chr12-53328138-C-CA

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001173467.3(SP7):​c.*7_*8insT variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,602,194 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

SP7
NM_001173467.3 3_prime_UTR

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.51
Variant links:
Genes affected
SP7 (HGNC:17321): (Sp7 transcription factor) This gene encodes a member of the Sp subfamily of Sp/XKLF transcription factors. Sp family proteins are sequence-specific DNA-binding proteins characterized by an amino-terminal trans-activation domain and three carboxy-terminal zinc finger motifs. This protein is a bone specific transcription factor and is required for osteoblast differentiation and bone formation.[provided by RefSeq, Jul 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SP7NM_001173467.3 linkuse as main transcriptc.*7_*8insT 3_prime_UTR_variant 3/3 ENST00000536324.4
SP7NM_001300837.2 linkuse as main transcriptc.*7_*8insT 3_prime_UTR_variant 3/3
SP7NM_152860.2 linkuse as main transcriptc.*7_*8insT 3_prime_UTR_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SP7ENST00000536324.4 linkuse as main transcriptc.*7_*8insT 3_prime_UTR_variant 3/32 NM_001173467.3 P1Q8TDD2-1
SP7ENST00000303846.3 linkuse as main transcriptc.*7_*8insT 3_prime_UTR_variant 2/21 P1Q8TDD2-1
SP7ENST00000537210.2 linkuse as main transcript downstream_gene_variant 1 Q8TDD2-2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152130
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000481
AC:
11
AN:
228918
Hom.:
0
AF XY:
0.0000558
AC XY:
7
AN XY:
125356
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000107
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000148
AC:
215
AN:
1450064
Hom.:
0
Cov.:
29
AF XY:
0.000150
AC XY:
108
AN XY:
720664
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000189
Gnomad4 OTH exome
AF:
0.0000835
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152130
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000453

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpMay 09, 2024Variant summary: SP7 c.*7dupT is located in the untranslated mRNA region downstream of the termination codon. The variant allele was found at a frequency of 4.8e-05 in 228918 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in SP7 causing Osteogenesis Imperfecta Type 12, allowing no conclusion about variant significance. To our knowledge, no occurrence of c.*7dupT in individuals affected with Osteogenesis Imperfecta Type 12 and no experimental evidence demonstrating its impact on protein function have been reported. No submitters have cited clinical-significance assessments for this variant to ClinVar. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs775226643; hg19: chr12-53721922; API