Genopathy
Gene-Disorder Association · Article
Gene
PPP1R21
Protein Phosphatase 1 Regulatory Subunit 21
Disorder
Neurodevelopmental Disorder With Hypotonia, Facial Dysmorphism, And Brain Abnormalities
First reported 2023
Supporting publications 7
Key publication · gene–disorder A Homozygous PPP1R21 Splice Variant Associated with Severe Developmental Delay, Absence of Speech, and Muscle Weakness Leads to Activated Proteasome Function.Molecular neurobiology · 2023
Key publication · disorder Expanding the genetic heterogeneity of intellectual disability.Human genetics · 2017
Manually curated
Association Review

In brief

The association between PPP1R21 (Protein Phosphatase 1 Regulatory Subunit 21) and Neurodevelopmental Disorder With Hypotonia, Facial Dysmorphism, And Brain Abnormalities is well established and manually curated, with its 2 contributing sources — 2 of them expert-curated — recording a known molecular basis and likely-pathogenic variants.

Sources 2
Clinical variants 22
Symptoms 99
Compounds 0
Trials 0
Publications 7
01
At a glance

Association overview

A cited synthesis of the gene–disorder association, with a clinical-actionability summary where the evidence supports one.

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02
Provenance

Evidence and sources

2 sources

Every contributing database and publication behind this association, with evidence type, strength, accessions and deep links.

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03
PPP1R21

The gene

1 source summary

A gene summary alongside the source descriptions it was distilled from.

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04
Neurodevelopmental Disorder With Hypotonia, Facial Dysmorphism, And Brain Abnormalities

The disorder

5 database identifiers

The disorder’s summary, prevalence, aliases and cross-reference identifiers (OMIM, Orphanet, MONDO, ICD-10, MedGen).

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05
Phenotype

Clinical features

60 clinical features

The disorder’s clinical features (HPO) grouped by body system, each with observed frequency and penetrance.

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06
ClinVar and variant evidence

Genetic basis

22 clinical variants

ClinVar variants reported for this pair, with disorder-specific significance, review status, molecular consequence and origin.

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07
Mechanism overlap

Shared mechanisms

Biological pathways and phenotype concepts shared by the gene and the disorder, with supporting publications.

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08
Literature

Reading

7 publications

Publications linking the gene and the disorder, with title, authors, journal, year and citation metrics.

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09
Provenance

References & sources

11 references

Every source and publication cited across this dossier, as one numbered reference list.

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