12-66123998-C-T

Variant summary

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

The NM_032338.4(LLPH):​c.232G>A​(p.Asp78Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

LLPH
NM_032338.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.12
Variant links:
Genes affected
LLPH (HGNC:28229): (LLP homolog, long-term synaptic facilitation factor) Enables RNA binding activity. Predicted to be involved in dendrite extension and positive regulation of dendritic spine development. Located in chromosome and nucleolus. [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
LLPHNM_032338.4 linkuse as main transcriptc.232G>A p.Asp78Asn missense_variant 3/3 ENST00000266604.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LLPHENST00000266604.7 linkuse as main transcriptc.232G>A p.Asp78Asn missense_variant 3/31 NM_032338.4 P1
LLPHENST00000446587.2 linkuse as main transcriptc.232G>A p.Asp78Asn missense_variant 3/33 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000416
AC:
1
AN:
240308
Hom.:
0
AF XY:
0.00000771
AC XY:
1
AN XY:
129662
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000563
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1451170
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
721624
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

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 10, 2023The c.232G>A (p.D78N) alteration is located in exon 3 (coding exon 2) of the LLPH gene. This alteration results from a G to A substitution at nucleotide position 232, causing the aspartic acid (D) at amino acid position 78 to be replaced by an asparagine (N). 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
0.15
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.53
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
T;T
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
.;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.26
T;T
MetaSVM
Benign
-0.40
T
MutationAssessor
Uncertain
2.3
M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-2.7
D;D
REVEL
Benign
0.18
Sift
Uncertain
0.0080
D;D
Sift4G
Benign
0.093
T;T
Polyphen
0.98
D;D
Vest4
0.11
MutPred
0.43
Loss of ubiquitination at K83 (P = 0.0288);Loss of ubiquitination at K83 (P = 0.0288);
MVP
0.54
MPC
0.77
ClinPred
0.88
D
GERP RS
4.8
Varity_R
0.18
gMVP
0.14

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.23
Position offset: 20

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: rs755224272; hg19: chr12-66517778; API