9-127868063-C-G

Variant names:

• chr9-127868063-C-G
• rs201453879
• NM_000476.3:c.530G>C

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_000476.3(AK1):​c.530G>C​(p.Gly177Ala) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. G177D) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: AK1 NM_000476.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.61
• Publications: 0 publications found

Genes affected

AK1 (HGNC:361): (adenylate kinase 1) This gene encodes an adenylate kinase enzyme involved in energy metabolism and homeostasis of cellular adenine nucleotide ratios in different intracellular compartments. This gene is highly expressed in skeletal muscle, brain and erythrocytes. Certain mutations in this gene resulting in a functionally inadequate enzyme are associated with a rare genetic disorder causing nonspherocytic hemolytic anemia. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. This gene shares readthrough transcripts with the upstream ST6GALNAC6 gene. [provided by RefSeq, Jan 2022]

AK1 Gene-Disease associations (from GenCC):

• hemolytic anemia due to adenylate kinase deficiency

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

ENSG00000257524 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM1: In a binding_site (size 0) in uniprot entity KAD1_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2884394).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000476.3. 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
	AK1	NM_000476.3	MANE Select	c.530G>C	p.Gly177Ala	missense	Exon 7 of 7	NP_000467.1	P00568
	AK1	NM_001318122.2		c.578G>C	p.Gly193Ala	missense	Exon 6 of 6	NP_001305051.1	Q5T9B7
	AK1	NM_001318121.1		c.530G>C	p.Gly177Ala	missense	Exon 7 of 7	NP_001305050.1	Q6FGX9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AK1	ENST00000644144.2	MANE Select	c.530G>C	p.Gly177Ala	missense	Exon 7 of 7	ENSP00000494600.1	P00568
	ENSG00000257524	ENST00000646171.1		n.*563G>C		non_coding_transcript_exon	Exon 13 of 13	ENSP00000495484.1	A0A2R8YFX0
	ENSG00000257524	ENST00000646171.1		n.*563G>C		3_prime_UTR	Exon 13 of 13	ENSP00000495484.1	A0A2R8YFX0

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461806 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727210

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111958

Other (OTH) AF: 0.0000166 AC: 1 AN: 60386

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.014	T
BayesDel_noAF	Benign	-0.22
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.41	T
Eigen	Benign	-0.038
Eigen_PC	Benign	0.15
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-0.73	T
MutationAssessor	Benign	1.9	L
PhyloP100		4.6
PrimateAI	Uncertain	0.53	T
PROVEAN	Benign	-2.3	N
REVEL	Benign	0.21
Sift	Benign	0.14	T
Sift4G	Benign	0.52	T
Polyphen		0.014	B
Vest4		0.30
MutPred		0.38		Loss of methylation at K172 (P = 0.0801)
MVP		0.27
MPC		0.34
ClinPred		0.70	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.38
gMVP		0.62
Mutation Taster		=57/43	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: rs201453879; hg19: chr9-130630342; COSMIC: COSV108078563; COSMIC: COSV108078563;