14-99645215-G-A

Variant names:

• chr14-99645215-G-A
• NM_001127258.3:c.8G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001127258.3(HHIPL1):​c.8G>A​(p.Arg3Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000000877 in 1,139,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 8.8e-7 (0 hom.)
• Consequence: HHIPL1 NM_001127258.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.76

Genes affected

HHIPL1 (HGNC:19710): (HHIP like 1) This gene encodes a protein that belongs to the glucose/sorbosone dehydrogenase family. The encoded protein also contains a domain that binds folate and reduced folic acid derivatives. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.156964).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HHIPL1	NM_001127258.3	c.8G>A	p.Arg3Gln	missense_variant	Exon 1 of 9	ENST00000330710.10	NP_001120730.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HHIPL1	ENST00000330710.10	c.8G>A	p.Arg3Gln	missense_variant	Exon 1 of 9	1	NM_001127258.3	ENSP00000330601.5
HHIPL1	ENST00000357223.2	c.8G>A	p.Arg3Gln	missense_variant	Exon 1 of 8	1		ENSP00000349757.2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 8.77e-7 AC: 1 AN: 1139808 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 546652

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000105

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jun 28, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.8G>A (p.R3Q) alteration is located in exon 1 (coding exon 1) of the HHIPL1 gene. This alteration results from a G to A substitution at nucleotide position 8, causing the arginine (R) at amino acid position 3 to be replaced by a glutamine (Q). 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	Benign	0.27
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	19
DANN	Benign	0.95
DEOGEN2	Benign	0.012	T;.
Eigen	Benign	-0.61
Eigen_PC	Benign	-0.68
FATHMM_MKL	Benign	0.38	N
LIST_S2	Benign	0.47	T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.16	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.1	L;L
PrimateAI	Pathogenic	0.82	D
PROVEAN	Benign	-0.040	N;N
REVEL	Benign	0.065
Sift	Pathogenic	0.0	D;D
Sift4G	Benign	0.61	T;T
Polyphen		0.67	P;P
Vest4		0.14
MutPred		0.23		Loss of methylation at R3 (P = 0.0012);Loss of methylation at R3 (P = 0.0012);
MVP		0.23
MPC		0.47
ClinPred		0.84	D
GERP RS		-0.78
Varity_R		0.15
gMVP		0.25

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-100111552;