chr6-44172340-A-T

Position:

• chr6-44172340-A-T

Variant summary

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

The NM_007058.4(CAPN11):​c.448A>T​(p.Thr150Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000213 in 1,407,982 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CAPN11 NM_007058.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.28

Genes affected

CAPN11 (HGNC:1478): (calpain 11) Calpains constitute a family of intracellular calcium-dependent cysteine proteases. There are eight members in this superfamily. They consist of a variable 80 kDa subunit and an invariant 30 kDa subunit. This calpain protein appears to have protease activity and calcium-binding ability. A similar mouse protein may play a functional role in spermatogenesis and in the regulation of calcium-dependent signal transduction events during meiosis. [provided by RefSeq, Dec 2008]

POLR1C (HGNC:20194): (RNA polymerase I and III subunit C) The protein encoded by this gene is a subunit of both RNA polymerase I and RNA polymerase III complexes. The encoded protein is part of the Pol core element. Mutations in this gene have been associated with Treacher Collins syndrome (TCS) and hypomyelinating leukodystrophy 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

CAPN11 (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=0.2105017).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPN11	NM_007058.4	c.448A>T	p.Thr150Ser	missense_variant	5/23	ENST00000398776.2	NP_008989.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAPN11	ENST00000398776.2	c.448A>T	p.Thr150Ser	missense_variant	5/23	1	NM_007058.4	ENSP00000381758.1
CAPN11	ENST00000532171.5	c.538A>T	p.Thr180Ser	missense_variant	6/6	4		ENSP00000432420.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000213 AC: 3 AN: 1407982 Hom.: 0 Cov.: 31 AF XY: 0.00000288 AC XY: 2 AN XY: 695370

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: 0.00000277

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000874 AC: 1

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

Nov 21, 2023

The c.448A>T (p.T150S) alteration is located in exon 5 (coding exon 5) of the CAPN11 gene. This alteration results from a A to T substitution at nucleotide position 448, causing the threonine (T) at amino acid position 150 to be replaced by a serine (S). 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	0.092
BayesDel_addAF	Uncertain	0.027	T
BayesDel_noAF	Benign	-0.20
CADD	Benign	15
DANN	Uncertain	0.98
DEOGEN2	Benign	0.027	.;T
Eigen	Benign	-0.76
Eigen_PC	Benign	-0.79
FATHMM_MKL	Benign	0.088	N
LIST_S2	Benign	0.38	T;T
M_CAP	Benign	0.038	D
MetaRNN	Benign	0.21	T;T
MetaSVM	Uncertain	-0.22	T
MutationAssessor	Benign	0.70	.;N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-1.8	N;N
REVEL	Benign	0.28
Sift	Benign	0.087	T;D
Sift4G	Benign	0.17	T;D
Polyphen		0.14	.;B
Vest4		0.23
MutPred		0.53		.;Loss of helix (P = 0.1299);
MVP		0.83
MPC		0.11
ClinPred		0.14	T
GERP RS		0.35
Varity_R		0.29
gMVP		0.47

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

Other links and lift over

dbSNP: rs747688113; hg19: chr6-44140077;