1-45011241-G-A

Variant names:

• chr1-45011241-G-A
• rs1024728376
• NM_024602.6:c.17C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_024602.6(HECTD3):​c.17C>T​(p.Pro6Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000247 in 1,214,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000025 (0 hom.)
• Consequence: HECTD3 NM_024602.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.26
• Publications: 0 publications found

Genes affected

HECTD3 (HGNC:26117): (HECT domain E3 ubiquitin protein ligase 3) The protein encoded by this gene transfers ubiquitin from an E2 ubiquitin-conjugating enzyme to targeted substrates, leading to the degradation of those substrates. The encoded protein has been shown to transfer ubiquitin to TRIOBP to facilitate cell cycle progression, and to STX8. [provided by RefSeq, Dec 2012]

UROD (HGNC:12591): (uroporphyrinogen decarboxylase) This gene encodes an enzyme in the heme biosynthetic pathway. This enzyme is responsible for catalyzing the conversion of uroporphyrinogen to coproporphyrinogen through the removal of four carboxymethyl side chains. Mutations and deficiency in this enzyme are known to cause familial porphyria cutanea tarda and hepatoerythropoetic porphyria.[provided by RefSeq, Aug 2010]

UROD Gene-Disease associations (from GenCC):

• UROD-related inherited porphyria

  Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
• familial porphyria cutanea tarda

  Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
• hepatoerythropoietic porphyria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15008533).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024602.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HECTD3	NM_024602.6	MANE Select	c.17C>T	p.Pro6Leu	missense	Exon 1 of 21	NP_078878.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HECTD3	ENST00000372172.5	TSL:5 MANE Select	c.17C>T	p.Pro6Leu	missense	Exon 1 of 21	ENSP00000361245.4	Q5T447-1
	HECTD3	ENST00000875142.1		c.17C>T	p.Pro6Leu	missense	Exon 1 of 21	ENSP00000545201.1
	HECTD3	ENST00000875144.1		c.17C>T	p.Pro6Leu	missense	Exon 1 of 21	ENSP00000545203.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000247 AC: 3 AN: 1214228 Hom.: 0 Cov.: 33 AF XY: 0.00000340 AC XY: 2 AN XY: 587616

African (AFR) AF: 0.00 AC: 0 AN: 23780

American (AMR) AF: 0.0000941 AC: 1 AN: 10624

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 16908

East Asian (EAS) AF: 0.00 AC: 0 AN: 27604

South Asian (SAS) AF: 0.00 AC: 0 AN: 53854

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 29330

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3484

European-Non Finnish (NFE) AF: 0.00000200 AC: 2 AN: 998564

Other (OTH) AF: 0.00 AC: 0 AN: 50080

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.038	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.013	T
Eigen	Benign	-0.37
Eigen_PC	Benign	-0.24
FATHMM_MKL	Benign	0.64	D
LIST_S2	Benign	0.83	T
M_CAP	Uncertain	0.15	D
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N
PhyloP100		1.3
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	-0.40	N
REVEL	Benign	0.18
Sift	Uncertain	0.011	D
Sift4G	Benign	0.12	T
Polyphen		0.30	B
Vest4		0.43
MutPred		0.21		Loss of glycosylation at P6 (P = 0.0283)
MVP		0.55
MPC		1.7
ClinPred		0.18	T
GERP RS		2.0
PromoterAI		0.043	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.081
gMVP		0.45
Mutation Taster		=88/12	polymorphism

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

Other links and lift over

dbSNP: rs1024728376; hg19: chr1-45476913; COSMIC: COSV105055201; COSMIC: COSV105055201;