MMP23B

matrix metallopeptidase 23B, the group of Immunoglobulin like domain containing|M10 matrix metallopeptidases

Basic information

Region (hg38): 1:1632163-1635263

Previous symbols: [ "MMP22" ]

Links

ENSG00000189409 ∙ NCBI:8510 ∙ OMIM:603321 ∙ HGNC:7171 ∙ Uniprot:O75900 ∙ 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 MMP23B gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the MMP23B 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						0
missense			15	2		17
nonsense				1		1
start loss						0
frameshift						0
inframe indel						0
splice donor/acceptor (+/-2bp)						0
splice region						0
non coding						0
Total	0	0	15	3	0

Variants in MMP23B

This is a list of pathogenic ClinVar variants found in the MMP23B region.

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

Position	Type	Phenotype	Significance	ClinVar
1-1632234-C-T		not specified	Likely benign (Aug 27, 2024)
1-1632241-C-T		not specified	Uncertain significance (Feb 02, 2022)
1-1632249-G-A		not specified	Uncertain significance (Dec 20, 2023)
1-1632258-G-A		not specified	Uncertain significance (Oct 20, 2024)
1-1632262-G-T		not specified	Uncertain significance (Dec 07, 2022)
1-1632264-G-A		not specified	Uncertain significance (Jan 20, 2023)
1-1632265-T-G		not specified	Uncertain significance (Apr 27, 2024)
1-1632276-T-C		not specified	Uncertain significance (Aug 20, 2024)
1-1632292-T-C		not specified	Uncertain significance (Feb 27, 2025)
1-1632324-C-G		not specified	Uncertain significance (May 25, 2022)
1-1632328-T-A		not specified	Uncertain significance (Dec 02, 2024)
1-1632333-C-G		not specified	Uncertain significance (Dec 22, 2023)
1-1632342-G-A		not specified	Uncertain significance (Mar 29, 2023)
1-1632351-G-A		not specified	Uncertain significance (Aug 02, 2023)
1-1634225-A-C		not specified	Uncertain significance (Sep 28, 2021)
1-1634254-C-T			Likely benign (Apr 01, 2024)
1-1634513-C-T		not specified	Uncertain significance (Jul 14, 2024)
1-1634539-G-A		not specified	Likely benign (May 23, 2023)
1-1634614-G-C		not specified	Uncertain significance (Nov 15, 2021)

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
MMP23B	protein_coding	protein_coding	ENST00000356026	8	3166

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p
0.117	0.621	0	0	0	0	0.00

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	0.538	35	45.2	0.775	0.00000322	2436
Missense in Polyphen		11	23.447	0.46915		1041
Synonymous	-0.384	23	20.8	1.11	0.00000138	842
Loss of Function	0.382	1	1.51	0.664	6.43e-8	170

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)	0.00	0.00
Middle Eastern	0.00	0.00
South Asian	0.00	0.00
Other	0.00	0.00

dbNSFP

Source: dbNSFP

• Function: FUNCTION: Protease. May regulate the surface expression of some potassium channels by retaining them in the endoplasmic reticulum (By similarity). {ECO:0000250}.
• Pathway: Matrix Metalloproteinases (Consensus)

Recessive Scores

• pRec: 0.162

Haploinsufficiency Scores

• ghis: 0.579

Essentials

• essential_gene_CRISPR: N
• essential_gene_CRISPR2: N
• essential_gene_gene_trap: N
• gene_indispensability_pred: N
• gene_indispensability_score: 0.239

Gene Damage Prediction

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

Mouse Genome Informatics

• Gene name: Mmp23

Zebrafish Information Network

• Gene name: mmp23bb
• Affected structure: liver
• Phenotype tag: abnormal
• Phenotype quality: decreased size