chr12-53382330-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_138473.3(SP1):c.383C>T(p.Thr128Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SP1
NM_138473.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.12

Variant links:

Genes affected

SP1 (HGNC:11205): (Sp1 transcription factor) The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The encoded protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. Post-translational modifications such as phosphorylation, acetylation, glycosylation, and proteolytic processing significantly affect the activity of this protein, which can be an activator or a repressor. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2014]

SP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07389018).

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SP1	NM_138473.3 link	c.383C>T	p.Thr128Ile	missense_variant	Exon 3 of 6	ENST00000327443.9	NP_612482.2	P08047-1
SP1	NM_003109.1 link	c.362C>T	p.Thr121Ile	missense_variant	Exon 3 of 6		NP_003100.1	P08047-2
SP1	NM_001251825.2 link	c.239C>T	p.Thr80Ile	missense_variant	Exon 3 of 6		NP_001238754.1	P08047-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SP1	ENST00000327443.9 link	c.383C>T	p.Thr128Ile	missense_variant	Exon 3 of 6	1	NM_138473.3	ENSP00000329357.4	P08047-1
SP1	ENST00000426431.2 link	c.362C>T	p.Thr121Ile	missense_variant	Exon 3 of 6	1		ENSP00000404263.2	P08047-2
SP1	ENST00000548560.1 link	c.362C>T	p.Thr121Ile	missense_variant	Exon 2 of 2	2		ENSP00000458133.1	H3BVI2
SP1	ENST00000551969.5 link	c.239C>T	p.Thr80Ile	missense_variant	Exon 3 of 3	3		ENSP00000457804.1	H3BUU5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.383C>T (p.T128I) alteration is located in exon 3 (coding exon 3) of the SP1 gene. This alteration results from a C to T substitution at nucleotide position 383, causing the threonine (T) at amino acid position 128 to be replaced by an isoleucine (I). 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

0.21

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Benign

0.90

DEOGEN2

Benign

0.25

T;T;.;.

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.59

FATHMM_MKL

Benign

0.61

LIST_S2

Benign

0.76

T;T;T;T

M_CAP

Benign

0.0083

MetaRNN

Benign

0.074

T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.69

.;N;.;.

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-0.30

N;N;N;N

REVEL

Benign

0.023

Sift

Benign

0.092

T;T;T;T

Sift4G

Benign

0.11

T;T;T;T

Polyphen

0.013

.;B;.;.

Vest4

0.29, 0.28

MutPred

0.27

.;Gain of catalytic residue at T128 (P = 0.0047);.;.;

MVP

0.37

MPC

0.074

ClinPred

0.097

GERP RS

2.1

Varity_R

0.039

gMVP

0.31

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over