rs367674632

Variant names:

• chr12-121857775-C-G
• rs367674632
• NM_002150.3:c.75G>C

Your query was ambiguous. Multiple possible variants found:

• chr12-121857775-C-G
• chr12-121857775-C-T

Variant summary

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

The NM_002150.3(HPD):​c.75G>C​(p.Trp25Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,776 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.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: HPD NM_002150.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.73
• Publications: 3 publications found

Genes affected

HPD (HGNC:5147): (4-hydroxyphenylpyruvate dioxygenase) The protein encoded by this gene is an enzyme in the catabolic pathway of tyrosine. The encoded protein catalyzes the conversion of 4-hydroxyphenylpyruvate to homogentisate. Defects in this gene are a cause of tyrosinemia type 3 (TYRO3) and hawkinsinuria (HAWK). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]

HPD Gene-Disease associations (from GenCC):

• tyrosinemia type III

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen, Labcorp Genetics (formerly Invitae)
• hawkinsinuria

  Inheritance: AD, Unknown Classification: STRONG, LIMITED Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae)

TIALD (HGNC:56938):

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, 0.9

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002150.3. 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
	HPD	NM_002150.3	MANE Select	c.75G>C	p.Trp25Cys	missense	Exon 3 of 14	NP_002141.2	P32754-1
	HPD	NM_001171993.2		c.-43G>C		5_prime_UTR	Exon 5 of 16	NP_001165464.1	P32754-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HPD	ENST00000289004.8	TSL:1 MANE Select	c.75G>C	p.Trp25Cys	missense	Exon 3 of 14	ENSP00000289004.4	P32754-1
	HPD	ENST00000868949.1		c.75G>C	p.Trp25Cys	missense	Exon 3 of 15	ENSP00000539008.1
	HPD	ENST00000868952.1		c.75G>C	p.Trp25Cys	missense	Exon 3 of 14	ENSP00000539011.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461776 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727186

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111932

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.78
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	T
Eigen	Pathogenic	0.80
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Uncertain	0.13	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Uncertain	-0.075	T
PhyloP100		6.7
PrimateAI	Pathogenic	0.83	D
PROVEAN	Pathogenic	-9.8	D
REVEL	Uncertain	0.61
Sift	Uncertain	0.0020	D
Sift4G	Benign	0.062	T
Vest4		0.95
MutPred		0.60		Gain of catalytic residue at S21 (P = 0)
MVP		0.93
MPC		1.5
ClinPred		1.0	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.87
Mutation Taster		=193/107	polymorphism

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

Other links and lift over

dbSNP: rs367674632; hg19: chr12-122295681;