chr8-61517629-G-A

Position:

• chr8-61517629-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Moderate BP6_Moderate BP7 BS1 BS2

The NM_004318.4(ASPH):​c.2025C>T​(p.His675=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00055 in 1,614,106 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.00041 (1 hom., cov: 32)
  • Exomes 𝑓: 0.00056 (13 hom.)
• Consequence: ASPH NM_004318.4 synonymous
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.0580

Genes affected

ASPH (HGNC:757): (aspartate beta-hydroxylase) This gene is thought to play an important role in calcium homeostasis. The gene is expressed from two promoters and undergoes extensive alternative splicing. The encoded set of proteins share varying amounts of overlap near their N-termini but have substantial variations in their C-terminal domains resulting in distinct functional properties. The longest isoforms (a and f) include a C-terminal Aspartyl/Asparaginyl beta-hydroxylase domain that hydroxylates aspartic acid or asparagine residues in the epidermal growth factor (EGF)-like domains of some proteins, including protein C, coagulation factors VII, IX, and X, and the complement factors C1R and C1S. Other isoforms differ primarily in the C-terminal sequence and lack the hydroxylase domain, and some have been localized to the endoplasmic and sarcoplasmic reticulum. Some of these isoforms are found in complexes with calsequestrin, triadin, and the ryanodine receptor, and have been shown to regulate calcium release from the sarcoplasmic reticulum. Some isoforms have been implicated in metastasis. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant 8-61517629-G-A is Benign according to our data. Variant chr8-61517629-G-A is described in ClinVar as [Benign]. Clinvar id is 2044163.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.058 with no splicing effect.
• BS1: Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000414 (63/152344) while in subpopulation SAS AF= 0.012 (58/4832). AF 95% confidence interval is 0.00953. There are 1 homozygotes in gnomad4. There are 48 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 13 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASPH	NM_004318.4	c.2025C>T	p.His675=	synonymous_variant	24/25	ENST00000379454.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASPH	ENST00000379454.9	c.2025C>T	p.His675=	synonymous_variant	24/25	1	NM_004318.4	P3
ASPH	ENST00000541428.5	c.1938C>T	p.His646=	synonymous_variant	24/25	2		A2
ASPH	ENST00000521909.1	n.235C>T		non_coding_transcript_exon_variant	3/3	3

Frequencies

GnomAD3 genomes AF: 0.000420 AC: 64 AN: 152226 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.0122

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.00114 AC: 287 AN: 251084 Hom.: 1 AF XY: 0.00152 AC XY: 206 AN XY: 135680

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00902

Gnomad FIN exome AF: 0.0000462

Gnomad NFE exome AF: 0.0000353

Gnomad OTH exome AF: 0.000653

GnomAD4 exome AF: 0.000564 AC: 825 AN: 1461762 Hom.: 13 Cov.: 30 AF XY: 0.000817 AC XY: 594 AN XY: 727184

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000447

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00864

Gnomad4 FIN exome AF: 0.0000374

Gnomad4 NFE exome AF: 0.0000351

Gnomad4 OTH exome AF: 0.000596

GnomAD4 genome AF: 0.000414 AC: 63 AN: 152344 Hom.: 1 Cov.: 32 AF XY: 0.000644 AC XY: 48 AN XY: 74488

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.0120

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.0000880 Hom.: 0

Bravo AF: 0.0000869

Asia WGS AF: 0.00751 AC: 26 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 20, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	2.7
DANN	Benign	0.54
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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

Other links and lift over

dbSNP: rs149186983; hg19: chr8-62430188;