UniProtKB/Swiss-Prot P21817: Variant p.Arg2454His

Ryanodine receptor 1
Gene: RYR1
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Variant information Variant position:

2454 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 Arginine (R) to Histidine (H) at position 2454 (R2454H, p.Arg2454His). 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 large size and basic (R) to medium size and polar (H) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

0 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 MHS1; severe form; increases calcium-induced calcium release activity. Any additional useful information about the variant.
Other resources:

Links to websites of interest for the variant.

Variant rs118192122 [ dbSNP | Ensembl ]

Sequence information Variant position:

2454 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

5038 The length of the canonical sequence.
Location on the sequence:

GRCAPEMHLIQAGKGEALRI R AILRSLVPLEDLVGIISLPL 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                         GRCAPEMHLIQAGKGEALRIRAILRSLVPLEDLVGIISLPL

Mouse                         GRCAPETHLIQAGKGEALRIRAILRSLVPLDDLVGIISLPL

Rat                           GRCAPEMHLIQAGKGEALRIRAILRSLVPLDDLVGIISLPL

Pig                           GRCAPEMHLIQAGKGEALRIRAILRSLVPLDDLVGIISLPL

Rabbit                        GRCAPEMHLIQAGKGEALRIRAILRSLVPLDDLVGIISLPL

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 – 5038	Ryanodine receptor 1
Topological domain	1 – 4559	Cytoplasmic
Region	841 – 2959	6 X approximate repeats

