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UniProtKB/Swiss-Prot O76039: Variant p.Gln791Pro

Cyclin-dependent kinase-like 5
Gene: CDKL5
Variant information

Variant position:  791
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 Glutamine (Q) to Proline (P) at position 791 (Q791P, p.Gln791Pro).
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 (Q) to medium size and hydrophobic (P)
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:  791
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  960
The length of the canonical sequence.

Location on the sequence:   LKEKEKQGFFRSMKKKKKKS  Q TVPNSDSPDLLTLQKSIHSA
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                         LKEKEKQGFFRSMKKKKKKSQTVPNSDSPDLLTLQKSIHSA

Mouse                         LKEKEKQGFFRSMKKKKKKTQTVPNTDGPDLLTLQKAIHSS

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 – 960 Cyclin-dependent kinase-like 5
Region 646 – 834 Disordered


Literature citations

Disruption of the serine/threonine kinase 9 gene causes severe X-linked infantile spasms and mental retardation.
Kalscheuer V.M.; Tao J.; Donnelly A.; Hollway G.; Schwinger E.; Kuebart S.; Menzel C.; Hoeltzenbein M.; Tommerup N.; Eyre H.; Harbord M.; Haan E.; Sutherland G.R.; Ropers H.-H.; Gecz J.;
Am. J. Hum. Genet. 72:1401-1411(2003)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2); INVOLVEMENT IN DEE2; CHROMOSOMAL TRANSLOCATION; VARIANT PRO-791;

Mutations in the X-linked cyclin-dependent kinase-like 5 (CDKL5/STK9) gene are associated with severe neurodevelopmental retardation.
Tao J.; Van Esch H.; Hagedorn-Greiwe M.; Hoffmann K.; Moser B.; Raynaud M.; Sperner J.; Fryns J.-P.; Schwinger E.; Gecz J.; Ropers H.-H.; Kalscheuer V.M.;
Am. J. Hum. Genet. 75:1149-1154(2004)
Cited for: VARIANTS DEE2 PHE-152 AND SER-175; VARIANT PRO-791;

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] THR-374; GLN-574; ALA-734; PRO-791 AND GLY-1023 (ISOFORM 2);

Novel mutations in the CDKL5 gene, predicted effects and associated phenotypes.
Russo S.; Marchi M.; Cogliati F.; Bonati M.T.; Pintaudi M.; Veneselli E.; Saletti V.; Balestrini M.; Ben-Zeev B.; Larizza L.;
Neurogenetics 10:241-250(2009)
Cited for: VARIANTS DEE2 THR-72 AND ARG-127; VARIANTS PRO-791 AND CYS-923 (ISOFORM 2);

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.