1-247037856-A-G

Position:

• chr1-247037856-A-G

Variant summary

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

The NM_033213.5(ZNF670):​c.763T>C​(p.Cys255Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,320 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ZNF670 NM_033213.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.51

Genes affected

ZNF670 (HGNC:28167): (zinc finger protein 670) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF670-ZNF695 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ZNF670	NM_033213.5	c.763T>C	p.Cys255Arg	missense_variant	4/4	ENST00000366503.3	NP_149990.1
ZNF670-ZNF695	NR_037894.2	n.219-37782T>C		intron_variant, non_coding_transcript_variant
ZNF670	NM_001204220.2	c.760T>C	p.Cys254Arg	missense_variant	4/4		NP_001191149.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ZNF670	ENST00000366503.3	c.763T>C	p.Cys255Arg	missense_variant	4/4	1	NM_033213.5	ENSP00000355459	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461320 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726938

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

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 04, 2023

The c.763T>C (p.C255R) alteration is located in exon 4 (coding exon 4) of the ZNF670 gene. This alteration results from a T to C substitution at nucleotide position 763, causing the cysteine (C) at amino acid position 255 to be replaced by an arginine (R). 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	Pathogenic	0.90
BayesDel_addAF	Uncertain	0.093	D
BayesDel_noAF	Benign	-0.10
CADD	Benign	22
DANN	Benign	0.97
DEOGEN2	Benign	0.32	T
Eigen	Uncertain	0.25
Eigen_PC	Benign	-0.098
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.18	T
M_CAP	Benign	0.0031	T
MetaRNN	Uncertain	0.70	D
MetaSVM	Uncertain	0.52	D
MutationAssessor	Pathogenic	4.0	H
MutationTaster	Benign	0.68	D
PrimateAI	Uncertain	0.51	T
PROVEAN	Pathogenic	-12	D
REVEL	Benign	0.20
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.50
MutPred		0.65		Gain of MoRF binding (P = 0.0333);
MVP		0.81
MPC		0.30
ClinPred		1.0	D
GERP RS		0.64
Varity_R		0.29
gMVP		0.089

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs755187559; hg19: chr1-247201158;