2-96186885-T-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020151.4(STARD7):ā€‹c.958A>Gā€‹(p.Met320Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,613,322 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.000020 ( 0 hom. )

Consequence

STARD7
NM_020151.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.69
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14994976).
BS2
High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
STARD7NM_020151.4 linkuse as main transcriptc.958A>G p.Met320Val missense_variant 8/8 ENST00000337288.10 NP_064536.2 Q9NQZ5
STARD7NM_001385622.1 linkuse as main transcriptc.655A>G p.Met219Val missense_variant 8/8 NP_001372551.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
STARD7ENST00000337288.10 linkuse as main transcriptc.958A>G p.Met320Val missense_variant 8/81 NM_020151.4 ENSP00000338030.5 Q9NQZ5
STARD7ENST00000462501.1 linkuse as main transcriptn.618A>G non_coding_transcript_exon_variant 7/72
STARD7ENST00000479456.1 linkuse as main transcriptn.931A>G non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152214
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
249774
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135034
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000267
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461108
Hom.:
0
Cov.:
31
AF XY:
0.0000261
AC XY:
19
AN XY:
726834
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152214
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 20, 2024The c.958A>G (p.M320V) alteration is located in exon 8 (coding exon 8) of the STARD7 gene. This alteration results from a A to G substitution at nucleotide position 958, causing the methionine (M) at amino acid position 320 to be replaced by a valine (V). 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
0.077
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
20
DANN
Benign
0.93
DEOGEN2
Benign
0.014
T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.070
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
-0.34
N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-1.0
N
REVEL
Benign
0.097
Sift
Benign
0.36
T
Sift4G
Benign
0.31
T
Polyphen
0.0070
B
Vest4
0.11
MutPred
0.39
Loss of catalytic residue at M320 (P = 0.0215);
MVP
0.32
MPC
0.59
ClinPred
0.23
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.070
gMVP
0.23

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: rs773518469; hg19: chr2-96852623; COSMIC: COSV61525858; API