Polynucleotides encoding three novel human cell surface proteins with leucine rich repeats and immunoglobulin folds, BGS2, 3 and 4 and variants thereof

An isolated polypeptide comprising an amino acid sequence selected from the group consisting of:

• (a) a polypeptide fragment of SEQ ID NO:6 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (b) a polypeptide fragment of SEQ ID NO:6 or the encoded sequence included in ATCC Deposit No:
• PTA-4175, having cell adhesion protein activity;
• (c) a polypeptide domain of SEQ ID NO:6 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (d) a polypeptide epitope of SEQ ID NO:6 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (e) a full length protein of SEQ ID NO:6 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (f) a polypeptide comprising amino acids 2 to 590 of SEQ ID NO:6, wherein said amino acids 2 to 590 comprising a polypeptide of SEQ ID NO:6 minus the start methionine;
• (g) a polypeptide comprising amino acids 1 to 590 of SEQ ID NO:6;
• (h) a polypeptide comprising amino acids 30 to 590 of SEQ ID NO:6, wherein said amino acids 30 to 590 comprise the mature polypeptide of SEQ ID NO:6;
• (i) a polypeptide fragment of SEQ ID NO:154 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (j) a polypeptide fragment of SEQ ID NO:154 or the encoded sequence included in ATCC Deposit No:
• PTA-4175, having cell adhesion protein activity;
• (k) a polypeptide domain of SEQ ID NO:154 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (l) a polypeptide epitope of SEQ ID NO:154 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (m) a full length protein of SEQ ID NO:154 or the encoded sequence included in ATCC Deposit No:
• PTA-4175;
• (n) a polypeptide comprising amino acids 2 to 593 of SEQ ID NO:154, wherein said amino acids 2 to 593 comprising a polypeptide of SEQ ID NO:154 minus the start methionine;
• (o) a polypeptide comprising amino acids 1 to 593 of SEQ ID NO:154;
• and
• (p) a polypeptide comprising amino acids 30 to 593 of SEQ ID NO:154, wherein said amino acids 30 to 593 comprise the mature polypeptide of SEQ ID NO:154.