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UniProtKB/Swiss-Prot Q5VT25: Variant p.Thr231Met

Serine/threonine-protein kinase MRCK alpha
Gene: CDC42BPA
Variant information

Variant position:  231
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LB/B
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:  From Threonine (T) to Methionine (M) at position 231 (T231M, p.Thr231Met).
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:  Change from medium size and polar (T) to medium size and hydrophobic (M)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -1
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

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  231
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1732
The length of the canonical sequence.

Location on the sequence:   MNGHIRLADFGSCLKLMEDG  T VQSSVAVGTPDYISPEILQA
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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         MNGHIRLADFGSCLKLMEDGTVQSSVAVGTPDYISPEILQA

Mouse                         MNGHIRLADFGSCLKLMEDGTVQSSVAVGTPDYISPEILQA

Rat                           MNGHIRLADFGSCLKLMEDGTVQSSVAVGTPDYISPEILQA

Sequence annotation in neighborhood:  
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 1 – 1732 Serine/threonine-protein kinase MRCK alpha
Domain 77 – 343 Protein kinase
Modified residue 222 – 222 Phosphoserine; by autocatalysis
Modified residue 234 – 234 Phosphoserine; by autocatalysis
Modified residue 240 – 240 Phosphothreonine; by autocatalysis
Mutagenesis 222 – 222 S -> L. Increase in autophosphorylation but not kinase activity.
Mutagenesis 234 – 234 S -> A. Loss of autophosphorylation and kinase activity.
Mutagenesis 240 – 240 T -> A. Loss of autophosphorylation and kinase activity.


Literature citations

Patterns of somatic mutation in human cancer genomes.
Greenman C.; Stephens P.; Smith R.; Dalgliesh G.L.; Hunter C.; Bignell G.; Davies H.; Teague J.; Butler A.; Stevens C.; Edkins S.; O'Meara S.; Vastrik I.; Schmidt E.E.; Avis T.; Barthorpe S.; Bhamra G.; Buck G.; Choudhury B.; Clements J.; Cole J.; Dicks E.; Forbes S.; Gray K.; Halliday K.; Harrison R.; Hills K.; Hinton J.; Jenkinson A.; Jones D.; Menzies A.; Mironenko T.; Perry J.; Raine K.; Richardson D.; Shepherd R.; Small A.; Tofts C.; Varian J.; Webb T.; West S.; Widaa S.; Yates A.; Cahill D.P.; Louis D.N.; Goldstraw P.; Nicholson A.G.; Brasseur F.; Looijenga L.; Weber B.L.; Chiew Y.-E.; DeFazio A.; Greaves M.F.; Green A.R.; Campbell P.; Birney E.; Easton D.F.; Chenevix-Trench G.; Tan M.-H.; Khoo S.K.; Teh B.T.; Yuen S.T.; Leung S.Y.; Wooster R.; Futreal P.A.; Stratton M.R.;
Nature 446:153-158(2007)
Cited for: VARIANTS [LARGE SCALE ANALYSIS] LYS-50; MET-231; THR-537; MET-780; CYS-790; THR-1148; HIS-1211; ILE-1317; LYS-1418; VAL-1469 AND ALA-1618;

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.