Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_006044.4(HDAC6):āc.3132A>Gā(p.Ile1044Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000604 in 1,208,169 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 237 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
HDAC6 (HGNC:14064): (histone deacetylase 6) Histones play a critical role in transcriptional regulation, cell cycle progression, and developmental events. Histone acetylation/deacetylation alters chromosome structure and affects transcription factor access to DNA. The protein encoded by this gene belongs to class II of the histone deacetylase/acuc/apha family. It contains an internal duplication of two catalytic domains which appear to function independently of each other. This protein possesses histone deacetylase activity and represses transcription. [provided by RefSeq, Jul 2008]
Computational evidence support a benign effect (MetaRNN=0.03717178).
BP6
Variant X-48823531-A-G is Benign according to our data. Variant chrX-48823531-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 445380.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Sep 25, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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not specified Uncertain:1
Jun 26, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The c.3132A>G (p.I1044M) alteration is located in exon 25 (coding exon 24) of the HDAC6 gene. This alteration results from a A to G substitution at nucleotide position 3132, causing the isoleucine (I) at amino acid position 1044 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -