>3lrd_B mol:protein length:137 Major ampullate spidroin 1GSGNSHTTPWTNPGLAENFMNSFMQGLSSMPGFTASQLDNMSTIAQSMVQSIQSLAAQGRTSPNKLQALNMAFASSMAEIAASQEGGGSLSTKTSSIASAMSNAFLQTTGVVNQPFINEITQLVSMFAQAGMNDVSA