rs201178398

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001037558.4(HEPN1):​c.110G>A​(p.Trp37*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000564 in 1,614,068 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 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

HEPN1
NM_001037558.4 stop_gained

Scores

6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.119

Publications

1 publications found
Variant links:
Genes affected
HEPN1 (HGNC:34400): (hepatocellular carcinoma, down-regulated 1) This gene is expressed predominantly in the liver. Transient transfection studies show the expression of this gene significantly inhibits cell growth, suggesting a role for this gene in apoptosis. Expression of this gene is down-regulated or lost in hepatocellular carcinomas (HCC), suggesting that loss of this gene is involved in carcinogenesis of hepatocytes (PMID:12971969). This gene maps to the 3'-noncoding region of the HEPACAM gene (GeneID:220296) on the antisense strand. [provided by RefSeq, Aug 2020]
HEPACAM (HGNC:26361): (hepatic and glial cell adhesion molecule) The protein encoded by this gene is a single-pass type I membrane protein that localizes to the cytoplasmic side of the cell membrane. The encoded protein acts as a homodimer and is involved in cell motility and cell-matrix interactions. The expression of this gene is downregulated or undetectable in many cancer cell lines, so this may be a tumor suppressor gene. [provided by RefSeq, Jul 2011]
HEPACAM Gene-Disease associations (from GenCC):
  • megalencephalic leukoencephalopathy with subcortical cysts 2B, remitting, with or without intellectual disability
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • megalencephalic leukoencephalopathy with subcortical cysts 2A
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
  • macrocephaly-autism syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • megalencephalic leukoencephalopathy with subcortical cysts
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001037558.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HEPN1
NM_001037558.4
MANE Select
c.110G>Ap.Trp37*
stop_gained
Exon 1 of 1NP_001032647.2Q6WQI6
HEPACAM
NM_152722.5
MANE Select
c.*1278C>T
3_prime_UTR
Exon 7 of 7NP_689935.2Q14CZ8-1
HEPACAM
NM_001411043.1
c.*1278C>T
3_prime_UTR
Exon 7 of 7NP_001397972.1A0A994J4I1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HEPN1
ENST00000408930.7
TSL:6 MANE Select
c.110G>Ap.Trp37*
stop_gained
Exon 1 of 1ENSP00000386143.4Q6WQI6
HEPACAM
ENST00000298251.5
TSL:1 MANE Select
c.*1278C>T
3_prime_UTR
Exon 7 of 7ENSP00000298251.4Q14CZ8-1
HEPACAM
ENST00000703807.1
c.*1278C>T
3_prime_UTR
Exon 7 of 7ENSP00000515485.1A0A994J4I1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152140
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000486
AC:
12
AN:
247122
AF XY:
0.0000298
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.0000722
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000568
AC:
83
AN:
1461810
Hom.:
0
Cov.:
34
AF XY:
0.0000523
AC XY:
38
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000101
AC:
4
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000657
AC:
73
AN:
1111948
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
5
10
14
19
24
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000525
AC:
8
AN:
152258
Hom.:
0
Cov.:
31
AF XY:
0.0000672
AC XY:
5
AN XY:
74450
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41540
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000969
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.000254
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000579
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Megalencephalic leukoencephalopathy with subcortical cysts (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
23
DANN
Benign
0.84
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.0019
N
PhyloP100
-0.12
Vest4
0.069
GERP RS
-0.24
Mutation Taster
=142/58
disease causing (ClinVar)

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: rs201178398; hg19: chr11-124789756; COSMIC: COSV53428930; COSMIC: COSV53428930; API