Hyaluronan receptor for endocytosis, variants thereof, and methods of making and using same
First Claim
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1. A purified recombinant mammalian HARE comprising a polypeptide which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the purified recombinant mammalian HARE comprising at least one of items (a) through (f):
- wherein item (a) comprises a purified recombinant mammalian HARE having a molecular weight of about 190 kDa;
wherein item (b) comprises a purified recombinant mammalian HARE having a molecular weight of about 315 kDa;
wherein item (c) comprises a purified recombinant mammalian HARE having an amino acid sequence in accordance with SEQ ID NO;
4;
wherein item (d) comprises a purified recombinant mammalian HARE having an amino acid sequence in accordance with SEQ ID NO;
96;
wherein item (e) comprises a purified recombinant human HARE; and
wherein item (f) comprises a purified recombinant mammalian HARE which is recognized by at least one of the monoclonal antibodies mAb-30, mAb-154, mAb-159 and a monoclonal antibody which demonstrates an immunological binding characteristic of such monoclonal antibodies.
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Abstract
A purified recombinant mammalian HARE comprising a polypeptide which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate is disclosed, as well as methods of expressing and using same. Also disclosed are functionally active variants of HARE which are able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, as well as methods of expressing and using same.
34 Citations
40 Claims
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1. A purified recombinant mammalian HARE comprising a polypeptide which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the purified recombinant mammalian HARE comprising at least one of items (a) through (f):
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wherein item (a) comprises a purified recombinant mammalian HARE having a molecular weight of about 190 kDa;
wherein item (b) comprises a purified recombinant mammalian HARE having a molecular weight of about 315 kDa;
wherein item (c) comprises a purified recombinant mammalian HARE having an amino acid sequence in accordance with SEQ ID NO;
4;
wherein item (d) comprises a purified recombinant mammalian HARE having an amino acid sequence in accordance with SEQ ID NO;
96;
wherein item (e) comprises a purified recombinant human HARE; and
wherein item (f) comprises a purified recombinant mammalian HARE which is recognized by at least one of the monoclonal antibodies mAb-30, mAb-154, mAb-159 and a monoclonal antibody which demonstrates an immunological binding characteristic of such monoclonal antibodies. - View Dependent Claims (2, 3)
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- 4. An isolated nucleic acid sequence encoding a functionally active mammalian HARE which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the isolated nucleic acid sequence comprising a nucleic acid sequence in accordance with SEQ ID NO:
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15. An isolated nucleic acid sequence encoding a functionally active variant or fragment of HARE, wherein the functionally active variant or fragment of HARE is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the nucleic acid sequence comprising at least one of items (a) through (p):
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wherein item (a) comprises a nucleic acid sequence in accordance with SEQ ID NO;
55;
wherein item (b) comprises a nucleic acid sequence in accordance with SEQ ID NO;
57;
wherein item (c) comprises a nucleic acid sequence in accordance with SEQ ID NO;
59;
wherein item (d) comprises a nucleic acid sequence in accordance with SEQ ID NO;
61;
wherein item (e) comprises a nucleic acid sequence in accordance with SEQ ID NO;
73;
wherein item (f) comprises a nucleic acid sequence in accordance with SEQ ID NO;
75;
wherein item (g) comprises a nucleic acid sequence in accordance with SEQ ID NO;
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wherein item (h) comprises a nucleic acid sequence in accordance with SEQ ID NO;
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wherein item (i) comprises a nucleic acid sequence in accordance with SEQ ID NO;
81;
wherein item (j) comprises a nucleic acid sequence which will hybridize to a complement of at least one of the nucleic acid sequences of items (a)-(i) or a fragment of at least one of the nucleic acid sequences defined in items (a)-(i) under stringent hybridization conditions;
wherein item (k) comprises a nucleic acid sequence that has at least about 76% sequence identity to at least one of the nucleic acid sequences defined in items (a)-(i);
wherein item (l) comprises a nucleic acid sequence that has at least about 80% sequence identity to at least one of the nucleic acid sequences defined in items (a)-(i);
wherein item (m) comprises a nucleic acid sequence that has at least about 85% sequence identity to at least one of the nucleic acid sequences defined in items (a)-(i);
wherein item (n) comprises a nucleic acid sequence that has at least about 90% sequence identity to at least one of the nucleic acid sequences defined in items (a)-(i);
