rs371317879

Variant names:

• chr17-28620589-T-C
• rs371317879
• NM_014680.5:c.5284A>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_014680.5(BLTP2):​c.5284A>G​(p.Ile1762Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BLTP2 NM_014680.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.58
• Publications: 0 publications found

Genes affected

BLTP2 (HGNC:28960): (bridge-like lipid transfer protein family member 2) This gene was initially characterized in human as having high expression levels in breast carcinomas and breast cancer cell lines. This gene also has increased expression in prostrate cancer cells relative to normal prostrate tissues. Expression of this gene is negatively regulated by direct binding of the microRNA miR-195 to its 3' UTR. miR-195 has been shown to modulate the invasiveness of prostrate cancer cells and xenograft metastases by downgrading expression of this gene. In mouse, the protein encoded by this gene was identified as an antigen on acute monocytic leukemia cells. In human, alternative splicing results in multiple transcript variants encoding distinct isoforms; some of these isoforms are predicted to contain an RNA pol II promoter FMP27 protein domain and a Golgi-body-localization APT1 domain. [provided by RefSeq, Apr 2017]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.27883244).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014680.5. 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
	BLTP2	NM_014680.5	MANE Select	c.5284A>G	p.Ile1762Val	missense	Exon 29 of 39	NP_055495.2
	BLTP2	NM_001321560.2		c.5281A>G	p.Ile1761Val	missense	Exon 29 of 39	NP_001308489.1
	BLTP2	NM_001363826.1		c.4855A>G	p.Ile1619Val	missense	Exon 28 of 38	NP_001350755.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BLTP2	ENST00000528896.7	TSL:1 MANE Select	c.5284A>G	p.Ile1762Val	missense	Exon 29 of 39	ENSP00000436773.2	Q14667-1
	BLTP2	ENST00000939120.1		c.5281A>G	p.Ile1761Val	missense	Exon 29 of 39	ENSP00000609179.1
	BLTP2	ENST00000939122.1		c.5281A>G	p.Ile1761Val	missense	Exon 29 of 39	ENSP00000609181.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.056	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	21
DANN	Benign	0.91
DEOGEN2	Benign	0.0011	T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.28	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.13	N
PhyloP100		7.6
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	0.13	N
REVEL	Benign	0.27
Sift	Benign	1.0	T
Sift4G	Benign	0.34	T
Polyphen		0.90	P
Vest4		0.41
MVP		0.54
MPC		0.90
ClinPred		0.40	T
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.088
gMVP		0.29

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: rs371317879; hg19: chr17-26947607;