15-40955493-C-T

Variant names:

• chr15-40955493-C-T
• rs750500142
• NM_024111.6:c.388C>T

Variant summary

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

The NM_024111.6(CHAC1):​c.388C>T​(p.Pro130Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000656 in 152,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: CHAC1 NM_024111.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.90
• Publications: 0 publications found

Genes affected

CHAC1 (HGNC:28680): (ChaC glutathione specific gamma-glutamylcyclotransferase 1) This gene encodes a member of the gamma-glutamylcyclotransferase family of proteins. The encoded protein has been shown to promote neuronal differentiation by deglycination of the Notch receptor, which prevents receptor maturation and inhibits Notch signaling. This protein may also play a role in the unfolded protein response, and in regulation of glutathione levels and oxidative balance in the cell. Elevated expression of this gene may indicate increased risk of cancer recurrence among breast and ovarian cancer patients. [provided by RefSeq, Sep 2016]

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=0.37755638).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024111.6. 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
	CHAC1	NM_024111.6	MANE Select	c.388C>T	p.Pro130Ser	missense	Exon 3 of 3	NP_077016.3	Q9BUX1-1
	CHAC1	NM_001142776.4		c.310-57C>T		intron	N/A	NP_001136248.2	Q9BUX1-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHAC1	ENST00000617768.5	TSL:1 MANE Select	c.388C>T	p.Pro130Ser	missense	Exon 3 of 3	ENSP00000484644.2	Q9BUX1-1
	CHAC1	ENST00000444189.7	TSL:1	c.310-57C>T		intron	N/A	ENSP00000395466.3	Q9BUX1-2
	CHAC1	ENST00000487220.1	TSL:3	c.-168C>T		5_prime_UTR	Exon 2 of 2	ENSP00000452707.1	H0YK90

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152208 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251438 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000656 AC: 1 AN: 152326 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74488

African (AFR) AF: 0.00 AC: 0 AN: 41580

American (AMR) AF: 0.00 AC: 0 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.30
CADD	Pathogenic	26
DANN	Uncertain	1.0
Eigen	Uncertain	0.30
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.046	D
MetaRNN	Benign	0.38	T
MetaSVM	Benign	-0.89	T
PhyloP100		4.9
PrimateAI	Uncertain	0.62	T
REVEL	Benign	0.27
Sift4G	Benign	0.11	T
Vest4		0.42
MutPred		0.49		Loss of glycosylation at T169 (P = 0.0508)
MVP		0.72
MPC		1.5
ClinPred		0.88	D
GERP RS		6.0
Varity_R		0.45

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs750500142; hg19: chr15-41247691;