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.1552C>A	p.Leu518Met	missense	Exon 10 of 18	NP_001099034.1	Q8TD31-2
	CCHCR1	NM_001394641.1		c.1579C>A	p.Leu527Met	missense	Exon 10 of 18	NP_001381570.1
	CCHCR1	NM_001105563.3		c.1444C>A	p.Leu482Met	missense	Exon 10 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.1552C>A	p.Leu518Met	missense	Exon 10 of 18	ENSP00000379566.3	Q8TD31-2
	CCHCR1	ENST00000451521.6	TSL:1	c.1444C>A	p.Leu482Met	missense	Exon 10 of 18	ENSP00000401039.2	Q8TD31-3
	CCHCR1	ENST00000376266.9	TSL:1	c.1285C>A	p.Leu429Met	missense	Exon 10 of 18	ENSP00000365442.5	Q8TD31-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	14
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0076	T
Eigen	Benign	0.14
Eigen_PC	Benign	0.095
FATHMM_MKL	Benign	0.68	D
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.0083	T
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L
PhyloP100		-0.23
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.59	N
REVEL	Benign	0.14
Sift	Uncertain	0.023	D
Sift4G	Benign	0.11	T
Polyphen		0.80	P
Vest4		0.28
MutPred		0.76		Gain of MoRF binding (P = 0.0691)
MVP		0.25
MPC		0.66
ClinPred		0.43	T
GERP RS		3.3
Varity_R		0.060
gMVP		0.14
Mutation Taster		=94/6	polymorphism

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

Other links and lift over

dbSNP: rs130071; hg19: chr6-31116210;