1-77518641-G-C

Position:

• chr1-77518641-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_174858.3(AK5):​c.1225G>C​(p.Glu409Gln) 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. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: AK5 NM_174858.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.27

Genes affected

AK5 (HGNC:365): (adenylate kinase 5) This gene encodes a member of the adenylate kinase family, which is involved in regulating the adenine nucleotide composition within a cell by catalyzing the reversible transfer of phosphate groups among adenine nucleotides. This member is related to the UMP/CMP kinase of several species. It is located in the cytosol and expressed exclusively in brain. Alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.33656096).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AK5	NM_174858.3	c.1225G>C	p.Glu409Gln	missense_variant	11/14	ENST00000354567.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AK5	ENST00000354567.7	c.1225G>C	p.Glu409Gln	missense_variant	11/14	1	NM_174858.3	P1
AK5	ENST00000344720.9	c.1147G>C	p.Glu383Gln	missense_variant	11/14	1
AK5	ENST00000530826.1	n.424G>C		non_coding_transcript_exon_variant	6/8	3
AK5	ENST00000527263.1	c.132+57G>C		intron_variant, NMD_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

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

Nov 07, 2022

The c.1225G>C (p.E409Q) alteration is located in exon 11 (coding exon 11) of the AK5 gene. This alteration results from a G to C substitution at nucleotide position 1225, causing the glutamic acid (E) at amino acid position 409 to be replaced by a glutamine (Q). 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	0.089
BayesDel_addAF	Benign	-0.037	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.32	T;.
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.098
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.94	D;D
M_CAP	Benign	0.033	D
MetaRNN	Benign	0.34	T;T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	1.4	L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.7	N;N
REVEL	Benign	0.22
Sift	Uncertain	0.0040	D;D
Sift4G	Benign	0.074	T;T
Polyphen		0.0030	B;.
Vest4		0.37
MutPred		0.55		Loss of disorder (P = 0.0832);.;
MVP		0.67
MPC		0.49
ClinPred		0.79	D
GERP RS		3.3
Varity_R		0.48
gMVP		0.58

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr1-77984326;