chr2-96192399-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_020151.4(STARD7):​c.813G>A​(p.Met271Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,636 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

STARD7
NM_020151.4 missense

Scores

8
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.09
Variant links:
Genes affected
STARD7 (HGNC:18063): (StAR related lipid transfer domain containing 7) Predicted to enable lipid binding activity. Predicted to act upstream of or within several processes, including establishment of skin barrier; mucociliary clearance; and myeloid dendritic cell activation. Predicted to be located in cytoplasm and extracellular region. Implicated in familial adult myoclonic epilepsy 2. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.889

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
STARD7NM_020151.4 linkuse as main transcriptc.813G>A p.Met271Ile missense_variant 6/8 ENST00000337288.10 NP_064536.2 Q9NQZ5
STARD7NM_001385622.1 linkuse as main transcriptc.510G>A p.Met170Ile missense_variant 6/8 NP_001372551.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
STARD7ENST00000337288.10 linkuse as main transcriptc.813G>A p.Met271Ile missense_variant 6/81 NM_020151.4 ENSP00000338030.5 Q9NQZ5
STARD7ENST00000462501.1 linkuse as main transcriptn.473G>A non_coding_transcript_exon_variant 5/72

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152076
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461560
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727086
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:
0.00
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.0000416

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 GeneticsOct 12, 2021The c.813G>A (p.M271I) alteration is located in exon 6 (coding exon 6) of the STARD7 gene. This alteration results from a G to A substitution at nucleotide position 813, causing the methionine (M) at amino acid position 271 to be replaced by an isoleucine (I). 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
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.25
T
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.012
T
MetaRNN
Pathogenic
0.89
D
MetaSVM
Benign
-0.98
T
MutationAssessor
Uncertain
2.8
M
PrimateAI
Uncertain
0.78
T
PROVEAN
Uncertain
-4.0
D
REVEL
Uncertain
0.44
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.017
D
Polyphen
0.96
D
Vest4
0.79
MutPred
0.84
Loss of disorder (P = 0.065);
MVP
0.48
MPC
1.6
ClinPred
0.99
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.76
gMVP
0.64

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1558734320; hg19: chr2-96858137; API