Sequence-based mutation analysis HEXA

Mutations

SNP-id	codon number	mutation codon	mutation triplet
rs4777505	29	Asn -> Ser	AAC -> AGC
rs121907979	39	Leu -> Arg	CTT -> CGT
rs61731240	179	His -> Asp	CAT -> GAT
rs121907974	211	Phe -> Ser	TTC -> TCC
rs61747114	248	Leu -> Phe	CTT -> TTT
rs1054374	293	Ser -> Ile	AGT -> ATT
rs121907967	329	Trp -> TER	TGG -> TAG
rs1800430	399	Asn -> Asp	AAC -> GAC
rs121907982	436	Ile -> Val	ATA -> GTA
rs121907968	485	Trp -> Arg	gTGG -> CGG

Analysis of the mutations

rs4777505: Asn -> Ser

pysicochemical properities

Asn	Ser	consequences
polar, small, hydrophilic, negatively charged	polar, tiny, hydrophilic, neutral	Both amino acids are polar and hydrophilic. Ser is tiny, Asn therefore is a small amino acid. The biggest difference between these two amino acid is, that Asn is negatively charged and Ser is neutral. But this is not that big difference and therefore we suggest, that this mutation do not delete the structure and function of the protein.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Asparagine	Amino acid Serine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
20	36 (Asp)	0 (Cys, Met)	5	7 (Asp)	2 (Cys, Leu, Phe, Trp)	1	1 (Asp, His, Ser)	-4 (Trp)

Conservation analysis with multiple alignments

Mutation in the multiple alignment

rs121907979: Leu -> Arg

pysicochemical properities

Leu	Arg	consequences
aliphatic, hydrophobic, neutral	positive charged, polar, hydrophilic	Leucine is smaller and without a positive charge. Therefore, Arg is too big for the position of Leu, therefore, the change of Leu with Arg has to cause changes in the 3D structure of the protein. Furthermore, Leu is a hydrophobic amino acid, whereas Arg is hydrophilic. This is the complete contrary and therefore we suggest, that the protein will not function any longer.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Leucine	Amino acid Arginine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
1	22 (Ile)	0 (Asp, Cys)	4	20 (Met)	2 (Cys)	-2	0 (Phe)	-4 (Asp, Gly)

rs61731240: His -> Asp

pysicochemical properities

His	Asp	consequences
aromatic, positive charged, polar, hydrophilic	negative charged, small, polar, hydrophilic	On the one side, both amino acids are polar, but on the other side, His is positively charged, while Asp is negatively charged, which is an essential difference between these both amino acids. Therefore it is very likely, that this change causes big changes in the structure of the protein and the protein therefore will probably not work any longer. Furthermore, the structure of the two amino acids is very different, because of the aromatic ring of the His.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Histidine	Amino acid Aspartate	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
3	20 (Gln)	0 (Ile, Met)	4	7 (Gln)	2 (Ala, Cys, Gly, Ile, Leu, Met, Phe, Thr, Trp, Val)	-1	2 (Tyr)	-3 (Cys, Ile, Leu, Val)

rs121907974: Phe -> Ser

pysicochemical properities

Phe	Ser	consequences
polar, tiny, hydrophilic, neutral	aliphatic, hydrophobic, neutral	Ile is much bigger than Ser and also is branched, because it is an aliphatic amino acid. Therefore the structure of both amino acids is really different and Ile is to big for the position where Ser was. Therefore, there has to be a big change in the 3D structure of the protein and the protein probably will loose its function.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Phenylalanine	Amino acid Serine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
2	28 (Tyr)	0 (Asp, Cys, Glu, Lys, Pro, Val)	2	20 (Tyr)	1 (Arg, Asp, Cys, Gln, Glu, Gly, Lys, Pro)	-2	3 (Tyr)	-4 (Pro)

