PMID- 10533030 OWN - NLM STAT- MEDLINE DCOM- 19991130 LR - 20190905 IS - 0148-7299 (Print) IS - 0148-7299 (Linking) VI - 87 IP - 2 DP - 1999 Nov 19 TI - Two distinct phenotypes caused by two different missense mutations in the same codon of the VHL gene. PG - 163-7 AB - We have identified a family segregating von Hippel-Lindau (VHL) disease with a previously unreported T547A mutation in exon 1 of the VHL gene that causes a Tyr112 to Asn missense alteration in the protein. The mutation was identified by nucleotide sequencing and confirmed by restriction enzyme digestion. The mutation cosegregated with the disease in all five tested affected individuals from the extended family. The family consists of more than 100 at-risk individuals over seven generations. To date, we have identified 13 affected individuals of whom seven have had renal cell carcinoma and one has had a pheochromocytoma. No other case of a neuroendocrine tumor of the pancreas or adrenal gland (pheochromocytoma) was found or recognized retrospectively. Other manifestations in this family include retinal angioma and hemangioblastoma of the central nervous system. We also found the T547A mutation in three asymptomatic members of the family, ages 12, 19, and 20. Another mutation, T547C, which causes Tyr112 to His, has been seen at the same position and has been associated with VHL type 2A (pheochromocytoma, but no renal cell carcinoma) in two families with a total of 22 affected individuals [Chen F, Slife L, Kishida T, Mulvihill J, Tisherman SE, Zbar B, 1996: J Med Genet 33:716-717]. Thus, different amino acid changes at the same position can cause very distinct clinical phenotypes. It will be interesting to elucidate the functional differences that underlie the different phenotypes. CI - Copyright 1999 Wiley-Liss, Inc. FAU - Bradley, J F AU - Bradley JF AD - Molecular Genetics Laboratory, Sections of Medical Genetics and Hematology-Oncology, Children's Mercy Hospital, Kansas City, Missouri 64108, USA. FAU - Collins, D L AU - Collins DL FAU - Schimke, R N AU - Schimke RN FAU - Parrott, H N AU - Parrott HN FAU - Rothberg, P G AU - Rothberg PG LA - eng PT - Journal Article PL - United States TA - Am J Med Genet JT - American journal of medical genetics JID - 7708900 RN - 0 (Codon) RN - 0 (Proteins) RN - 0 (Tumor Suppressor Proteins) RN - EC 2.3.2.27 (Ubiquitin-Protein Ligases) RN - EC 2.3.2.27 (Von Hippel-Lindau Tumor Suppressor Protein) RN - EC 6.- (Ligases) RN - EC 6.3.2.- (VHL protein, human) SB - IM MH - Adult MH - Amino Acid Substitution/genetics MH - Base Sequence MH - Carcinoma, Renal Cell/genetics MH - Child MH - Codon/*genetics MH - DNA Mutational Analysis MH - Exons/genetics MH - Female MH - Humans MH - *Ligases MH - Male MH - Mutation, Missense/*genetics MH - Pedigree MH - Phenotype MH - Pheochromocytoma/genetics MH - Proteins/*genetics MH - *Tumor Suppressor Proteins MH - *Ubiquitin-Protein Ligases MH - Von Hippel-Lindau Tumor Suppressor Protein MH - von Hippel-Lindau Disease/*genetics EDAT- 1999/10/26 00:00 MHDA- 1999/10/26 00:01 CRDT- 1999/10/26 00:00 PHST- 1999/10/26 00:00 [pubmed] PHST- 1999/10/26 00:01 [medline] PHST- 1999/10/26 00:00 [entrez] AID - 10.1002/(SICI)1096-8628(19991119)87:2<163::AID-AJMG7>3.0.CO;2-A [pii] AID - 10.1002/(sici)1096-8628(19991119)87:2<163::aid-ajmg7>3.0.co;2-a [doi] PST - ppublish SO - Am J Med Genet. 1999 Nov 19;87(2):163-7. doi: 10.1002/(sici)1096-8628(19991119)87:2<163::aid-ajmg7>3.0.co;2-a.