Positive Samples: Rat uterus Immunogen sequence: SDGRQDSPAG ELPKTVQQPT ESEPVTINIQ DLLSCSNFAV QHRYLFEEDN LLRSTQKLSH STKPSGSPLE EKHDQCKCEN LIMFQNLANE EVRKLTQRLE EMTQRMEALE NRLRYR. Matrilin (MATNs) are a family of non-collagenous extracellular matrix protei