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UMLS. CSP-HL7-ICD9CM-NCI-NDFRT-RXNORM
%
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
H H+ H1 HA HB HC HD HE HF HG HH HI HK HL HM HN HO HP HQ HR HS HT HU HV HX HY HZ
HEA HEB HEC HED HEE HEF HEI HEL HEM HEN HEP HER HES HET HEU HEV HEX HEY

helix loop helix

[The first DNA-binding protein motif to be recognized. Originally identified in bacterial proteins and found in many DNA-binding proteins from both eukaryotes and prokaryotes. They are constructed from two alpha helices connected by a short extended chain of amino acids, which constitute the "turn." The two helices are held at a fixed angle, primarily through interactions between the two helices. ( NCI )]
UMLS (CSP) C0282642
 
Spatial Concept
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