Literature citations
Mutation screening of the RYR1 gene and identification of two novel mutations in Italian malignant hyperthermia families.
Barone V.; Massa O.; Intravaia E.; Bracco A.; Di Martino A.; Tegazzin V.; Cozzolino S.; Sorrentino V.;
J. Med. Genet. 36:115-118(1999)
Cited for: VARIANTS MHS1 LEU-2435 AND HIS-2454; Malignant hyperthermia in infancy and identification of novel RYR1 mutation.
Chamley D.; Pollock N.A.; Stowell K.M.; Brown R.L.;
Br. J. Anaesth. 84:500-504(2000)
Cited for: VARIANTS MHS1 TRP-2452 AND HIS-2454; North American malignant hyperthermia population: screening of the ryanodine receptor gene and identification of novel mutations.
Sambuughin N.; Sei Y.; Gallagher K.L.; Wyre H.W.; Madsen D.; Nelson T.E.; Fletcher J.E.; Rosenberg H.; Muldoon S.M.;
Anesthesiology 95:594-599(2001)
Cited for: VARIANTS MHS1 CYS-163; ARG-248; CYS-614; MET-2168; MET-2206; ILE-2214; THR-2367; ASN-2431; ARG-2434 AND HIS-2454; Mutation screening in the ryanodine receptor 1 gene (RYR1) in patients susceptible to malignant hyperthermia who show definite IVCT results: identification of three novel mutations.
Rueffert H.; Olthoff D.; Deutrich C.; Meinecke C.D.; Froster U.G.;
Acta Anaesthesiol. Scand. 46:692-698(2002)
Cited for: VARIANTS MHS1 CYS-163; ASN-166; ARG-341; HIS-401; CYS-614; GLU-2129; MET-2168; MET-2206; THR-2428; ARG-2434; HIS-2435; TRP-2452 AND HIS-2454; Scanning for mutations of the ryanodine receptor (RYR1) gene by denaturing HPLC: detection of three novel malignant hyperthermia alleles.
Tammaro A.; Bracco A.; Cozzolino S.; Esposito M.; Di Martino A.; Savoia G.; Zeuli L.; Piluso G.; Aurino S.; Nigro V.;
Clin. Chem. 49:761-768(2003)
Cited for: VARIANTS MHS1 CYS-44; CYS-533; LEU-2117; PRO-2163; MET-2168; LEU-2435 AND HIS-2454; VARIANT LYS-2101; Malignant hyperthermia in North America: genetic screening of the three hot spots in the type I ryanodine receptor gene.
Sei Y.; Sambuughin N.N.; Davis E.J.; Sachs D.; Cuenca P.B.; Brandom B.W.; Tautz T.; Rosenberg H.; Nelson T.E.; Muldoon S.M.;
Anesthesiology 101:824-830(2004)
Cited for: VARIANTS MHS1 CYS-163; ARG-248; CYS-614; CYS-2163; MET-2168; MET-2206; ILE-2214; THR-2350; THR-2367; ASN-2431; ARG-2434; VAL-2437; HIS-2454 AND PRO-4824; Correlations between genotype and pharmacological, histological, functional, and clinical phenotypes in malignant hyperthermia susceptibility.
Monnier N.; Kozak-Ribbens G.; Krivosic-Horber R.; Nivoche Y.; Qi D.; Kraev N.; Loke J.; Sharma P.; Tegazzin V.; Figarella-Branger D.; Romero N.; Mezin P.; Bendahan D.; Payen J.-F.; Depret T.; Maclennan D.H.; Lunardi J.;
Hum. Mutat. 26:413-425(2005)
Cited for: VARIANTS MHS1 ARG-35; CYS-163; LEU-163; ARG-165; ASN-166; CYS-177; CYS-178; VAL-227; ARG-248; TRP-328; ARG-341; SER-401; HIS-401; MET-403; SER-522; TRP-552; CYS-614; LEU-614; CYS-2163; HIS-2163; MET-2168; MET-2206; ARG-2206; ASP-2344; MET-2346; THR-2350; THR-2428; ARG-2434; HIS-2435; CYS-2454; HIS-2454; CYS-2458; MET-3916; SER-4684; GLN-4737; TRP-4737; ILE-4826; VAL-4838; ILE-4849; ARG-4876; GLU-4939 AND LEU-4973; VARIANTS TRP-2676 AND SER-2787; CHARACTERIZATION OF VARIANTS MHS1 LEU-163; MET-2206; THR-2428; CYS-2454 AND HIS-2454; FUNCTION; TRANSPORTER ACTIVITY; ACTIVITY REGULATION; Ryanodine receptor type 1 gene variants in the malignant hyperthermia-susceptible population of the United States.
Brandom B.W.; Bina S.; Wong C.A.; Wallace T.; Visoiu M.; Isackson P.J.; Vladutiu G.D.; Sambuughin N.; Muldoon S.M.;
Anesth. Analg. 116:1078-1086(2013)
Cited for: VARIANTS MHS1 ALA-40; CYS-163; ARG-248; ARG-341; PRO-487; ALA-518; CYS-614; HIS-1043; HIS-2163; MET-2206; HIS-2248; HIS-2351; MET-2354; LEU-2358; GLN-2383; ARG-2434; HIS-2454; ARG-3711; VAL-4178; ARG-4230; GLU-4837; HIS-4861 AND GLY-4906; VARIANTS CMYP1A TRP-975; MET-2168 AND GLY-3238; VARIANTS MET-974; LEU-1109; ARG-1393; LEU-1787; CYS-2060 AND VAL-2321; Genotype-phenotype correlations of malignant hyperthermia and central core disease mutations in the central region of the RYR1 channel.
Murayama T.; Kurebayashi N.; Ogawa H.; Yamazawa T.; Oyamada H.; Suzuki J.; Kanemaru K.; Oguchi K.; Iino M.; Sakurai T.;
Hum. Mutat. 37:1231-1241(2016)
Cited for: CHARACTERIZATION OF VARIANTS MHS1 CYS-2163; HIS-2163; MET-2168; MET-2206; THR-2350; ARG-2434; HIS-2435; CYS-2454; HIS-2454; CYS-2458; HIS-2458 AND HIS-2508; CHARACTERIZATION OF VARIANT CMYP1A CYS-2508; CHARACTERIZATION OF VARIANT ALA-2375 AND HIS-2508; FUNCTION; TRANSPORTER ACTIVITY;

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.