6-30741294-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_005803.4(FLOT1):​c.250G>A​(p.Ala84Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,460,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

FLOT1
NM_005803.4 missense

Scores

13
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.60
Variant links:
Genes affected
FLOT1 (HGNC:3757): (flotillin 1) This gene encodes an protein that localizes to the caveolae, which are small domains on the inner cell membranes. This protein plays a role in vesicle trafficking and cell morphology. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.913

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FLOT1NM_005803.4 linkuse as main transcriptc.250G>A p.Ala84Thr missense_variant 5/13 ENST00000376389.8 NP_005794.1 O75955-1Q5ST80

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FLOT1ENST00000376389.8 linkuse as main transcriptc.250G>A p.Ala84Thr missense_variant 5/131 NM_005803.4 ENSP00000365569.3 O75955-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000162
AC:
4
AN:
246594
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134426
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 SAS exome
AF:
0.0000329
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1460760
Hom.:
0
Cov.:
32
AF XY:
0.00000826
AC XY:
6
AN XY:
726700
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000255
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 12, 2024The c.250G>A (p.A84T) alteration is located in exon 5 (coding exon 4) of the FLOT1 gene. This alteration results from a G to A substitution at nucleotide position 250, causing the alanine (A) at amino acid position 84 to be replaced by a threonine (T). 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
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.95
D;D;D;D;D;D
Eigen
Pathogenic
0.95
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.91
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.7
H;.;.;.;.;.
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-3.7
D;D;D;D;D;D
REVEL
Pathogenic
0.84
Sift
Uncertain
0.0010
D;D;D;D;D;D
Sift4G
Uncertain
0.0050
D;.;.;D;.;.
Polyphen
1.0
D;.;.;.;.;.
Vest4
0.76
MutPred
0.68
Loss of helix (P = 0.1706);.;Loss of helix (P = 0.1706);Loss of helix (P = 0.1706);.;Loss of helix (P = 0.1706);
MVP
0.96
MPC
2.2
ClinPred
0.99
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.84
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs761767550; hg19: chr6-30709071; COSMIC: COSV52544574; COSMIC: COSV52544574; API