Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyHemerythrin-like 8070511 3001568 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyHemerythrin-like 8070511 3001568 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AHemerythrin_1e3aguA1 A: alpha bundlesX: Four-helical up-and-down bundleH: Hemerythrin (From Topology)T: HemerythrinF: Hemerythrin_1ECOD (1.6)
BHemerythrin_1e3aguB1 A: alpha bundlesX: Four-helical up-and-down bundleH: Hemerythrin (From Topology)T: HemerythrinF: Hemerythrin_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.20.120.50 Mainly Alpha Up-down Bundle Four Helix Bundle (Hemerythrin (Met), subunit A) Hemerythrin-likeCATH (4.3.0)
B1.20.120.50 Mainly Alpha Up-down Bundle Four Helix Bundle (Hemerythrin (Met), subunit A) Hemerythrin-likeCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF01814Hemerythrin HHE cation binding domain (Hemerythrin)Hemerythrin HHE cation binding domainIteration of the HHE family ([2]) found it to be related to Hemerythrin. It also demonstrated that what has been described as a single domain ([1]) in fact consists of two cation binding domains. Members of this family occur all across nature and are ...Iteration of the HHE family ([2]) found it to be related to Hemerythrin. It also demonstrated that what has been described as a single domain ([1]) in fact consists of two cation binding domains. Members of this family occur all across nature and are involved in a variety of processes. For instance, in Nereis diversicolor Swiss:P80255 binds Cadmium so as to protect the organism from toxicity ([3]). However Hemerythrin is classically described as Oxygen-binding through two attached Fe2+ ions. And the bacterial Swiss:Q7WX96 is a regulator of response to NO, which suggests yet another set-up for its metal ligands ([4]). In Staphylococcus aureus P72360 has been noted to be important when the organism switches to living in environments with low oxygen concentrations ([4]); perhaps this protein acts as an oxygen store or scavenger. This domain can bind oxygen (Matilla et.al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043)
Domain