4-87982622-GT-AC

Variant names:

• chr4-87982622-GT-AC
• NM_001040058.2:c.671_672delGTinsAC
• SPP1 p.Ser224Asn

Variant summary

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

The NM_001040058.2(SPP1):​c.671_672delGTinsAC​(p.Ser224Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPP1 NM_001040058.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.05
• Publications: 0 publications found

Genes affected

SPP1 (HGNC:11255): (secreted phosphoprotein 1) The protein encoded by this gene is involved in the attachment of osteoclasts to the mineralized bone matrix. The encoded protein is secreted and binds hydroxyapatite with high affinity. The osteoclast vitronectin receptor is found in the cell membrane and may be involved in the binding to this protein. This protein is also a cytokine that upregulates expression of interferon-gamma and interleukin-12. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

SPP1 Gene-Disease associations (from GenCC):

• systemic lupus erythematosus

  Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000286618 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001040058.2. 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
	SPP1	NM_001040058.2	MANE Select	c.671_672delGTinsAC	p.Ser224Asn	missense	N/A	NP_001035147.1	P10451-1
	SPP1	NM_001251830.2		c.710_711delGTinsAC	p.Ser237Asn	missense	N/A	NP_001238759.1	B7Z351
	SPP1	NM_000582.3		c.629_630delGTinsAC	p.Ser210Asn	missense	N/A	NP_000573.1	P10451-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPP1	ENST00000395080.8	TSL:1 MANE Select	c.671_672delGTinsAC	p.Ser224Asn	missense	N/A	ENSP00000378517.3	P10451-1
	SPP1	ENST00000237623.11	TSL:1	c.629_630delGTinsAC	p.Ser210Asn	missense	N/A	ENSP00000237623.7	P10451-5
	SPP1	ENST00000360804.4	TSL:1	c.590_591delGTinsAC	p.Ser197Asn	missense	N/A	ENSP00000354042.4	P10451-3

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.0

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: chr4-88903774;