NM_001330071.2:c.65G>T

Variant names:

• chr13-36126073-C-A
• rs758430190
• NM_001330071.2:c.65G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001330071.2(DCLK1):​c.65G>T​(p.Ser22Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DCLK1 NM_001330071.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.00
• Publications: 0 publications found

Genes affected

DCLK1 (HGNC:2700): (doublecortin like kinase 1) This gene encodes a member of the protein kinase superfamily and the doublecortin family. The protein encoded by this gene contains two N-terminal doublecortin domains, which bind microtubules and regulate microtubule polymerization, a C-terminal serine/threonine protein kinase domain, which shows substantial homology to Ca2+/calmodulin-dependent protein kinase, and a serine/proline-rich domain in between the doublecortin and the protein kinase domains, which mediates multiple protein-protein interactions. The microtubule-polymerizing activity of the encoded protein is independent of its protein kinase activity. The encoded protein is involved in several different cellular processes, including neuronal migration, retrograde transport, neuronal apoptosis and neurogenesis. This gene is up-regulated by brain-derived neurotrophic factor and associated with memory and general cognitive abilities. Multiple transcript variants generated by two alternative promoter usage and alternative splicing have been reported, but the full-length nature and biological validity of some variants have not been defined. These variants encode different isoforms, which are differentially expressed and have different kinase activities.[provided by RefSeq, Sep 2010]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2297405).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001330071.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCLK1	NM_001330071.2	MANE Select	c.65G>T	p.Ser22Ile	missense	Exon 2 of 17	NP_001317000.1	O15075-1
	DCLK1	NM_001330072.2		c.65G>T	p.Ser22Ile	missense	Exon 2 of 17	NP_001317001.1	O15075-1
	DCLK1	NM_004734.5		c.65G>T	p.Ser22Ile	missense	Exon 2 of 18	NP_004725.1	O15075-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCLK1	ENST00000360631.8	TSL:5 MANE Select	c.65G>T	p.Ser22Ile	missense	Exon 2 of 17	ENSP00000353846.3	O15075-1
	DCLK1	ENST00000255448.8	TSL:1	c.65G>T	p.Ser22Ile	missense	Exon 2 of 18	ENSP00000255448.4	O15075-2
	DCLK1	ENST00000879266.1		c.65G>T	p.Ser22Ile	missense	Exon 2 of 17	ENSP00000549325.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460260 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726534

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26108

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86210

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52000

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111914

Other (OTH) AF: 0.0000166 AC: 1 AN: 60378

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Benign	-0.33
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.27	T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-0.44	T
MutationAssessor	Benign	0.69	N
PhyloP100		3.0
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.081
Sift	Benign	0.057	T
Sift4G	Benign	0.070	T
Polyphen		0.91	P
Vest4		0.21
MutPred		0.22		Loss of disorder (P = 0.0107)
MVP		0.53
MPC		1.4
ClinPred		0.74	D
GERP RS		5.7
Varity_R		0.16
gMVP		0.67
Mutation Taster		=63/37	polymorphism

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

Other links and lift over

dbSNP: rs758430190; hg19: chr13-36700210;