16-3483457-C-G

Position:

• chr16-3483457-C-G

Variant summary

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

The NM_001083601.3(NAA60):​c.432C>G​(p.Asn144Lys) 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.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NAA60 NM_001083601.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.11

Genes affected

NAA60 (HGNC:25875): (N-alpha-acetyltransferase 60, NatF catalytic subunit) This gene encodes an enzyme that localizes to the Golgi apparatus, where it transfers an acetyl group to the N-terminus of free proteins. This enzyme acts on histones, and its activity is important for chromatin assembly and chromosome integrity. Alternative splicing and the use of alternative promoters results in multiple transcript variants. The upstream promoter is located in a differentially methylated region (DMR) and undergoes imprinting; transcript variants originating from this position are expressed from the maternal allele. [provided by RefSeq, Nov 2015]

NAA60 (HGNC:):

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=0.13026652).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NAA60	NM_001083601.3	c.432C>G	p.Asn144Lys	missense_variant	6/8	ENST00000407558.9	NP_001077070.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NAA60	ENST00000407558.9	c.432C>G	p.Asn144Lys	missense_variant	6/8	1	NM_001083601.3	ENSP00000385903.4
NAA60	ENST00000424546.6	c.453C>G	p.Asn151Lys	missense_variant	5/7	2		ENSP00000401237.2
NAA60	ENST00000414063.6	c.432C>G	p.Asn144Lys	missense_variant	5/7	2		ENSP00000393224.2
NAA60	ENST00000360862.9	c.237C>G	p.Asn79Lys	missense_variant	4/6	2		ENSP00000354108.5
NAA60	ENST00000573580.5	c.237C>G	p.Asn79Lys	missense_variant	4/5	4		ENSP00000459055.1
NAA60	ENST00000572739.5	n.*71C>G		non_coding_transcript_exon_variant	4/5	4		ENSP00000461438.1
NAA60	ENST00000573345.5	n.*176C>G		non_coding_transcript_exon_variant	4/5	4		ENSP00000458717.1
NAA60	ENST00000572739.5	n.*71C>G		3_prime_UTR_variant	4/5	4		ENSP00000461438.1
NAA60	ENST00000573345.5	n.*176C>G		3_prime_UTR_variant	4/5	4		ENSP00000458717.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

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

Aug 01, 2024

The c.432C>G (p.N144K) alteration is located in exon 6 (coding exon 4) of the NAA60 gene. This alteration results from a C to G substitution at nucleotide position 432, causing the asparagine (N) at amino acid position 144 to be replaced by a lysine (K). 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	0.26
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	14
DANN	Benign	0.96
DEOGEN2	Benign	0.015	T;.;T;.;T;T;.;.;T;T;T
Eigen	Benign	-0.79
Eigen_PC	Benign	-0.60
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.92	.;D;.;.;.;.;.;D;.;.;D
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.13	T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.60	N;.;N;.;N;N;.;.;N;N;N
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	-0.90	N;N;.;.;.;.;N;.;N;.;.
REVEL	Benign	0.087
Sift	Benign	0.29	T;T;.;.;.;.;T;.;T;.;.
Sift4G	Benign	0.32	T;T;.;T;.;.;T;.;T;T;T
Polyphen		0.018	B;.;B;.;B;B;.;.;B;B;B
Vest4		0.65
MutPred		0.28		Gain of methylation at N144 (P = 0.0157);.;Gain of methylation at N144 (P = 0.0157);.;Gain of methylation at N144 (P = 0.0157);Gain of methylation at N144 (P = 0.0157);.;.;Gain of methylation at N144 (P = 0.0157);Gain of methylation at N144 (P = 0.0157);Gain of methylation at N144 (P = 0.0157);
MVP		0.043
MPC		0.39
ClinPred		0.44	T
GERP RS		2.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.56
gMVP		0.44

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: chr16-3533457;