14-70375717-G-A

Variant summary

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

The NM_018373.3(SYNJ2BP):​c.256C>T​(p.Arg86Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,613,986 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

SYNJ2BP
NM_018373.3 missense

Scores

8
5
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.05

Publications

1 publications found
Variant links:
Genes affected
SYNJ2BP (HGNC:18955): (synaptojanin 2 binding protein) Predicted to enable type II activin receptor binding activity. Involved in several processes, including negative regulation of endothelial cell migration; negative regulation of sprouting angiogenesis; and regulation of signal transduction. Located in mitochondrion. Is integral component of mitochondrial outer membrane. [provided by Alliance of Genome Resources, Apr 2022]
SYNJ2BP-COX16 (HGNC:48350): (SYNJ2BP-COX16 readthrough) This locus represents naturally occurring read-through transcription between the neighboring SYNJ2BP (synaptojanin 2 binding protein) and COX16 (COX16 cytochrome c oxidase assembly homolog (S. cerevisiae)) genes on chromosome 14. The read-through transcript produces a fusion protein that shares sequence identity with each individual gene product. Alternate splicing results in multiple transcript variants that encode different isoforms. [provided by RefSeq, Feb 2011]
COX16 (HGNC:20213): (cytochrome c oxidase assembly factor COX16) Involved in mitochondrial cytochrome c oxidase assembly. Is integral component of mitochondrial inner membrane. [provided by Alliance of Genome Resources, Apr 2022]
COX16 Gene-Disease associations (from GenCC):
  • mitochondrial complex IV deficiency, nuclear type 22
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018373.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SYNJ2BP
NM_018373.3
MANE Select
c.256C>Tp.Arg86Cys
missense
Exon 3 of 4NP_060843.2P57105
SYNJ2BP-COX16
NM_001202547.2
c.256C>Tp.Arg86Cys
missense
Exon 3 of 6NP_001189476.1
SYNJ2BP-COX16
NM_001202548.2
c.256C>Tp.Arg86Cys
missense
Exon 3 of 6NP_001189477.1A0A087WYV9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SYNJ2BP
ENST00000256366.6
TSL:1 MANE Select
c.256C>Tp.Arg86Cys
missense
Exon 3 of 4ENSP00000256366.4P57105
SYNJ2BP-COX16
ENST00000621525.4
TSL:2
c.256C>Tp.Arg86Cys
missense
Exon 3 of 6ENSP00000482133.1A0A087WYV9
SYNJ2BP
ENST00000554216.1
TSL:1
n.217C>T
non_coding_transcript_exon
Exon 2 of 3

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000796
AC:
2
AN:
251240
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461796
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
727190
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33472
American (AMR)
AF:
0.0000224
AC:
1
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111972
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.0000340

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.79
BayesDel_addAF
Uncertain
0.16
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.11
T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Benign
0.74
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.051
D
MetaRNN
Uncertain
0.70
D
MetaSVM
Benign
-0.61
T
MutationAssessor
Pathogenic
2.9
M
PhyloP100
3.1
PROVEAN
Pathogenic
-5.2
D
REVEL
Uncertain
0.32
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.54
MVP
0.59
MPC
0.97
ClinPred
0.99
D
GERP RS
5.6
Varity_R
0.71
gMVP
0.73
Mutation Taster
=59/41
polymorphism

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

Other links and lift over

dbSNP: rs201847524; hg19: chr14-70842434; COSMIC: COSV56445361; API