UniProtKB/Swiss-Prot O14777: Variant p.Ser66Ala

Kinetochore protein NDC80 homolog
Gene: NDC80
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Variant information Variant position:

66 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 Serine (S) to Alanine (A) at position 66 (S66A, p.Ser66Ala). 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 small size and polar (S) to small size and hydrophobic (A) 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.

Variant rs16943490 [ dbSNP | Ensembl ]

Sequence information Variant position:

66 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

642 The length of the canonical sequence.
Location on the sequence:

NKPTSERKVSLFGKRTSGHG S RNSQLGIFSSSEKIKDPRPL 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                         NKP---TSERKVSLFGKRTSG-H-------GSRNS-------QLGIFSSS-EKIKDPRPL

Mouse                         HKP---TSERKVSIFGKRTSG-H-------GSRNS------

Chicken                       SKTTSATSERKVSFFGKRASGAG-------GSRNS------

Xenopus laevis                SKPHSGTSEKKTSFFGKRASN-G-------TARTS------

Xenopus tropicalis            SKPHSGTSERKTSFFGKRMSN-G-------TARTS------

Zebrafish                     PKPQSTTSERRTSFFGKGIGA-G-------GQRNS------

Caenorhabditis elegans        SQP-------RVSLFNTKNSS-V------------------

Baker's yeast                 PTGGINKNKRTRSTVAGGTNGTALALNDKSNSRNSVSRLSI

Fission yeast                 SSRVLTPTMRPSLAPNTRRSS-V-------RVSNA------

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.

Type	Positions	Description
Chain	1 – 642	Kinetochore protein NDC80 homolog
Region	1 – 445	Interaction with the N-terminus of CDCA1
Region	1 – 250	Nuclear localization
Region	1 – 74	Disordered
Modified residue	53 – 53	N6-acetyllysine
Modified residue	55 – 55	Phosphoserine
Modified residue	59 – 59	N6-acetyllysine
Modified residue	62 – 62	Phosphoserine
Modified residue	69 – 69	Phosphoserine
Mutagenesis	53 – 53	K -> Q. Mimics acetylation, leading to increased kinetochore-microtubule attachment; when associated with Q-59.
Mutagenesis	53 – 53	K -> R. Impaired acetylation, leading to reduced kinetochore-microtubule attachment; when associated with R-59.
Mutagenesis	59 – 59	K -> Q. Mimics acetylation, leading to increased kinetochore-microtubule attachment; when associated with Q-53.
Mutagenesis	59 – 59	K -> R. Impaired acetylation, leading to reduced kinetochore-microtubule attachment; when associated with R-53.

Literature citations
No reference for the current variant in UniProtKB/Swiss-Prot.

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.