chr17-1776705-T-T

Variant names:

• chr17-1776705-T-T
• ENST00000254722.9:c.

Variant summary

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

The ENST00000254722.9(SERPINF1):​c. variant causes a exon region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 30)
• Consequence: SERPINF1 ENST00000254722.9 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.52
• Publications: 0 publications found

Genes affected

SERPINF1 (HGNC:8824): (serpin family F member 1) This gene encodes a member of the serpin family that does not display the serine protease inhibitory activity shown by many of the other serpin proteins. The encoded protein is secreted and strongly inhibits angiogenesis. In addition, this protein is a neurotrophic factor involved in neuronal differentiation in retinoblastoma cells. Mutations in this gene were found in individuals with osteogenesis imperfecta, type VI. [provided by RefSeq, Aug 2016]

SERPINF1 Gene-Disease associations (from GenCC):

• osteogenesis imperfecta type 6

  Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
• osteogenesis imperfecta type 3

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• osteogenesis imperfecta type 4

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000295186 (HGNC:):

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: ENST00000254722.9. 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
	SERPINF1	NM_002615.7	MANE Select	c.		intron	N/A	NP_002606.3
	SERPINF1	NM_001329903.2		c.		intron	N/A	NP_001316832.1	A0A140VKF3
	SERPINF1	NM_001329904.2		c.		intron	N/A	NP_001316833.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SERPINF1	ENST00000254722.9	TSL:1 MANE Select	c.		exon_region	Exon 7 of 8	ENSP00000254722.4	P36955
	SERPINF1	ENST00000869424.1		c.		exon_region	Exon 7 of 8	ENSP00000539483.1
	SERPINF1	ENST00000869426.1		c.		exon_region	Exon 7 of 8	ENSP00000539485.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 54

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.5

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr17-1679999;