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Structure and expre...
Structure and expression of the gene encoding cystatin D, a novel human cysteine proteinase inhibitor
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Freije, José P (författare)
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- Abrahamson, Magnus (författare)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine
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Olafsson, Isleifur (författare)
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Velasco, Gloria (författare)
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- Grubb, Anders (författare)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine
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Lopez-Otin, Carlos (författare)
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(creator_code:org_t)
- 1991
- 1991
- Engelska.
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Ingår i: Journal of Biological Chemistry. - 1083-351X. ; 266:30, s. 20538-20543
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http://www.jbc.org/c... (free)
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Abstract
Ämnesord
Stäng
- A new member of the human cystatin multigene family has been cloned from a genomic library using a cystatin C cDNA probe. The complete nucleotide sequence of a 4.3-kilobase DNA segment, containing a complete gene with structure very similar to those of known Family 2 cystatin genes, was determined. The novel gene, called CST4, is composed of three exons and two introns. It contains the coding information for a protein of 142 amino acid residues, which has been tentatively called cystatin D. The deduced amino acid sequence includes a putative signal peptide and presents 51-55% identical residues with the sequences of either cystatin C or the secretory gland cystatins S, SN, or SA. The cystatin D sequence contains all regions of relevance for cysteine proteinase inhibitory activity and also the 4 cysteine residues that form disulfide bridges in the other members of cystatin Family 2. Northern blot analysis revealed that the cystatin D gene is expressed in parotid gland but not in seminal vesicle, prostate, epididymis, testis, ovary, placenta, thyroid, gastric corpus, small intestine, liver, or gall-bladder tissue. This tissue-restricted expression is in marked contrast with the wider distribution of all the other Family 2 cystatins, since cystatin C is expressed in all these tissues and the secretory gland cystatins are present in saliva, seminal plasma, and tears. Cystatin D, being the first described member of a third subfamily within the cystatin Family 2, thus appears to have a distinct function in the body in contrast to other cystatins.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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