NM_201653.4:c.26-191G>T

Variant names:

• chr1-111311498-G-T
• rs12127313
• NM_201653.4:c.26-191G>T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_201653.4(CHIA):​c.26-191G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000539 in 152,136 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00054 (0 hom., cov: 32)
• Consequence: CHIA NM_201653.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0470
• Publications: 5 publications found

Genes affected

CHIA (HGNC:17432): (chitinase acidic) The protein encoded by this gene degrades chitin, which is found in the cell wall of most fungi as well as in arthropods and some nematodes. The encoded protein can also stimulate interleukin 13 expression, and variations in this gene can lead to asthma susceptibility. Several transcript variants encoding a few different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHIA	NM_201653.4	c.26-191G>T		intron_variant	Intron 2 of 11	ENST00000369740.6	NP_970615.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHIA	ENST00000369740.6	c.26-191G>T		intron_variant	Intron 2 of 11	1	NM_201653.4	ENSP00000358755.1

Frequencies

GnomAD3 genomes AF: 0.000539 AC: 82 AN: 152016 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000121

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000328

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00124

Gnomad FIN AF: 0.000189

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000926

Gnomad OTH AF: 0.000480

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

GnomAD4 genome AF: 0.000539 AC: 82 AN: 152136 Hom.: 0 Cov.: 32 AF XY: 0.000403 AC XY: 30 AN XY: 74366

African (AFR) AF: 0.000120 AC: 5 AN: 41512

American (AMR) AF: 0.000327 AC: 5 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00125 AC: 6 AN: 4818

European-Finnish (FIN) AF: 0.000189 AC: 2 AN: 10576

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000926 AC: 63 AN: 68002

Other (OTH) AF: 0.000475 AC: 1 AN: 2106

Alfa AF: 0.00000390 Hom.: 2362

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	1.6
DANN	Benign	0.61
PhyloP100		-0.047
Mutation Taster		=100/0	polymorphism

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: rs12127313; hg19: chr1-111854120;