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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P19827: Variant p.Gln595Arg

Inter-alpha-trypsin inhibitor heavy chain H1
Gene: ITIH1
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Variant information Variant position: help 595 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Glutamine (Q) to Arginine (R) at position 595 (Q595R, p.Gln595Arg). 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: help 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: help 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

Polymorphism: help There are 3 common alleles; ITIH1*1 with Glu-585/Gln-595, ITIH1*2 with Val-585/Arg-595 and ITIH1*3 with Glu-585/Arg-595. Additional information on the polymorphism described.
Variant description: help In allele ITIH1*2 and allele ITIH1*3. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 595 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 911 The length of the canonical sequence.
Location on the sequence: help LAKRMKVDREERANLSSQAL Q MSLDYGFVTPLTSMSIRGMA 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         LAKRMKVDREERANLSSQALQMSLDYGFVTPLTSMSIRGMA

Mouse                         LAKRMKTEGEERANLSSQVLKMSLDYHFVTPLTSLTIRGLT

Pig                           LAKRMKLEWAEKASVSAKALQMSLDYQFVTPLTSMTIRGMA

Bovine                        LAKRMKLEGQEKANVSAKALQMSLAYQFVTPLTSMTVRGMT

Sequence annotation in neighborhood: help 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 35 – 672 Inter-alpha-trypsin inhibitor heavy chain H1
Region 387 – 911 Hyaluronan-binding
Glycosylation 588 – 588 N-linked (GlcNAc...) (complex) asparagine
Helix 583 – 600



Literature citations
Human inter-alpha-trypsin inhibitor: full-length cDNA sequence of the heavy chain H1.
Diarra-Mehrpour M.; Bourguignon J.; Bost F.; Sesboue R.; Muschio F.; Sarafan N.; Martin J.-P.;
Biochim. Biophys. Acta 1132:114-118(1992)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); VARIANTS THR-263; VAL-585 AND ARG-595; Complete sequencing and characterization of 21,243 full-length human cDNAs.
Ota T.; Suzuki Y.; Nishikawa T.; Otsuki T.; Sugiyama T.; Irie R.; Wakamatsu A.; Hayashi K.; Sato H.; Nagai K.; Kimura K.; Makita H.; Sekine M.; Obayashi M.; Nishi T.; Shibahara T.; Tanaka T.; Ishii S.; Yamamoto J.; Saito K.; Kawai Y.; Isono Y.; Nakamura Y.; Nagahari K.; Murakami K.; Yasuda T.; Iwayanagi T.; Wagatsuma M.; Shiratori A.; Sudo H.; Hosoiri T.; Kaku Y.; Kodaira H.; Kondo H.; Sugawara M.; Takahashi M.; Kanda K.; Yokoi T.; Furuya T.; Kikkawa E.; Omura Y.; Abe K.; Kamihara K.; Katsuta N.; Sato K.; Tanikawa M.; Yamazaki M.; Ninomiya K.; Ishibashi T.; Yamashita H.; Murakawa K.; Fujimori K.; Tanai H.; Kimata M.; Watanabe M.; Hiraoka S.; Chiba Y.; Ishida S.; Ono Y.; Takiguchi S.; Watanabe S.; Yosida M.; Hotuta T.; Kusano J.; Kanehori K.; Takahashi-Fujii A.; Hara H.; Tanase T.-O.; Nomura Y.; Togiya S.; Komai F.; Hara R.; Takeuchi K.; Arita M.; Imose N.; Musashino K.; Yuuki H.; Oshima A.; Sasaki N.; Aotsuka S.; Yoshikawa Y.; Matsunawa H.; Ichihara T.; Shiohata N.; Sano S.; Moriya S.; Momiyama H.; Satoh N.; Takami S.; Terashima Y.; Suzuki O.; Nakagawa S.; Senoh A.; Mizoguchi H.; Goto Y.; Shimizu F.; Wakebe H.; Hishigaki H.; Watanabe T.; Sugiyama A.; Takemoto M.; Kawakami B.; Yamazaki M.; Watanabe K.; Kumagai A.; Itakura S.; Fukuzumi Y.; Fujimori Y.; Komiyama M.; Tashiro H.; Tanigami A.; Fujiwara T.; Ono T.; Yamada K.; Fujii Y.; Ozaki K.; Hirao M.; Ohmori Y.; Kawabata A.; Hikiji T.; Kobatake N.; Inagaki H.; Ikema Y.; Okamoto S.; Okitani R.; Kawakami T.; Noguchi S.; Itoh T.; Shigeta K.; Senba T.; Matsumura K.; Nakajima Y.; Mizuno T.; Morinaga M.; Sasaki M.; Togashi T.; Oyama M.; Hata H.; Watanabe M.; Komatsu T.; Mizushima-Sugano J.; Satoh T.; Shirai Y.; Takahashi Y.; Nakagawa K.; Okumura K.; Nagase T.; Nomura N.; Kikuchi H.; Masuho Y.; Yamashita R.; Nakai K.; Yada T.; Nakamura Y.; Ohara O.; Isogai T.; Sugano S.;
Nat. Genet. 36:40-45(2004)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1; 2 AND 3); VARIANTS VAL-585 AND ARG-595; Molecular basis of inter-alpha-trypsin inhibitor heavy chain H1 (ITIH1) polymorphism.
Ding M.; Umetsu K.; Yuasa I.; Sato M.; Harada A.; Suzuki T.;
Hum. Genet. 95:435-436(1995)
Cited for: VARIANTS VAL-585 AND ARG-595;
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.