Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2PP3PP5_Very_Strong
The NM_005993.5(TBCD):c.2314C>T(p.Arg772Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000203 in 1,575,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
TBCD (HGNC:11581): (tubulin folding cofactor D) Cofactor D is one of four proteins (cofactors A, D, E, and C) involved in the pathway leading to correctly folded beta-tubulin from folding intermediates. Cofactors A and D are believed to play a role in capturing and stabilizing beta-tubulin intermediates in a quasi-native confirmation. Cofactor E binds to the cofactor D/beta-tubulin complex; interaction with cofactor C then causes the release of beta-tubulin polypeptides that are committed to the native state. [provided by RefSeq, Jul 2008]
Verdict is Pathogenic. Variant got 11 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.817
PP5
Variant 17-82924992-C-T is Pathogenic according to our data. Variant chr17-82924992-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 268167.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.