TVQERFFRPHFLQAPGDLTVQEGKLCRMDCKVSGLPTPDLSWQLDGKPIRPDSAHKMLVRENGVHSLIIEPVTSRDAGIYTCIATNRAGQNSFNLELVVAAKEAHK
The protein construct used for SAXS contains two additional non-native amino acids at the N-terminus (TV). The protein fragment encompasses the Ig-like C2-type 4 domain (Ig4WT).