raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:75496

B4GALT7-related spondylodysplastic Ehlers-Danlos syndrome

Synonyms: B4GALT7-related spondylodysplastic EDS · EDS progeroid type 1 · EDS with short stature and limb anomalies · spEDS-B4GALT7

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Age of onset
Neonatal
Status
active

A form of spondylodysplastic Ehlers-Danlos syndrome due to variants in <i>B4GALT7</i> and characterized by short stature, variable degrees of muscle hypotonia, joint hypermobility, especially of the hands, and bowing of limbs. Additional features include the typical craniofacial gestalt (mid-face hypoplasia, round, flat face, proptosis and narrow mouth), hyperextensible skin that is soft, thin, translucent and doughy, delayed motor and/or cognitive development, characteristic radiographic findings (such as radio-ulnar synostosis, radial head subluxation or dislocation, metaphyseal flaring and osteopenia) and ocular abnormalities.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enB4GALT7-related spondylodysplastic Ehlers-Danlos syndromeB4GALT7-related spondylodysplastic EDS · EDS progeroid type 1 · EDS with short stature and limb anomalies · spEDS-B4GALT7
frSyndrome d'Ehlers-Danlos spondylodysplasique lié à B4GALT7EDS progéroïde type 1 · SED avec petite taille et anomalies des membres · SED progéroïde type 1 · SED spondylodysplasique lié à B4GALT7 · SEDsp lié à B4GALT7 · spEDS-B4GALT7
deB4GALT7-assoziiertes spondylodysplastisches Ehlers-Danlos-SyndromB4GALT7-CDG · B4GALT7-abhängiges spondylodysplastisches EDS · EDS mit Kleinwuchs und Extremitätenanomalien · EDS, progeroider Typ · EDS, progeroider Typ 1 · PDS · Proteodermatansulfat-Biosynthesedefekt · Xylosylprotein 4-beta-Galactosyltransferase-Mangel · spEDS-B4GALT7
esSíndrome de Ehlers-Danlos espondilodisplásico asociado a B4GALT7SED con talla baja y anomalías de las extremidades · SED espondilodisplásico asociado a B4GALT7 · SED tipo progeroide 1
itSindrome di Ehlers-Danlos spondilodisplastica correlata a B4GALT7B4GALT7-CDG · Deficit di XGPT · Deficit di galattosiltransferasi I · Deficit di xilosilproteina 4-beta-galattosiltransferasi · Difetto della biosintesi del proteodermatan solfato · EDS, tipo progeroide · PDS
nlB4GALT7-gerelateerd spondylodysplastisch syndroom van Ehlers-DanlosB4GALT7-gerelateerd spondylodysplastisch EDS · EDS met kleine gestalte en ledemaatanomalieën · EDS, progeroïd type 1 · spEDS-B4GALT7
ptSíndrome Ehlers-Danlos espondilodisplásico B4GALT7-relacionadoBiossíntese deficiente de sulfato de proteodermatano · Deficiência de galactosiltransferase I · Deficiência de xilosilproteína 4-beta-galactosiltransferase · Síndrome Ehlers-Danlos progeróide tipo 1
plZespół Ehlersa i Danlosa, typ progeroidalnyB4GALT7-CDG · Defekt biosyntezy siarczynu proteodermatanu · EDS, typ progeroidalny · Niedobór 4-beta-galaktozylotransferazy ksylozylproteiny · Niedobór galaktozylotransferazy I · Niedobór XGPT · PDS
csEhlersův-Danlosův syndrom, progeroidní typB4GALT7-CDG · Defektní biosyntéza proteodermatan sulfátu · EDS, progeroidní typ · Deficit galaktosyltransferázy I · PDS · Deficit XGPT · Deficit xylosylprotein 4-beta-galaktosyltransferázy · Ehlers-Danlosův syndrom, progeroidní typ
ukB4GALT7-асоційований спондилодиспластичний синдром Елерса-ДанлосаB4GALT7-асоційовані спондилодиспластичні ЕДС · ЕДС прогероїдного типу 1 · ЕДС з низьким зростом та аномаліями кінцівок · spEDS-B4GALT7
zhB4GALT7相关脊柱发育不良型Ehlers-Danlos综合征EDS伴身材矮小和肢体畸形
trB4GALT7-ilişkili spondilodisplastik Ehlers-Danlos sendromuspEDS-B4GALT7 · EDS progeroid tip 1 · B4GALT7-ilişkili spondilodisplastik EDS · Kısa boy ve ekstremite anomali ile seyreden EDS

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM130070NDvalidated
ICD-10Q79.6NTBTattributedvalidated
ICD-11LD28.1YNTBTattributedvalidated
MONDO0007526Evalidated
MeSHC536201Evalidated
UMLSC5680137Evalidated

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 (6):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
B4GALT7Disease-causing germline mutation(s) inAssessedHGNC:930ENSG000000278476043275q35.3beta-1,4-galactosyltransferase 715211654[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26940150[PMID]
Cases/families34 casesWorldwideCase(s)Validated26940150[PMID]

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

37 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001650Aortic valve stenosis
HP:0001166Arachnodactyly
HP:0000028Cryptorchidism
HP:0000973Cutis laxa
HP:0000286Epicanthus
HP:0001371Flexion contracture
HP:0000230Gingivitis
HP:0001263Global developmental delay
HP:0001510Growth delay
HP:0000974Hyperextensible skin
HP:0001252Hypotonia
HP:0009125Lipodystrophy
HP:0010511Long toe
HP:0000256Macrocephaly
HP:0007469Palmoplantar cutis gyrata
HP:0001763Pes planus
HP:0005328Progeroid facial appearance
HP:0001642Pulmonic stenosis
HP:0004322Short stature
HP:0100813Testicular torsion
HP:0000963Thin skin
Frequent (79-30%)
HP:0001999Abnormal facial shape
HP:0001000Abnormality of skin pigmentation
HP:0001075Atrophic scars
HP:0000987Atypical scarring of skin
HP:0000160Narrow mouth
HP:0000938Osteopenia
HP:0002652Skeletal dysplasia
HP:0003202Skeletal muscle atrophy
HP:0045075Sparse eyebrow
HP:0000653Sparse eyelashes
HP:0002209Sparse scalp hair
HP:0000506Telecanthus
HP:0000431Wide nasal bridge
Occasional (29-5%)
HP:0006481Abnormality of primary teeth
HP:0001382Joint hypermobility
HP:0002751Kyphoscoliosis

Run the differential on the 12 obligate / very frequent terms

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Sources for this card