2-96195422-G-A

Variant summary

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

The NM_020151.4(STARD7):​c.418C>T​(p.Arg140Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000546 in 1,611,942 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R140P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000053 ( 1 hom. )

Consequence

STARD7
NM_020151.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.63
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=0.15146196).
BS2
High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
STARD7NM_020151.4 linkuse as main transcriptc.418C>T p.Arg140Cys missense_variant 2/8 ENST00000337288.10 NP_064536.2 Q9NQZ5
STARD7NM_001385622.1 linkuse as main transcriptc.115C>T p.Arg39Cys missense_variant 2/8 NP_001372551.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
STARD7ENST00000337288.10 linkuse as main transcriptc.418C>T p.Arg140Cys missense_variant 2/81 NM_020151.4 ENSP00000338030.5 Q9NQZ5
STARD7ENST00000443962.1 linkuse as main transcriptc.115C>T p.Arg39Cys missense_variant 2/55 ENSP00000409410.1 C9JTD3
STARD7ENST00000462501.1 linkuse as main transcriptn.93C>T non_coding_transcript_exon_variant 1/72
STARD7ENST00000488084.1 linkuse as main transcriptn.165C>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152150
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000445
AC:
11
AN:
247424
Hom.:
0
AF XY:
0.0000599
AC XY:
8
AN XY:
133654
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000668
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000537
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.0000534
AC:
78
AN:
1459792
Hom.:
1
Cov.:
32
AF XY:
0.0000675
AC XY:
49
AN XY:
725930
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000467
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000522
Gnomad4 OTH exome
AF:
0.000133
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152150
Hom.:
0
Cov.:
31
AF XY:
0.0000673
AC XY:
5
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000141
Hom.:
0
Bravo
AF:
0.000106
ExAC
AF:
0.0000577
AC:
7

ClinVar

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

Submissions by phenotype

Epilepsy, familial adult myoclonic, 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingNew York Genome CenterSep 26, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.43
CADD
Pathogenic
26
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0089
T;T
Eigen
Benign
-0.10
Eigen_PC
Benign
-0.0069
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.42
T;T
M_CAP
Benign
0.0027
T
MetaRNN
Benign
0.15
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;.
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.36
N;N
REVEL
Benign
0.096
Sift
Uncertain
0.021
D;D
Sift4G
Benign
0.071
T;.
Polyphen
0.73
P;.
Vest4
0.14
MVP
0.082
MPC
0.84
ClinPred
0.052
T
GERP RS
5.6
Varity_R
0.084
gMVP
0.39

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: rs181733184; hg19: chr2-96861160; COSMIC: COSV61525230; COSMIC: COSV61525230; API