chr9-135815942-G-C

Position:

• chr9-135815942-G-C

Variant summary

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

The NM_015447.4(CAMSAP1):​c.4335C>G​(p.Asp1445Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CAMSAP1 NM_015447.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.12

Genes affected

CAMSAP1 (HGNC:19946): (calmodulin regulated spectrin associated protein 1) Enables microtubule minus-end binding activity and spectrin binding activity. Involved in several processes, including neuron projection development; regulation of cell morphogenesis; and regulation of microtubule polymerization. Located in microtubule. Colocalizes with microtubule minus-end. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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
CAMSAP1	NM_015447.4	c.4335C>G	p.Asp1445Glu	missense_variant	15/17	ENST00000389532.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CAMSAP1	ENST00000389532.9	c.4335C>G	p.Asp1445Glu	missense_variant	15/17	5	NM_015447.4	P2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 07, 2024

The c.4335C>G (p.D1445E) alteration is located in exon 15 (coding exon 15) of the CAMSAP1 gene. This alteration results from a C to G substitution at nucleotide position 4335, causing the aspartic acid (D) at amino acid position 1445 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	Pathogenic	0.65
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.43	T;.;.
Eigen	Uncertain	0.29
Eigen_PC	Benign	0.22
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.78	T;T;T
M_CAP	Benign	0.033	D
MetaRNN	Uncertain	0.56	D;D;D
MetaSVM	Benign	-0.92	T
MutationAssessor	Uncertain	2.9	M;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.72	T
PROVEAN	Uncertain	-3.4	D;D;D
REVEL	Benign	0.13
Sift	Uncertain	0.0020	D;D;D
Sift4G	Uncertain	0.0060	D;D;D
Polyphen		0.99	D;.;D
Vest4		0.65
MutPred		0.19		Gain of MoRF binding (P = 0.1267);.;.;
MVP		0.48
MPC		1.6
ClinPred		0.97	D
GERP RS		3.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.54
gMVP		0.42

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: chr9-138707788;