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intellectual disability, X-linked 89 (MRX89) - Clinical Profile, Genes & Research | Kisho | Kisho

Rare Disease

intellectual disability, X-linked 89

MONDO:0010450

Also known as:MRX89mental retardation, X-linked 89, X-linked dominantmental retardation, X-linked 89

Overview

GeneticsX-linked

Clinical Presentation

Built from Human Phenotype Ontology (HPO) phenotype annotations and GeneReviews clinical descriptions. Features represent findings documented across known cases — not an exhaustive list of possible symptoms.

Features include sometimes findings: Generalized myoclonic seizure. 4 total HPO annotations.

Organ System	Phenotype Count	Example Features
Brain and nerves	4	Delayed speech and language development, Generalized myoclonic seizure, Global developmental delay

Explore clinical features

Diagnosis

Biomarker and diagnostic research for intellectual disability, X-linked 89 has been reported in the published literature.

Research Landscape

Sourced from ClinicalTrials.gov and PubMed. Publication types are classified using NLM-curated article metadata; research type breakdowns reflect the nature of published work for this disease.

No clinical trials have been registered for intellectual disability, X-linked 89.

16 publications have been identified in PubMed for intellectual disability, X-linked 89. Research spans Epidemiology / Natural History (38%), Diagnostic / Biomarker (13%), and Review / Meta-Analysis (13%).

Research Type	Count	% of Total
Disease patterns and progression	6	38%

Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 7:49 AM UTC

MONDOHPOClinicalTrials.govFDAPubMedHGNCClinVarClinGenGeneReviewsOrphanetOMIMRUSP

Medical References

External Resources

OMIM

Online Mendelian Inheritance in Man

OMIM:300848

GARD

Genetic and Rare Diseases Info Center

GARD:22688

Questions for Your Care Team

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intellectual disability, X-linked 89

Overview

Clinical Presentation

Explore clinical features

Diagnosis

Research Landscape

Medical References

External Resources

OMIM

GARD

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Questions for Your Care Team

Questions for Your Care Team

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