1-236550954-G-T

Variant names:

• chr1-236550954-G-T
• NM_018072.6:c.6383C>A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018072.6(HEATR1):​c.6383C>A​(p.Thr2128Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000021 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: HEATR1 NM_018072.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.75

Genes affected

HEATR1 (HGNC:25517): (HEAT repeat containing 1) Enables RNA binding activity. Involved in positive regulation of rRNA processing and positive regulation of transcription by RNA polymerase I. Located in fibrillar center and mitochondrion. Implicated in pancreatic ductal carcinoma. Biomarker of glioblastoma. [provided by Alliance of Genome Resources, Apr 2022]

LGALS8 (HGNC:6569): (galectin 8) This gene encodes a member of the galectin family. Galectins are beta-galactoside-binding animal lectins with conserved carbohydrate recognition domains. The galectins have been implicated in many essential functions including development, differentiation, cell-cell adhesion, cell-matrix interaction, growth regulation, apoptosis, and RNA splicing. This gene is widely expressed in tumoral tissues and seems to be involved in integrin-like cell interactions. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.33312428).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HEATR1	NM_018072.6	c.6383C>A	p.Thr2128Asn	missense_variant	Exon 45 of 45	ENST00000366582.8	NP_060542.4
LGALS8	NM_201544.4	c.*2793G>T		3_prime_UTR_variant	Exon 10 of 10	ENST00000366584.9	NP_963838.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HEATR1	ENST00000366582.8	c.6383C>A	p.Thr2128Asn	missense_variant	Exon 45 of 45	5	NM_018072.6	ENSP00000355541.3
LGALS8	ENST00000366584.9	c.*2793G>T		3_prime_UTR_variant	Exon 10 of 10	1	NM_201544.4	ENSP00000355543.4

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000213 AC: 3 AN: 1405968 Hom.: 0 Cov.: 32 AF XY: 0.00000143 AC XY: 1 AN XY: 701444

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: 0.0000118

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.40e-7

Gnomad4 OTH exome AF: 0.0000171

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.6383C>A (p.T2128N) alteration is located in exon 45 (coding exon 44) of the HEATR1 gene. This alteration results from a C to A substitution at nucleotide position 6383, causing the threonine (T) at amino acid position 2128 to be replaced by an asparagine (N). 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	0.44
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.026	T;.
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.87	D;D
M_CAP	Benign	0.0088	T
MetaRNN	Benign	0.33	T;T
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.6	L;.
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-3.1	D;D
REVEL	Benign	0.16
Sift	Uncertain	0.0090	D;D
Sift4G	Uncertain	0.012	D;D
Polyphen		1.0	D;D
Vest4		0.39
MutPred		0.37		Gain of ubiquitination at K2127 (P = 0.0817);.;
MVP		0.39
MPC		0.51
ClinPred		0.96	D
GERP RS		4.4
Varity_R		0.24
gMVP		0.49

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: chr1-236714254;