Symptom Information: Sort according to HPO 

1
(HPO:0001250) Seizures 1245 / 7739
2
(HPO:0001263) Global developmental delay 853 / 7739
3
(HPO:0001276) Hypertonia 317 / 7739
4
(HPO:0001320) Cerebellar vermis hypoplasia 57 / 7739
5
(HPO:0005484) Postnatal microcephaly 32 / 7739
6
(HPO:0008872) Feeding difficulties in infancy 153 / 7739
7
(HPO:0012277) Hypoglycinemia 1 / 7739
8
(HPO:0012279) Hyposerinemia 1 / 7739
9
(HPO:0011968) Feeding difficulties 240 / 7739
10
(OMIM) Jerking movements 1 / 7739
11
(MedDRA:10036437) Posturing 1 / 7739
12
(OMIM) Intractable seizures 12 / 7739
13
(OMIM) Brain imaging shows generalized atrophy 1 / 7739
14
(OMIM) Decrease plasma serine (fasting) 2 / 7739
15
(OMIM) Decreased plasma glycine 1 / 7739
16
(OMIM) Decreased CSF serine 2 / 7739
17
(OMIM) Decreased CSF glycine 2 / 7739
18
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
19
(HPO:0003593) Infantile onset 249 / 7739