Genetic Variant HDGFL1:p.Arg159Leu (chr6-22570051-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138574.4(HDGFL1):c.476G>T(p.Arg159Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000718 in 1,393,236 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

HDGFL1
NM_138574.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.34

Publications

0 publications found

Variant links:

Genes affected

HDGFL1 (HGNC:21095): (HDGF like 1) Predicted to enable double-stranded DNA binding activity and transcription coregulator activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

HDGFL1 links:

CASC15 (HGNC:28245): (cancer susceptibility 15) This gene produces a long non-coding RNA that may regulate cell proliferation. This RNA is upregulated in hepatocellular carcinoma, where it is thought to function as an oncogene. However, some splice variants of this gene may function as a tumor suppressor in neuroblastoma and other tumor types. Circular RNA variants were observed at this gene. [provided by RefSeq, Dec 2017]

CASC15 links:

LOC105374971 (HGNC:):

LOC105374971 links:

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ACMG classification

Classification was made for transcript

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=0.23530054).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HDGFL1	NM_138574.4 link	c.476G>T	p.Arg159Leu	missense_variant	Exon 1 of 1	ENST00000510882.4	NP_612641.2	Q5TGJ6A0A140VJK8
LOC105374971	XR_001744025.1 link	n.489-4068G>T		intron_variant	Intron 5 of 7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HDGFL1	ENST00000510882.4 link	c.476G>T	p.Arg159Leu	missense_variant	Exon 1 of 1	6	NM_138574.4	ENSP00000442129.1	Q5TGJ6
CASC15	ENST00000652081.2 link	n.146-4068G>T		intron_variant	Intron 2 of 7
CASC15	ENST00000846434.1 link	n.433-4068G>T		intron_variant	Intron 3 of 5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.18e-7

AC:

AN:

1393236

Hom.:

Cov.:

AF XY:

0.00000146

AC XY:

AN XY:

686970

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31508

American (AMR)

AF:

0.00

AC:

AN:

35268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24992

East Asian (EAS)

AF:

0.00

AC:

AN:

35866

South Asian (SAS)

AF:

0.00

AC:

AN:

78962

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47696

Middle Eastern (MID)

AF:

0.000246

AC:

AN:

4066

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1077340

Other (OTH)

AF:

0.00

AC:

AN:

57538

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 27, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.476G>T (p.R159L) alteration is located in exon 1 (coding exon 1) of the HDGFL1 gene. This alteration results from a G to T substitution at nucleotide position 476, causing the arginine (R) at amino acid position 159 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.46

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.16

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.077

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.057

MetaRNN

Benign

0.24

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

PhyloP100

1.3

PrimateAI

Benign

0.44

PROVEAN

Pathogenic

-4.5

REVEL

Benign

0.064

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.023

Polyphen

1.0

Vest4

0.19

MutPred

0.26

Gain of loop (P = 0.0851);

MVP

0.42

MPC

1.6

ClinPred

0.77

GERP RS

2.1

PromoterAI

0.018

Neutral

(source)

Varity_R

0.10

gMVP

0.49

Mutation Taster

=100/0

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over