12-49272949-C-G

Position:

• chr12-49272949-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_032704.5(TUBA1C):​c.1072C>G​(p.Gln358Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TUBA1C NM_032704.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.57

Genes affected

TUBA1C (HGNC:20768): (tubulin alpha 1c) Predicted to enable GTP binding activity. Predicted to be a structural constituent of cytoskeleton. Predicted to be involved in microtubule cytoskeleton organization and mitotic cell cycle. Located in microtubule cytoskeleton and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, TUBA1C
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.745

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TUBA1C	NM_032704.5	c.1072C>G	p.Gln358Glu	missense_variant	4/4	ENST00000301072.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TUBA1C	ENST00000301072.11	c.1072C>G	p.Gln358Glu	missense_variant	4/4	1	NM_032704.5	P1
	ENST00000550468.2	n.358G>C		non_coding_transcript_exon_variant	1/2	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 32

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

Aug 08, 2022

The c.1072C>G (p.Q358E) alteration is located in exon 4 (coding exon 4) of the TUBA1C gene. This alteration results from a C to G substitution at nucleotide position 1072, causing the glutamine (Q) at amino acid position 358 to be replaced by a glutamic acid (E). 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	Uncertain	0.51
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.10
CADD	Uncertain	24
DANN	Benign	0.94
DEOGEN2	Benign	0.37	T;T;.
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.84	T;T;T
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.75	D;D;D
MetaSVM	Uncertain	-0.11	T
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	-2.1	N;N;.
REVEL	Pathogenic	0.77
Sift	Uncertain	0.010	D;D;.
Sift4G	Benign	0.095	T;T;.
Polyphen		0.094	B;B;.
Vest4		0.80
MutPred		0.62		Gain of catalytic residue at V433 (P = 0);.;.;
MVP		0.94
MPC		2.5
ClinPred		0.90	D
GERP RS		4.9
RBP_binding_hub_radar		1.1
RBP_regulation_power_radar		4.9
Varity_R		0.53
gMVP		0.90

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-49666732;