NM_016593.5:c.177+8G>T

Variant names:

• chr6-46652398-C-A
• rs9369628
• NM_016593.5:c.177+8G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016593.5(CYP39A1):​c.177+8G>T variant causes a splice region, intron 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. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CYP39A1 NM_016593.5 splice_region, intron
• Scores: Splicing: ADA: 0.0001010
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0550
• Publications: 6 publications found

Genes affected

CYP39A1 (HGNC:17449): (cytochrome P450 family 39 subfamily A member 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This endoplasmic reticulum protein is involved in the conversion of cholesterol to bile acids. Its substrates include the oxysterols 25-hydroxycholesterol, 27-hydroxycholesterol and 24-hydroxycholesterol. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016593.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP39A1	NM_016593.5	MANE Select	c.177+8G>T		splice_region intron	N/A	NP_057677.2
	CYP39A1	NM_001278738.2		c.177+8G>T		splice_region intron	N/A	NP_001265667.1
	CYP39A1	NM_001278739.2		c.-165+8G>T		splice_region intron	N/A	NP_001265668.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP39A1	ENST00000275016.3	TSL:1 MANE Select	c.177+8G>T		splice_region intron	N/A	ENSP00000275016.2
	CYP39A1	ENST00000619708.4	TSL:1	c.-165+8G>T		splice_region intron	N/A	ENSP00000477769.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	5.1
DANN	Benign	0.71
PhyloP100		-0.055
PromoterAI		0.035	Neutral

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00010
dbscSNV1_RF	Benign	0.0
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: rs9369628; hg19: chr6-46620135;