chr6-26466954-T-C

Variant names:

• chr6-26466954-T-C
• rs3799380
• NM_007049.5:c.982+866T>C

Variant summary

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

The NM_007049.5(BTN2A1):​c.982+866T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.301 in 152,156 control chromosomes in the GnomAD database, including 9,608 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 0.30 (9608 hom., cov: 32)
• Consequence: BTN2A1 NM_007049.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0720
• Publications: 33 publications found

Genes affected

BTN2A1 (HGNC:1136): (butyrophilin subfamily 2 member A1) This gene encodes a member of the immunoglobulin superfamily. The gene is located in a cluster of butyrophilin-like genes in the juxta-telomeric region of the major histocompatibility complex on chromosome 6. A pseudogene of this gene has been identified in this cluster. The encoded protein is an integral plasma membrane protein involved in lipid, fatty-acid, and sterol metabolism. Alterations in this gene may be associated with several disease states including metabolic syndrome. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2013]

ENSG00000291336 (HGNC:):

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.598 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007049.5. 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
	BTN2A1	NM_007049.5	MANE Select	c.982+866T>C		intron	N/A	NP_008980.1
	BTN2A1	NM_001197233.3		c.799+866T>C		intron	N/A	NP_001184162.1
	BTN2A1	NM_078476.4		c.983-765T>C		intron	N/A	NP_510961.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BTN2A1	ENST00000312541.10	TSL:1 MANE Select	c.982+866T>C		intron	N/A	ENSP00000312158.5
	BTN2A1	ENST00000429381.5	TSL:1	c.983-765T>C		intron	N/A	ENSP00000416945.1
	BTN2A1	ENST00000469185.5	TSL:1	c.982+866T>C		intron	N/A	ENSP00000419043.1

Frequencies

GnomAD3 genomes AF: 0.300 AC: 45664 AN: 152038 Hom.: 9577 Cov.: 32

Gnomad AFR AF: 0.604

Gnomad AMI AF: 0.240

Gnomad AMR AF: 0.209

Gnomad ASJ AF: 0.164

Gnomad EAS AF: 0.163

Gnomad SAS AF: 0.227

Gnomad FIN AF: 0.127

Gnomad MID AF: 0.231

Gnomad NFE AF: 0.188

Gnomad OTH AF: 0.277

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

GnomAD4 genome AF: 0.301 AC: 45741 AN: 152156 Hom.: 9608 Cov.: 32 AF XY: 0.293 AC XY: 21796 AN XY: 74414

African (AFR) AF: 0.604 AC: 25074 AN: 41498

American (AMR) AF: 0.209 AC: 3192 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.164 AC: 569 AN: 3470

East Asian (EAS) AF: 0.163 AC: 845 AN: 5190

South Asian (SAS) AF: 0.226 AC: 1091 AN: 4818

European-Finnish (FIN) AF: 0.127 AC: 1346 AN: 10610

Middle Eastern (MID) AF: 0.228 AC: 67 AN: 294

European-Non Finnish (NFE) AF: 0.188 AC: 12759 AN: 67978

Other (OTH) AF: 0.275 AC: 580 AN: 2110

Alfa AF: 0.227 Hom.: 17175

Bravo AF: 0.321

Asia WGS AF: 0.213 AC: 740 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	1.7
DANN	Benign	0.41
PhyloP100		-0.072
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: rs3799380; hg19: chr6-26467182;