Variant chr8-132065903-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001145095.3(HHLA1):c.1535G>T(p.Arg512Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

HHLA1
NM_001145095.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.62

Variant links:

Genes affected

HHLA1 (HGNC:4904): (HHLA1 neighbor of OC90) Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

HHLA1 links:

ENSG00000258417 (HGNC:):

ENSG00000258417 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.28566024).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HHLA1	NM_001145095.3 linkuse as main transcript	c.1535G>T	p.Arg512Met	missense_variant	16/17	ENST00000414222.2	NP_001138567.1	C9JL84-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
HHLA1	ENST00000414222.2 linkuse as main transcript	c.1535G>T	p.Arg512Met	missense_variant	16/17	5	NM_001145095.3	ENSP00000388322.1	C9JL84-1
ENSG00000258417	ENST00000262283.5 linkuse as main transcript	c.541+10152G>T		intron_variant		5		ENSP00000262283.5	I6L893
HHLA1	ENST00000473291.1 linkuse as main transcript	n.1997G>T		non_coding_transcript_exon_variant	6/7	1
HHLA1	ENST00000673615.1 linkuse as main transcript	c.1643G>T	p.Arg548Met	missense_variant	17/18			ENSP00000500443.1	A0A5F9ZHM0

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1149416

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

563918

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 30, 2021

The c.1535G>T (p.R512M) alteration is located in exon 15 (coding exon 15) of the HHLA1 gene. This alteration results from a G to T substitution at nucleotide position 1535, causing the arginine (R) at amino acid position 512 to be replaced by a methionine (M). 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

0.26

BayesDel_addAF

Uncertain

0.014

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.0042

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.24

FATHMM_MKL

Benign

0.39

LIST_S2

Benign

0.42

M_CAP

Benign

0.0075

MetaRNN

Benign

0.29

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.35

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.016

Polyphen

1.0

Vest4

0.60

MVP

0.055

ClinPred

0.29

GERP RS

3.0

Varity_R

0.13

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over