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GeneBe

2-190436796-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_017694.4(MFSD6):​c.767C>T​(p.Thr256Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,614,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

MFSD6
NM_017694.4 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.85
Variant links:
Genes affected
MFSD6 (HGNC:24711): (major facilitator superfamily domain containing 6) Predicted to enable MHC class I protein binding activity and MHC class I receptor activity. Predicted to be involved in antigen processing and presentation of exogenous peptide antigen via MHC class I. Located in membrane. [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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, MFSD6
BP4
Computational evidence support a benign effect (MetaRNN=0.15009147).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MFSD6NM_017694.4 linkuse as main transcriptc.767C>T p.Thr256Ile missense_variant 3/8 ENST00000392328.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MFSD6ENST00000392328.6 linkuse as main transcriptc.767C>T p.Thr256Ile missense_variant 3/82 NM_017694.4 P1
MFSD6ENST00000281416.11 linkuse as main transcriptc.767C>T p.Thr256Ile missense_variant 1/61 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152168
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251464
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135898
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461884
Hom.:
0
Cov.:
34
AF XY:
0.0000234
AC XY:
17
AN XY:
727240
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:
0.0000216
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

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 GeneticsJun 30, 2022The c.767C>T (p.T256I) alteration is located in exon 3 (coding exon 1) of the MFSD6 gene. This alteration results from a C to T substitution at nucleotide position 767, causing the threonine (T) at amino acid position 256 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
Benign
0.12
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.048
T;T
Eigen
Benign
-0.23
Eigen_PC
Benign
-0.086
FATHMM_MKL
Uncertain
0.93
D
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.15
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.0
M;M
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.34
N;N
REVEL
Benign
0.032
Sift
Benign
0.10
T;T
Sift4G
Benign
0.21
T;T
Polyphen
0.022
B;B
Vest4
0.48
MutPred
0.40
Loss of glycosylation at T256 (P = 0.019);Loss of glycosylation at T256 (P = 0.019);
MVP
0.23
MPC
0.43
ClinPred
0.17
T
GERP RS
4.2
Varity_R
0.033
gMVP
0.58

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: rs1206057963; hg19: chr2-191301522; API