17-2056946-C-T

Variant summary

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

The NM_006497.4(HIC1):​c.256C>T​(p.Arg86Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,455,082 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

HIC1
NM_006497.4 missense

Scores

5
12
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.10
Variant links:
Genes affected
HIC1 (HGNC:4909): (HIC ZBTB transcriptional repressor 1) This gene functions as a growth regulatory and tumor repressor gene. Hypermethylation or deletion of the region of this gene have been associated with tumors and the contiguous-gene syndrome, Miller-Dieker syndrome. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Sep 2010]

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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
HIC1NM_006497.4 linkuse as main transcriptc.256C>T p.Arg86Cys missense_variant 2/2 ENST00000619757.5 NP_006488.2
HIC1NM_001098202.1 linkuse as main transcriptc.313C>T p.Arg105Cys missense_variant 2/2 NP_001091672.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HIC1ENST00000619757.5 linkuse as main transcriptc.256C>T p.Arg86Cys missense_variant 2/21 NM_006497.4 ENSP00000477858 P4Q14526-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000431
AC:
1
AN:
232190
Hom.:
0
AF XY:
0.00000779
AC XY:
1
AN XY:
128378
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:
0.0000341
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1455082
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
723716
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:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.01e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000837
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 GeneticsJan 26, 2023The c.313C>T (p.R105C) alteration is located in exon 2 (coding exon 2) of the HIC1 gene. This alteration results from a C to T substitution at nucleotide position 313, causing the arginine (R) at amino acid position 105 to be replaced by a cysteine (C). 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
Uncertain
0.52
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
T;.;.;D
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.98
D;D;.;D
M_CAP
Pathogenic
0.75
D
MetaRNN
Uncertain
0.70
D;D;D;D
MetaSVM
Uncertain
-0.19
T
MutationAssessor
Benign
1.9
.;.;.;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.94
D
PROVEAN
Pathogenic
-5.4
.;D;.;D
REVEL
Uncertain
0.47
Sift
Pathogenic
0.0
.;D;.;D
Sift4G
Uncertain
0.0080
D;D;D;D
Polyphen
1.0
.;.;.;D
Vest4
0.65, 0.65, 0.65
MutPred
0.50
.;.;.;Loss of disorder (P = 0.0455);
MVP
0.71
ClinPred
0.91
D
GERP RS
4.3
Varity_R
0.46
gMVP
0.87

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: rs759366814; hg19: chr17-1960240; COSMIC: COSV53977048; COSMIC: COSV53977048; API