11-113394998-C-G

Position:

• chr11-113394998-C-G

Variant summary

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

The NM_178510.2(ANKK1):​c.550C>G​(p.Leu184Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ANKK1 NM_178510.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.726

Genes affected

ANKK1 (HGNC:21027): (ankyrin repeat and kinase domain containing 1) The protein encoded by this gene belongs to the Ser/Thr protein kinase family, and protein kinase superfamily involved in signal transduction pathways. This gene is closely linked to DRD2 gene (GeneID:1813) on chr 11, and a well studied restriction fragment length polymorphism (RFLP) designated TaqIA, was originally associated with the DRD2 gene, however, later was determined to be located in exon 8 of ANKK1 gene (PMIDs: 18621654, 15146457), where it causes a nonconservative amino acid substitution. It is not clear if this gene plays any role in neuropsychiatric disorders previously associated with Taq1A RFLP. [provided by RefSeq, Sep 2009]

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
ANKK1	NM_178510.2	c.550C>G	p.Leu184Val	missense_variant	3/8	ENST00000303941.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANKK1	ENST00000303941.4	c.550C>G	p.Leu184Val	missense_variant	3/8	1	NM_178510.2	P1
ANKK1	ENST00000542948.1	c.*104C>G		3_prime_UTR_variant, NMD_transcript_variant	3/5	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

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

May 03, 2023

The c.550C>G (p.L184V) alteration is located in exon 3 (coding exon 3) of the ANKK1 gene. This alteration results from a C to G substitution at nucleotide position 550, causing the leucine (L) at amino acid position 184 to be replaced by a valine (V). 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	Benign	0.10
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	18
DANN	Uncertain	1.0
DEOGEN2	Benign	0.061	T
Eigen	Benign	-0.018
Eigen_PC	Benign	-0.056
FATHMM_MKL	Benign	0.42	N
LIST_S2	Benign	0.71	T
M_CAP	Benign	0.0037	T
MetaRNN	Uncertain	0.43	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.13	N
MutationTaster	Benign	0.75	N
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.97	N
REVEL	Benign	0.13
Sift	Uncertain	0.018	D
Sift4G	Uncertain	0.044	D
Polyphen		0.98	D
Vest4		0.32
MutPred		0.65		Loss of stability (P = 0.0828);
MVP		0.21
MPC		0.13
ClinPred		0.67	D
GERP RS		4.4
Varity_R		0.14
gMVP		0.30

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: chr11-113265720;