8-14554898-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_139167.4(SGCZ):c.68C>T(p.Thr23Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,611,742 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
SGCZ
NM_139167.4 missense
NM_139167.4 missense
Scores
1
9
6
Clinical Significance
Conservation
PhyloP100: 6.40
Genes affected
SGCZ (HGNC:14075): (sarcoglycan zeta) The zeta-sarcoglycan gene measures over 465 kb and localizes to 8p22. This protein is part of the sarcoglycan complex, a group of 6 proteins. The sarcoglycans are all N-glycosylated transmembrane proteins with a short intra-cellular domain, a single transmembrane region and a large extra-cellular domain containing a carboxyl-terminal cluster with several conserved cysteine residues. The sarcoglycan complex is part of the dystrophin-associated glycoprotein complex (DGC), which bridges the inner cytoskeleton and the extra-cellular matrix. [provided by RefSeq, Jul 2008]
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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 |
---|---|---|---|---|---|---|---|
SGCZ | NM_139167.4 | c.68C>T | p.Thr23Ile | missense_variant | 2/8 | ENST00000382080.6 | |
SGCZ | NM_001322879.2 | c.68C>T | p.Thr23Ile | missense_variant | 2/7 | ||
SGCZ | NM_001322880.2 | c.68C>T | p.Thr23Ile | missense_variant | 2/7 | ||
SGCZ | NM_001322881.2 | c.-61C>T | 5_prime_UTR_variant | 2/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SGCZ | ENST00000382080.6 | c.68C>T | p.Thr23Ile | missense_variant | 2/8 | 5 | NM_139167.4 | P1 | |
SGCZ | ENST00000421524.6 | c.29C>T | p.Thr10Ile | missense_variant | 1/6 | 1 |
Frequencies
GnomAD3 genomes AF: 0.00000662 AC: 1AN: 151128Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000798 AC: 2AN: 250780Hom.: 0 AF XY: 0.00000738 AC XY: 1AN XY: 135552
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1460614Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 726646
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GnomAD4 genome AF: 0.00000662 AC: 1AN: 151128Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 73724
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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 submitter | clinical testing | Ambry Genetics | Sep 14, 2022 | The c.68C>T (p.T23I) alteration is located in exon 2 (coding exon 2) of the SGCZ gene. This alteration results from a C to T substitution at nucleotide position 68, causing the threonine (T) at amino acid position 23 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;D
REVEL
Benign
Sift
Uncertain
D;D
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MutPred
0.38
.;Gain of catalytic residue at L15 (P = 0.0223);
MVP
MPC
ClinPred
D
GERP RS
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at