chr10-125788975-C-A

Variant names:

• chr10-125788975-C-A
• rs780837512
• NM_000375.3:c.691G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000375.3(UROS):​c.691G>T​(p.Ala231Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,150 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A231V) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: UROS NM_000375.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.53
• Publications: 1 publications found

Genes affected

UROS (HGNC:12592): (uroporphyrinogen III synthase) The protein encoded by this gene catalyzes the fourth step of porphyrin biosynthesis in the heme biosynthetic pathway. Defects in this gene cause congenital erythropoietic porphyria (Gunther's disease). [provided by RefSeq, Jul 2008]

UROS Gene-Disease associations (from GenCC):

• cutaneous porphyria

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.873

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000375.3. 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
	UROS	NM_000375.3	MANE Select	c.691G>T	p.Ala231Ser	missense	Exon 10 of 10	NP_000366.1	A0A0S2Z4T8
	UROS	NM_001324036.2		c.772G>T	p.Ala258Ser	missense	Exon 11 of 11	NP_001310965.1	A0A3B3ISM6
	UROS	NM_001324037.2		c.691G>T	p.Ala231Ser	missense	Exon 10 of 10	NP_001310966.1	A0A3B3ITJ2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UROS	ENST00000368797.10	TSL:1 MANE Select	c.691G>T	p.Ala231Ser	missense	Exon 10 of 10	ENSP00000357787.4	P10746
	UROS	ENST00000368786.5	TSL:1	c.691G>T	p.Ala231Ser	missense	Exon 9 of 9	ENSP00000357775.1	P10746
	UROS	ENST00000940865.1		c.871G>T	p.Ala291Ser	missense	Exon 11 of 11	ENSP00000610924.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152150 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000943

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152150 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74308

African (AFR) AF: 0.00 AC: 0 AN: 41442

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.0000943 AC: 1 AN: 10610

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2090

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.71	D
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.32
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Uncertain	0.91	D
M_CAP	Pathogenic	0.38	D
MetaRNN	Pathogenic	0.87	D
MetaSVM	Pathogenic	0.81	D
MutationAssessor	Uncertain	2.6	M
PhyloP100		4.5
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.60
Sift	Benign	0.097	T
Sift4G	Benign	0.079	T
Polyphen		1.0	D
Vest4		0.54
MutPred		0.70		Gain of glycosylation at A231 (P = 0.0489)
MVP		0.88
MPC		0.45
ClinPred		0.89	D
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.46
gMVP		0.56
Mutation Taster		=80/20	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: rs780837512; hg19: chr10-127477544;