Table 1 Phenotypes of patients with EIF5A variants.

From: Impaired eIF5A function causes a Mendelian disorder that is partially rescued in model systems by spermidine

Characteristics

Individual

1

2

3

4

5

6

7

Sex (age)a

F (6.9 y)

F (8.4 y)

F (8.4 y)

M (18.3 y)

M (8 mo)

M (4 y)

F (16.4 y)

Genomic positionb

17:7213097

17:7214714

17:7214722

17:7214723

17:7214723

17:7214741

17:7214762

cDNAc protein consequenced

c.143C>A p.T48N

c.316G>A p.G106R

c.324dupA p.R109Tfs*8

c.325C>G p.R109G

c.325C>T p.R109*

c.343C>T p.P115S

c.364G>A p.E122K

Inheritance/zygosity

DN Het

DN Het

DN Het

DN Het

DN Het

DN Het

DN Het

Perinatal history

  Congenital microcephaly

Yes

Yes

Yes

Unknown

No

No

Unknown

  IUGR

Yes

Yes

No

Yes

No

No

No

  Feeding difficulties

No

Yes

Yes

Yes

Yes

No

No

  Other

No

Cardiac anomalies

Cardiac anomalies

Cleft palate

Hypotonia

Cardiac anomalies

Hypotonia

No

Foetal ascites

DD/ID

Moderate/severe

Moderate

Mild

Moderate

Moderate

Mild/Moderate

Moderate

CNS anomalies

No

No

No

Peritrigonal hyperintensities

No

Left lateral ventriculomegaly

No

Physical anomalies

  Heart

No

Yes

Yes

Unknown

Yes

Unknown

Unknown

  Craniofacial

Yes

No

Yes

Yes

Yes

No

No

  Other

Hemivertebrae (L3)

No

No

Cryptorchidism

Pes planus

No

No

Toe contractures

Small toenails

Pes planus

Growth parameters

  Height (SD)

N (0.53)

SS (−2.82)

N (0.86)

N (−0.45)

N (−1.45)

N (+1 SD),

SS (−2.59)

  Weight (SD)

OW (2)

LW (−2.28)

N (−0.41)

N (0.06)

LW (−3.14)

N (−0.09 SD)

N (−0.69)

  HC (SD)

Mi (−3)

Mi (−7.47)

Mi (−2.11)

Mi (−2.62)

N (−0.45)

N (−1.09)

Mi (−1.94)

Facial dysmorphisms

  Broad eyebrows

Yes

Yes

Yes

Yes

No

Yes

No

 Abn. supraorbital ridges

Yes

Yes

Yes

Yes

No

No

No

 Epi/telecanthus

No

Yes

Yes

Yes

Yes

No

Yes

 Bulbous nasal tip

Yes

Yes

Yes

Yes

No

No

No

 Thin upper lip

No

Yes

Yes

Yes

Yes

No

No

 Micrognathia

Yes

Yes

Yes

Yes

No

Yes

No

 Low set ears

Yes

Yes

No

No

No

No

Yes

 Other

Lower eyelid hypoplasia

Hypertelorism

No

Prominent long ears

Plagiocephaly Sparse scalp hair Frontal bossing Downslanting PF Cupped ears

Long PF hypoplastic ala nasi

Deep-set eyes Abn. lower eyelids Small ears

Other medical issues

 Joint hypermobility

No

No

Yes

Yes

N/A

No

Yes

 Eye anomalies

Yes

No

No

Yes

No

Yes

Yes

 Others

No

Constipation Gastroesophageal reflux Gastrostomy

Conductive deafness Premature thelarche

Constipation

Dysphagia Gastrostomy Failure to thrive

Hypotonia Flat feet

Autism ADHD Delayed puberty Nasal polyps

Initial clinical suspicion

Mandibulofacial dysostosis like

Kabuki syndrome like

Kabuki syndrome like

Kabuki syndrome like

Mowat Wilson like

None

None

  1. Abn abnormal, ADHD attention deficit hyperactivity disorder, CNS central nervous system, DD developmental delay, HC head circumference, Het heterozygous, ID intellectual disability, IUGR intra-uterine growth retardation, LW low weight, Mi microcephaly, N within normal ranges, N/A not applicable, OW overweight, PF palpebral fissures, SD standard deviation, SS short stature.
  2. aAt last examination.
  3. bAccording to hg19.
  4. cGenBank reference NM_001970.5, Ensembl reference ENST00000336458.
  5. dUniProtKB reference P63241-1.