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Understanding the Signs

Signs & Symptoms of HNRNP-RNDDs

The HNRNP-RNDDs are distinct disorders with overlapping clinical traits. As they have similar mechanisms of disease, it is likely that there are shared therapeutic strategies to uncover.

Issac Soul at the 2024 HNRNP conference

Issac Soul, who has HNRNPQ-NDD or SYNCRIP, multitasking at 2024 conference

What Makes HNRNP Disorders Unique

Understanding the rarity and scope of these conditions

10+

Known Disorders

At least 10 HNRNP-RNDDs have been identified, and that number continues to grow as research advances.

~700

Documented Cases

Only about 700 cases exist worldwide, making these conditions extremely rare.

Stronger Together

Collective Impact

Individually extremely rare, but together we overcome our extremely rare status to advance research.

What is a Rare Disease?

A disease diagnosed in less than 200,000 individuals in the US, or less than 1 in 2,000 individuals globally.

What is an Extremely Rare Disease?

A disease diagnosed in less than 1 in 50,000 individuals. Each HNRNP-RNDD falls into this category.

Common Signs & Symptoms

Scroll to explore how common each symptom is across all studied HNRNP disorders.

95%
have developmental delay/intellectual disability

of patients experience this symptom

Data from Gillentine et al., 2023 and ongoing studies

95%have developmental delay/intellectual disability01
71%have speech and language delay and/or difficulties02
57%have seizures03
55%have motor skills delay04
60%have behavioral differences, including autism spectrum disorder, ADHD, and anxiety05
40%have differences in brain structure06
59%have hypotonia07
36%have skeletal differences such as scoliosis and hand/feet anomalies08
44%have vision and/or eye problems09
65%have distinct facial features, although they vary by HNRNP-RNDD10
01
10
Scroll to explore

Individual HNRNP-RNDDs

Each disorder has its own unique features. Click to learn more about specific conditions.

New to HNRNP disorders?Start with the basics

HNRNPC-RNDD

Gene: HNRNPC

HNRNPC-RNDD was first described in 2023. While other members of the HNRNP gene family were already linked to neurodevelo...

Autosomal Dominant18 cases
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PTBP1-RNDD

Gene: PTBP1

PTBP-related neurodevelopmental disorder (also called PTBP1-RNDD) is a rare genetic condition caused by changes in the P...

Autosomal Dominant27 cases
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HNRNPG-RNDD

Gene: RBMX

Two disorders have been described related to changes in the RBMX gene: Shashi-type intellectual disability and Gustavson...

X-Linked20 cases
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HNRNPH1-RNDD

Gene: HNRNPH1

HNRNPH1-RNDD was first described in 2018. While at first considered a type of Bain type intellectual disability (due to ...

Autosomal Dominant47 cases
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HNRNPH2-RNDD

Gene: HNRNPH2

HNRNPH2-RNDD was first described in 2016. Variants in HNRNPH2 on the X chromosome are associated with a neurodevelopment...

X-Linked174 cases
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Au-Kline Syndrome

Gene: HNRNPK

HNRNPK-related neurodevelopmental disorder, also called Au-Kline syndrome (AKS), is a rare genetic condition that affect...

Autosomal Dominant85 cases
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HNRNPR-RNDD

Gene: HNRNPR

HNRNPR-RNDD is a rare genetic condition that affects how a child grows, learns, and develops. Most individuals with this...

Autosomal Dominant38 cases
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HNRNPU-RNDD

Gene: HNRNPU

HNRNPU-related neurodevelopmental disorder is a rare genetic condition that affects how a child grows, learns, and devel...

Autosomal Dominant300 cases
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SYNCRIP-RNDD

Gene: SYNCRIP

SYNCRIP-related neurodevelopmental disorder (also called HNRNPQ-RNDD) is a rare genetic condition caused by changes in t...

Autosomal Dominant45 cases
Learn More →