4-77165821-T-G

Variant names:

• chr4-77165821-T-G
• rs201736578
• NM_004354.3:c.932T>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_004354.3(CCNG2):​c.932T>G​(p.Met311Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000999 in 1,601,378 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M311K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000097 (0 hom.)
• Consequence: CCNG2 NM_004354.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.99
• Publications: 0 publications found

Genes affected

CCNG2 (HGNC:1593): (cyclin G2) The eukaryotic cell cycle is governed by cyclin-dependent protein kinases (CDKs) whose activities are regulated by cyclins and CDK inhibitors. The 8 species of cyclins reported in mammals, cyclins A through H, share a conserved amino acid sequence of about 90 residues called the cyclin box. The amino acid sequence of cyclin G is well conserved among mammals. The nucleotide sequence of cyclin G1 and cyclin G2 are 53% identical. Unlike cyclin G1, cyclin G2 contains a C-terminal PEST protein destabilization motif, suggesting that cyclin G2 expression is tightly regulated through the cell cycle. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAdExome4 at 14 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004354.3. 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
	CCNG2	NM_004354.3	MANE Select	c.932T>G	p.Met311Arg	missense	Exon 8 of 8	NP_004345.1	Q16589-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCNG2	ENST00000316355.10	TSL:1 MANE Select	c.932T>G	p.Met311Arg	missense	Exon 8 of 8	ENSP00000315743.5	Q16589-1
	CCNG2	ENST00000395640.5	TSL:1	c.932T>G	p.Met311Arg	missense	Exon 7 of 7	ENSP00000379002.1	Q16589-1
	CCNG2	ENST00000497512.5	TSL:1	n.1193+1342T>G		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152228 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000833 AC: 2 AN: 240100 AF XY: 0.0000154

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000181

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000966 AC: 14 AN: 1449032 Hom.: 0 Cov.: 29 AF XY: 0.00000971 AC XY: 7 AN XY: 720826

African (AFR) AF: 0.00 AC: 0 AN: 32624

American (AMR) AF: 0.00 AC: 0 AN: 41192

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25702

East Asian (EAS) AF: 0.00 AC: 0 AN: 39282

South Asian (SAS) AF: 0.00 AC: 0 AN: 83732

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53092

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5716

European-Non Finnish (NFE) AF: 0.0000117 AC: 13 AN: 1107892

Other (OTH) AF: 0.0000167 AC: 1 AN: 59800

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152346 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74490

African (AFR) AF: 0.00 AC: 0 AN: 41576

American (AMR) AF: 0.0000653 AC: 1 AN: 15310

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.0000282 Hom.: 0

Bravo AF: 0.0000189

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Benign	-0.095	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	21
DANN	Uncertain	0.98
DEOGEN2	Benign	0.14	T
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.52
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.029	D
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		4.0
PrimateAI	Uncertain	0.61	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.12
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0050	D
Polyphen		0.99	D
Vest4		0.59
MutPred		0.28		Gain of solvent accessibility (P = 0.1133)
MVP		0.33
MPC		0.40
ClinPred		0.50	T
GERP RS		5.4
Varity_R		0.87
gMVP		0.78
Mutation Taster		=10/90	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs201736578; hg19: chr4-78086974;