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PMID |
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TITLE |
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Is Pi a selectively balanced polymorphism? |
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ABSTRACT |
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A stable polymorphism of the Pi alleles M1, M2 and M3 close to their observed frequencies has been predicted, simply by relating fitness to the proportion of each genotype having alpha 1-antitrypsin (alpha 1-AT) levels greater than 100 mg/100 ml. By further specifying that the rare S and Z genotypes with low alpha 1-AT levels have enhanced fertility, equilibria of the M, S and Z alleles have also been predicted close to their observed frequencies; however, none of these latter equilibria is stable, mainly because the predicted fitness of the SS genotype is too great. |
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DATE PUBLISHED |
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HISTORY |
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PUBSTATUS |
PUBSTATUSDATE |
pubmed |
1983/01/01 |
medline |
1983/01/01 00:01 |
entrez |
1983/01/01 00:00 |
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AUTHORS |
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NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
Martin NG |
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Martin |
N G |
NG |
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Oakeshott JG |
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Oakeshott |
J G |
JG |
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INVESTIGATORS |
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JOURNAL |
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VOLUME: 33 |
ISSUE: 1 |
TITLE: Human heredity |
ISOABBREVIATION: Hum. Hered. |
YEAR: 1983 |
MONTH: |
DAY: |
MEDLINEDATE: |
SEASON: |
CITEDMEDIUM: Print |
ISSN: 0001-5652 |
ISSNTYPE: Print |
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MEDLINE JOURNAL |
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MEDLINETA: Hum Hered |
COUNTRY: Switzerland |
ISSNLINKING: 0001-5652 |
NLMUNIQUEID: 0200525 |
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PUBLICATION TYPE |
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PUBLICATIONTYPE TEXT |
Journal Article |
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COMMENTS AND CORRECTIONS |
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GRANTS |
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GENERAL NOTE |
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KEYWORDS |
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MESH HEADINGS |
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DESCRIPTORNAME |
QUALIFIERNAME |
Alleles |
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Gene Frequency |
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Genotype |
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Humans |
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Phenotype |
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Polymorphism, Genetic |
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Selection, Genetic |
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alpha 1-Antitrypsin |
genetics |
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SUPPLEMENTARY MESH |
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GENE SYMBOLS |
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CHEMICALS |
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REGISTRYNUMBER |
NAMEOFSUBSTANCE |
0 |
alpha 1-Antitrypsin |
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OTHER ID's |
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