rs61747114: Leu -> Phe

pysicochemical properities

Leu	Phe	consequences
aliphatic, hydrophobic, neutral	aromatic, hydrophobic, neutral	Leu is an aliphatic amino acid, wheras Phe is an aromatic amino acid. This means, that Phe has an aromatic ring in its structure. But both amino acids are relatively big and so it is possible, that the exchange of this amino acids do not change the structure of the protein that much. Therefore, we suggest it is possible, that the protein will work.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Leucine	Amino acid Phenylalanine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
13	45 (Met)	0 (Asp, Cys)	13	20 (Met)	2 (Cys)	0	2 (Ile, Met)	-4 (Asp, Gly)

rs1054374: Ser -> Ile

pysicochemical properities

Ser	Ile	consequences
polar, tiny, hydrophilic, neutral	aliphatic, hydrophobic, neutra	Ile is much bigger than Ser and also is branched, because it is an aliphatic amino acid. Therefore the structure of both amino acids is really different and Ile is to big for the position where Ser was. Therefore, there has to be a big change in the 3D structure of the protein and the protein probably will loose its function.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Serine	Amino acid Isoleucine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
2	38 (Thr)	1 (Leu)	5	9 (Ala, Gly, Pro, Thr)	3 (Phe)	-2	1 (Ala, Asn, Thr)	-3 (Trp)

rs121907967: Trp -> TER

pysicochemical properities

Trp	TER	consequences
aromatic, polar, hydrophobic	TER	By this change, the protein is not complete, therefore it is not possible for the protein to fold and to function.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Tryptophan		Visualization of the mutated protein

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
X	2 (Arg)	0 (all, except Arg, Phe, Ser, Tyr)	X	2 (Arg)	0 (all, except Arg, His, Leu, Phe, Ser, Tyr)	X	2 (Tyr)	-4 (Asn, Asp, Pro)

rs1800430: Asn -> Asp

pysicochemical properities

Asn	Asp	consequences
polar, small, hydrophilic, negatively charged	polar, small, hydrophilic, negatively charged	Both amino acids have the same properities and therefore we suggest that an exchange of these two amino acids do not destroy the protein structure and function

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Asparagine	Amino acid Aspartic acid	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
36	36 (Asp)	0 (Cys, Met)	7	7 (Asp)	2 (Cys, Leu, Phe, Trp)	1	1 (Asp, His, Ser)	-4 (Trp)

rs121907982: Ile -> Val

pysicochemical properities

Ile	Val	consequences
aliphatic, hydrophobic, neutra	aliphatic, hydrophobic, neutral	In this case, the pysicochemical properties are equal. Furthermore, they almost agree in their size. Therefore, we suggest, that there is no big effect on the 3D structure of the protein and therefore, also no big effect on the protein function.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Isoleucine	Amino acid Valin	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
33	33 (Val)	0 (Gly, Pro, Trp)	9	9 (Val)	1 (Trp)	3	3 (Val)	-4 (Gly)

rs121907968: Trp -> Arg

pysicochemical properities

Trp	Arg	consequences
aromatic, polar, hydrophobic, neutral	positive charged, polar, hydrophilic	Trp is very big, because of two aromatic rings in its structure. Furthermore, it is hydrophobic, whereas, Arg is a hydrophilic amino acid. Therefore, the changes in the 3D structure might be extreme and delete the function of the protein.

Visualisation of the mutation

picture original aa	picture mutated aa	combined picture
Amino acid Tryptophan	Amino acid Arginine	Picture which visualize the mutation

Subsitution Matrices values

PAM 1			Pam 250			BLOSOUM 62
value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution	value aa	most frequent substitution	rarest substitution
2	2 (Arg)	0 (all, except Arg, Phe, Ser, Tyr)	2	2 (Arg)	0 (all, except Arg, His, Leu, Phe, Ser, Tyr)	-3	2 (Tyr)	-4 (Asn, Asp, Pro)

Summary page

[Here] you can find all results of the different analysis in one table.