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GeneBe

17-28724833-T-G

Variant summary

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

The NM_138463.4(TLCD1):c.421A>C(p.Thr141Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000223 in 1,613,786 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

TLCD1
NM_138463.4 missense

Scores

2
12
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.29
Variant links:
Genes affected
TLCD1 (HGNC:25177): (TLC domain containing 1) Involved in several processes, including membrane assembly; phospholipid homeostasis; and regulation of membrane lipid distribution. Located in plasma 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 UniProt
TLCD1NM_138463.4 linkuse as main transcriptc.421A>C p.Thr141Pro missense_variant 4/4 ENST00000292090.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TLCD1ENST00000292090.8 linkuse as main transcriptc.421A>C p.Thr141Pro missense_variant 4/41 NM_138463.4 P1Q96CP7-1
TLCD1ENST00000394933.7 linkuse as main transcriptc.280A>C p.Thr94Pro missense_variant 4/42 Q96CP7-2
TLCD1ENST00000580518.1 linkuse as main transcriptc.208A>C p.Thr70Pro missense_variant 4/43
TLCD1ENST00000581236.1 linkuse as main transcriptc.19A>C p.Thr7Pro missense_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151960
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251384
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461826
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727218
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:
0.0000261
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151960
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74216
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000189

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 GeneticsNov 13, 2023The c.421A>C (p.T141P) alteration is located in exon 4 (coding exon 4) of the TLCD1 gene. This alteration results from a A to C substitution at nucleotide position 421, causing the threonine (T) at amino acid position 141 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
0.69
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.030
Cadd
Uncertain
25
Dann
Uncertain
0.99
DEOGEN2
Uncertain
0.58
D;.;.
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.74
T;T;T
M_CAP
Uncertain
0.18
D
MetaRNN
Uncertain
0.64
D;D;D
MetaSVM
Uncertain
0.040
D
MutationAssessor
Benign
0.69
N;.;.
MutationTaster
Benign
0.92
D;D
PrimateAI
Benign
0.44
T
PROVEAN
Uncertain
-2.4
N;N;.
REVEL
Uncertain
0.62
Sift
Benign
0.041
D;D;.
Sift4G
Uncertain
0.056
T;T;.
Polyphen
0.98
D;.;.
Vest4
0.49
MVP
0.75
MPC
1.1
ClinPred
0.83
D
GERP RS
5.9
Varity_R
0.62
gMVP
0.90

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: rs1276527788; hg19: chr17-27051851; API