raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1606

1p36 deletion syndrome

Synonyms: Del(1)(p36) · Deletion 1p36 · Deletion 1pter · Monosomy 1p36 · Monosomy 1pter · Subtelomeric 1p36 deletion

Type
Malformation syndrome
Group
Disorder
Inheritance
Multigenic/multifactorial, Not applicable
Age of onset
Antenatal, Neonatal
Status
active

A rare chromosomal anomaly characterized by distinctive facial dysmorphic features, hypotonia, developmental delay, intellectual disability, seizures, heart defects, poor/absent speech, and prenatal onset growth deficiency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
en1p36 deletion syndromeDel(1)(p36) · Deletion 1p36 · Deletion 1pter · Monosomy 1p36 · Monosomy 1pter · Subtelomeric 1p36 deletion
frSyndrome de délétion 1p36Del(1)(p36) · Délétion 1p36 · Délétion 1pter · Délétion subtélomérique 1p36 · Monosomie 1p36 · Monosomie 1pter
de1p36-DeletionssyndromDel(1)(p36) · Deletion 1p36 · Deletion 1pter · Monosomie 1p36 · Monosomie 1pter · Subtelomere 1p36-Deletion
esSíndrome de deleción 1p36Del(1)(p36) · Deleción 1p36 · Deleción 1pter · Deleción subtelomérica 1p36 · Monosomía 1p36 · Monosomía 1pter
itSindrome da delezione 1p36Del(1)(p36) · Delezione 1p36 · Delezione 1p36 subtelomerica · Delezione 1pter · Monosomia 1p36 · Monosomia 1pter
nl1p36-deletiesyndroomDel(1)(p36) · Deletie 1p36 · Deletie 1pter · Monosomie 1p36 · Monosomie 1pter · Subtelomerische 1p36-deletie
ptSíndrome de deleção 1p36Monossomia 1p36
plZespół delecji 1p36Del(1)(p36) · Delecja 1p36 · Delecja 1pter · Delecja subtelomerowa 1p36 · Monosomia 1p36 · Monosomia 1pter
csDeleční syndrom 1p36Del(1)(p36) · Delece 1p36 · Delece 1pter · Monozomie 1q36 · Monozomie 1pter · Subtelomerická 1p36 delece
ukСиндром делеції 1p36Del(1)(p36) · Делеція 1p36 · Делеція 1pter · Моносомія 1p36 · Моносомія 1pter · Делеція субтеломерної ділянки 1p36
zh1p36缺失综合征亚远端着丝粒1p36缺失
tr1p36 delesyon sendromuDel (1) (p36) · Delesyon 1p36 · Monozomi 1p36 · 1pter delesyon · Monozomi 1pter · Subtelomerik 1p36 delesyon

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM607872BTNTvalidated
OMIM616975NTBTvalidated
OMIM619343BTNTvalidated
ICD-10Q93.5NTBTattributedvalidated
ICD-11LD44.11NTBTindexvalidated
MONDO0011929Evalidated
MeSHC535362Evalidated
UMLSC1842870Evalidated
GARD6082Evalidated
MedDRA10082398Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

No children.

4

Genes

13 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CASZ1Role in the phenotype ofAssessedHGNC:26002ENSG000001309406098951p36.22castor zinc finger 124454898[PMID]
GABRDRole in the phenotype ofAssessedHGNC:4084ENSG000001877301371631p36.33gamma-aminobutyric acid type A receptor subunit delta22766398[PMID]
HSPG2Role in the phenotype ofAssessedHGNC:5273ENSG000001427981424611p36.12heparan sulfate proteoglycan 226345236[PMID]
KCNAB2Role in the phenotype ofAssessedHGNC:6229ENSG000000694246011421p36.31potassium voltage-gated channel subfamily A regulatory beta subunit 222766398[PMID]_17633087[PMID]
LUZP1Role in the phenotype ofAssessedHGNC:14985ENSG000001696416014221p36.12leucine zipper protein 126345236[PMID]
MMP23BRole in the phenotype ofAssessedHGNC:7171ENSG000001894096033211p36.33matrix metallopeptidase 23B26345236[PMID]
PDPNRole in the phenotype ofAssessedHGNC:29602ENSG000001624936088631p36.21podoplanin26345236[PMID]
PRDM16Role in the phenotype ofAssessedHGNC:14000ENSG000001426116055571p36.32PR/SET domain 1623768516[PMID]
PRKCZRole in the phenotype ofAssessedHGNC:9412ENSG000000676061769821p36.33protein kinase C zeta24454898[PMID]
RERERole in the phenotype ofAssessedHGNC:9965ENSG000001425996052261p36.23arginine-glutamic acid dipeptide repeats27087320[PMID]
SKIRole in the phenotype ofAssessedHGNC:10896ENSG000001579331647801p36.33-p36.32SKI proto-oncogene22766398[PMID]_12376748[PMID]
SPENRole in the phenotype ofAssessedHGNC:17575ENSG000000655266134841p36.21-p36.13spen family transcriptional repressor26345236[PMID]
UBE4BRole in the phenotype ofAssessedHGNC:12500ENSG000001309396135651p36.22ubiquitination factor E4B24454898[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-5 / 10 00015 / 100 000United StatesValue and classValidated9326330[PMID]
Point prevalence1-5 / 10 00015 / 100 000United StatesValue and classValidated9326330[PMID]_ORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

