HEADSC 3fva SEQCRD A N ASN ASN 1 1 C C 0 SEQCRD A N ASN ASN 2 2 C C 0 SEQCRD A Q GLN GLN 3 3 C C 0 SEQCRD A N ASN ASN 4 4 C C 0 SEQCRD A T THR THR 5 5 C C 0 SEQCRD A F PHE PHE 6 6 C C 0 PARAME method XRAY PARAME resolution 1.458 PARAME R-factor 0.163 PARAME FreeR-factor 0.174