Landscape of activating cancer mutations in FGFR kinases and their differential responses to inhibitors in clinical use
[Paper-level Aggregated] PMCID: PMC5029699
Evidence Type(s): Functional
Summary: Mutation: K650 | Summary: The K650 mutation alters molecular or biochemical function, with assessments indicating its impact on FGFR3 activity.
Evidence Type: Functional Mutation: K650E | Summary: The K650E mutation significantly increases auto-phosphorylation of FGFR3 KD, alters the conformation of the A-loop, and is associated with altered kinase activity, indicating a change in molecular function.
Evidence Type: Functional Mutation: K650N | Summary: The K650N mutation results in less activation of FGFR3 KD auto-phosphorylation compared to K650E, suggesting it alters molecular function.
Evidence Type: Functional Mutation: N540 | Summary: The N540 mutation is part of the molecular brake in the FGFR3 structure, suggesting it alters molecular or biochemical function.
Evidence Type: Functional Mutation: N540K | Summary: The N540K mutation leads to a substantial increase in auto-phosphorylation of FGFR3 KD and is located near the ATP binding pocket, indicating a change in molecular function.
Evidence Type: Functional Mutation: N540S | Summary: The N540S mutation is associated with reduced activation of FGFR3 KD auto-phosphorylation and is located near the ATP binding pocket, suggesting it may alter the molecular function of FGFR3.
Evidence Type: Functional Mutation: I538 | Summary: The I538 mutation is part of the molecular brake in the FGFR3 structure, indicating it may affect molecular or biochemical function.
Evidence Type: Functional Mutation: I538V | Summary: The I538V mutation had a substantial effect on drug binding, indicating an alteration in molecular function.
Evidence Type: Functional Mutation: R669 | Summary: The R669 mutation alters molecular interactions and is associated with cancer, indicating its contribution to tumor development or progression.
Evidence Type: Functional Mutation: R669G | Summary: The R669G mutation is the most activating variant, resulting in increased auto-phosphorylation of FGFR3 KD, alters molecular interactions, and promotes an active conformation, indicating a change in molecular function.
Evidence Type: Functional Mutation: R669Q | Summary: The R669Q mutation results in increased auto-phosphorylation of FGFR3 KD, indicating an alteration in molecular function.
Evidence Type: Functional Mutation: D641 | Summary: The D641 mutation is involved in forming a hydrogen bond with the drug JNJ42756493, indicating that it alters molecular interactions within the FGFR1 protein.
Evidence Type: Functional Mutation: D641G | Summary: The D641G mutation resulted in an increase of auto-phosphorylation and substrate phosphorylation, indicating an alteration in molecular function.
Evidence Type: Functional Mutation: D641N | Summary: The D641N mutation also resulted in an increase of auto-phosphorylation and substrate phosphorylation, indicating an alteration in molecular function.
Evidence Type: Functional Mutation: G637W | Summary: The G637W mutation resulted in kinase inactivation, demonstrating an alteration in molecular function.
Evidence Type: Functional Mutation: G697C | Summary: The G697C mutation alters molecular or biochemical function, although it does not affect kinase activity directly as measured in vitro.
Evidence Type: Functional Mutation: D617G | Summary: The D617G mutation completely abolished kinase activity, indicating that it alters molecular function.
Evidence Type: Functional Mutation: V555 | Summary: The V555 mutation is associated with an increase in kinase activity, indicating an alteration in molecular function.
Evidence Type: Functional Mutation: V555M | Summary: The V555M mutation is described as a gatekeeper mutation that may alter the molecular function of FGFR3, impacting its interaction with inhibitors.
Evidence Type: Functional Mutation: E466K | Summary: The E466K mutation is predicted to reduce protein production or completely inactivate the kinase, indicating a functional alteration.
Evidence Type: Functional Mutation: R675G | Summary: The R675G mutation alters the molecular interactions within the FGFR1 kinase domain, leading to a change in conformation that affects the overall structure and function of the protein.
Evidence Type: Functional Mutation: R675 | Summary: The R675 residue is involved in critical hydrogen bonding and van der Waals interactions that are essential for maintaining the inactive conformation of FGFR1, indicating its role in molecular function.
Evidence Type: Functional Mutation: H650 | Summary: The H650 residue participates in hydrogen bonding with R675, which is crucial for the structural integrity of the inactive FGFR1 kinase domain, highlighting its functional importance.
Evidence Type: Functional Mutation: Y653 | Summary: The Y653 residue is involved in van der Waals interactions with R675, contributing to the structural stability of the FGFR1 kinase domain and its functional state.
Gene→Variant (gene-first): FGFR3(2261):K650 FGFR3(2261):K650E FGFR3(2261):K650N FGFR3(2261):N540 FGFR3(2261):N540K FGFR3(2261):N540S FGFR2(2263):I538 FGFR2(2263):I538V FGFR3(2261):R669 FGFR3(2261):R669G FGFR3(2261):R669Q FGFR1(2260):D641 FGFR1(2260):D641G FGFR1(2260):D641N FGFR1(2260):G637W FGFR3(2261):G697C FGFR3(2261):D617G FGFR3(2261):V555 FGFR3(2261):V555M FGFR2(2263):E466K FGFR1(2260):R675G FGFR1(2260):R675 FGFR3(2261):H650 FGFR2(2263):Y653
Genes: FGFR3(2261) FGFR2(2263) FGFR1(2260)
Variants: K650 K650E K650N N540 N540K N540S I538 I538V R669 R669G R669Q D641 D641G D641N G637W G697C D617G V555 V555M E466K R675G R675 H650 Y653