7-21428770-A-G

Position:

• chr7-21428770-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003112.5(SP4):​c.101A>G​(p.Lys34Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SP4 NM_003112.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.84

Genes affected

SP4 (HGNC:11209): (Sp4 transcription factor) The protein encoded by this gene is a transcription factor that can bind to the GC promoter region of a variety of genes, including those of the photoreceptor signal transduction system. The encoded protein binds to the same sites in promoter CpG islands as does the transcription factor SP1, although its expression is much more restricted compared to that of SP1. This gene may be involved in bipolar disorder and schizophrenia. [provided by RefSeq, May 2016]

SP4 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19349506).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SP4	NM_003112.5	c.101A>G	p.Lys34Arg	missense_variant	2/6	ENST00000222584.8	NP_003103.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SP4	ENST00000222584.8	c.101A>G	p.Lys34Arg	missense_variant	2/6	1	NM_003112.5	ENSP00000222584.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2024

The c.101A>G (p.K34R) alteration is located in exon 2 (coding exon 2) of the SP4 gene. This alteration results from a A to G substitution at nucleotide position 101, causing the lysine (K) at amino acid position 34 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Uncertain	23
DANN	Benign	0.95
DEOGEN2	Benign	0.31	T;.
Eigen	Benign	0.0070
Eigen_PC	Benign	0.16
FATHMM_MKL	Benign	0.71	D
LIST_S2	Benign	0.81	T;T
M_CAP	Benign	0.0047	T
MetaRNN	Benign	0.19	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.97	L;.
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	-0.11	N;.
REVEL	Benign	0.082
Sift	Benign	0.29	T;.
Sift4G	Benign	0.58	T;.
Polyphen		0.11	B;.
Vest4		0.29
MutPred		0.15		Loss of methylation at K34 (P = 0.0086);.;
MVP		0.27
MPC		0.25
ClinPred		0.89	D
GERP RS		4.7
Varity_R		0.24
gMVP		0.24

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-21468388;