rs1784304

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000190.4(HMBS):​c.613-19C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.26 in 1,609,796 control chromosomes in the GnomAD database, including 57,608 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.25 ( 5233 hom., cov: 32)
Exomes 𝑓: 0.26 ( 52375 hom. )

Consequence

HMBS
NM_000190.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -2.00
Variant links:
Genes affected
HMBS (HGNC:4982): (hydroxymethylbilane synthase) This gene encodes a member of the hydroxymethylbilane synthase superfamily. The encoded protein is the third enzyme of the heme biosynthetic pathway and catalyzes the head to tail condensation of four porphobilinogen molecules into the linear hydroxymethylbilane. Mutations in this gene are associated with the autosomal dominant disease acute intermittent porphyria. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 11-119092106-C-A is Benign according to our data. Variant chr11-119092106-C-A is described in ClinVar as [Benign]. Clinvar id is 255486.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-119092106-C-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.463 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HMBSNM_000190.4 linkuse as main transcriptc.613-19C>A intron_variant ENST00000652429.1 NP_000181.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HMBSENST00000652429.1 linkuse as main transcriptc.613-19C>A intron_variant NM_000190.4 ENSP00000498786 P3P08397-1

Frequencies

GnomAD3 genomes
AF:
0.254
AC:
38667
AN:
152008
Hom.:
5220
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.183
Gnomad AMI
AF:
0.226
Gnomad AMR
AF:
0.317
Gnomad ASJ
AF:
0.307
Gnomad EAS
AF:
0.479
Gnomad SAS
AF:
0.328
Gnomad FIN
AF:
0.317
Gnomad MID
AF:
0.222
Gnomad NFE
AF:
0.249
Gnomad OTH
AF:
0.265
GnomAD3 exomes
AF:
0.301
AC:
75561
AN:
251102
Hom.:
12385
AF XY:
0.298
AC XY:
40436
AN XY:
135704
show subpopulations
Gnomad AFR exome
AF:
0.178
Gnomad AMR exome
AF:
0.406
Gnomad ASJ exome
AF:
0.314
Gnomad EAS exome
AF:
0.485
Gnomad SAS exome
AF:
0.318
Gnomad FIN exome
AF:
0.320
Gnomad NFE exome
AF:
0.248
Gnomad OTH exome
AF:
0.281
GnomAD4 exome
AF:
0.260
AC:
379514
AN:
1457670
Hom.:
52375
Cov.:
32
AF XY:
0.263
AC XY:
190491
AN XY:
725336
show subpopulations
Gnomad4 AFR exome
AF:
0.177
Gnomad4 AMR exome
AF:
0.396
Gnomad4 ASJ exome
AF:
0.314
Gnomad4 EAS exome
AF:
0.482
Gnomad4 SAS exome
AF:
0.317
Gnomad4 FIN exome
AF:
0.316
Gnomad4 NFE exome
AF:
0.241
Gnomad4 OTH exome
AF:
0.270
GnomAD4 genome
AF:
0.254
AC:
38711
AN:
152126
Hom.:
5233
Cov.:
32
AF XY:
0.263
AC XY:
19566
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.184
Gnomad4 AMR
AF:
0.317
Gnomad4 ASJ
AF:
0.307
Gnomad4 EAS
AF:
0.479
Gnomad4 SAS
AF:
0.327
Gnomad4 FIN
AF:
0.317
Gnomad4 NFE
AF:
0.249
Gnomad4 OTH
AF:
0.271
Alfa
AF:
0.244
Hom.:
6445
Bravo
AF:
0.252
Asia WGS
AF:
0.389
AC:
1355
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Acute intermittent porphyria Benign:1
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
6.6
DANN
Benign
0.78
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs1784304; hg19: chr11-118962816; API