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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O00238: Variant p.Cys53Arg

Bone morphogenetic protein receptor type-1B
Gene: BMPR1B
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Variant information Variant position: help 53 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance
Residue change: help From Cysteine (C) to Arginine (R) at position 53 (C53R, p.Cys53Arg). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: help Change from medium size and polar (C) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page
Variant description: help In AMD3; mouse BMPR1B construct containing this mutation shows loss of GDF5-dependent receptor activation, chicken BMPR1B construct containing this mutation does not show reduced chondrocyte differentiation, mouse BMPR1B construct containing this mutation shows no loss of cell membrane localization. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 53 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 502 The length of the canonical sequence.
Location on the sequence: help KCHHHCPEDSVNNICSTDGY C FTMIEEDDSGLPVVTSGCLG The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Residue conservation: help The multiple alignment of the region surrounding the variant against various orthologous sequences. 
Human                         KCHHHCPEDSVNNICSTDGYCFTMIEEDDSGLPVVTSGCLG

Mouse                         KCHHHCPEDSVNNICSTDGYCFTMIEEDDSGMPVVTSGCLG

Chicken                       QCHHHCPEDSVNSTCSTDGYCFTIIEEDDSGGHLVTKGCLG
Sequence annotation in neighborhood: help The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.
TypePositionsDescription
Chain 14 – 502 Bone morphogenetic protein receptor type-1B
Topological domain 14 – 126 Extracellular
Disulfide bond 32 – 53
Disulfide bond 47 – 71



Literature citations
Homozygous missense and nonsense mutations in BMPR1B cause acromesomelic chondrodysplasia-type Grebe.
Graul-Neumann L.M.; Deichsel A.; Wille U.; Kakar N.; Koll R.; Bassir C.; Ahmad J.; Cormier-Daire V.; Mundlos S.; Kubisch C.; Borck G.; Klopocki E.; Mueller T.D.; Doelken S.C.; Seemann P.;
Eur. J. Hum. Genet. 22:726-733(2014)
Cited for: VARIANT AMD3 ARG-53; CHARACTERIZATION OF VARIANT AMD3 ARG-53;
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.