NM_000142.5(FGFR3):c.1948A>C (p.Lys650Gln) AND Malignant tumor of urinary bladder

Clinical significance:Pathogenic (Last evaluated: Dec 15, 2007)

Review status:(0/4) 0 stars out of maximum of 4 stars

no assertion criteria provided

Based on:
1 submission [Details]
Record status:

Allele description [Variation Report for NM_000142.5(FGFR3):c.1948A>C (p.Lys650Gln)]

NM_000142.5(FGFR3):c.1948A>C (p.Lys650Gln)

FGFR3:fibroblast growth factor receptor 3 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
Genomic location:
Preferred name:
NM_000142.5(FGFR3):c.1948A>C (p.Lys650Gln)
  • NC_000004.12:g.1806162A>C
  • NG_012632.1:g.17851A>C
  • NM_000142.5:c.1948A>CMANE SELECT
  • NM_001163213.1:c.1954A>C
  • NM_001163213.2:c.1954A>C
  • NM_001354809.2:c.1951A>C
  • NM_001354810.2:c.1951A>C
  • NM_022965.4:c.1612A>C
  • NP_000133.1:p.Lys650Gln
  • NP_000133.1:p.Lys650Gln
  • NP_001156685.1:p.Lys652Gln
  • NP_001156685.1:p.Lys652Gln
  • NP_001341738.1:p.Lys651Gln
  • NP_001341739.1:p.Lys651Gln
  • NP_075254.1:p.Lys538Gln
  • LRG_1021t1:c.1948A>C
  • LRG_1021t2:c.1954A>C
  • LRG_1021:g.17851A>C
  • LRG_1021p1:p.Lys650Gln
  • LRG_1021p2:p.Lys652Gln
  • NC_000004.11:g.1807889A>C
  • NM_000142.4:c.1948A>C
  • NR_148971.2:n.2374A>C
  • P22607:p.Lys650Gln
NCBI staff reviewed the sequence information reported in PubMed 11314002 Fig. 1C to determine the location of this allele on the current reference sequence.
Protein change:
K538Q; LYS650GLN
UniProtKB: P22607#VAR_018390; OMIM: 134934.0022; OMIM: 134934.0024; dbSNP: rs78311289
NCBI 1000 Genomes Browser:
Molecular consequence:
  • NM_000142.5:c.1948A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001163213.1:c.1954A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001163213.2:c.1954A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001354809.2:c.1951A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001354810.2:c.1951A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_022965.4:c.1612A>C - missense variant - [Sequence Ontology: SO:0001583]
  • NR_148971.2:n.2374A>C - non-coding transcript variant - [Sequence Ontology: SO:0001619]


Malignant tumor of urinary bladder
Urinary bladder cancer; Urinary Bladder Neoplasms; Bladder cancer
MONDO: MONDO:0001187; MedGen: C0005684; OMIM: 109800

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
SCV000189233OMIMno assertion criteria providedPathogenic
(Dec 15, 2007)
somaticliterature only

PubMed (4)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedsomaticnot providednot providednot providednot providednot providednot providedliterature only



Distinct missense mutations of the FGFR3 lys650 codon modulate receptor kinase activation and the severity of the skeletal dysplasia phenotype.

Bellus GA, Spector EB, Speiser PW, Weaver CA, Garber AT, Bryke CR, Israel J, Rosengren SS, Webster MK, Donoghue DJ, Francomano CA.

Am J Hum Genet. 2000 Dec;67(6):1411-21. Epub 2000 Oct 27.

PubMed [citation]

Novel FGFR3 mutations creating cysteine residues in the extracellular domain of the receptor cause achondroplasia or severe forms of hypochondroplasia.

Heuertz S, Le Merrer M, Zabel B, Wright M, Legeai-Mallet L, Cormier-Daire V, Gibbs L, Bonaventure J.

Eur J Hum Genet. 2006 Dec;14(12):1240-7. Epub 2006 Aug 16. Erratum in: Eur J Hum Genet. 2006 Dec;14(12):1321.

PubMed [citation]
See all PubMed Citations (4)

Details of each submission

From OMIM, SCV000189233.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedliterature only PubMed (4)


Bellus et al. (2000) identified a 1948A-C transversion in the FGFR3 gene, predicting a lys650-to-gln (K650Q) amino acid substitution and causing hypochondroplasia (146000) in a form milder than that seen in individuals with the asn540-to-lys (134934.0010) or lys650-to-met (134934.0015) mutations.

Heuertz et al. (2006) identified the K560Q mutation in a patient with a moderate form of hypochondroplasia.

Leroy et al. (2007) identified the K650Q mutation in a patient with a mild form of hypochondroplasia who was also diagnosed with acanthosis nigricans at 8 years of age. Leroy et al. (2007) stated that the mutation is located in the second part (3-prime side) of the split tyrosine kinase domain in the intracellular portion of the single-pass transmembrane of the receptor and that it unfavorably modulates the receptor's physiologic downstream inhibitory signaling.

Sibley et al. (2001) found the same mutation, which they designated LYS652GLN (K652Q), in a transitional cell carcinoma of the bladder (109800).

OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1somaticnot providednot providednot providednot providednot providednot providednot providednot provided

Last Updated: Nov 27, 2021

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