NM_153757.4:c.99G>A

Variant names:

• chr4-88697656-C-T
• rs546717344
• NM_153757.4:c.99G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_153757.4(NAP1L5):​c.99G>A​(p.Gln33Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000034 (0 hom.)
• Consequence: NAP1L5 NM_153757.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.973
• Publications: 0 publications found

Genes affected

NAP1L5 (HGNC:19968): (nucleosome assembly protein 1 like 5) This gene encodes a protein that shares sequence similarity to nucleosome assembly factors, but may be localized to the cytoplasm rather than the nucleus. Expression of this gene is downregulated in hepatocellular carcinomas. This gene is located within a differentially methylated region (DMR) and is imprinted and paternally expressed. There is a related pseudogene on chromosome 4. [provided by RefSeq, Nov 2015]

HERC3 (HGNC:4876): (HECT and RLD domain containing E3 ubiquitin protein ligase 3) This gene encodes a member the HERC ubiquitin ligase family. The encoded protein is located in the cytosol and binds ubiquitin via a HECT domain. Mutations in this gene have been associated with colorectal and gastric carcinomas. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Oct 2012]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP7: Synonymous conserved (PhyloP=0.973 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153757.4. 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
	NAP1L5	NM_153757.4	MANE Select	c.99G>A	p.Gln33Gln	synonymous	Exon 1 of 1	NP_715638.1	Q96NT1
	HERC3	NM_014606.3	MANE Select	c.2658-6442C>T		intron	N/A	NP_055421.1	Q15034-1
	HERC3	NM_001375480.1		c.2655-6442C>T		intron	N/A	NP_001362409.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAP1L5	ENST00000323061.7	TSL:6 MANE Select	c.99G>A	p.Gln33Gln	synonymous	Exon 1 of 1	ENSP00000320488.5	Q96NT1
	HERC3	ENST00000402738.6	TSL:1 MANE Select	c.2658-6442C>T		intron	N/A	ENSP00000385684.1	Q15034-1
	HERC3	ENST00000512194.2	TSL:5	c.2634-6442C>T		intron	N/A	ENSP00000421021.2	H0Y8G9

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152150 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000362 AC: 9 AN: 248726 AF XY: 0.0000296

Gnomad AFR exome AF: 0.0000644

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000532

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000335 AC: 49 AN: 1461152 Hom.: 0 Cov.: 30 AF XY: 0.0000330 AC XY: 24 AN XY: 726916

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39700

South Asian (SAS) AF: 0.0000348 AC: 3 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52714

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.0000360 AC: 40 AN: 1112002

Other (OTH) AF: 0.0000331 AC: 2 AN: 60392

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152268 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74434

African (AFR) AF: 0.0000241 AC: 1 AN: 41552

American (AMR) AF: 0.0000653 AC: 1 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5154

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.0000195 Hom.: 0

Bravo AF: 0.0000302

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	5.7
DANN	Benign	0.94
PhyloP100		0.97
PromoterAI		-0.097	Neutral
Mutation Taster		=100/0	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: rs546717344; hg19: chr4-89618807;