wherein item (o) comprises a nucleic acid sequence that encodes semiconservative or conservative amino acid changes when compared to at least one of the nucleic acid sequences defined in items (a)-(i); and
wherein item (p) comprises a nucleic acid sequence which but for the degeneracy of the genetic code, or encoding of functionally equivalent amino acids, would hybridize to at least one of the nucleic acid sequences defined in items (a)-(i). - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A purified recombinant mammalian HARE variant or fragment comprising a polypeptide which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the purified recombinant mammalian HARE variant or fragment comprising at least one of items (a) through (p):
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wherein item (a) comprises a soluble fragment of HARE;
wherein item (b) comprises an amino acid sequence in accordance with SEQ ID NO;
56;
wherein item (c) comprises an amino acid sequence in accordance with SEQ ID NO;
58;
wherein item (d) comprises an amino acid sequence in accordance with SEQ ID NO;
60;
wherein item (e) comprises an amino acid sequence in accordance with SEQ ID NO;
62;
wherein item (f) comprises an amino acid sequence in accordance with SEQ ID NO;
74;
wherein item (g) comprises an amino acid sequence in accordance with SEQ ID NO;
76;
wherein item (h) comprises an amino acid sequence in accordance with SEQ ID NO;
78;
wherein item (i) comprises an amino acid sequence in accordance with SEQ ID NO;
80;
wherein item (j) comprises an amino acid sequence in accordance with SEQ ID NO;
82;
wherein item (k) comprises an amino acid sequence encoded by a nucleic acid sequence which will hybridize to a complement of a nucleic acid sequence that encodes at least one of the amino acid sequences of items (b)-(j) or a fragment of a nucleic acid sequence that encodes at least one of the amino acid sequences defined in items (b)-(j) under stringent hybridization conditions;
wherein item (l) comprises an amino acid sequence that has at least about 76% sequence identity to at least one of the amino acid sequences defined in items (b)-(j);
wherein item (m) comprises an amino acid sequence that has at least about 80% sequence identity to at least one of the amino acid sequences defined in items (b)-(j);
wherein item (n) comprises an amino acid sequence that has at least about 85% sequence identity to at least one of the amino acid sequences defined in items (b)-(j);
wherein item (o) comprises an amino acid sequence that has at least about 90% sequence identity to at least one of the amino acid sequences defined in items (b)-(j); and
wherein item (p) comprises an amino acid sequence that has semiconservative or conservative amino acid changes when compared to at least one of the amino acid sequences defined in items (b)-(j). - View Dependent Claims (32, 33)
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34. A method of producing a recombinant, functionally active soluble HARE variant or fragment wherein the recombinant, functionally active soluble HARE variant or fragment is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate, the method comprising the steps of:
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providing a recombinant host cell containing a recombinant DNA segment which encodes and is capable of expressing a recombinant, functionally active soluble HARE variant or fragment; and
culturing the recombinant host cell under conditions that allow for expression of the recombinant DNA segment encoding a recombinant, functionally active soluble HARE variant or fragment, thereby producing a recombinant, functionally active soluble HARE variant or fragment which is able to specifically bind at least one of HA, chondroitin and chondroitin sulfate. - View Dependent Claims (35)
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36. A method of preventing interaction between a first cell expressing HARE on a surface thereof and a second cell whose surface contains at least one of HA, chondroitin and chondroitin sulfate, the method comprising the steps of:
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providing a functionally active, soluble variant or fragment of HARE capable of binding at least one of HA, chondroitin and chondroitin sulfate on the surface of the second cell; and
administering an effective amount of the functionally active, soluble variant or fragment of HARE, wherein the functionally active, soluble variant or fragment of HARE inhibits binding of HARE expressed on the surface of the first cell to at least one of HA, chondroitin and chondroitin sulfate on the surface of the second cell.
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37. A kit for determining the presence of at least one of HA, heparin, CS-A, CS-B, CS-C, CS-D, CS-E, chondroitin, keratan sulfate, and heparan sulfate, comprising:
at least one variant or fragment of HARE, wherein the at least one variant or fragment of HARE is capable of selectively binding at least one of HA, heparin, CS-A, CS-B, CS-C, CS-D, CS-E, chondroitin, keratan sulfate, and heparan sulfate. - View Dependent Claims (38, 39, 40)
Specification