Following are the mature mineralized matrix marker of the periodontal ligament except:: (A) Type 1 and type 3 collagen., (B) Osteonectin., (C) Alkaline phosphate., (D) Osteopontin.
Answer is A. Markers for Periodontal Ligament Stem Cells
1. Bone Marrow Markers

STRO-1

2. Perivascular Cell Markers

CD146
αSMA
Pericyte associated antigen 3G5
CD106

3. Mature Mineralized Matrix Markers

Alkaline phosphatase
Osteonectin
Osteopontin
Osteocalcin
Bone sialoproteins

4. Connective Tissue Protein Markers

Type I and III collagen