HEADSC 3dg1 SEQCRD A S SER SER 1 1 C C 0 SEQCRD A S SER SER 2 2 C C 0 SEQCRD A T THR THR 3 3 C C 0 SEQCRD A N ASN ASN 4 4 C C 0 SEQCRD A V VAL VAL 5 5 C C 0 SEQCRD A G GLY GLY 6 6 C C 0 PARAME method XRAY PARAME resolution 1.660 PARAME R-factor 0.211 PARAME FreeR-factor 0.244