KCNJ5 p.Gly164Gly

Variant names:

• chr11-128911762-G-G
• NM_000890.5:c.

Your query was ambiguous. Multiple possible variants found:

• chr11-128911763--
• chr11-128911765-G-T
• chr11-128911765-G-C
• chr11-128911765-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_000890.5(KCNJ5):​c. variant causes a exon region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: KCNJ5 NM_000890.5 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 10.0
• Publications: 0 publications found

Genes affected

KCNJ5 (HGNC:6266): (potassium inwardly rectifying channel subfamily J member 5) This gene encodes an integral membrane protein which belongs to one of seven subfamilies of inward-rectifier potassium channel proteins called potassium channel subfamily J. The encoded protein is a subunit of the potassium channel which is homotetrameric. It is controlled by G-proteins and has a greater tendency to allow potassium to flow into a cell rather than out of a cell. Naturally occurring mutations in this gene are associated with aldosterone-producing adenomas. [provided by RefSeq, Aug 2017]

KCNJ5 Gene-Disease associations (from GenCC):

• familial hyperaldosteronism type III

  Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae)
• Andersen-Tawil syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• long QT syndrome 13

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• long QT syndrome

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000890.5. 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
	KCNJ5	NM_000890.5	MANE Select	c.		exon_region	Exon 2 of 3	NP_000881.3
	KCNJ5	NM_001354169.2		c.		exon_region	Exon 3 of 4	NP_001341098.1	P48544

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCNJ5	ENST00000529694.6	TSL:1 MANE Select	c.		splice_donor intron	N/A	ENSP00000433295.1	P48544
	KCNJ5	ENST00000338350.4	TSL:1	c.		splice_donor intron	N/A	ENSP00000339960.4	P48544
	KCNJ5	ENST00000533599.1	TSL:1	c.		splice_donor intron	N/A	ENSP00000434266.1	P48544

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 59

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		10

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr11-128781657;