KCNG2

potassium voltage-gated channel modifier subfamily G member 2, the group of Potassium voltage-gated channels

Basic information

Region (hg38): 18:79797938-79900184

Links

ENSG00000178342 ∙ NCBI:26251 ∙ OMIM:605696 ∙ HGNC:6249 ∙ Uniprot:Q9UJ96 ∙ AlphaFold ∙ GenCC ∙ jax ∙ Sfari ∙ GnomAD ∙ Pubmed ∙ ClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the KCNG2 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the KCNG2 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type	Pathogenic	Likely pathogenic	VUS	Likely benign	Benign	Sum
synonymous				2		2
missense			40	2		42
nonsense						0
start loss						0
frameshift						0
inframe indel						0
splice donor/acceptor (+/-2bp)						0
splice region						0
non coding						0
Total	0	0	40	4	0

Variants in KCNG2

This is a list of pathogenic ClinVar variants found in the KCNG2 region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position	Type	Phenotype	Significance	ClinVar
18-79863701-G-A		not specified	Uncertain significance (Apr 26, 2024)
18-79863714-C-T		not specified	Uncertain significance (Apr 06, 2023)
18-79863716-C-T		not specified	Uncertain significance (Dec 03, 2021)
18-79863717-G-A		not specified	Uncertain significance (Jun 05, 2023)
18-79863758-G-A		not specified	Uncertain significance (Jun 24, 2022)
18-79863763-G-C		not specified	Uncertain significance (Dec 14, 2021)
18-79863774-C-T		not specified	Uncertain significance (Jul 27, 2021)
18-79863815-C-G		not specified	Uncertain significance (Oct 25, 2022)
18-79863857-G-C		not specified	Uncertain significance (Apr 13, 2022)
18-79863935-C-T			Likely benign (Oct 01, 2022)
18-79863947-C-T		not specified	Uncertain significance (Mar 29, 2023)
18-79863984-C-A		not specified	Uncertain significance (Jan 18, 2022)
18-79863995-A-G		not specified	Uncertain significance (May 18, 2023)
18-79864008-G-A		not specified	Uncertain significance (Apr 07, 2023)
18-79864024-C-T			Likely benign (Oct 01, 2022)
18-79864079-A-G		not specified	Likely benign (Mar 07, 2024)
18-79864109-C-G		not specified	Uncertain significance (Nov 07, 2023)
18-79864206-C-T		not specified	Uncertain significance (Jun 28, 2023)
18-79864211-G-A		not specified	Uncertain significance (Jul 27, 2021)
18-79864215-C-G		not specified	Uncertain significance (Jun 03, 2022)
18-79864274-C-T		not specified	Uncertain significance (Sep 26, 2023)
18-79899089-G-A		not specified	Uncertain significance (May 01, 2022)
18-79899091-G-A		not specified	Uncertain significance (Apr 27, 2022)
18-79899136-G-A		not specified	Uncertain significance (Jan 04, 2022)
18-79899197-C-T		not specified	Uncertain significance (Jan 26, 2022)

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
KCNG2	protein_coding	protein_coding	ENST00000316249	2	36517

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p
0.602	0.390	122852	0	2	122854	0.00000814

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	1.75	185	265	0.698	0.0000222	2850
Missense in Polyphen		65	106.64	0.6095		1103
Synonymous	-0.527	144	136	1.06	0.0000127	1069
Loss of Function	2.13	1	7.12	0.140	3.39e-7	88

LoF frequencies by population

Ethnicity	Sum of pLOFs	p
African & African-American	0.00	0.00
Ashkenazi Jewish	0.00	0.00
East Asian	0.00	0.00
Finnish	0.00	0.00
European (Non-Finnish)	0.0000110	0.00000894
Middle Eastern	0.00	0.00
South Asian	0.0000329	0.0000328
Other	0.00	0.00

dbNSFP

Source: dbNSFP

• Function: FUNCTION: Potassium channel subunit. Modulates channel activity by shifting the threshold and the half-maximal activation to more negative values.
• Pathway: Neuronal System;Voltage gated Potassium channels;Potassium Channels (Consensus)

Recessive Scores

• pRec: 0.135

Haploinsufficiency Scores

• pHI: 0.0723
• hipred: N
• hipred_score: 0.272
• ghis: 0.537

Essentials

• essential_gene_CRISPR: N
• essential_gene_CRISPR2: N
• essential_gene_gene_trap: N
• gene_indispensability_pred: E
• gene_indispensability_score: 0.751

Gene Damage Prediction

	All	Recessive	Dominant
Mendelian	Medium	Medium	Medium
Primary Immunodeficiency	Medium	Medium	High
Cancer	Medium	Medium	Medium

Mouse Genome Informatics

• Gene name: Kcng2

Gene ontology

• Biological process: potassium ion transport;regulation of heart contraction;regulation of ion transmembrane transport;regulation of insulin secretion;protein homooligomerization;potassium ion transmembrane transport
• Cellular component: plasma membrane;voltage-gated potassium channel complex;integral component of membrane;extracellular exosome
• Molecular function: voltage-gated potassium channel activity;delayed rectifier potassium channel activity