rs112734134

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001371596.2(MFSD8):​c.656T>C​(p.Phe219Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000948 in 1,613,540 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000055 ( 1 hom. )

Consequence

MFSD8
NM_001371596.2 missense

Scores

6
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 3.10

Publications

4 publications found
Variant links:
Genes affected
MFSD8 (HGNC:28486): (major facilitator superfamily domain containing 8) This gene encodes a ubiquitous integral membrane protein that contains a transporter domain and a major facilitator superfamily (MFS) domain. Other members of the major facilitator superfamily transport small solutes through chemiosmotic ion gradients. The substrate transported by this protein is unknown. The protein likely localizes to lysosomal membranes. Mutations in this gene are correlated with a variant form of late infantile-onset neuronal ceroid lipofuscinoses (vLINCL). [provided by RefSeq, Oct 2008]
MFSD8 Gene-Disease associations (from GenCC):
  • neuronal ceroid lipofuscinosis
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • neuronal ceroid lipofuscinosis 7
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, G2P
  • macular dystrophy with central cone involvement
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07163066).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001371596.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MFSD8
NM_001371596.2
MANE Select
c.656T>Cp.Phe219Ser
missense
Exon 6 of 12NP_001358525.1
MFSD8
NM_001371591.2
c.656T>Cp.Phe219Ser
missense
Exon 6 of 12NP_001358520.1
MFSD8
NM_001371592.2
c.662T>Cp.Phe221Ser
missense
Exon 6 of 12NP_001358521.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MFSD8
ENST00000641686.2
MANE Select
c.656T>Cp.Phe219Ser
missense
Exon 6 of 12ENSP00000493218.2
MFSD8
ENST00000296468.8
TSL:1
c.656T>Cp.Phe219Ser
missense
Exon 7 of 13ENSP00000296468.3
MFSD8
ENST00000945724.1
c.644T>Cp.Phe215Ser
missense
Exon 6 of 12ENSP00000615783.1

Frequencies

GnomAD3 genomes
AF:
0.000460
AC:
70
AN:
152186
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00157
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000955
AC:
24
AN:
251208
AF XY:
0.0000736
show subpopulations
Gnomad AFR exome
AF:
0.00123
Gnomad AMR exome
AF:
0.0000868
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:
0.0000554
AC:
81
AN:
1461236
Hom.:
1
Cov.:
30
AF XY:
0.0000523
AC XY:
38
AN XY:
726950
show subpopulations
African (AFR)
AF:
0.00182
AC:
61
AN:
33458
American (AMR)
AF:
0.000112
AC:
5
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26114
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39594
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86220
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53364
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5760
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111648
Other (OTH)
AF:
0.000166
AC:
10
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.000473
AC:
72
AN:
152304
Hom.:
0
Cov.:
31
AF XY:
0.000524
AC XY:
39
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.00166
AC:
69
AN:
41570
American (AMR)
AF:
0.000131
AC:
2
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.000127
Hom.:
0
Bravo
AF:
0.000586
ESP6500AA
AF:
0.00182
AC:
8
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000107
AC:
13
Asia WGS
AF:
0.000867
AC:
3
AN:
3474

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Inborn genetic diseases (1)
-
1
-
Late-infantile neuronal ceroid lipofuscinosis (1)
-
1
-
Neuronal ceroid lipofuscinosis 7 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.33
T
Eigen
Benign
-0.11
Eigen_PC
Benign
-0.070
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.072
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.8
L
PhyloP100
3.1
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.24
Sift
Uncertain
0.015
D
Sift4G
Uncertain
0.052
T
Polyphen
0.71
P
Vest4
0.56
MVP
0.60
MPC
0.23
ClinPred
0.051
T
GERP RS
4.3
PromoterAI
-0.011
Neutral
Varity_R
0.24
gMVP
0.64
Mutation Taster
=71/29
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs112734134; hg19: chr4-128861050; API