Use of the polymerase chain reaction to clone and sequence a cDNA encoding the bovine alpha 3 chain of type IV collagen.
Use of the polymerase chain reaction to clone and sequence a cDNA encoding the bovine alpha 3 chain of type IV collagen.
A novel type IV collagen, alpha 3(IV), has previously been isolated from a collagenase digest of bovine and human glomerular and lens basement membranes. The cloning and sequencing of a cDNA encoding the alpha 3(IV) chain is described here. Using the polymerase chain reaction, with primers derived from the known 27-residue bovine alpha 3(IV) amino acid sequence, a 68-base pair bovine genomic fragment (KEM68) which encodes the known peptide sequence, was synthesized. KEM68 was then used to screen a bovine lens cDNA library and a 1.5-kilobase partial cDNA clone obtained, encoding 471 residues of the bovine alpha 3(IV) chain: 238 residues from the triple helical collagenous domain and all 233 residues of the noncollagenous domain. The collagenous repeat sequence has three interruptions, coinciding with those in the alpha 1(IV) chain. The noncollagenous domain has 12 cysteine residues in identical positions to those of other type IV collagens and 71, 61, and 70% overall similarity with the human alpha 1(IV), alpha 2(IV), and alpha 5(IV) chains. The noncollagenous domain of alpha 3(IV) is of particular interest as it appears to be the component of glomerular basement membrane that reacts maximally with the Goodpasture antibody. Furthermore, such antigenicity is absent from collagenase digests of the glomerular basement membrane of some patients with Alport syndrome. The alpha 3(IV) cDNA clone described here now permits study of the molecular pathology of COL4A3 in Alport syndrome.
34-39
Morrison, K.E.
f00890f0-2fde-4dbd-a73b-7422e1b0ede8
Germino, G.G.
7d17d1f9-557d-4e77-903f-9f29182d1f3b
Reeders, S.T.
68cbd8f9-d203-4375-92dc-2ac0ca36799e
5 January 1991
Morrison, K.E.
f00890f0-2fde-4dbd-a73b-7422e1b0ede8
Germino, G.G.
7d17d1f9-557d-4e77-903f-9f29182d1f3b
Reeders, S.T.
68cbd8f9-d203-4375-92dc-2ac0ca36799e
Morrison, K.E., Germino, G.G. and Reeders, S.T.
(1991)
Use of the polymerase chain reaction to clone and sequence a cDNA encoding the bovine alpha 3 chain of type IV collagen.
The Journal of Biological Chemistry, 266 (1), .
(PMID:1985905)
Abstract
A novel type IV collagen, alpha 3(IV), has previously been isolated from a collagenase digest of bovine and human glomerular and lens basement membranes. The cloning and sequencing of a cDNA encoding the alpha 3(IV) chain is described here. Using the polymerase chain reaction, with primers derived from the known 27-residue bovine alpha 3(IV) amino acid sequence, a 68-base pair bovine genomic fragment (KEM68) which encodes the known peptide sequence, was synthesized. KEM68 was then used to screen a bovine lens cDNA library and a 1.5-kilobase partial cDNA clone obtained, encoding 471 residues of the bovine alpha 3(IV) chain: 238 residues from the triple helical collagenous domain and all 233 residues of the noncollagenous domain. The collagenous repeat sequence has three interruptions, coinciding with those in the alpha 1(IV) chain. The noncollagenous domain has 12 cysteine residues in identical positions to those of other type IV collagens and 71, 61, and 70% overall similarity with the human alpha 1(IV), alpha 2(IV), and alpha 5(IV) chains. The noncollagenous domain of alpha 3(IV) is of particular interest as it appears to be the component of glomerular basement membrane that reacts maximally with the Goodpasture antibody. Furthermore, such antigenicity is absent from collagenase digests of the glomerular basement membrane of some patients with Alport syndrome. The alpha 3(IV) cDNA clone described here now permits study of the molecular pathology of COL4A3 in Alport syndrome.
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Published date: 5 January 1991
Organisations:
Medical Education
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Local EPrints ID: 399574
URI: http://eprints.soton.ac.uk/id/eprint/399574
PURE UUID: 0bcd03d2-6f1d-424c-be2c-6c152d28051c
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Date deposited: 18 Aug 2016 13:59
Last modified: 11 Dec 2021 11:30
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Author:
K.E. Morrison
Author:
G.G. Germino
Author:
S.T. Reeders
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