chr8-85343981-C-A

Variant names:

• chr8-85343981-C-A
• rs12544332
• NM_001128831.4:c.-24-2322G>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001128831.4(CA1):​c.-24-2322G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.572 in 148,988 control chromosomes in the GnomAD database, including 24,712 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.57 (24712 hom., cov: 25)
• Consequence: CA1 NM_001128831.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.19
• Publications: 4 publications found

Genes affected

CA1 (HGNC:1368): (carbonic anhydrase 1) Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide. They participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva and gastric acid. They show extensive diversity in tissue distribution and in their subcellular localization. This CA1 gene is closely linked to the CA2 and CA3 genes on chromosome 8. It encodes a cytosolic protein that is found at the highest level in erythrocytes. Allelic variants of this gene have been described in some populations. Alternative splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, Nov 2016]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.592 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128831.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CA1	NM_001128831.4	MANE Select	c.-24-2322G>T		intron	N/A	NP_001122303.1
	CA1	NM_001128829.4		c.-24-2322G>T		intron	N/A	NP_001122301.1
	CA1	NM_001128830.4		c.-101-1156G>T		intron	N/A	NP_001122302.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CA1	ENST00000523022.6	TSL:1 MANE Select	c.-24-2322G>T		intron	N/A	ENSP00000429798.1
	CA1	ENST00000523953.5	TSL:1	c.-24-2322G>T		intron	N/A	ENSP00000430656.1
	CA1	ENST00000431316.3	TSL:5	c.-24-2322G>T		intron	N/A	ENSP00000392338.1

Frequencies

GnomAD3 genomes AF: 0.572 AC: 85163 AN: 148900 Hom.: 24699 Cov.: 25

Gnomad AFR AF: 0.545

Gnomad AMI AF: 0.520

Gnomad AMR AF: 0.541

Gnomad ASJ AF: 0.576

Gnomad EAS AF: 0.400

Gnomad SAS AF: 0.465

Gnomad FIN AF: 0.697

Gnomad MID AF: 0.604

Gnomad NFE AF: 0.597

Gnomad OTH AF: 0.601

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.572 AC: 85196 AN: 148988 Hom.: 24712 Cov.: 25 AF XY: 0.573 AC XY: 41514 AN XY: 72506

African (AFR) AF: 0.545 AC: 22073 AN: 40494

American (AMR) AF: 0.540 AC: 7947 AN: 14704

Ashkenazi Jewish (ASJ) AF: 0.576 AC: 1992 AN: 3458

East Asian (EAS) AF: 0.400 AC: 2025 AN: 5066

South Asian (SAS) AF: 0.463 AC: 2192 AN: 4732

European-Finnish (FIN) AF: 0.697 AC: 6838 AN: 9812

Middle Eastern (MID) AF: 0.609 AC: 173 AN: 284

European-Non Finnish (NFE) AF: 0.597 AC: 40256 AN: 67482

Other (OTH) AF: 0.599 AC: 1233 AN: 2058

Alfa AF: 0.594 Hom.: 5447

Bravo AF: 0.566

Asia WGS AF: 0.403 AC: 1394 AN: 3458

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.014
DANN	Benign	0.52
PhyloP100		-2.2
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs12544332; hg19: chr8-86256210;