NM_003838.5:c.70T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003838.5(FPGT):​c.70T>C​(p.Ser24Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,614,016 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

FPGT
NM_003838.5 missense

Scores

1
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.90

Publications

0 publications found
Variant links:
Genes affected
FPGT (HGNC:3825): (fucose-1-phosphate guanylyltransferase) L-fucose is a key sugar in glycoproteins and other complex carbohydrates since it may be involved in many of the functional roles of these macromolecules, such as in cell-cell recognition. The fucosyl donor for these fucosylated oligosaccharides is GDP-beta-L-fucose. There are two alternate pathways for the biosynthesis of GDP-fucose; the major pathway converts GDP-alpha-D-mannose to GDP-beta-L-fucose. The protein encoded by this gene participates in an alternate pathway that is present in certain mammalian tissues, such as liver and kidney, and appears to function as a salvage pathway to reutilize L-fucose arising from the turnover of glycoproteins and glycolipids. This pathway involves the phosphorylation of L-fucose to form beta-L-fucose-1-phosphate, and then condensation of the beta-L-fucose-1-phosphate with GTP by fucose-1-phosphate guanylyltransferase to form GDP-beta-L-fucose. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the neighboring downstream TNNI3 interacting kinase (TNNI3K) gene. [provided by RefSeq, Dec 2010]
FPGT-TNNI3K (HGNC:42952): (FPGT-TNNI3K readthrough) Enables protein C-terminus binding activity; protein kinase activity; and troponin I binding activity. Involved in protein phosphorylation and regulation of heart contraction. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]
LRRIQ3 (HGNC:28318): (leucine rich repeats and IQ motif containing 3)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25655746).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FPGTNM_003838.5 linkc.70T>C p.Ser24Pro missense_variant Exon 1 of 4 ENST00000370898.9 NP_003829.4 O14772A0A0S2Z5C6
LRRIQ3NM_001105659.2 linkc.-353A>G upstream_gene_variant ENST00000354431.9 NP_001099129.1 A6PVS8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FPGTENST00000370898.9 linkc.70T>C p.Ser24Pro missense_variant Exon 1 of 4 1 NM_003838.5 ENSP00000359935.4 A0A0S2Z5C6
FPGT-TNNI3KENST00000557284.7 linkc.70T>C p.Ser24Pro missense_variant Exon 1 of 27 2 ENSP00000450895.3 V9GXZ4
LRRIQ3ENST00000354431.9 linkc.-353A>G upstream_gene_variant 5 NM_001105659.2 ENSP00000346414.4 A6PVS8-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152126
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
250954
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461890
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000252
AC:
28
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.00000657
AC:
1
AN:
152126
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74308
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41424
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jan 15, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.70T>C (p.S24P) alteration is located in exon 1 (coding exon 1) of the FPGT gene. This alteration results from a T to C substitution at nucleotide position 70, causing the serine (S) at amino acid position 24 to be replaced by a proline (P). 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
0.59
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.030
CADD
Benign
17
DANN
Uncertain
1.0
Eigen
Benign
-0.020
Eigen_PC
Benign
0.023
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.80
T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.26
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.9
.;.;L;.;L;.;.;.;.;.
PhyloP100
1.9
PROVEAN
Benign
-1.8
.;.;N;N;N;.;N;N;N;N
REVEL
Benign
0.25
Sift
Benign
0.033
.;.;D;D;T;.;D;D;D;T
Sift4G
Benign
0.17
T;D;D;T;T;D;D;D;T;T
Vest4
0.60
MutPred
0.42
.;.;Loss of phosphorylation at S24 (P = 0.004);Loss of phosphorylation at S24 (P = 0.004);Loss of phosphorylation at S24 (P = 0.004);.;Loss of phosphorylation at S24 (P = 0.004);Loss of phosphorylation at S24 (P = 0.004);Loss of phosphorylation at S24 (P = 0.004);Loss of phosphorylation at S24 (P = 0.004);
MVP
0.71
MPC
0.026
ClinPred
0.67
D
GERP RS
3.5
PromoterAI
-0.055
Neutral
Varity_R
0.16
gMVP
0.62
Mutation Taster
=75/25
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: rs200584512; hg19: chr1-74664032; API