CDB15:0000466 EFEMP1 — EGFR

Experimentally validated in Human; Orthology-inferred in Mouse, Rat, Frog, Zebrafish, Chicken, Macaque, Pig, Dog, Cow, Chimp, Horse, Marmoset, Sheep

Title

Journal:; Year Published:

Abstract

EFEMP1 binds the EGF receptor and activates MAPK and Akt pathways in pancreatic carcinoma cells.

Biological chemistry, 2009; PubMed, Homo sapiens EFEMP1 — Homo sapiens EGFR

ABSTRACT: The EGF-related protein EFEMP1 (EGF-containing fibulin-like extracellular matrix protein 1) has been shown to promote tumor growth in human adenocarcinoma. To understand the mechanism of this action, the signal transduction activated upon treatment with this protein has been investigated. We show that EFEMP1 binds EGF receptor (EGFR) in a competitive manner relative to epidermal growth factor (EGF), implicating that EFEMP1 and EGF share the same or adjacent binding sites on the EGFR. Treatment of pancreatic carcinoma cells with purified EFEMP1 activates autophosphorylation of EGFR at the positions Tyr-992 and Tyr-1068, but not at the position Tyr-1048. This signal is further transduced to phosphorylation of Akt at position Thr-308 and p44/p42 MAPK (mitogen-activated protein kinase) at positions Thr-202 and Tyr-204. These downstream phosphorylation events can be inhibited by treatment with the EGFR kinase inhibitor PD 153035. The observed signal transduction upon treatment with EFEMP1 can contribute to the enhancement of tumor growth shown in pancreatic carcinoma cells overexpressing EFEMP1.

Basic Information on EFEMP1

Ligand Name: EGF containing fibulin extracellular matrix protein 1

Other Symbols: DHRD, FBNL, S1-5, FBLN3, MTLV

Ligand Location: secreted based on hpa, perplexity, uniprot

HGNC Gene Symbol Report: EFEMP1

GeneCards: EFEMP1

HGNC Gene Group: Fibulins

Functional Annotations for EFEMP1

Gene Ontologies: PAN-GO, AmiGO 2

Expression Profile: Human Protein Atlas (RNA and protein), Human Cell Atlas (RNA), GEPIA cancer vs normal (RNA), GeneCards (RNA and protein)

Disease Annotations: MalaCards, OMIM, Open Targets Platform, DISEASES (text mining), AI summary (LLM)

Interactions with other Receptors for EFEMP1

Basic Information on EGFR

Receptor Name: epidermal growth factor receptor

Other Symbols: ERBB, ERBB1, ERRP

Receptor Location: cell membrane based on hpa, perplexity, uniprot

HGNC Gene Symbol Report: EGFR

GeneCards: EGFR

HGNC Gene Group: Receptor kinases

Functional Annotations for EGFR

Gene Ontologies: PAN-GO, AmiGO 2

Expression Profile: Human Protein Atlas (RNA and protein), Human Cell Atlas (RNA), GEPIA cancer vs normal (RNA), GeneCards (RNA and protein)

Disease Annotations: MalaCards, OMIM, Open Targets Platform, DISEASES (text mining), AI summary (LLM)

Interactions with other Ligands for EGFR

AMH — EGFR ・ AREG — EGFR ・ BTC — EGFR ・ DCN — EGFR ・ EGF — EGFR ・ EPGN — EGFR ・ EREG — EGFR ・ HBEGF — EGFR ・ L1CAM — EGFR ・ SPINK1 — EGFR ・ TGFA — EGFR ・ TNC — EGFR ・ ANG — EGFR ・ CCN2 — EGFR ・ GPNMB — EGFR ・ LRIG1 — EGFR ・ LRIG2 — EGFR ・ MIF — EGFR ・ NRG3 — EGFR ・ PLA2G2A — EGFR ・ S100A4 — EGFR ・ ST6GAL1 — EGFR ・ WNT9A — EGFR