2-191685706-A-G

Variant names:

• chr2-191685706-A-G
• NM_001031716.5:c.553A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001031716.5(NABP1):​c.553A>G​(p.Asn185Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: NABP1 NM_001031716.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.97
• Publications: 0 publications found

Genes affected

NABP1 (HGNC:26232): (nucleic acid binding protein 1) Single-stranded DNA (ssDNA)-binding proteins, such as OBFC2A, are ubiquitous and essential for a variety of DNA metabolic processes, including replication, recombination, and detection and repair of damage (Richard et al., 2008 [PubMed 18449195]).[supplied by OMIM, Jun 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09024805).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001031716.5. 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
	NABP1	NM_001031716.5	MANE Select	c.553A>G	p.Asn185Asp	missense	Exon 6 of 6	NP_001026886.1	Q96AH0-1
	NABP1	NM_001254736.3		c.313A>G	p.Asn105Asp	missense	Exon 6 of 6	NP_001241665.1	Q96AH0-2
	NABP1	NR_045622.3		n.672A>G		non_coding_transcript_exon	Exon 7 of 7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NABP1	ENST00000425611.9	TSL:1 MANE Select	c.553A>G	p.Asn185Asp	missense	Exon 6 of 6	ENSP00000403683.2	Q96AH0-1
	NABP1	ENST00000410026.7	TSL:1	c.313A>G	p.Asn105Asp	missense	Exon 6 of 6	ENSP00000387243.1	Q96AH0-2
	NABP1	ENST00000970387.1		c.547A>G	p.Asn183Asp	missense	Exon 6 of 6	ENSP00000640446.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461816 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727214

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.0000224 AC: 1 AN: 44712

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111974

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	17
DANN	Benign	0.41
DEOGEN2	Benign	0.025	T
Eigen	Benign	-0.63
Eigen_PC	Benign	-0.55
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.56	T
M_CAP	Benign	0.0056	T
MetaRNN	Benign	0.090	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		3.0
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.041
Sift	Benign	0.21	T
Sift4G	Benign	0.63	T
Polyphen		0.0050	B
Vest4		0.18
MutPred		0.16		Loss of MoRF binding (P = 0.0447)
MVP		0.46
MPC		0.12
ClinPred		0.084	T
GERP RS		3.0
Varity_R		0.070
gMVP		0.14
Mutation Taster		=96/4	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

hg19: chr2-192550432;