1-159830049-G-T

Variant names:

• chr1-159830049-G-T
• rs534230763
• NM_020125.3:c.224G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020125.3(SLAMF8):​c.224G>T​(p.Arg75Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R75H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLAMF8 NM_020125.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.27
• Publications: 0 publications found

Genes affected

SLAMF8 (HGNC:21391): (SLAM family member 8) This gene encodes a member of the CD2 family of cell surface proteins involved in lymphocyte activation. These proteins are characterized by Ig domains. This protein is expressed in lymphoid tissues, and studies of a similar protein in mouse suggest that it may function during B cell lineage commitment. The gene is found in a region of chromosome 1 containing many CD2 genes. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020125.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLAMF8	NM_020125.3	MANE Select	c.224G>T	p.Arg75Leu	missense	Exon 2 of 5	NP_064510.1	Q9P0V8-1
	SLAMF8	NM_001330741.2		c.41-2827G>T		intron	N/A	NP_001317670.1	Q9P0V8-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLAMF8	ENST00000289707.10	TSL:1 MANE Select	c.224G>T	p.Arg75Leu	missense	Exon 2 of 5	ENSP00000289707.5	Q9P0V8-1
	SLAMF8	ENST00000852920.1		c.224G>T	p.Arg75Leu	missense	Exon 2 of 5	ENSP00000522979.1
	SLAMF8	ENST00000852921.1		c.206G>T	p.Arg69Leu	missense	Exon 2 of 5	ENSP00000522980.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461876 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727236

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112006

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.36
BayesDel_addAF	Benign	-0.083	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.18	T
Eigen	Benign	0.099
Eigen_PC	Benign	0.16
FATHMM_MKL	Benign	0.72	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.015	T
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	2.0	M
PhyloP100		2.3
PrimateAI	Uncertain	0.52	T
PROVEAN	Uncertain	-3.7	D
REVEL	Benign	0.11
Sift	Uncertain	0.0080	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.78	P
Vest4		0.75
MutPred		0.52		Loss of disorder (P = 0.0859)
MVP		0.40
MPC		0.27
ClinPred		0.98	D
GERP RS		4.4
Varity_R		0.21
gMVP		0.52
Mutation Taster		=82/18	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs534230763; hg19: chr1-159799839;