99 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002167Abnormality of speech or vocalization
HP:0001344Absent speech
HP:0001274Agenesis of corpus callosum
HP:0001156Brachydactyly
HP:0100490Camptodactyly of finger
HP:0002120Cerebral cortical atrophy
HP:0000490Deeply set eye
HP:0000750Delayed speech and language development
HP:0002353EEG abnormality
HP:0001508Failure to thrive
HP:0001288Gait disturbance
HP:0001263Global developmental delay
HP:0011228Horizontal eyebrow
HP:0001252Hypotonia
HP:0001249Intellectual disability
HP:0000343Long philtrum
HP:0011800Midface retrusion
HP:0000307Pointed chin
HP:0002465Poor speech
HP:0001773Short foot
HP:0002119Ventriculomegaly
HP:0000431Wide nasal bridge
Frequent (79-30%)
HP:0030680Abnormal cardiovascular system morphology
HP:0000534Abnormal eyebrow morphology
HP:0000733Abnormal repetitive mannerisms
HP:0000504Abnormality of vision
HP:0000708Atypical behavior
HP:0000717Autism
HP:0000248Brachycephaly
HP:0004209Clinodactyly of the 5th finger
HP:0002019Constipation
HP:0000270Delayed cranial suture closure
HP:0005280Depressed nasal bridge
HP:0000457Depressed nasal ridge
HP:0002015Dysphagia
HP:0000286Epicanthus
HP:0008872Feeding difficulties in infancy
HP:0002020Gastroesophageal reflux
HP:0008499High hypermetropia
HP:0000252Microcephaly
HP:0000160Narrow mouth
HP:0000358Posteriorly rotated ears
HP:0001250Seizure
HP:0100716Self-injurious behavior
HP:0000486Strabismus
Occasional (29-5%)
HP:000087811 pairs of ribs
HP:0008066Abnormal blistering of the skin
HP:0001671Abnormal cardiac septum morphology
HP:0001654Abnormal heart valve morphology
HP:0002242Abnormal intestine morphology
HP:0000055Abnormality of female external genitalia
HP:0004378Abnormality of the anus
HP:0002715Abnormality of the immune system
HP:0000077Abnormality of the kidney
HP:0001392Abnormality of the liver
HP:0000464Abnormality of the neck
HP:0001743Abnormality of the spleen
HP:0001734Annular pancreas
HP:0000892Bifid ribs
HP:0000518Cataract
HP:0000405Conductive hearing impairment
HP:0006824Cranial nerve paralysis
HP:0000028Cryptorchidism
HP:0005113Dilatation of the aortic arch
HP:0001644Dilated cardiomyopathy
HP:0001829Foot polydactyly
HP:0002007Frontal bossing
HP:0002230Generalized hirsutism
HP:0004374Hemiplegia/hemiparesis
HP:0001397Hepatic steatosis
HP:0001385Hip dysplasia
HP:0000126Hydronephrosis
HP:0000135Hypogonadism
HP:0008736Hypoplasia of penis
HP:0000047Hypospadias
HP:0000821Hypothyroidism
HP:0001387Joint stiffness
HP:0002808Kyphosis
HP:0100559Lower limb asymmetry
HP:0012733Macule
HP:0008551Microtia
HP:0003198Myopathy
HP:0003006Neuroblastoma
HP:0000639Nystagmus
HP:0001513Obesity
HP:0001107Ocular albinism
HP:0000648Optic atrophy
HP:0001643Patent ductus arteriosus
HP:0002591Polyphagia
HP:0002021Pyloric stenosis
HP:0000107Renal cyst
HP:0000902Rib fusion
HP:0002650Scoliosis
HP:0000407Sensorineural hearing impairment
HP:0004322Short stature
HP:0003416Spinal canal stenosis
HP:0001009Telangiectasia
HP:0001636Tetralogy of Fallot
HP:0000505Visual impairment

Run the differential on the 12 obligate / very frequent terms

7

Sources for this card