S.C. Code § 30-9-40
The register of deeds or clerk of court in those counties where the office of the register of deeds has been abolished shall immediately upon the filing for record of any deed, mortgage, or other written instrument of the character mentioned in Section 30-7-10 or Chapter 9 of Title 36 enter it upon the proper indexes in his office, which constitute an integral, necessary, and inseparable part of the recordation of the deed, mortgage, or other written instrument for any and all purposes whatsoever, and this shall likewise apply to any copy of the indexes made subsequently by the register of deeds or clerk of court, or the deputy of either, or by his authority for the purpose of replacing the original indexes. The entries in the indexes required to be made are notice to all persons sufficient to put them upon inquiry as to the purport and effect of the deed, mortgage, or other written instrument so filed for record, but the recordation of a deed, mortgage, or other written instrument is not notice as to the purport and effect of the deed, mortgage, or other written instrument unless the filing of the instrument for record is entered as required in the indexes.
S.C. Code § 30-9-40
Code Commissioner's Note
1997 Act No. 34, Section 1, directed the Code Commissioner to change all references to "Register of Mesne Conveyances" to "Register of Deeds" wherever appearing in the 1976 Code of Laws.