Case: patient #20, Male

Disease Assertion: UCD/OTCD

Family Info: NA

Case Presenting HPOs: Hyperammonemia (HP:0001987), oriticaciduria (HP:0003218), low plasma citrulline (HP:0003572), neonatal onset (HP:0003623)

Case HPO FreeText:

Case NOT HPOs:

Case NOT HPO Free Text:

Case Previous Testing: Genomic DNA was isolated using PUREGENE blood kit from peripheral leukocytes of patients and related family members with informed consents. Amplification by PCR of all 10 exons of the OTC gene was performed using nine pairs of primers designed to span all exons and their adjacent intronic regions. PCR products were subsequently sequenced using ABI3100 Genetic analyzer with BigDye termination ver.3.0.To analyze the activity of OTC protein expressed in the COS-7, high-pressure liquid chromatographic (HPLC) analysis was performed with a Water system, consisting of a model 510 pump and a UV-visible 420 detector.

Supplemental Data: Table 1 Notes:

Variant: NM_000531.6: c.796_805del(p.Ile265AspfsX20)

ClinVarID: NA

CAID: CA2695233326

gnomAD:

Gene Name: OTC (ornithine transcarbamylase)

Case: Patient #15, male, Korean

DiseaseAssertion: UCD/OTCD

FamilyInfo: N/A

CasePresentingHPOs: HP:0011463, HP:0001987, HP:0003218, HP:0003572

CaseHPOFreeText: Neonatal onset, hyperammonemia, oroticaciduria, low plasma citrulline

CaseNOTHPOs:

CaseNOTHPOFreeText:

CasePreviousTesting: Genomic DNA was extracted from peripheral blood leukocytes. A total of 10 coding exons and exon–intron boundaries of the OTC gene were amplified by PCR with customized primers. PCR products were directly sequenced with the same primers . Sequencing results were compared with the established human OTC sequences(NM_000531.5). Multiplex ligation-dependent probe amplification analysis was performed for patients in whom no OTC mutations were identified by direct sequencing using the OTC MLPA kit.

Supplemental Data: Table 1, mother is a carrier, no range was given for blood ammonia concentration, range given in the tables for glutamine and urine orotate is slightly different than the one in the results paragraphs.

Variant: NM_000531.6:c.796_805del(p.Ile265_Gly268delinsAspfs*19)

ClinVarID: N/A

CAID:CA2695233326

gnomAD:

GeneName: OTC (ornithine transcarbamylase)