12-121274274-T-G

Position:

• chr12-121274274-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001270485.2(CAMKK2):​c.253A>C​(p.Thr85Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T85S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CAMKK2 NM_001270485.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.550

Genes affected

CAMKK2 (HGNC:1470): (calcium/calmodulin dependent protein kinase kinase 2) The product of this gene belongs to the Serine/Threonine protein kinase family, and to the Ca(2+)/calmodulin-dependent protein kinase subfamily. The major isoform of this gene plays a role in the calcium/calmodulin-dependent (CaM) kinase cascade by phosphorylating the downstream kinases CaMK1 and CaMK4. Protein products of this gene also phosphorylate AMP-activated protein kinase (AMPK). This gene has its strongest expression in the brain and influences signalling cascades involved with learning and memory, neuronal differentiation and migration, neurite outgrowth, and synapse formation. Alternative splicing results in multiple transcript variants encoding distinct isoforms. The identified isoforms differ in their ability to undergo autophosphorylation and to phosphorylate downstream kinases. [provided by RefSeq, Jul 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07403609).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAMKK2	NM_001270485.2	c.253A>C	p.Thr85Pro	missense_variant	2/17	ENST00000404169.8	NP_001257414.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAMKK2	ENST00000404169.8	c.253A>C	p.Thr85Pro	missense_variant	2/17	1	NM_001270485.2	ENSP00000384600	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 50

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.056
BayesDel_addAF	Benign	-0.080	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	0.59
DANN	Benign	0.55
DEOGEN2	Benign	0.10	.;.;.;.;T;.;T;T;.;.;T;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.035	N
LIST_S2	Benign	0.42	T;T;T;.;.;T;.;T;T;T;T;T
M_CAP	Benign	0.055	D
MetaRNN	Benign	0.074	T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	0.0	N;N;N;N;N;N;N;N;N;N;.;.
MutationTaster	Benign	1.0	P;P;P;P;P;P;P;P;P
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	-0.19	N;N;N;N;N;N;N;N;N;N;N;N
REVEL	Benign	0.13
Sift	Benign	0.058	T;D;D;T;D;T;D;D;D;T;T;D
Sift4G	Benign	0.28	T;T;T;T;T;T;T;T;T;T;T;.
Polyphen		0.17	B;B;B;B;B;B;B;B;B;B;.;.
Vest4		0.13
MutPred		0.15		Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);Gain of catalytic residue at L83 (P = 0.0041);
MVP		0.61
MPC		0.47
ClinPred		0.043	T
GERP RS		-0.59
Varity_R		0.077
gMVP		0.21

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

LitVar

Other links and lift over

dbSNP: rs3817190; hg19: chr12-121712077;