NM_000103.4:c.790C>G

Variant names:

• chr15-51215771-G-C
• rs700519
• NM_000103.4:c.790C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000103.4(CYP19A1):​c.790C>G​(p.Arg264Gly) 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. R264C) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CYP19A1 NM_000103.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.17
• Publications: 0 publications found

Genes affected

CYP19A1 (HGNC:2594): (cytochrome P450 family 19 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 protein localizes to the endoplasmic reticulum and catalyzes the last steps of estrogen biosynthesis. Mutations in this gene can result in either increased or decreased aromatase activity; the associated phenotypes suggest that estrogen functions both as a sex steroid hormone and in growth or differentiation. Alternative promoter use and alternative splicing results in multiple transcript variants that have different tissue specificities. [provided by RefSeq, Dec 2016]

MIR4713HG (HGNC:53124): (MIR4713 host gene)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18662736).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000103.4. 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
	CYP19A1	NM_000103.4	MANE Select	c.790C>G	p.Arg264Gly	missense	Exon 7 of 10	NP_000094.2
	CYP19A1	NM_001347248.1		c.790C>G	p.Arg264Gly	missense	Exon 7 of 10	NP_001334177.1
	CYP19A1	NM_001347249.2		c.790C>G	p.Arg264Gly	missense	Exon 7 of 10	NP_001334178.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP19A1	ENST00000396402.6	TSL:1 MANE Select	c.790C>G	p.Arg264Gly	missense	Exon 7 of 10	ENSP00000379683.1
	CYP19A1	ENST00000559878.5	TSL:1	c.790C>G	p.Arg264Gly	missense	Exon 6 of 9	ENSP00000453149.1
	CYP19A1	ENST00000439712.6	TSL:1	n.790C>G		non_coding_transcript_exon	Exon 8 of 10	ENSP00000390614.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.058	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.62	D
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.091
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.4	L
PhyloP100		2.2
PrimateAI	Benign	0.19	T
PROVEAN	Uncertain	-3.1	D
REVEL	Benign	0.12
Sift	Benign	0.089	T
Sift4G	Benign	0.061	T
Polyphen		0.0010	B
Vest4		0.18
MutPred		0.36		Loss of stability (P = 0.033)
MVP		0.76
MPC		0.18
ClinPred		0.58	D
GERP RS		4.4
Varity_R		0.15
gMVP		0.32

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: rs700519; hg19: chr15-51507968;