12-119690312-G-A

Position:

• chr12-119690312-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001206999.2(CIT):​c.6025C>T​(p.Arg2009Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000485 in 1,442,020 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000049 (0 hom.)
• Consequence: CIT NM_001206999.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.22

Genes affected

CIT (HGNC:1985): (citron rho-interacting serine/threonine kinase) This gene encodes a serine/threonine-protein kinase that functions in cell division. Together with the kinesin KIF14, this protein localizes to the central spindle and midbody, and functions to promote efficient cytokinesis. This protein is involved in central nervous system development. Polymorphisms in this gene are associated with bipolar disorder and risk for schizophrenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CIT. . Gene score misZ 3.8214 (greater than the threshold 3.09). Trascript score misZ 5.1629 (greater than threshold 3.09). GenCC has associacion of gene with microcephaly 11, primary, autosomal recessive, microcephaly 17, primary, autosomal recessive, autosomal recessive primary microcephaly.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CIT	NM_001206999.2	c.6025C>T	p.Arg2009Cys	missense_variant	47/48	ENST00000392521.7	NP_001193928.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CIT	ENST00000392521.7	c.6025C>T	p.Arg2009Cys	missense_variant	47/48	1	NM_001206999.2	ENSP00000376306.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000485 AC: 7 AN: 1442020 Hom.: 0 Cov.: 31 AF XY: 0.00000279 AC XY: 2 AN XY: 717930

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000254

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000451

Gnomad4 OTH exome AF: 0.0000167

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Sep 06, 2019

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Reliable data not available from control populations to assess the frequency of this variant; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.36	.;T
Eigen	Pathogenic	0.79
Eigen_PC	Pathogenic	0.78
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D;D
M_CAP	Benign	0.032	D
MetaRNN	Uncertain	0.68	D;D
MetaSVM	Uncertain	0.024	D
MutationAssessor	Benign	0.97	.;L
PrimateAI	Pathogenic	0.90	D
PROVEAN	Benign	-1.4	N;N
REVEL	Uncertain	0.39
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	.;D
Vest4		0.84
MutPred		0.25		.;Gain of ubiquitination at K1970 (P = 0.0212);
MVP		0.87
MPC		1.9
ClinPred		0.76	D
GERP RS		5.5
Varity_R		0.44
gMVP		0.40

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: rs1486690726; hg19: chr12-120128117; COSMIC: COSV55859145; COSMIC: COSV55859145;