16-30025293-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_031478.6(TLCD3B):​c.715G>A​(p.Ala239Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,553,234 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

TLCD3B
NM_031478.6 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.38
Variant links:
Genes affected
TLCD3B (HGNC:25295): (TLC domain containing 3B) This gene encodes a transmembrane protein, which may be a likely target of peroxisome proliferator-activated receptor gamma (PPAR-gamma). The product of the orthologous gene in mouse is related to obesity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]
C16orf92 (HGNC:26346): (chromosome 16 open reading frame 92) Predicted to be involved in fusion of sperm to egg plasma membrane involved in single fertilization. Predicted to be located in plasma membrane. Predicted to be integral component of 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 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TLCD3BNM_031478.6 linkuse as main transcriptc.715G>A p.Ala239Thr missense_variant 5/5 ENST00000380495.9 NP_113666.2 Q71RH2-1F1T0F5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TLCD3BENST00000380495.9 linkuse as main transcriptc.715G>A p.Ala239Thr missense_variant 5/51 NM_031478.6 ENSP00000369863.4 Q71RH2-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
33
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
GnomAD3 exomes
AF:
0.00000636
AC:
1
AN:
157196
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
84110
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000165
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
24
AN:
1401064
Hom.:
0
Cov.:
31
AF XY:
0.0000217
AC XY:
15
AN XY:
691980
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000204
Gnomad4 OTH exome
AF:
0.0000345
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74338
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000175
AC:
2

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 GeneticsOct 19, 2024The c.715G>A (p.A239T) alteration is located in exon 5 (coding exon 5) of the FAM57B gene. This alteration results from a G to A substitution at nucleotide position 715, causing the alanine (A) at amino acid position 239 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
Benign
0.12
BayesDel_addAF
Uncertain
0.076
D
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
.;T
Eigen
Benign
0.063
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Pathogenic
0.34
D
MetaRNN
Uncertain
0.43
T;T
MetaSVM
Uncertain
-0.096
T
MutationAssessor
Uncertain
2.0
.;M
PrimateAI
Pathogenic
0.90
D
PROVEAN
Uncertain
-2.8
D;D
REVEL
Uncertain
0.42
Sift
Benign
0.12
T;D
Sift4G
Uncertain
0.031
D;D
Polyphen
0.14
.;B
Vest4
0.51
MutPred
0.59
.;Gain of glycosylation at A239 (P = 0.0645);
MVP
0.73
MPC
1.2
ClinPred
0.80
D
GERP RS
4.8
Varity_R
0.39
gMVP
0.43

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: rs756547948; hg19: chr16-30036614; API