Hyperprolinemia is a condition which occurs when the amino acid proline is not broken down properly by the enzymes proline oxidase or pyrroline-5-carboxylate dehydrogenase, causing a buildup of proline in the body. Genetics
Mutations in the ALDH4A1 and PRODH genes cause hyperprolinemia.Hyperprolinemia type I is caused by a mutation in the PRODH gene, which codes for the enzyme proline oxidase. This enzyme begins the process of degrading proline by starting the reaction that converts it to pyrroline-5-carboxylate.Hyperprolinemia type II is caused by a mutation in the ALDH4A1 gene, for the enzyme 1-pyrroline-5-carboxylate dehydrogenase. This enzyme helps to break down the pyrroline-5-carboxylate produced in the previous reaction, converting it to the amino acid glutamate. The conversion between proline and glutamine, and the reverse reaction controlled by different enzymes, are important factors required to maintain proper metabolism and protein production. A deficiency of either proline oxidase or pyrroline-5-carboxylate dehydrogenase results in a buildup of proline in the body. A deficiency of the latter enzyme leads to higher levels of proline and a buildup of the intermediate breakdown product pyrroline-5-carboxylate, causing the signs and symptoms of hyperprolinemia type II.Hyperprolinemia is inherited in an autosomal recessive pattern, which means two copies of the gene in each cell are altered.
New Zealand
Under Section 150 of the New Zealand Crimes Act 1961, it is an offence for there to be "misconduct in respect to human remains". Subsection (b) elaborates that this applies if someone "improperly or indecently interferes with or offers indignity to any dead human body or human remains, whether buried or not". This statute is therefore applicable to sex with corpses and carries a potential two-year prison sentence, although there is no relevant case law. South Africa
Section 14 of the Criminal Law (Sexual Offences and Related Matters) Amendment Act, 2007 prohibits the commission of a sexual act with a corpse. Until codified by the act it was a common law offence. Sweden
Section 16, § 10 of the Swedish Penal Code criminalises necrophilia, but it is not explicitly mentioned. Necrophilia falls under the regulations against abusing a corpse or grave (Brott mot griftefrid), which carries a maximum sentence of two years in prison. One person has been convicted of necrophilia. He was sentenced to psychiatric care for that and other crimes, including arson. United Kingdom
Sexual penetration of a corpse was made illegal under the Sexual Offences Act 2003, carrying a maximum sentence of two years imprisonment. Prior to 2003, necrophilia was not illegal; however, exposing a naked corpse in public was classed as a public nuisance (R v. Clark [1883] 15 Cox 171). United States
There is no federal legislation specifically barring sex with a corpse.