Small proline-rich protein 2D (SPR-2D) (Small proline-rich protein II) (SPR-II)
1_MSYQQ 6_ QQCKQ 11_ PCQPP 16_ PVCPT 21_ PKCPE 26_ PCPPP 31_ KCPEP 36_ CPSPK 41_ CPQPC 46_ PPQQC 51_ QQKYP 56_ PVTPS 61_ PPCQP 66_KCPPK
1: Cross-linked envelope protein of keratinocytes. It is a keratinocyte protein that first appears in the cell cytosol, but ultimately becomes cross-linked to membrane proteins by transglutaminase. All that results in the formation of an insoluble envelope beneath the plasma membrane