rs6881900

Positions:

• chr5-52810674-A-C
• chr5-52810674-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_181501.2(ITGA1):​c.61+22260A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0118 in 152,202 control chromosomes in the GnomAD database, including 38 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 0.012 (38 hom., cov: 33)
• Consequence: ITGA1 NM_181501.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.635

Genes affected

ITGA1 (HGNC:6134): (integrin subunit alpha 1) This gene encodes the alpha 1 subunit of integrin receptors. This protein heterodimerizes with the beta 1 subunit to form a cell-surface receptor for collagen and laminin. The heterodimeric receptor is involved in cell-cell adhesion and may play a role in inflammation and fibrosis. The alpha 1 subunit contains an inserted (I) von Willebrand factor type I domain which is thought to be involved in collagen binding. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0118 (1794/152202) while in subpopulation AFR AF= 0.0407 (1688/41514). AF 95% confidence interval is 0.039. There are 38 homozygotes in gnomad4. There are 816 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 38 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ITGA1	NM_181501.2	c.61+22260A>C		intron_variant		ENST00000282588.7	NP_852478.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ITGA1	ENST00000282588.7	c.61+22260A>C		intron_variant		1	NM_181501.2	ENSP00000282588	P1
ITGA1	ENST00000650673.1	c.61+22260A>C		intron_variant, NMD_transcript_variant				ENSP00000498529
ITGA1	ENST00000504086.1	n.469-13639A>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.0118 AC: 1788 AN: 152084 Hom.: 38 Cov.: 33

Gnomad AFR AF: 0.0406

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00543

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00813

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

GnomAD4 genome AF: 0.0118 AC: 1794 AN: 152202 Hom.: 38 Cov.: 33 AF XY: 0.0110 AC XY: 816 AN XY: 74408

Gnomad4 AFR AF: 0.0407

Gnomad4 AMR AF: 0.00543

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00804

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	1.2
DANN	Benign	0.68

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

LitVar

Other links and lift over

dbSNP: rs6881900; hg19: chr5-52106508;