19-35282425-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The ENST00000598398.5(HAMP):​c.-84-69C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00271 in 762,254 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0028 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0027 ( 7 hom. )

Consequence

HAMP
ENST00000598398.5 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1B:1

Conservation

PhyloP100: 2.02
Variant links:
Genes affected
HAMP (HGNC:15598): (hepcidin antimicrobial peptide) The product encoded by this gene is involved in the maintenance of iron homeostasis, and it is necessary for the regulation of iron storage in macrophages, and for intestinal iron absorption. The preproprotein is post-translationally cleaved into mature peptides of 20, 22 and 25 amino acids, and these active peptides are rich in cysteines, which form intramolecular bonds that stabilize their beta-sheet structures. These peptides exhibit antimicrobial activity against bacteria and fungi. Mutations in this gene cause hemochromatosis type 2B, also known as juvenile hemochromatosis, a disease caused by severe iron overload that results in cardiomyopathy, cirrhosis, and endocrine failure. [provided by RefSeq, Oct 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.3).
BS2
High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HAMPENST00000598398.5 linkuse as main transcriptc.-84-69C>T intron_variant 2 P1

Frequencies

GnomAD3 genomes
AF:
0.00280
AC:
426
AN:
152146
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00101
Gnomad AMI
AF:
0.00877
Gnomad AMR
AF:
0.00629
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00381
Gnomad OTH
AF:
0.00335
GnomAD4 exome
AF:
0.00269
AC:
1641
AN:
609990
Hom.:
7
Cov.:
6
AF XY:
0.00277
AC XY:
919
AN XY:
331630
show subpopulations
Gnomad4 AFR exome
AF:
0.000641
Gnomad4 AMR exome
AF:
0.00330
Gnomad4 ASJ exome
AF:
0.00133
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000571
Gnomad4 FIN exome
AF:
0.00119
Gnomad4 NFE exome
AF:
0.00373
Gnomad4 OTH exome
AF:
0.00211
GnomAD4 genome
AF:
0.00280
AC:
426
AN:
152264
Hom.:
1
Cov.:
32
AF XY:
0.00269
AC XY:
200
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.00101
Gnomad4 AMR
AF:
0.00628
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.00381
Gnomad4 OTH
AF:
0.00332
Alfa
AF:
0.00112
Hom.:
0
Bravo
AF:
0.00269
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2021- -
Hemochromatosis type 2B Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityDec 10, 2021- -
Hereditary hemochromatosis Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 17, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.30
CADD
Benign
21
DANN
Benign
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs142126068; hg19: chr19-35773328; API