Recombinant humanized collagen type III alpha-1, and expression vector and use thereof

A recombinant humanized collagen type III alpha-1 (rhCol III α1) fusion protein consisting of SEQ ID NO:

• 3 for use in a skin care product, the rhCol III α1 fusion protein being encoded by a fused nucleotide sequence, and wherein the fused nucleotide sequence comprises sequentially a gene sequence for encoding a secretion signal peptide, a gene sequence for encoding a 8× histidine tag, a gene sequence for encoding a green fluorescent protein (GFP), a DNA sequence for encoding a digestion sequence of a tobacco etch virus (TEV) protease, and a gene sequence for encoding rhCol III α1;
• wherein the rhCol III α1 fusion protein has the amino acid sequence consisting of SEQ ID NO:
• 3;
• and
• wherein the gene sequence for encoding rhCol III α1 has the sequence consisting of SEQ ID NO:
• 1.