Amino acid sequence of bovine brain derived class 1 heparin-binding growth factor

Abstract
The major class 1 heparin-binding growth factor from bovine brain is a single-chain polypeptide of 140 amino acids with a molecular weight of 15,877. It has the amino acid sequence Phe1-Asn-Leu-Pro-Leu-Gly-Asn-Tyr-Lys-Lys-Pro-Lys-Leu-Leu-Thr15-Cys-Ser-Asn-Gly-Gly-Tyr-Phe-Leu-Arg-Ile-Leu-Pro-Asp-Gly-Thr30-Val-Asp-Gly-Thr-Lys-Asp-Arg-Ser-Asp-Gln-His-Ile-Gln-Leu-Gln45-Leu-Cys-Ala-Glu-Ser-Ile-Gly-Glu-Val-Tyr-Ile-Lys-Ser-Thr-Glu60-Thr-Gly-Gln-Phe-Leu-Ala-Met-Asp-Thr-Asp-Gly-Leu-Leu-Tyr-Gly75-Ser-Gln-Thr-Pro-Asn-Glu-Glu-Cys-Leu-Phe-Leu-Glu-Arg-Leu-Glu90-Glu-Asn-His-Tyr-Asn-Thr-Tyr-Ile-Ser-Lys-Lys-His-Ala-Glu-Lys105-His-Trp-Phe-Val-Gly-Leu-Lys-Lys-Asn-Gly-Arg-Ser- Lys-Leu-Gly120-Pro-Arg-Thr-His-Phe-Gly-Gln-Lys-Ala-Ile-Leu-Phe-Leu-Pro-Leu135-Pro-Val-Ser-Ser-Asp140-OH. The mitogen is homologous to the class 2 heparin-binding growth factor pituitary fibroblast growth factor with about 50% of the amino acids being identical between the two mitogens.