12-121856399-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_StrongBP6_ModerateBP7

The NM_002150.3(HPD):​c.249C>T​(p.Gly83=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000688 in 1,613,944 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

HPD
NM_002150.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.45
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 12-121856399-G-A is Benign according to our data. Variant chr12-121856399-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 723736.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-2.45 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HPDNM_002150.3 linkuse as main transcriptc.249C>T p.Gly83= synonymous_variant 6/14 ENST00000289004.8 NP_002141.2
LOC105370035XR_002957437.2 linkuse as main transcriptn.147G>A non_coding_transcript_exon_variant 1/3
HPDNM_001171993.2 linkuse as main transcriptc.132C>T p.Gly44= synonymous_variant 8/16 NP_001165464.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HPDENST00000289004.8 linkuse as main transcriptc.249C>T p.Gly83= synonymous_variant 6/141 NM_002150.3 ENSP00000289004 P1
ENST00000543848.1 linkuse as main transcriptn.134+7G>A splice_region_variant, intron_variant, non_coding_transcript_variant 3
HPDENST00000543163.5 linkuse as main transcriptc.132C>T p.Gly44= synonymous_variant 7/155 ENSP00000441677 P32754-2
HPDENST00000542159.2 linkuse as main transcriptn.285C>T non_coding_transcript_exon_variant 3/65

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152050
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000139
AC:
35
AN:
251442
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.0000616
AC:
90
AN:
1461776
Hom.:
1
Cov.:
31
AF XY:
0.0000743
AC XY:
54
AN XY:
727198
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000313
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.0000375
Gnomad4 NFE exome
AF:
0.0000450
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000944
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000199
Hom.:
0
Bravo
AF:
0.000132
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Tyrosinemia type III;C2931042:Hawkinsinuria Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
3.6
DANN
Benign
0.78
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs137989475; hg19: chr12-122294305; COSMIC: COSV100000008; COSMIC: COSV100000008; API