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UniProtKB/Swiss-Prot O75419: Variant p.Gln68Arg

Cell division control protein 45 homolog
Gene: CDC45
Variant information

Variant position:  68
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  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:  From Glutamine (Q) to Arginine (R) at position 68 (Q68R, p.Gln68Arg).
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 large size and basic (R)
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

Variant description:  In MGORS7; decreased protein level.
Any additional useful information about the variant.

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



Sequence information

Variant position:  68
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  566
The length of the canonical sequence.

Location on the sequence:   TLVPVSGWQELETAFLEHKE  Q FHYFILINCGANVDLLDILQ
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                         TLVPVSGWQELETAF---LEHKEQFHYFILINCGANVDLLDILQ

Mouse                         TLVPVSGWQELETAY---LEHKEQFSYFILINCGANVDLLD

Xenopus laevis                TLVPVSGWQELETLF---LEHKEQFRYFVLINCGANIDLLE

Slime mold                    NIKAVSGYEDLENVNSTLLE-NEEIKSIIMINCGGNIDITN

Baker's yeast                 QIVPIFGYSELRRHYSQL---DDNINSLLLVGFGGVIDLEA

Fission yeast                 KIRPVSGYRDLEQANKTLLEQNEDIKFIILLNCGTMVDLNN

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 – 566 Cell division control protein 45 homolog
Alternative sequence 68 – 113 Missing. In isoform 2.
Turn 66 – 68


Literature citations

Mutations in CDC45, encoding an essential component of the pre-initiation complex, cause Meier-Gorlin syndrome and craniosynostosis.
Fenwick A.L.; Kliszczak M.; Cooper F.; Murray J.; Sanchez-Pulido L.; Twigg S.R.; Goriely A.; McGowan S.J.; Miller K.A.; Taylor I.B.; Logan C.; Bozdogan S.; Danda S.; Dixon J.; Elsayed S.M.; Elsobky E.; Gardham A.; Hoffer M.J.; Koopmans M.; McDonald-McGinn D.M.; Santen G.W.; Savarirayan R.; de Silva D.; Vanakker O.; Wall S.A.; Wilson L.C.; Yuregir O.O.; Zackai E.H.; Ponting C.P.; Jackson A.P.; Wilkie A.O.; Niedzwiedz W.; Bicknell L.S.;
Am. J. Hum. Genet. 99:125-138(2016)
Cited for: INVOLVEMENT IN MGORS7; VARIANTS MGORS7 ARG-68; HIS-76; GLY-155; CYS-157; GLY-226; TYR-264; VAL-298; THR-321; 424-ARG--SER-566 DEL; LEU-463; LEU-496 AND TRP-554; CHARACTERIZATION OF VARIANTS MGORS7 ARG-68; HIS-76; CYS-157; GLY-226 AND VAL-298;

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.