chr6-46625421-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016593.5(CYP39A1):​c.928G>A​(p.Ala310Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000689 in 1,452,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CYP39A1
NM_016593.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.633
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18052295).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP39A1NM_016593.5 linkuse as main transcriptc.928G>A p.Ala310Thr missense_variant 7/12 ENST00000275016.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP39A1ENST00000275016.3 linkuse as main transcriptc.928G>A p.Ala310Thr missense_variant 7/121 NM_016593.5 P1
CYP39A1ENST00000619708.4 linkuse as main transcriptc.412G>A p.Ala138Thr missense_variant 6/111
CYP39A1ENST00000480804.1 linkuse as main transcriptn.239G>A non_coding_transcript_exon_variant 3/55

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.89e-7
AC:
1
AN:
1452392
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
722508
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.04e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 17, 2022The c.928G>A (p.A310T) alteration is located in exon 7 (coding exon 7) of the CYP39A1 gene. This alteration results from a G to A substitution at nucleotide position 928, causing the alanine (A) at amino acid position 310 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
0.0076
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
15
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0053
.;T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.66
D
LIST_S2
Benign
0.81
T;T
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.18
T;T
MetaSVM
Benign
-0.65
T
MutationAssessor
Benign
1.9
.;M
MutationTaster
Benign
0.96
D
PrimateAI
Benign
0.34
T
PROVEAN
Benign
0.28
.;N
REVEL
Benign
0.26
Sift
Benign
0.28
.;T
Sift4G
Benign
0.30
T;T
Polyphen
0.085
.;B
Vest4
0.13
MutPred
0.35
.;Gain of methylation at K314 (P = 0.0657);
MVP
0.78
MPC
0.043
ClinPred
0.29
T
GERP RS
4.3
Varity_R
0.040
gMVP
0.27

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-46593158; API