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Platelet-derived growth factor subunit B



Sus scrofa (Pig)
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli


Growth factor that plays an essential role in the regulation of embryonic development, cell proliferation, cell migration, survival and chemotaxis. Potent mitogen for cells of mesenchymal origin. Required for normal proliferation and recruitment of pericytes and vascular smooth muscle cells in the central nervous system, skin, lung, heart and placenta. Required for normal blood vessel development, and for normal development of kidney glomeruli. Plays an important role in wound healing. Signaling is modulated by the formation of heterodimers with PDGFA (By similarity).By similarity

GO - Molecular functioni

GO - Biological processi


Molecular functionDevelopmental protein, Growth factor, Mitogen

Names & Taxonomyi

Protein namesi
Recommended name:
Platelet-derived growth factor subunit B
Short name:
PDGF subunit B
Alternative name(s):
Platelet-derived growth factor B chain
Platelet-derived growth factor beta polypeptide
Gene namesi
OrganismiSus scrofa (Pig)
Taxonomic identifieri9823 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaSuinaSuidaeSus
  • UP000008227 Componenti: Unplaced

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti


Pathology & Biotechi

Keywords - Diseasei


PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001623591 – ›15Platelet-derived growth factor subunit BAdd BLAST›15

Keywords - PTMi

Disulfide bond


Subunit structurei

Homodimer; antiparallel disulfide-linked dimer. Heterodimer with PDGFA; antiparallel disulfide-linked dimer. The PDGFB homodimer interacts with PDGFRA and PDGFRB homodimers, and with heterodimers formed by PDGFRA and PDGFRB. The heterodimer composed of PDGFA and PDGFB interacts with PDGFRB homodimers, and with heterodimers formed by PDGFRA and PDGFRB. Interacts with XLKD1 (By similarity).By similarity

GO - Molecular functioni

Family & Domainsi

Sequence similaritiesi

Belongs to the PDGF/VEGF growth factor family.Curated


Sequence statusi: Fragment.

Mass (Da):1,411
Last modified:February 1, 1991 - v1

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei151

Sequence databases


Entry informationi

Entry nameiPDGFB_PIG
AccessioniPrimary (citable) accession number: P20034
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1991
Last sequence update: February 1, 1991
Last modified: May 10, 2017
This is version 58 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program


Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome


  1. SIMILARITY comments
    Index of protein domains and families