8-85464083-T-G

Position:

• chr8-85464083-T-G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_000067.3(CA2):​c.2T>G​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CA2 NM_000067.3 start_lost
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 2.56

Genes affected

CA2 (HGNC:1373): (carbonic anhydrase 2) The protein encoded by this gene is one of several isozymes of carbonic anhydrase, which catalyzes reversible hydration of carbon dioxide. Defects in this enzyme are associated with osteopetrosis and renal tubular acidosis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]

CA3-AS1 (HGNC:51657): (CA3 antisense RNA 1)

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Start lost variant, no new inframe start found.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 8-85464083-T-G is Pathogenic according to our data. Variant chr8-85464083-T-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1700071.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CA2	NM_000067.3	c.2T>G	p.Met1?	start_lost	1/7	ENST00000285379.10
CA3-AS1	NR_121630.1	n.334+499A>C		intron_variant, non_coding_transcript_variant
CA2	NM_001293675.2	c.-183T>G		5_prime_UTR_variant	1/6
CA3-AS1	NR_121631.1	n.106+145A>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CA2	ENST00000285379.10	c.2T>G	p.Met1?	start_lost	1/7	1	NM_000067.3	P1
CA3-AS1	ENST00000521761.6	n.334+499A>C		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Neurodevelopmental delay Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Uncertain	0.020
CADD	Uncertain	25
DANN	Uncertain	0.98
DEOGEN2	Benign	0.33	T
Eigen	Uncertain	0.21
Eigen_PC	Benign	0.22
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Uncertain	0.90	D
M_CAP	Pathogenic	0.96	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Benign	-0.67	T
MutationTaster	Benign	1.0	D
PROVEAN	Benign	-1.7	N
REVEL	Uncertain	0.39
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.84	P
Vest4		0.84
MutPred		0.99		Gain of MoRF binding (P = 0.0126);
MVP		0.88
ClinPred		1.0	D
GERP RS		3.1
Varity_R		0.97
gMVP		0.64

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: chr8-86376312;