19-44235461-G-A

Position:

• chr19-44235461-G-A

Variant summary

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

The NM_182490.3(ZNF227):​c.1031G>A​(p.Arg344Lys) 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 1,461,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ZNF227 NM_182490.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.358

Genes affected

ZNF227 (HGNC:13020): (zinc finger protein 227) Predicted to enable DNA-binding transcription activator 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 act upstream of or within negative regulation of transcription, DNA-templated. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZNF235 (HGNC:12866): (zinc finger protein 235) This gene product belongs to the zinc finger protein superfamily, members of which are regulatory proteins characterized by nucleic acid-binding zinc finger domains. The encoded protein is a member of the Kruppel family of zinc finger proteins, and contains Kruppel-associated box (KRAB) A and B domains and 15 tandemly arrayed C2H2-type zinc fingers. It is an ortholog of the mouse Zfp93 protein. This gene is located in a cluster of zinc finger genes on 19q13.2. [provided by RefSeq, Jul 2008]

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=0.13465887).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ZNF227	NM_182490.3	c.1031G>A	p.Arg344Lys	missense_variant	6/6	ENST00000313040.12	NP_872296.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ZNF227	ENST00000313040.12	c.1031G>A	p.Arg344Lys	missense_variant	6/6	1	NM_182490.3	ENSP00000321049.6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461784 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 727182

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

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

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

Jun 02, 2023

The c.1031G>A (p.R344K) alteration is located in exon 6 (coding exon 4) of the ZNF227 gene. This alteration results from a G to A substitution at nucleotide position 1031, causing the arginine (R) at amino acid position 344 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	Pathogenic	0.69
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.052	.;T;T;.
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.23
FATHMM_MKL	Benign	0.32	N
LIST_S2	Benign	0.70	T;T;.;.
M_CAP	Benign	0.0017	T
MetaRNN	Benign	0.13	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.13	.;N;N;.
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-1.1	N;.;N;.
REVEL	Benign	0.070
Sift	Benign	0.29	T;.;T;.
Sift4G	Benign	0.26	T;T;T;T
Polyphen		0.70	.;P;P;.
Vest4		0.28
MutPred		0.64		.;Gain of ubiquitination at R344 (P = 0.0238);Gain of ubiquitination at R344 (P = 0.0238);.;
MVP		0.25
MPC		0.49
ClinPred		0.29	T
GERP RS		3.7
Varity_R		0.14
gMVP		0.13

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: chr19-44739614;